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Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Sampling Errors in Seasonal Forecasting  

Science Conference Proceedings (OSTI)

The limited numbers of start dates and ensemble sizes in seasonal forecasts lead to sampling errors in predictions. Defining the magnitude of these sampling errors would be useful for end users as well as informing decisions on resource ...

Stephen Cusack; Alberto Arribas

2009-03-01T23:59:59.000Z

2

Sampling Errors in Rawinsonde-Array Budgets  

Science Conference Proceedings (OSTI)

Rawinsonde data used for sounding-array budget computations have random errors, both instrumental errors and errors of representativeness (here called sampling errors). The latter are associated with the fact that radiosondes do not measure large-...

Brian E. Mapes; Paul E. Ciesielski; Richard H. Johnson

2003-11-01T23:59:59.000Z

3

Annotating language errors in texts: investigating argumentation and decision schemas  

Science Conference Proceedings (OSTI)

In this short paper, we present annotations for tagging grammatical and stylistic errors, together with attributes about the nature of the correction which are then interpreted as arguments. A decision model is introduced in order for the author to be ...

Camille Albert; Laurie Buscail; Marie Garnier; Arnaud Rykner; Patrick Saint-Dizier

2009-08-01T23:59:59.000Z

4

Flux Sampling Errors for Aircraft and Towers  

Science Conference Proceedings (OSTI)

Various errors and influences leading to differences between tower- and aircraft-measured fluxes are surveyed. This survey is motivated by reports in the literature that aircraft fluxes are sometimes smaller than tower-measured fluxes. Both tower ...

L. Mahrt

1998-04-01T23:59:59.000Z

5

Estimating Sampling Errors in Large-Scale Temperature Averages  

Science Conference Proceedings (OSTI)

A method is developed for estimating the uncertainty (standard error) of observed regional, hemispheric, and global-mean surface temperature series due to incomplete spatial sampling. Standard errors estimated at the grid-box level [SE2 = S2(1 ? ...

P. D. Jones; T. J. Osborn; K. R. Briffa

1997-10-01T23:59:59.000Z

6

Sampling Errors in Flux Measurements of Slowly Depositing Pollutants  

Science Conference Proceedings (OSTI)

Sampling errors in vertical flux measurements obtained by eddy correlation methods are investigated by specifying a jointly normal–lognormal density distribution for the vertical velocity and scalar concentration. The probability density function ...

Edward E. O'Brien

1985-07-01T23:59:59.000Z

7

Supplemental Text Analysis of the ice core samples  

E-Print Network (OSTI)

into a continuous sequence of samples (NIF2, 2197 samples; NIF3, 1980 samples; SIF1, 706 samples; SIF2, 834 samples and the sixth core, NIF1 (drilled one meter from NIF2) has been reserved for other measurements such as AMS 14 C. These comments follow the dating discussion in chronological order. The net down wasting of the NIF (as discussed

Massachusetts at Amherst, University of

8

Effect of Observational Sampling Error on the Detection of Anthropogenic Climate Change  

Science Conference Proceedings (OSTI)

The effect of sampling error in surface air temperature observations is assessed for detection and attribution of an anthropogenic signal. This error arises because grid-box values are based on varying densities of station and marine data. An ...

Gabriele C. Hegerl; Philip D. Jones; Tim P. Barnett

2001-01-01T23:59:59.000Z

9

Error Analysis of Heat Transfer for Finned-Tube Heat-Exchanger Text-Board  

E-Print Network (OSTI)

In order to reduce the measurement error of heat transfer in water and air side for finned-tube heat-exchanger as little as possible, and design a heat-exchanger test-board measurement system economically, based on the principle of test-board system error analyses and design, the equation of measurement error of heat transfer in air side and water side about orifice meter for the finned-tube heat-exchanger was obtained. This paper studies the major factors that may influence the largest admitted measurement error of measurement instruments for heat transfer in water and air side, and analyzes the degree that water temperature and pressure measurement influence heat transfer in water side, and the degree that wet bulb temperature difference measurement influences heat transfer in air side. Finally, this paper indicates that the key problem of reducing heat transfer in water side is water temperature measurement of the in-out pipe of heat-exchanger, and wet bulb temperature difference is a key to decrease the heat transfer in air side for finned-tube heat-exchanger. This paper gives a theoretical instruction for designing the measurement system of a finned-tube heat-exchanger test-board

Chen, Y.; Zhang, J.

2006-01-01T23:59:59.000Z

10

Localization and Sampling Error Correction in Ensemble Kalman Filter Data Assimilation  

Science Conference Proceedings (OSTI)

Ensemble Kalman filters use the sample covariance of an observation and a model state variable to update a prior estimate of the state variable. The sample covariance can be suboptimal as a result of small ensemble size, model error, model ...

Jeffrey L. Anderson

2012-07-01T23:59:59.000Z

11

Analysis of Sampling Errors for Climate Monitoring Satellites  

Science Conference Proceedings (OSTI)

Sampling retrievals of high-accuracy first-moment statistics constitute a central concern for climate research. Considered here is the important case of brightness temperature retrievals from a selection of possible orbits. Three-hourly global ...

Daniel B. Kirk-Davidoff; Richard M. Goody; James G. Anderson

2005-03-01T23:59:59.000Z

12

Sampling Errors in Rainfall Estimates by Multiple Satellites  

Science Conference Proceedings (OSTI)

This paper examines the sampling characteristics of combining data collected by several low-orbiting satellites attempting to estimate the space?time average of rain rates. The several satellites can have different orbital and swath-width ...

Gerald R. North; Samuel S. P. Shen; Robert Upson

1993-02-01T23:59:59.000Z

13

Error Analysis and Sampling Strategy Design for Using Fixed or Mobile Platforms to Estimate Ocean Flux  

Science Conference Proceedings (OSTI)

For estimating lateral flux in the ocean using fixed or mobile platforms, the authors present a method of analyzing the estimation error and designing the sampling strategy. When an array of moorings is used, spatial aliasing leads to an error in ...

Yanwu Zhang; James G. Bellingham; Yi Chao

2010-03-01T23:59:59.000Z

14

An Estimate of the Sampling Error Variance of the Gridded GHCN Monthly Surface Air Temperature Data  

Science Conference Proceedings (OSTI)

The sampling error variances of the 5° × 5° Global Historical Climatological Network (GHCN) monthly surface air temperature data are estimated from January 1851 to December 2001. For each GHCN grid box and for each month in the above time ...

S. S. P. Shen; H. Yin; T. M. Smith

2007-05-01T23:59:59.000Z

15

Errors of Five-Day Mean Surface Wind and Temperature Conditions due to Inadequate Sampling  

Science Conference Proceedings (OSTI)

Surface meteorological reports of wind components, wind speed, air temperature, and sea surface temperature from buoys located in equatorial and midlatitude regions are used in a simulation of random sampling to determine errors of the calculated ...

David M. Legler

1991-10-01T23:59:59.000Z

16

Analysis of Cloud Variability and Sampling Errors in Surface and Satellite Mesurements  

NLE Websites -- All DOE Office Websites (Extended Search)

Analysis of Cloud Variability and Sampling Errors in Analysis of Cloud Variability and Sampling Errors in Surface and Satellite Measurements Z. Li, M. C. Cribb, and F.-L. Chang Earth System Science Interdisciplinary Center University of Maryland College Park, Maryland A. P. Trishchenko and Y. Luo Canada Centre for Remote Sensing Ottawa, Ontario, Canada Introduction Radiation measurements have been widely employed for evaluating cloud parameterization schemes and model simulation results. As the most comprehensive program aiming to improve cloud parameteri- zation schemes, the Atmospheric Radiation Measurement (ARM) Program has an essential goal to make observations on the scale of a general circulation model gridbox, so as to define the physics underlying some of the important parameterizations in the general circulation models used in climate change

17

The Impact of Altimeter Sampling Patterns on Estimates of Background Errors in a Global Wave Model  

Science Conference Proceedings (OSTI)

One of the main limitations to current wave data assimilation systems is the lack of an accurate representation of the structure of the background errors. One method that may be used to determine background errors is the observational method of ...

Diana J. M. Greenslade; Ian R. Young

2005-12-01T23:59:59.000Z

18

Approximation and error estimation in high dimensional space for stochastic collocation methods on arbitrary sparse samples  

Science Conference Proceedings (OSTI)

We have develop a fast method that can capture piecewise smooth functions in high dimensions with high order and low computational cost. This method can be used for both approximation and error estimation of stochastic simulations where the computations can either be guided or come from a legacy database.

Archibald, Richard K [ORNL; Deiterding, Ralf [ORNL; Hauck, Cory D [ORNL; Jakeman, John D [ORNL; Xiu, Dongbin [ORNL

2012-01-01T23:59:59.000Z

19

INVESTIGATION OF THE ERRORS IN SLOAN DIGITAL SKY SURVEY PROPER-MOTION MEASUREMENTS USING SAMPLES OF QUASARS  

SciTech Connect

We investigate in detail the probability distribution function (pdf) of the proper-motion measurement errors in the SDSS+USNO-B proper-motion catalog of Munn et al. using clean quasar samples. The pdf of the errors is well represented by a Gaussian core with extended wings, plus a very small fraction (<0.1%) of 'outliers'. We find that while formally the pdf could be well fit by a five-parameter fitting function, for many purposes it is also adequate to represent the pdf with a one-parameter approximation to this function. We apply this pdf to the calculation of the confidence intervals on the true proper motion for an SDSS+USNO-B proper-motion measurement, and discuss several scientific applications of the SDSS proper-motion catalog. Our results have various applications in studies of the galactic structure and stellar kinematics. Specifically, they are crucial for searching hyper-velocity stars in the Galaxy.

Dong Ruobing; Gunn, James; Knapp, Gillian [Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States); Rockosi, Constance [UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); Blanton, Michael, E-mail: rdong@astro.princeton.edu [Center for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003 (United States)

2011-10-15T23:59:59.000Z

20

Sampling Errors of SSM/I and TRMM Rainfall Averages: Comparison with Error Estimates from Surface Data and a Simple Model  

Science Conference Proceedings (OSTI)

Quantitative use of satellite-derived maps of monthly rainfall requires some measure of the accuracy of the satellite estimates. The rainfall estimate for a given map grid box is subject to both remote sensing error and, especially in the case of ...

Thomas L. Bell; Prasun K. Kundu; Christian D. Kummerow

2001-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Evaluating the Design of an Earth Radiation Budget Instrument with System Simulations. Part III: CERES-I Diurnal Sampling Error  

Science Conference Proceedings (OSTI)

Accuracy estimates for the broadband CERES-I (Clouds and Earth's Radiant Energy System Instrument) measurements of daily average radiant exitance are presented. This is a continuation of the authors’ earlier CERES sampling studies published as ...

Richard Hucek; Larry Stowe; Robert Joyce

1996-04-01T23:59:59.000Z

22

Errors of Nonobservation  

U.S. Energy Information Administration (EIA) Indexed Site

Errors of Nonobservation Errors of Nonobservation Finally, several potential sources of nonsampling error and bias result from errors of nonobservation. The 1994 MECS represents, in terms of sampling coverage, the mail frame of the 1994 ASM or 98 percent of the manufacturing universe, which is consistent with the 1991 MECS. Unit Nonresponse Even though the MECS is a legislatively mandated survey and sampled establishments are given sufficient opportunity and time to respond, nonresponse occurs in the MECS and is accounted for in a nonresponse adjustment of sampling weights. Clearly, had these adjustments not been performed, the estimates produced from only the responding establishments would not have been representative of the target universe for the MECS. Such estimates would have been biased. Adjusting the sampling weights to

23

EIA - Sorry! Unexpected Error  

Annual Energy Outlook 2012 (EIA)

Cold Fusion Error Unexpected Error Sorry An error was encountered. This error could be due to scheduled maintenance. Information about the error has been routed to the appropriate...

24

EIA - Sorry! Unexpected Error  

U.S. Energy Information Administration (EIA)

Home > Cold Fusion Error: Unexpected Error Sorry! An error was encountered. This error could be due to scheduled maintenance. Information about the error has ...

25

EIA - Sorry! Unexpected Error  

Annual Energy Outlook 2012 (EIA)

Home > Cold Fusion Error Unexpected Error Sorry An error was encountered. This error could be due to scheduled maintenance. Information about the error has been routed to the...

26

Estimation of the Impact of Sampling Errors in the VOS Observations on Air–Sea Fluxes. Part II: Impact on Trends and Interannual Variability  

Science Conference Proceedings (OSTI)

Using the same approach as in Part I, here it is shown how sampling problems in voluntary observing ship (VOS) data affect conclusions about interannual variations and secular changes of surface heat fluxes. The largest uncertainties in linear ...

Sergey Gulev; Thomas Jung; Eberhard Ruprecht

2007-01-01T23:59:59.000Z

27

Arabic Text Categorization  

E-Print Network (OSTI)

Abstract: In this paper, we compare the performance of three classifiers for Arabic text categorization. In particular, the naïve Bayes, k-nearest-neighbors (knn), and distance-based classifiers were used. Unclassified documents were preprocessed by removing punctuation marks and stopwords. Each document is then represented as a vector of words (or of words and their frequencies as in the case of the naïve Bayes classifier). Stemming was used to reduce the dimensionality of feature vectors of documents. The accuracy of the classifiers is compared using recall, precision, error rate and fallout. The results of the experimentations that were carried out on an in-house collected Arabic text show that the naïve Bayes classifier outperforms the other two.

Rehab Duwairi

2005-01-01T23:59:59.000Z

28

Estimation of the Impact of Sampling Errors in the VOS Observations on Air–Sea Fluxes. Part I: Uncertainties in Climate Means  

Science Conference Proceedings (OSTI)

Sampling uncertainties in the voluntary observing ship (VOS)-based global ocean–atmosphere flux fields were estimated using the NCEP–NCAR reanalysis and ECMWF 40-yr Re-Analysis (ERA-40) as well as seasonal forecasts without data assimilation. Air–...

Sergey Gulev; Thomas Jung; Eberhard Ruprecht

2007-01-01T23:59:59.000Z

29

Annotating language errors in texts: investigating argumentation and decision schemas  

E-Print Network (OSTI)

ways to catalogue them and to search both images and 3D mod- els. There are usually many different to be physically realistic nor work for longer than the shot. There has been considerable re- search on producing 26 February 2009. 8. Sun Microsystems LTO Ultrium tape cartridge specifications, nle

30

Systematic Tendency Error in Budget Calculations  

Science Conference Proceedings (OSTI)

Atmospheric budget calculations suffer from various observational and numerical errors. This paper demonstrates that all budget calculations applied to a large number of samples suffer from additional errors originating from systematic tendency ...

Masao Kanamitsu; Suranjana Saha

1996-06-01T23:59:59.000Z

31

Gamma Size Distribution and Stochastic Sampling Errors  

Science Conference Proceedings (OSTI)

A maximum likelihood approach to the application of the gamma size distribution is described and compared with the method of moments approach suggested by Ulbrich. Estimation of distribution parameters based on the maximum likelihood principle ...

Raymond K. W. Wong; Norman Chidambaram

1985-06-01T23:59:59.000Z

32

How to keep your head above water while detecting errors  

Science Conference Proceedings (OSTI)

Today's distributed systems need runtime error detection to catch errors arising from software bugs, hardware errors, or unexpected operating conditions. A prominent class of error detection techniques operates in a stateful manner, i.e., it keeps track ... Keywords: J2EE multi-tier systems, hidden markov model, high throughput distributed applications, intelligent sampling, stateful error detection

Ignacio Laguna; Fahad A. Arshad; David M. Grothe; Saurabh Bagchi

2009-11-01T23:59:59.000Z

33

Distortion Representation of Forecast Errors  

Science Conference Proceedings (OSTI)

Forecast error is decomposed into three components, termed displacement error, amplitude error, mid residual error, respectively. Displacement error measures how much of the forecast error can be accounted for by moving the forecast to best fit ...

Ross N. Hoffman; Zheng Liu; Jean-Francois Louis; Christopher Grassoti

1995-09-01T23:59:59.000Z

34

Solar Webinar Text Version  

Energy.gov (U.S. Department of Energy (DOE))

Download the text version of the audio from the DOE Office of Indian Energy webinar on solar renewable energy.

35

Human error contribution to nuclear materials-handling events  

E-Print Network (OSTI)

This thesis analyzes a sample of 15 fuel-handling events from the past ten years at commercial nuclear reactors with significant human error contributions in order to detail the contribution of human error to fuel-handling ...

Sutton, Bradley (Bradley Jordan)

2007-01-01T23:59:59.000Z

36

Error detection method  

DOE Patents (OSTI)

An apparatus, program product, and method that run an algorithm on a hardware based processor, generate a hardware error as a result of running the algorithm, generate an algorithm output for the algorithm, compare the algorithm output to another output for the algorithm, and detect the hardware error from the comparison. The algorithm is designed to cause the hardware based processor to heat to a degree that increases the likelihood of hardware errors to manifest, and the hardware error is observable in the algorithm output. As such, electronic components may be sufficiently heated and/or sufficiently stressed to create better conditions for generating hardware errors, and the output of the algorithm may be compared at the end of the run to detect a hardware error that occurred anywhere during the run that may otherwise not be detected by traditional methodologies (e.g., due to cooling, insufficient heat and/or stress, etc.).

Olson, Eric J.

2013-06-11T23:59:59.000Z

37

Human Error Reduction  

Science Conference Proceedings (OSTI)

Reducing human error is recognized in the power-generation industry as a key factor in reducing safety-related events as well as improving asset availability. Achieving a sustainable culture change that leads to human error reduction in plant operations and maintenance remains a significant challenge to the industry. This report presents a behavior-based approach to human performance improvement and error reduction. The report explains fundamental elements of culture change and describes proven practices...

2010-12-23T23:59:59.000Z

38

Video Signal Error Concealment  

Science Conference Proceedings (OSTI)

... the video quality in packet loss transmission environments: error ... along the direction of each detected straight line. The lines are used to divide the ...

2011-03-29T23:59:59.000Z

39

Text | Open Energy Information  

Open Energy Info (EERE)

View View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Special page Facebook icon Twitter icon » Text Jump to: navigation, search Properties of type "Text" Showing 139 properties using this type. A Property:Abstract Property:AdditionalRef Property:Available Personnel Types Property:Available Sensors B Property:BestPractices C Property:CBECSDefinition Property:Cameras Property:CaseName Property:Citation Property:CompletionNotes Property:Conference D Property:DIA/Approach Property:DIA/CaseStudies Property:DIA/Inputs Property:DIA/Outputs Property:DIA/Training Property:DOEInvolve Property:DOMproperty Property:Data Comparison to Computational Models Property:DataAcquisition Property:Definition

40

Sources of Error  

Science Conference Proceedings (OSTI)

...Sources of error in damage tolerance analysis can be classified as: Uncertainty and assumptions in data input Uncertainty due to assumptions about flaws Interpretations of, and assumptions in, stress history Inaccuracies in stress intensity Computer...

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Error driven paraphrase annotation using Mechanical Turk  

Science Conference Proceedings (OSTI)

The source text provided to a machine translation system is typically only one of many ways the input sentence could have been expressed, and alternative forms of expression can often produce a better translation. We introduce here error driven paraphrasing ...

Olivia Buzek; Philip Resnik; Benjamin B. Bederson

2010-06-01T23:59:59.000Z

42

LCC-0084 text  

NLE Websites -- All DOE Office Websites (Extended Search)

4 4 July 2002 A Comment on Machine Reliability and Availability Raymond S. Larsen Stanford Linear Accelerator Center Stanford University Menlo Park, California Abstract: There appears to be continuing confusion in the community between the terms reliability and availability. The following is a comment on the salient points, none of which are particularly new to NLC discussions of the past 2 -3 years, but which will soon require serious further study because of potential impact on overall system engineering manpower, costs and schedules. LCC-0084 LCC-0084 text 1 RSL 7/1/02 A Comment on Machine Reliability and Availability R.S. Larsen Stanford Linear Accelerator Center February 15, 2002 The just concluded LC02 discussions on machine reliability were very interesting but due

43

Concept Discovery from Text  

E-Print Network (OSTI)

WordNet are extremely useful. However, they often include many rare senses while missing domain-specific senses. We present a clustering algorithm called CBC (Clustering By Committee) that automatically discovers concepts from text. It initially discovers a set of tight clusters called committees that are well scattered in the similarity space. The centroid of the members of a committee is used as the feature vector of the cluster. We proceed by assigning elements to their most similar cluster. Evaluating cluster quality has always been a difficult task. We present a new evaluation methodology that is based on the editing distance between output clusters and classes extracted from WordNet (the answer key). Our experiments show that CBC outperforms several well-known clustering algorithms in cluster quality.

Dekang Lin; Patrick Pantel

2002-01-01T23:59:59.000Z

44

Modular error embedding  

DOE Patents (OSTI)

A method of embedding auxiliary information into the digital representation of host data containing noise in the low-order bits. The method applies to digital data representing analog signals, for example digital images. The method reduces the error introduced by other methods that replace the low-order bits with auxiliary information. By a substantially reverse process, the embedded auxiliary data can be retrieved easily by an authorized user through use of a digital key. The modular error embedding method includes a process to permute the order in which the host data values are processed. The method doubles the amount of auxiliary information that can be added to host data values, in comparison with bit-replacement methods for high bit-rate coding. The invention preserves human perception of the meaning and content of the host data, permitting the addition of auxiliary data in the amount of 50% or greater of the original host data.

Sandford, II, Maxwell T. (Los Alamos, NM); Handel, Theodore G. (Los Alamos, NM); Ettinger, J. Mark (Los Alamos, NM)

1999-01-01T23:59:59.000Z

45

Trimmed Mean Standard Error  

Science Conference Proceedings (OSTI)

... the sample size. Tukey and Mclaughlin suggest the following confidence interval for the trimmed mean: where alpha is ...

2013-11-27T23:59:59.000Z

46

Tone Dependent Color Error Diffusion  

E-Print Network (OSTI)

Conventional grayscale error di#usion halftoning produces worms and other objectionable artifacts. Tone dependent error di#usion #Li and Allebach# reduces these artifacts by controlling the di#usion of quantization errors based on the input graylevel. Li and Allebach design error #lter weights and thresholds for each #input# graylevel optimized based on a human visual system #HVS# model. This paper extends tone dependent error di#usion to color. In color error di#usion, what color to render becomes a major concern in addition to #nding optimal dot patterns. We present a visually optimum design approach for input level #tone# dependent error #lters #for each color plane#. The resulting halftones reduce traditional error di#usion artifacts and achieve greater accuracy in color rendition. 1.

Vishal Monga; Brian L. Evans

2004-01-01T23:59:59.000Z

47

Pocket Guide: Preventing Switching Errors  

Science Conference Proceedings (OSTI)

There are many conditions that are frequently identified as factors contributing to, if not directly causing, accidents and other unwanted events. These have come to be called "error-likely conditions." In 2010, the Electric Power Research Institute (EPRI) published report 1020018, Error-Likely Situations in Power Switching. That report was the first large-scale effort to fill the knowledge gap in the area of error-likely situations in power switching, and it identified over 100 potentially error-likely ...

2011-12-12T23:59:59.000Z

48

Quantum Zero-error Capacity  

E-Print Network (OSTI)

We define here a new kind of quantum channel capacity by extending the concept of zero-error capacity for a noisy quantum channel. The necessary requirement for which a quantum channel has zero-error capacity greater than zero is given. Finally, we point out some directions on how to calculate the zero-error capacity of such channels.

Rex A. C. Medeiros; Francisco M. De Assis

2006-11-08T23:59:59.000Z

49

How Do Actuaries Use Data Containing Errors?: Models of Error Detection and Error Correction  

Science Conference Proceedings (OSTI)

Information systems provide data for business processes and decision making. There is strong evidence that data items stored in organizational databases have a significant rate of errors. If undetected in use, errors in data may significantly affect ...

Barbara D. Klein

1997-10-01T23:59:59.000Z

50

Firewall Configuration Errors Revisited  

E-Print Network (OSTI)

The first quantitative evaluation of the quality of corporate firewall configurations appeared in 2004, based on Check Point FireWall-1 rule-sets. In general that survey indicated that corporate firewalls were often enforcing poorly written rule-sets, containing many mistakes. The goal of this work is to revisit the first survey. The current study is much larger. Moreover, for the first time, the study includes configurations from two major vendors. The study also introduce a novel "Firewall Complexity" (FC) measure, that applies to both types of firewalls. The findings of the current study indeed validate the 2004 study's main observations: firewalls are (still) poorly configured, and a rule-set's complexity is (still) positively correlated with the number of detected risk items. Thus we can conclude that, for well-configured firewalls, ``small is (still) beautiful''. However, unlike the 2004 study, we see no significant indication that later software versions have fewer errors (for both vendors).

Wool, Avishai

2009-01-01T23:59:59.000Z

51

A colorful approach to text processing by example  

Science Conference Proceedings (OSTI)

Text processing, tedious and error-prone even for programmers, remains one of the most alluring targets of Programming by Example. An examination of real-world text processing tasks found on help forums reveals that many such tasks, beyond simple string ... Keywords: programming by example, text processing

Kuat Yessenov, Shubham Tulsiani, Aditya Menon, Robert C. Miller, Sumit Gulwani, Butler Lampson, Adam Kalai

2013-10-01T23:59:59.000Z

52

Quantum error control codes  

E-Print Network (OSTI)

It is conjectured that quantum computers are able to solve certain problems more quickly than any deterministic or probabilistic computer. For instance, Shor's algorithm is able to factor large integers in polynomial time on a quantum computer. A quantum computer exploits the rules of quantum mechanics to speed up computations. However, it is a formidable task to build a quantum computer, since the quantum mechanical systems storing the information unavoidably interact with their environment. Therefore, one has to mitigate the resulting noise and decoherence effects to avoid computational errors. In this dissertation, I study various aspects of quantum error control codes - the key component of fault-tolerant quantum information processing. I present the fundamental theory and necessary background of quantum codes and construct many families of quantum block and convolutional codes over finite fields, in addition to families of subsystem codes. This dissertation is organized into three parts: Quantum Block Codes. After introducing the theory of quantum block codes, I establish conditions when BCH codes are self-orthogonal (or dual-containing) with respect to Euclidean and Hermitian inner products. In particular, I derive two families of nonbinary quantum BCH codes using the stabilizer formalism. I study duadic codes and establish the existence of families of degenerate quantum codes, as well as families of quantum codes derived from projective geometries. Subsystem Codes. Subsystem codes form a new class of quantum codes in which the underlying classical codes do not need to be self-orthogonal. I give an introduction to subsystem codes and present several methods for subsystem code constructions. I derive families of subsystem codes from classical BCH and RS codes and establish a family of optimal MDS subsystem codes. I establish propagation rules of subsystem codes and construct tables of upper and lower bounds on subsystem code parameters. Quantum Convolutional Codes. Quantum convolutional codes are particularly well-suited for communication applications. I develop the theory of quantum convolutional codes and give families of quantum convolutional codes based on RS codes. Furthermore, I establish a bound on the code parameters of quantum convolutional codes - the generalized Singleton bound. I develop a general framework for deriving convolutional codes from block codes and use it to derive families of non-catastrophic quantum convolutional codes from BCH codes. The dissertation concludes with a discussion of some open problems.

Abdelhamid Awad Aly Ahmed, Sala

2008-05-01T23:59:59.000Z

53

ATLAS Self-Siphoning Rain Gauge Error Estimates  

Science Conference Proceedings (OSTI)

This report describes sampling and error characteristics of self-siphoning rain gauges used on moored buoys designed and assembled at NOAA's Pacific Marine Environmental Laboratory (PMEL) for deployment in the tropical Pacific and Atlantic Oceans ...

Yolande L. Serra; Patrick A'Hearn; H. Paul Freitag; Michael J. McPhaden

2001-12-01T23:59:59.000Z

54

Error Statistics of VPR Corrections in Stratiform Precipitation  

Science Conference Proceedings (OSTI)

Errors in surface rainfall estimates that are caused by ignoring the vertical profile of reflectivity (VPR) and range effects have been assessed by simulating how fine-resolution 3D reflectivity measurements at close ranges are sampled by the ...

Aldo Bellon; Gyu Won Lee; Isztar Zawadzki

2005-07-01T23:59:59.000Z

55

Human Error in Airway Facilities  

E-Print Network (OSTI)

This report examines human errors in Airway Facilities (AF) with the intent of preventing these errors from being passed on to the new Operations Control Centers. To effectively manage errors, they first have to be identified. Human factors engineers researched human error literature, analyzed human errors recorded in AF databases, and conducted structured interviews with AF representatives. This study enabled them to categorize the types of human errors, identify potential causal factors, and recommend strategies for their mitigation. The results provide preventative measures that designers, developers, and users can take to reduce human error. 17. Key Words Human Error Error Mitigation Operations Control Centers Error Mitigation Strategies 18. Distribution Statement This document is available to the public through the National Technical Information Service, Springfield, Virginia, 22161. 19. Security Classif. (of this report) 20. Security Classif. (of this page) 21. No. of Pages 23 22. Price Form DOT F 1700.7 (8-72) Reproduction of completed page authorized iii ACKNOWLEDGMENTS This research was accomplished under the sponsorship of the Office of Chief Scientist for Human Factors, AAR-100. The research team greatly appreciates the support supplied by Beverly Clark of AOP-30 and our subject matter expert, Kermit Grayson of Grayson Consulting. We also wish to extend our thanks to the people interviewed at the facilities who gave their valuable time in helping us to achieve the goals of our project. iv v Table of Contents Page Acknowledgments..........................................................................................................................iii Executive Summary......................................................................................

Vicki Ahlstrom; Vicki Ahlstrom Act; Donald G. Hartman

2001-01-01T23:59:59.000Z

56

Nebular Abundance Errors  

E-Print Network (OSTI)

The errors inherent to the use of the standard "ionization correction factor" ("i_CF") method of calculating nebular conditions and relative abundances of H, He, N, O, Ne, S, and Ar in emission line nebulae have been investigated under conditions typical for planetary nebulae. The photoionization code CLOUDY was used to construct a series of model nebulae with properties spanning the range typical of PNe. Its radial "profiles" of bright, frequently observed optical emission lines were then summed over a variety of "apertures" to generate sets of emission line measurements. These resulting line ratios were processed using the i_CF method to "derive" nebular conditions and abundances. We find that for lines which are summed over the entire nebula the i_CF-derived abundances differ from the input abundances by less than 5% for He and O up to 25% or more for Ne, S, and Ar. For resolved observations, however, the discrepancies are often much larger and are systematically variable with radius. This effect is especially pronounced in low-ionization zones where nitrogen and oxygen are neutral or once-ionized such as in FLIERs, ansae and ionization fronts. We argue that the reports of stellar-enriched N in the FLIERs of several PNe are probably specious.

J. Alexander; B. Balick

1997-04-30T23:59:59.000Z

57

Automatic correction of grammatical errors in non-native English text  

E-Print Network (OSTI)

Learning a foreign language requires much practice outside of the classroom. Computer-assisted language learning systems can help fill this need, and one desirable capability of such systems is the automatic correction of ...

Lee, John Sie Yuen, 1977-

2009-01-01T23:59:59.000Z

58

Text analysis devices, articles of manufacture, and text analysis methods  

DOE Patents (OSTI)

Text analysis devices, articles of manufacture, and text analysis methods are described according to some aspects. In one aspect, a text analysis device includes processing circuitry configured to analyze initial text to generate a measurement basis usable in analysis of subsequent text, wherein the measurement basis comprises a plurality of measurement features from the initial text, a plurality of dimension anchors from the initial text and a plurality of associations of the measurement features with the dimension anchors, and wherein the processing circuitry is configured to access a viewpoint indicative of a perspective of interest of a user with respect to the analysis of the subsequent text, and wherein the processing circuitry is configured to use the viewpoint to generate the measurement basis.

Turner, Alan E; Hetzler, Elizabeth G; Nakamura, Grant C

2013-05-28T23:59:59.000Z

59

Mitigating sampling error when measuring internet client IPv6 capabilities  

Science Conference Proceedings (OSTI)

Despite the predicted exhaustion of unallocated IPv4 addresses between 2012 and 2014, it remains unclear how many current clients can use its successor, IPv6, to access the Internet. We propose a refinement of previous measurement studies that mitigates ... Keywords: banner-ad-based measurement, ipv6 deployment

Sebastian Zander; Lachlan L.H. Andrew; Grenville Armitage; Geoff Huston; George Michaelson

2012-11-01T23:59:59.000Z

60

Browse Error - Energy Innovation Portal  

Share Browse Error - Energy Innovation Portal on Facebook; ... Contacts | Web Site Policies | U.S. Department of Energy | USA.gov Content Last ...

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Standards and Related Texts Reference  

E-Print Network (OSTI)

A list of existing Codex standards and related texts whose revocation is recommended is presented below. The Commission is invited to confirm the revocation of existing Codex standards and related texts, as recommended by Codex Committees.

Th Session

2011-01-01T23:59:59.000Z

62

Text structure-aware classification  

E-Print Network (OSTI)

Bag-of-words representations are used in many NLP applications, such as text classification and sentiment analysis. These representations ignore relations across different sentences in a text and disregard the underlying ...

Dzunic, Zoran, S.M. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

63

Exploiting Hierarchy in Text Categorization  

Science Conference Proceedings (OSTI)

With the recent dramatic increase in electronic access to documents, text categorization—the task of assigning topics to a given document—has moved to the center of the information sciences and knowledge management. This article uses the ... Keywords: hierarchical models, information retrieval, knowledge management, machine learning, neural networks, performance evaluation, probabilistic models, problem decomposition, text categorization, text mining, topic spotting

Andreas S. Weigend; Erik D. Wiener; Jan O. Pedersen

1999-10-01T23:59:59.000Z

64

ParaText : scalable text modeling and analysis.  

Science Conference Proceedings (OSTI)

Automated processing, modeling, and analysis of unstructured text (news documents, web content, journal articles, etc.) is a key task in many data analysis and decision making applications. As data sizes grow, scalability is essential for deep analysis. In many cases, documents are modeled as term or feature vectors and latent semantic analysis (LSA) is used to model latent, or hidden, relationships between documents and terms appearing in those documents. LSA supplies conceptual organization and analysis of document collections by modeling high-dimension feature vectors in many fewer dimensions. While past work on the scalability of LSA modeling has focused on the SVD, the goal of our work is to investigate the use of distributed memory architectures for the entire text analysis process, from data ingestion to semantic modeling and analysis. ParaText is a set of software components for distributed processing, modeling, and analysis of unstructured text. The ParaText source code is available under a BSD license, as an integral part of the Titan toolkit. ParaText components are chained-together into data-parallel pipelines that are replicated across processes on distributed-memory architectures. Individual components can be replaced or rewired to explore different computational strategies and implement new functionality. ParaText functionality can be embedded in applications on any platform using the native C++ API, Python, or Java. The ParaText MPI Process provides a 'generic' text analysis pipeline in a command-line executable that can be used for many serial and parallel analysis tasks. ParaText can also be deployed as a web service accessible via a RESTful (HTTP) API. In the web service configuration, any client can access the functionality provided by ParaText using commodity protocols ... from standard web browsers to custom clients written in any language.

Dunlavy, Daniel M.; Stanton, Eric T.; Shead, Timothy M.

2010-06-01T23:59:59.000Z

65

Architecture Design for Soft Errors  

Science Conference Proceedings (OSTI)

This book provides a comprehensive description of the architetural techniques to tackle the soft error problem. It covers the new methodologies for quantitative analysis of soft errors as well as novel, cost-effective architectural techniques to mitigate ... Keywords: Computer Architecture, Computer Engineering, Microprocessors

Shubu Mukherjee

2008-02-01T23:59:59.000Z

66

Text segmentation by clustering cohesion  

Science Conference Proceedings (OSTI)

An automatic linear text segmentation in order to detect the best topic boundaries is a difficult and very useful task in many text processing systems. Some methods have tried to solve this problem with reasonable results, but they present some drawbacks ...

Raúl Abella Pérez; José Eladio Medina Pagola

2010-11-01T23:59:59.000Z

67

text | OpenEI Community  

Open Energy Info (EERE)

text text Home Dc's picture Submitted by Dc(10) Member 17 September, 2013 - 12:39 Are you willing to reply to a text message once a day with information about your comfort level at your indoor location? building comfort design improve incentive indoor message sms text Yes 50% (2 votes) No 0% (0 votes) Maybe if I had an incentive 25% (1 vote) Maybe if my reply is confidential and anonymous 0% (0 votes) Maybe if the data will be used to improve building design 25% (1 vote) Total votes: 4 Buildings account for roughly 40% of all U.S. energy use (70% of all electricity): residential buildings account for 22% of all U.S. energy use and commercial buildings account for 18% of all U.S. energy use[i]. There is an unanswered need for information about buildings in use and how building design affects building occupant comfort, productivity, and, by

68

The Geometry of Model Error  

Science Conference Proceedings (OSTI)

This paper investigates the nature of model error in complex deterministic nonlinear systems such as weather forecasting models. Forecasting systems incorporate two components, a forecast model and a data assimilation method. The latter projects ...

Kevin Judd; Carolyn A. Reynolds; Thomas E. Rosmond; Leonard A. Smith

2008-06-01T23:59:59.000Z

69

BioText Search Engine  

Science Conference Proceedings (OSTI)

Summary: The BioText Search Engine is a freely available Web-based application that provides biologists with new ways to access the scientific literature. One novel feature is the ability to search and browse article figures and their captions. ...

Marti A. Hearst; Anna Divoli; Harendra Guturu; Alex Ksikes; Preslav Nakov; Michael A. Wooldridge; Jerry Ye

2007-08-01T23:59:59.000Z

70

Human Errors in Information Security  

E-Print Network (OSTI)

The purpose of the paper is to target audience and stakeholder individuals whom are in charge of securing the assets of their organisations and institutions. This paper starts by providing a brief overview of information security, outlining the main goals and techniques of the discipline. The paper also discusses the role of human factors and how the information security research community has recognised the increasingly crucial role of human behaviour in many security failures. This is followed by a literature review of human errors in information security. Finally, this paper discusses Reason's Generic Error Modelling System (GEMS) as a potential model for explaining human errors in information security [18]. The terms computer security, network security and information security are used interchangeably in this paper.

Munir Ahmed; Lukman Sharif; Muhammad Kabir; Maha Al-maimani

2012-01-01T23:59:59.000Z

71

Human Errors: Disadvantages and Advantages  

E-Print Network (OSTI)

The traditional paradigm for learning and training of operators in complex systems is discussed and criticised to react on the strong influence (the doctrine of 'mental logic') coming from research carried out in artificial intelligence (AI). The most well known arguments against the AI-approach are presented and discussed in relation to expertise, intuition and implicit knowledge. The importance of faults and errors are discussed in the context of a new metaphor for cognitive structures to describe expertise, and how knowledge about unsuccessful behavior influences the actual decision making process of experts. Keywords: human error, meta learning, mental model, experience, expertise 1. INTRODUCTION Why is this type of statements "I learned more from my defeats than from my victories" (Napoleon, ca. 1819) sometimes (or always) true? To answer this question we need a new understanding of human errors, inefficient behavior, and expertise. In this paper we will discuss the importance of...

Matthias Rauterberg; Daniel Felix

1996-01-01T23:59:59.000Z

72

Error-correcting codes and cryptography  

Science Conference Proceedings (OSTI)

Oct 20, 2006 ... topics where error-correcting codes overlap with cryptography. In some of these ..... human errors, e.g., misconfigurations or bugs. If biological ...

73

Definition: Time Error | Open Energy Information  

Open Energy Info (EERE)

of Frequency Error over a given period.1 Related Terms Interconnection, sustainability, frequency error, smart grid References Glossary of Terms Used in Reliability...

74

Statistical Error Decomposition of Regional-Scale Climatological Precipitation Estimates from the Tropical Rainfall Measuring Mission (TRMM)  

Science Conference Proceedings (OSTI)

Monthly rainfall estimates inferred from the NASA Tropical Rainfall Measuring Mission (TRMM) satellite contain errors due to discrete temporal sampling and remote spaceborne rain retrievals. This paper develops a regional-scale error model that ...

Brad L. Fisher

2007-06-01T23:59:59.000Z

75

Machine Translation Errors: English and Iraqi Arabic  

Science Conference Proceedings (OSTI)

Errors in machine translations of English-Iraqi Arabic dialogues were analyzed using the methods developed for the Human Translation Error Rate measure (HTER). Human annotations were used to refine the Translation Error Rate (TER) annotations. The analyses ... Keywords: Arabic, English, error analysis, evaluation, statistical machine translation

S. Condon; D. Parvaz; J. Aberdeen; C. Doran; A. Freeman; M. Awad

2011-03-01T23:59:59.000Z

76

Heading Error Removal System for Tracking Devices - Energy ...  

Systems are able to reduce or remove slowly-varying drift errors, such as heading errors, rate of rotation errors, and direction of travel errors, to correct the ...

77

Error Exponent Region for Gaussian  

E-Print Network (OSTI)

Introduction We introduce the notion of error exponent region (EER) for a multi-user channel. This region specifies the set of errorexponent vectors, which are simultaneously achievable by all users in the multi-user channel [1]. In this work, we derive an inner bound (achievable region) and an outer bound for the error exponent region of a Gaussian multiple access channel (GMAC). II. Formulation and Main Result An error exponent region for a multi-user channel depends on the channel operating (rate) point. For a two-user channel, we use the notation EER(R1 , R2 ) to denote the EER when the channel is operated at rate pair (R1 , R2 ). Consider a GMAC Y = X1 +X2 + Z, (1) where X1 and X2 are the channel inputs for user 1 and user 2 with E(X 1 ) = SNR1 , E(X 2 ) = SNR2 , and Z is white Gaussian noise with unit variance. Denote E(R,SNR) the maximum of random coding exponent and expurgated exponent of a single-user Gaussian channel. Our main result follow. Theorem 1: For a two-user GM

Multiple Access Channels; Lihua Weng; Achilleas Anastasopoulos; Eep Pradhan

2004-01-01T23:59:59.000Z

78

?·?****?à*8__PAGEZERO****?__TEXT* p p ...  

Science Conference Proceedings (OSTI)

??·?***à*8__PAGEZERO****?__TEXT* p p***__text__TEXT$É*I?*É*Ç* __picsymbol_stub__TEXT*nÇDá*^Ç*Ç*$__symbol_stub__TEXT ...

2005-06-08T23:59:59.000Z

79

Generalized Error Analysis for Conventional and Remote Reference Magnetotellurics  

DOE Green Energy (OSTI)

An error analysis which applies to both conventional and remote reference magnetotelluric impedance and tipper estimates is developed based on the assumption that noise in the field measurements is governed by a complex normal distribution. Under the assumed model of noise it is shown that the theoretical expressions for the variances and covariances derived recently by Gamble et al (1979b) specifically for remote reference estimates apply to conventional estimates as well. However, calculations are biased if the impedance or tipper functions are biased. The impedance and tipper functions are calculated as ratios of two random functions of noisy field measurements. The expressions for the variances and covariances account for noise in both the numerator and denominator of the estimates. They are useful provided the probability that the magnitude of the random error in the denominator exceeds the magnitude of its expected value is small. Expressions for the bias errors of the impedance and tipper functions are obtained in order to assess the relative contributions of random and bias errors to the man squared error of the estimates. The relative magnitude of both random and bias errors depends on the noise level and on the values of the sample coherencies between various pairs of the field measurements used to compute a particular estimate.

Stodt, John A.

1982-11-01T23:59:59.000Z

80

Sampling – Soil  

INL has developed a method for sampling soil to determine the presence of extremely fine particles such as absorbents.

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Incorporating Misclassification Error in Skill Assessment  

Science Conference Proceedings (OSTI)

It is desirable to account for misclassification error of meteorological observations so that the true skill of the forecast can be assessed. Errors in observations can occur, among other places, in pilot reports of icing and in tornado spotting. ...

William Briggs; Matt Pocernich; David Ruppert

2005-11-01T23:59:59.000Z

82

Sources of Error in Objective Analysis  

Science Conference Proceedings (OSTI)

The errors in objective analysis methods that are based on corrections to first-guess fields are considered. An expression that gives a decomposition of an error into three independent components is derived. To test the magnitudes of the ...

Richard Franke

1985-02-01T23:59:59.000Z

83

Review of Radiosonde Humidity and Temperature Errors  

Science Conference Proceedings (OSTI)

An attempt is made to provide a brief but comprehensive summary of sources of error in National Weather Service upper air data, and a guide to the relevant literature. Error analysis must be tailored for particular applications. Temperature ...

Robert W. Pratt

1985-09-01T23:59:59.000Z

84

Session Cookie Error, Brookhaven National Laboratory (BNL)  

NLE Websites -- All DOE Office Websites (Extended Search)

Session Cookie Error Session Cookie Error We're Sorry, either you don't have Session Cookies enabled in your browser or your session has expired. Some functions in this site will not work properly without it enabled. Please enable session cookies, then go back and try again or close and re-open your browser to view these web pages correctly. What is a Cookie? What are Cookies used for? What are Persistent Cookies? What are Session Cookies? How can I control or enable which Cookies I want to accept? Need help? What is a Cookie? A "cookie" is a small piece of information that is sent by a web server to be stored on a web browser, so that it can later be read back from that browser the next time this unique visitor returns to that web server. This becomes useful for having the browser remember specific information about this visitor like location of their last visit, time spent, or user preferences (like style sheets). The cookie is a text file that is saved in the browser's directory and is stored in RAM while the browser is running. Also, the cookie may be stored on the computer's hard drive once you log off from that web site or web server.

85

Doppler Radar Sampling Limitations in Convective Storms  

Science Conference Proceedings (OSTI)

Vertical air motion data from a T-28 aircraft were filtered and sampled to simulate Doppler radar measurements. The results suggest that multiple Doppler radar analyses are subject to potentially large spatial aliasing errors in deep convection ...

R. E. Carbone; M. J. Carpenter; C. D. Burghart

1985-09-01T23:59:59.000Z

86

Anthrax Sampling  

NLE Websites -- All DOE Office Websites (Extended Search)

Anthrax Anthrax Sampling and Decontamination: Technology Trade-Offs Phillip N. Price, Kristina Hamachi, Jennifer McWilliams, and Michael D. Sohn Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley CA 94720 September 12, 2008 This work was supported by the Office of Science, Office of High Energy Physics, Homeland Security under the U.S. Department of Energy under Contract No. DE-AC02-05CH1123. Contents 1 Executive Summary 3 1.1 How much sampling is needed to decide if a building is safe? . . . . . . . 3 1.1.1 Sampling Nomogram . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 How many characterization samples should be taken? . . . . . . . . . . . 7 1.3 What decontamination method should be used? . . . . . . . . . . . . . . . 7 1.4 Post-decontamination sampling . . . . . . . . . . . . . . . . . . . . . . . . 8 1.5 What are rules of thumb for cost and effort? . . . . . . . . . . . .

87

Wind Webinar Text Version | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Text Version Wind Webinar Text Version Download the text version of the audio from the DOE Office of Indian Energy webinar on wind renewable energy. Text Version of the DOE Office...

88

Estimation of Gamma Raindrop Size Distribution Parameters: Statistical Fluctuations and Estimation Errors  

Science Conference Proceedings (OSTI)

The gamma distribution is often used to characterize raindrop size distributions (DSDs). However, the estimation of measured raindrop distributions suffers from the shortcomings of statistical sampling errors, which become increasingly ...

Cécile Mallet; Laurent Barthes

2009-08-01T23:59:59.000Z

89

ITOUGH2 sample problems  

DOE Green Energy (OSTI)

This report contains a collection of ITOUGH2 sample problems. It complements the ITOUGH2 User`s Guide [Finsterle, 1997a], and the ITOUGH2 Command Reference [Finsterle, 1997b]. ITOUGH2 is a program for parameter estimation, sensitivity analysis, and uncertainty propagation analysis. It is based on the TOUGH2 simulator for non-isothermal multiphase flow in fractured and porous media [Preuss, 1987, 1991a]. The report ITOUGH2 User`s Guide [Finsterle, 1997a] describes the inverse modeling framework and provides the theoretical background. The report ITOUGH2 Command Reference [Finsterle, 1997b] contains the syntax of all ITOUGH2 commands. This report describes a variety of sample problems solved by ITOUGH2. Table 1.1 contains a short description of the seven sample problems discussed in this report. The TOUGH2 equation-of-state (EOS) module that needs to be linked to ITOUGH2 is also indicated. Each sample problem focuses on a few selected issues shown in Table 1.2. ITOUGH2 input features and the usage of program options are described. Furthermore, interpretations of selected inverse modeling results are given. Problem 1 is a multipart tutorial, describing basic ITOUGH2 input files for the main ITOUGH2 application modes; no interpretation of results is given. Problem 2 focuses on non-uniqueness, residual analysis, and correlation structure. Problem 3 illustrates a variety of parameter and observation types, and describes parameter selection strategies. Problem 4 compares the performance of minimization algorithms and discusses model identification. Problem 5 explains how to set up a combined inversion of steady-state and transient data. Problem 6 provides a detailed residual and error analysis. Finally, Problem 7 illustrates how the estimation of model-related parameters may help compensate for errors in that model.

Finsterle, S.

1997-11-01T23:59:59.000Z

90

Sampling box  

DOE Patents (OSTI)

An air sampling box that uses a slidable filter tray and a removable filter cartridge to allow for the easy replacement of a filter which catches radioactive particles is disclosed.

Phillips, Terrance D. (617 Chestnut Ct., Aiken, SC 29803); Johnson, Craig (100 Midland Rd., Oak Ridge, TN 37831-0895)

2000-01-01T23:59:59.000Z

91

[an error occurred while processing this directive  

Science Conference Proceedings (OSTI)

[an error occurred while processing this directive] ... Thus, many systems administrators do not regularly update non ... works well but it does not protect ...

92

[an error occurred while processing this directive  

Science Conference Proceedings (OSTI)

[an error occurred while processing this directive] These are ... of commercial products within NIST web pages is for information only; it does not imply ...

93

Biomass Webinar Text Version | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Text Version Biomass Webinar Text Version Dowload the text version of the audio from the DOE Office of Indian Energy webinar on biomass. DOE Office of Indian Energy Foundational...

94

Biomass Webinar Text Version | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Biomass Webinar Text Version Biomass Webinar Text Version Dowload the text version of the audio from the DOE Office of Indian Energy webinar on biomass. DOE Office of Indian Energy...

95

Differentiating data- and text-mining terminology  

Science Conference Proceedings (OSTI)

When a new discipline emerges it usually takes some time and lots of academic discussion before concepts and terms get standardised. Such a new discipline is text mining. In a groundbreaking paper, Untangling text data mining, ... Keywords: IR, KDD, TDM, algorithms, database queries, documentation, full-text retrieval, information retrieval, knowledge creation, knowledge discovery, knowledge management, languages, measurement, metadata, text data mining, text mining, text-mining, theory

Jan H. Kroeze; Machdel C. Matthee; Theo J. D. Bothma

2003-09-01T23:59:59.000Z

96

Error suppression and error correction in adiabatic quantum computation I: techniques and challenges  

E-Print Network (OSTI)

Adiabatic quantum computation (AQC) is known to possess some intrinsic robustness, though it is likely that some form of error correction will be necessary for large scale computations. Error handling routines developed for circuit-model quantum computation do not transfer easily to the AQC model since these routines typically require high-quality quantum gates, a resource not generally allowed in AQC. There are two main techniques known to suppress errors during an AQC implementation: energy gap protection and dynamical decoupling. Here we show that both these methods are intimately related and can be analyzed within the same formalism. We analyze the effectiveness of such error suppression techniques and identify critical constraints on the performance of error suppression in AQC, suggesting that error suppression by itself is insufficient for large-scale, fault-tolerant AQC and that a form of error correction is needed. We discuss progress towards implementing error correction in AQC and enumerate several key outstanding problems. This work is a companion paper to "Error suppression and error correction in adiabatic quantum computation II: non-equilibrium dynamics"', which provides a dynamical model perspective on the techniques and limitations of error suppression and error correction in AQC. In this paper we discuss the same results within a quantum information framework, permitting an intuitive discussion of error suppression and correction in encoded AQC.

Kevin C. Young; Mohan Sarovar; Robin Blume-Kohout

2013-07-22T23:59:59.000Z

97

Verification of unfold error estimates in the unfold operator code  

SciTech Connect

Spectral unfolding is an inverse mathematical operation that attempts to obtain spectral source information from a set of response functions and data measurements. Several unfold algorithms have appeared over the past 30 years; among them is the unfold operator (UFO) code written at Sandia National Laboratories. In addition to an unfolded spectrum, the UFO code also estimates the unfold uncertainty (error) induced by estimated random uncertainties in the data. In UFO the unfold uncertainty is obtained from the error matrix. This built-in estimate has now been compared to error estimates obtained by running the code in a Monte Carlo fashion with prescribed data distributions (Gaussian deviates). In the test problem studied, data were simulated from an arbitrarily chosen blackbody spectrum (10 keV) and a set of overlapping response functions. The data were assumed to have an imprecision of 5{percent} (standard deviation). One hundred random data sets were generated. The built-in estimate of unfold uncertainty agreed with the Monte Carlo estimate to within the statistical resolution of this relatively small sample size (95{percent} confidence level). A possible 10{percent} bias between the two methods was unresolved. The Monte Carlo technique is also useful in underdetermined problems, for which the error matrix method does not apply. UFO has been applied to the diagnosis of low energy x rays emitted by Z-pinch and ion-beam driven hohlraums. {copyright} {ital 1997 American Institute of Physics.}

Fehl, D.L.; Biggs, F. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)] [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

1997-01-01T23:59:59.000Z

98

Text REtrieval Conference (TREC) System Description  

Science Conference Proceedings (OSTI)

Text REtrieval Conference (TREC) System Description. Organization Name: Los Alamos National Laboratory, Run ID: lanl981. ...

99

QuarkNet Workshop: Beyond Human Error  

NLE Websites -- All DOE Office Websites (Extended Search)

Human Error Human Error QuarkNet Workshop for High School Science Teachers 8:30 am to 4:00 pm, August 1 -3, 2012 at Fermi National Accelerator Laboratory This was a three-day workshop for high school science teachers. Measurement and error are key ingredients for all science applications. Both align with the Next Generation Science Standards, but many high school students struggle to understand the importance of error analysis and prevention. Over the three days we examined multiple experiments going on at Fermilab and discussed the ways that scientists take measurements and reduce error on these projects. Participants met and worked with scientists from Fermilab and University of Chicago to look at how error analysis takes place at Fermilab and bridged those ideas into high school classes. Teachers discussed lesson plans available at Fermilab and their own methods of teaching error analysis. Additionally, participants heard from high school students who participated in summer research as they presented their findings and linked students' learning back to the teachers' understanding of error recognition and analysis.

100

Density estimation for data with rounding errors  

Science Conference Proceedings (OSTI)

Rounding of data is common in practice. The problem of estimating the underlying density function based on data with rounding errors is addressed. A parametric maximum likelihood estimator and a nonparametric bootstrap kernel density estimator are proposed. ... Keywords: Bootstrapping, Deconvolution density estimation, Fast Fourier transformation, Kernel density estimation, Measurement error

B. Wang, W. Wertelecki

2013-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Automatic detection of dimension errors in spreadsheets  

Science Conference Proceedings (OSTI)

We present a reasoning system for inferring dimension information in spreadsheets. This system can be used to check the consistency of spreadsheet formulas and thus is able to detect errors in spreadsheets. Our approach is based on three static analysis ... Keywords: Dimension, Error detection, Inference rule, Spreadsheet, Static analysis, Unit of measurement

Chris Chambers; Martin Erwig

2009-08-01T23:59:59.000Z

102

Wind Power Forecasting Error Distributions over Multiple Timescales (Presentation)  

DOE Green Energy (OSTI)

This presentation presents some statistical analysis of wind power forecast errors and error distributions, with examples using ERCOT data.

Hodge, B. M.; Milligan, M.

2011-07-01T23:59:59.000Z

103

Dynamics of Prediction Errors under the Combined Effect of Initial Condition and Model Errors  

Science Conference Proceedings (OSTI)

The transient evolution of prediction errors in the short to intermediate time regime is considered under the combined effect of initial condition and model errors. Some generic features are brought out and connected with intrinsic properties. ...

C. Nicolis; Rui A. P. Perdigao; S. Vannitsem

2009-03-01T23:59:59.000Z

104

Word error rates: Decomposition over POS classes and applications for error analysis  

E-Print Network (OSTI)

Evaluation and error analysis of machine translation output are important but difficult tasks. In this work, we propose a novel method for obtaining more details about actual translation errors in the generated output by introducing the decomposition of Word Error Rate (WER) and Position independent word Error Rate (PER) over different Partof-Speech (POS) classes. Furthermore, we investigate two possible aspects of the use of these decompositions for automatic error analysis: estimation of inflectional errors and distribution of missing words over POS classes. The obtained results are shown to correspond to the results of a human error analysis. The results obtained on the European Parliament Plenary Session corpus in Spanish and English give a better overview of the nature of translation errors as well as ideas of where to put efforts for possible improvements of the translation system. 1

Maja Popovi?; Hermann Ney

2007-01-01T23:59:59.000Z

105

Resilience of Hybrid Ensemble/3DVAR Analysis Schemes to Model Error and Ensemble Covariance Error  

Science Conference Proceedings (OSTI)

Previous idealized numerical experiments have shown that a straightforward augmentation of an isotropic error correlation matrix with an ensemble-based error correlation matrix yields an improved data assimilation scheme under certain conditions. ...

Brian J. Etherton; Craig H. Bishop

2004-05-01T23:59:59.000Z

106

Hopper Trouble Shooting and Error Messages  

NLE Websites -- All DOE Office Websites (Extended Search)

Trouble Shooting and Error Messages Trouble Shooting and Error Messages Trouble Shooting and Error Messages Error Messages Message or Symptom Fault Recommendation job hit wallclock time limit user or system Submit job for longer time or start job from last checkpoint and resubmit. If your job hung and produced no output contact consultants. received node failed or halted event for nid xxxx system One of the compute nodes assigned to the job failed. Resubmit the job PtlNIInit failed : PTL_NOT_REGISTERED user The executable is from an XT system (Franklin or Jaguar?) using portals. Recompile on Hopper and resubmit. error while loading shared libraries: libxxxx.so: cannot open shared object file: No such file or directory mostly user, sometimes system Make sure environment variable CRAY_ROOTFS is set to DSL, also the modules loaded when building the dynamic executable is also loaded at run time. Report to consultants if still not resolved.

107

Model-Based Sampling and Inference  

U.S. Energy Information Administration (EIA) Indexed Site

Model-Based Sampling, Inference and Imputation Model-Based Sampling, Inference and Imputation James R. Knaub, Jr., Energy Information Administration, EI-53.1 James.Knaub@eia.doe.gov Key Words: Survey statistics, Randomization, Conditionality, Random sampling, Cutoff sampling Abstract: Picking a sample through some randomization mechanism, such as random sampling within groups (stratified random sampling), or, say, sampling every fifth item (systematic random sampling), may be familiar to a lot of people. These are design-based samples. Estimates of means and totals for an entire population may be inferred from such a sample, along with estimation of the amount of error that might be expected. However, inference based on a sample and its (modeled) relationship to other data may be less familiar. If there is enough

108

TEMPEST: A Template Editor for Structured Text  

E-Print Network (OSTI)

TEMPEST is a full-screen text editor that incorporates a structural paradigm in addition to the more traditional textual paradigm provided by most editors. While the textual paradigm treats the text as a sequence of ...

Sterpe, Peter J.

1985-06-01T23:59:59.000Z

109

Assessing Energy Resources Webinar Text Version  

Energy.gov (U.S. Department of Energy (DOE))

Download the text version of the audio from the DOE Office of Indian Energy webinar on assessing energy resources.

110

Strategic Energy Planning Webinar Text Version  

Energy.gov (U.S. Department of Energy (DOE))

Download the text version of the audio from the DOE Office of Indian Energy webinar on strategic energy planning.

111

Overview of the 2010 Text Analysis Conference  

Science Conference Proceedings (OSTI)

... Text Analysis Conference Hoa Trang Dang ... needs of modern NLP systems • To increase communication among industry, academia, and ...

2011-03-18T23:59:59.000Z

112

ITL Publishes Proceedings of Text Retrieval Conference ...  

Science Conference Proceedings (OSTI)

... The Information Access Division has published the proceedings of the fifteenth annual Text REtrieval Conference, TREC 2006, as NIST Special ...

113

Learning to Author Text with textual CBR  

Science Conference Proceedings (OSTI)

Textual reuse is an integral part of textual case-based reasoning (TCBR) which deals with solving new problems by reusing previous similar problem-solving experiences documented as text. We investigate the role of text reuse for text authoring applications ...

Ibrahim Adeyanju; Nirmalie Wiratunga; Juan A. Recio-García; Robert Lothian

2010-08-01T23:59:59.000Z

114

Text segmentation: A topic modeling perspective  

Science Conference Proceedings (OSTI)

In this paper, the task of text segmentation is approached from a topic modeling perspective. We investigate the use of two unsupervised topic models, latent Dirichlet allocation (LDA) and multinomial mixture (MM), to segment a text into semantically ... Keywords: Dynamic programming, Latent Dirichlet allocation, Semantic information, Text segmentation, Topic modeling

Hemant Misra; François Yvon; Olivier Cappé; Joemon Jose

2011-07-01T23:59:59.000Z

115

Error analysis in wind turbine field testing  

DOE Green Energy (OSTI)

In wind turbine field testing, one of the most important issues is understanding and accounting for data errors. Extended dynamic testing of wind turbines requires a thorough uncertainty analysis and a regimen of quality assurance steps in order to preserve accuracy. Test objectives need to be identified to determine the accuracy requirements of any data measurement, collection, and analysis process. Frequently, the uncertainty analysis reveals that the major sources of error can be allowed for with careful calibration and signal drift tracking procedures. This paper offers a basis for the discussion and development of a repeatable and accurate process to track errors and account for them in data processing.

McNiff, B [McNiff Light Industries, Carlisle, MA (United States); Simms, D [National Renewable Energy Lab., Golden, CO (United States)

1994-08-01T23:59:59.000Z

116

Harmonic Analysis Errors in Calculating Dipole,  

NLE Websites -- All DOE Office Websites (Extended Search)

Harmonic Analysis Errors in Calculating Dipole, Harmonic Analysis Errors in Calculating Dipole, Quadrupole, and Sextupole Magnets using POISSON Ro be rt J. La ri<::::R~ i. September 10, 1985 Introduction LS-32 The computer program POISSON was used to calculate the dipole, quadru- pole, and sextupole magnets of the 6 GeV electron storage ring. A trinagular mesh must first be generated by LATTICE. The triangle size is varied over the "universe" at the discretion of the user. This note describes a series of test calculations that were made to help the user decide on the size of the mesh to reduce the harmonic field calculation errors. A conformal transfor- mation of a multipole magnet into a dipole reduces these errors. Dipole Magnet Calculations A triangular mesh used to calculate a "perfect" dipole magnet is shown in

117

Effectiveness of various error metrics in SCEPTRE.  

Science Conference Proceedings (OSTI)

The objective of this project is to investigate accuracy of error metrics in SCEPTRE and produce useful benchmarks, identify metrics that do not work well, identify metrics that do work well, and produce easy to reference results.

Olson, Aaron

2010-08-01T23:59:59.000Z

118

Spatial Error Metrics for Oceanographic Model Verification  

Science Conference Proceedings (OSTI)

A common problem with modern numerical oceanographic models is spatial displacement, including misplacement and misshapenness of ocean circulation features. Traditional error metrics, such as least squares methods, are ineffective in many such ...

Sean B. Ziegeler; James D. Dykes; Jay F. Shriver

2012-02-01T23:59:59.000Z

119

Error bounds: necessary and sufficient conditions  

E-Print Network (OSTI)

from the primal as well as from the dual space are used to characterize the error bound property .... known as conditioning rate [45]): Er f(¯x) := lim inf x??x.

120

Errors and paradoxes in quantum mechanics  

E-Print Network (OSTI)

Errors and paradoxes in quantum mechanics, entry in the Compendium of Quantum Physics: Concepts, Experiments, History and Philosophy, ed. F. Weinert, K. Hentschel, D. Greenberger and B. Falkenburg (Springer), to appear

D. Rohrlich

2007-08-28T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Data Assimilation via Error Subspace Statistical Estimation.  

Science Conference Proceedings (OSTI)

Identical twin experiments are utilized to assess and exemplify the capabilities of error subspace statistical estimation (ESSE). The experiments consists of nonlinear, primitive equation–based, idealized Middle Atlantic Bight shelfbreak front ...

P. F. J. Lermusiaux

1999-07-01T23:59:59.000Z

122

Regression Error Characteristic CurVes  

E-Print Network (OSTI)

Receiver Operating Characteristic (ROC) curves provide a powerful tool for visualizing and comparing classification results. Regression Error Characteristic (REC) curves generalize ROC curves to regression. REC curves plot the error tolerance on the xaxis versus the percentage of points predicted within the tolerance on the y-axis. The resulting curve estimates the cumulative distribution function of the error. The REC curve visually presents commonly-used statistics. The area-over-the-curve (AOC) is a biased estimate of the expected error. The R 2 value can be estimated using the ratio of the AOC for a given model to the AOC for the null model. Users can quickly assess the relative merits of many regression functions by examining the relative position of their REC curves. The shape of the curve reveals additional information that can be used to guide modeling. 1.

Jinbo Bi; Kristin P. Bennett

2003-01-01T23:59:59.000Z

123

Minimizing Errors Associated with Multiplate Radiation Shields  

Science Conference Proceedings (OSTI)

Multiplate radiation shield errors are examined using the following techniques: 1) ray tracing analysis, 2) wind tunnel experiments, 3) numerical flow simulations, and 4) field testing. The authors’ objectives are to develop guidelines for ...

Scott J. Richardson; Fred V. Brock; Steven R. Semmer; Cathy Jirak

1999-11-01T23:59:59.000Z

124

Diagnosing Forecast Errors in Tropical Cyclone Motion  

Science Conference Proceedings (OSTI)

This paper reports on the development of a diagnostic approach that can be used to examine the sources of numerical model forecast error that contribute to degraded tropical cyclone (TC) motion forecasts. Tropical cyclone motion forecasts depend ...

Thomas J. Galarneau Jr.; Christopher A. Davis

2013-02-01T23:59:59.000Z

125

Panels with Nonstationary Multifactor Error Structures  

E-Print Network (OSTI)

panel regressions with multifactor error structure. This paper extends this work and examines the important case where the unobserved common factors follow unit root processes and could be cointegrated. It is found that the presence of unit roots does...

Kapetanios, George; Pesaran, M Hashem; Yamagata, Takashi

126

Short-Term Dynamics of Model Errors  

Science Conference Proceedings (OSTI)

The natural instability of the atmosphere is at the origin of the rapid amplification of errors coming from the uncertainty on the initial conditions and from the imperfect representation (the model) of the atmospheric dynamics. In this paper, ...

S. Vannitsem; Z. Toth

2002-09-01T23:59:59.000Z

127

Quantum error-correcting codes and devices  

DOE Patents (OSTI)

A method of forming quantum error-correcting codes by first forming a stabilizer for a Hilbert space. A quantum information processing device can be formed to implement such quantum codes.

Gottesman, Daniel (Los Alamos, NM)

2000-10-03T23:59:59.000Z

128

Minimizing Binding Errors Using Learned Conjunctive Features  

Science Conference Proceedings (OSTI)

We have studied some of the design trade-offs governing visual representations based on spatially invariant conjunctive feature detectors, with an emphasis on the susceptibility of such systems to false-positive recognition errors—Malsburg's classical ...

Bartlett W. Mel; József W. Fiser

2000-02-01T23:59:59.000Z

129

Minimizing Binding Errors Using Learned Conjunctive Features  

Science Conference Proceedings (OSTI)

We have studied some of the design trade-offs governing visual representations based on spatially invariant conjunctive feature detectors, with an emphasis on the susceptibility of such systems to false-positive recognition errors—Malsburg’s ...

Bartlett W. Mel; Jósef W. Fiser

2000-04-01T23:59:59.000Z

130

Assessing the Ensemble Spread-Error Relationship  

Science Conference Proceedings (OSTI)

The potential ability of an ensemble prediction system (EPS) to represent its own varying forecast error provides strong motivation to produce an EPS over a less expensive deterministic forecast. Traditionally this ability has been assessed by ...

T. M. Hopson

131

Estimation of Errors in Seasonal Cycles  

Science Conference Proceedings (OSTI)

A formula is first given for the error in a 2-harmonic seasonal curve of best fit through a set of N oceanographic data points, assuming the departures from the true mean are independent random numbers.

J. S. Godfrey; K. R. Ridgway

1985-08-01T23:59:59.000Z

132

Organizational Errors: Directions for Future Research  

E-Print Network (OSTI)

The goal of this chapter is to promote research about organizational errors—i.e., the actions of multiple organizational participants that deviate from organizationally specified rules and can potentially result in adverse ...

Carroll, John Stephen

133

Hydroelectric Webinar Presentation Slides and Text Version  

Energy.gov (U.S. Department of Energy (DOE))

Download presentation slides and a text version of the audio from the DOE Office of Indian Energy webinar on hydroelectric renewable energy. 

134

Digital Resource Center Text Topic - TMS  

Science Conference Proceedings (OSTI)

Dec 3, 2009... not allow me to meet them easily. Sincerely Ennio Curto. * Text automatically translated from Italian into English by Google -------------------------

135

Multimedia: Energy 101: Daylighting (Text Version)  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

EERE Multimedia Printable Version Share this resource Send a link to Multimedia: Energy 101: Daylighting (Text Version) to someone by E-mail Share Multimedia: Energy 101:...

136

Error matrix in quantum process tomography  

E-Print Network (OSTI)

We discuss characterization of experimental quantum gates by the error matrix, which is similar to the standard process matrix $\\chi$ in the Pauli basis, except the desired unitary operation is factored out, by formally placing it either before or after the error process. The error matrix has only one large element, which is equal to the process fidelity, while other elements are small and indicate imperfections. The imaginary parts of the elements along the left column and/or top row directly indicate the unitary imperfection and can be used to find the needed correction. We discuss a relatively simple way to calculate the error matrix for a composition of quantum gates. Similarly, it is rather straightforward to find the first-order contribution to the error matrix due to the Lindblad-form decoherence. We also discuss a way to identify and subtract the tomography procedure errors due to imperfect state preparation and measurement. In appendices we consider several simple examples of the process tomography and also discuss an intuitive physical interpretation of the Lindblad-form decoherence.

Alexander N. Korotkov

2013-09-25T23:59:59.000Z

137

Text Entry Systems: Mobility, Accessibility, Universality  

Science Conference Proceedings (OSTI)

Text entry has never been so important as it is today. This is in large part due to the phenomenal, relatively recent success of mobile computing, text messaging on mobile phones, and the proliferation of small devices like the Blackberry and Palm Pilot. ... Keywords: Human-Computer Interaction, User Interfaces

I. Scott MacKenzie; Kumiko Tanaka-Ishii

2007-03-01T23:59:59.000Z

138

Modeling and managing changes in text databases  

Science Conference Proceedings (OSTI)

Large amounts of (often valuable) information are stored in web-accessible text databases. “Metasearchers” provide unified interfaces to query multiple such databases at once. For efficiency, metasearchers rely on succinct statistical summaries ... Keywords: Metasearching, distributed information retrieval, text database selection

Panagiotis G. Ipeirotis; Alexandros Ntoulas; Junghoo Cho; Luis Gravano

2007-08-01T23:59:59.000Z

139

Subword variation in text message classification  

Science Conference Proceedings (OSTI)

For millions of people in less resourced regions of the world, text messages (SMS) provide the only regular contact with their doctor. Classifying messages by medical labels supports rapid responses to emergencies, the early identification of epidemics ...

Robert Munro; Christopher D. Manning

2010-06-01T23:59:59.000Z

140

Modeling coherence in ESOL learner texts  

Science Conference Proceedings (OSTI)

To date, few attempts have been made to develop new methods and validate existing ones for automatic evaluation of discourse coherence in the noisy domain of learner texts. We present the first systematic analysis of several methods for assessing coherence ...

Helen Yannakoudakis; Ted Briscoe

2012-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Using word sequences for text summarization  

Science Conference Proceedings (OSTI)

Traditional approaches for extractive summarization score/classify sentences based on features such as position in the text, word frequency and cue phrases These features tend to produce satisfactory summaries, but have the inconvenience of being domain ...

Esaú Villatoro-Tello; Luis Villaseñor-Pineda; Manuel Montes-y-Gómez

2006-09-01T23:59:59.000Z

142

Computer Generation of Marine Weather Forecast Text  

Science Conference Proceedings (OSTI)

MARWORDS is a natural language text generation system which has been developed to synthesize marine forecasts for the Davis Strait area in Northern Canada. It uses standard manually produced predictions of wind speed, air temperature, and other ...

E. Goldberg; R. Kittredge; A. Polguère

1988-08-01T23:59:59.000Z

143

Improved VSM for Incremental Text Classification  

Science Conference Proceedings (OSTI)

As a simple classification method VSM has been widely applied in text information processing field. There are some problems for traditional VSM to select a refined vector model representation

Zhen Yang; Jianjun Lei; Jian Wang; Xing Zhang; Jim Guo

2008-01-01T23:59:59.000Z

144

A Nonlinear Generalized Additive Error Model of Production and Cost  

E-Print Network (OSTI)

Additive Error Model of Production and Cost by Quirino ParisError Model of Production and Cost Quirino Paris* UniversityAdditive Error Model of Production and Cost I. Introduction

Paris, Quirino; Caputo, Michael R.

2004-01-01T23:59:59.000Z

145

A systems approach to reducing utility billing errors  

E-Print Network (OSTI)

Many methods for analyzing the possibility of errors are practiced by organizations who are concerned about safety and error prevention. However, in situations where the error occurrence is random and difficult to track, ...

Ogura, Nori

2013-01-01T23:59:59.000Z

146

Evolutionary Algorithm-Based Error Parameterization Methods for Data Assimilation  

Science Conference Proceedings (OSTI)

The methods of parameterizing model errors have a substantial effect on the accuracy of ensemble data assimilation. After a review of the current error-handling methods, a new blending error parameterization method was designed to combine the ...

Yulong Bai; Xin Li

2011-08-01T23:59:59.000Z

147

Explicitly Accounting for Observation Error in Categorical Verification of Forecasts  

Science Conference Proceedings (OSTI)

Given an accurate representation of errors in observations it is possible to remove the effect of those errors from categorical verification scores. The errors in the observations are treated as additive white noise that is statistically ...

Neill E. Bowler

2006-06-01T23:59:59.000Z

148

ERROR COMPENSATOR FOR A POSITION TRANSDUCER  

DOE Patents (OSTI)

A device is designed for eliminating the effect of leadscrew errors in positioning machines in which linear motion of a slide is effected from rotary motion of a leadscrew. This is accomplished by providing a corrector cam mounted on the slide, a cam follower, and a transducer housing rotatable by the follower to compensate for all the reproducible errors in the transducer signal which can be related to the slide position. The transducer has an inner part which is movable with respect to the transducer housing. The transducer inner part is coupled to the means for rotating the leadscrew such that relative movement between this part and its housing will provide an output signal proportional to the position of the slide. The corrector cam and its follower perform the compensation by changing the angular position of the transducer housing by an amount that is a function of the slide position and the error at that position. (AEC)

Fowler, A.H.

1962-06-12T23:59:59.000Z

149

Arabic texts analysis for topic modeling evaluation  

Science Conference Proceedings (OSTI)

Significant progress has been made in information retrieval covering text semantic indexing and multilingual analysis. However, developments in Arabic information retrieval did not follow the extraordinary growth of Arabic usage in the Web during the ... Keywords: Arabic stemming, Classification, Linguistic analysis, Test collections, Topic model

Abderrezak Brahmi; Ahmed Ech-Cherif; Abdelkader Benyettou

2012-02-01T23:59:59.000Z

150

Computation of term dominance in text documents  

SciTech Connect

An improved entropy-based term dominance metric useful for characterizing a corpus of text documents, and is useful for comparing the term dominance metrics of a first corpus of documents to a second corpus having a different number of documents.

Bauer, Travis L. (Albuquerque, NM); Benz, Zachary O. (Albuquerque, NM); Verzi, Stephen J. (Albuquerque, NM)

2012-04-24T23:59:59.000Z

151

Elderly text-entry performance on touchscreens  

Science Conference Proceedings (OSTI)

Touchscreen devices have become increasingly popular. Yet they lack of tactile feedback and motor stability, making it difficult effectively typing on virtual keyboards. This is even worse for elderly users and their declining motor abilities, particularly ... Keywords: elderly, mobile, tablet, text-entry, touchscreen, tremor

Hugo Nicolau; Joaquim Jorge

2012-10-01T23:59:59.000Z

152

Minimum error discrimination of Pauli channels  

E-Print Network (OSTI)

We solve the problem of discriminating with minimum error probability two given Pauli channels. We show that, differently from the case of discrimination between unitary transformations, the use of entanglement with an ancillary system can strictly improve the discrimination, and any maximally entangled state allows to achieve the optimal discrimination. We also provide a simple necessary and sufficient condition in terms of the structure of the channels for which the ultimate minimum error probability can be achieved without entanglement assistance. When such a condition is satisfied, the optimal input state is simply an eigenstate of one of the Pauli matrices.

Massimiliano F. Sacchi

2005-06-09T23:59:59.000Z

153

Laser Phase Errors in Seeded FELs  

Science Conference Proceedings (OSTI)

Harmonic seeding of free electron lasers has attracted significant attention from the promise of transform-limited pulses in the soft X-ray region. Harmonic multiplication schemes extend seeding to shorter wavelengths, but also amplify the spectral phase errors of the initial seed laser, and may degrade the pulse quality. In this paper we consider the effect of seed laser phase errors in high gain harmonic generation and echo-enabled harmonic generation. We use simulations to confirm analytical results for the case of linearly chirped seed lasers, and extend the results for arbitrary seed laser envelope and phase.

Ratner, D.; Fry, A.; Stupakov, G.; White, W.; /SLAC

2012-03-28T23:59:59.000Z

154

Underestimating Costs in Public Works Projects: Error or Lie?  

E-Print Network (OSTI)

1964). Errors in project cost estimates. Indian Eco- nomicSystematic errors in cost estimates for public investmentprojects compare in cost estimate experience? (Reprint No.

Flyvbjerg, Bent; Holm, Mette Skamris; Buhl, Søren

2006-01-01T23:59:59.000Z

155

U-058: Apache Struts Conversion Error OGNL Expression Injection...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8: Apache Struts Conversion Error OGNL Expression Injection Vulnerability U-058: Apache Struts Conversion Error OGNL Expression Injection Vulnerability December 12, 2011 - 9:00am...

156

Experts Recommend Measures to Reduce Human Error in ...  

Science Conference Proceedings (OSTI)

... 34 recommendations addressing the problems resulting from ... is understood that some human error is inevitable ... that openness about errors leads to ...

2012-02-21T23:59:59.000Z

157

GenERRate: generating errors for use in grammatical error detection  

Science Conference Proceedings (OSTI)

This paper explores the issue of automatically generated ungrammatical data and its use in error detection, with a focus on the task of classifying a sentence as grammatical or ungrammatical. We present an error generation tool called GenERRate and show ...

Jennifer Foster; Øistein E. Andersen

2009-06-01T23:59:59.000Z

158

Modeling Human Error For Experimentation, Training, And Error-Tolerant Design  

E-Print Network (OSTI)

Human error in computer systems has been blamed for many military and civilian catastrophes resulting in mission failure and loss of money and lives. However, the root cause of such failures often lies in the system’s design. A central theme in designing for human-error tolerance is to build a multi-layered defense. Creating such a robust system requires that designers effectively manage several aspects of erroneous system usage: prevention, reduction, detection, identification, recovery, and mitigation. These also correspond to discrete stages before and after error occurrence where different defensive measures can be taken. Human error models can be used to better understand these stages, the underlying cognitive mechanisms responsible for errors, and ultimately how to design systems and training to reduce the effects of inherent human limitations. This paper presents a general framework for human error recovery based on five key stages of erroneous performance: the commission of an error, its detection, identification, and correction, and resumption of the original task. These stages constitute the main components of a state model that characterizes human performance, and allows designers and trainers comprehensively address the most important aspects of error-tolerant design. Furthermore, these performance stages can be modeled computationally, to varying degrees, using standard information processing architectures. This work also demonstrates the effectiveness of a technique using GOMS models to design systems to

Scott D. Wood; David E. Kieras

2002-01-01T23:59:59.000Z

159

X-rays Illuminate Ancient Archimedes Text  

NLE Websites -- All DOE Office Websites (Extended Search)

Related Links: Related Links: May 2005 Headlines TIP Article Press Release Walters Art Museum SSRL Home Page SLAC Home Page Stanford Home Page Tuesday, 31 May 2005 X-rays Illuminate Ancient Archimedes Text (contact: Uwe Bergmann, bergmann@slac.stanford.edu) Archimedes Figure Image provided by Will Noel, The Walters Art Museum An early transcription of Archimedes' mathematical theories has been brought to light through the probing of high-intensity x-rays at SSRL's BL6-2. The text contains part of the Method of Mechanical Theorems, one of Archimedes' most important works, which was probably copied out by a scribe in the tenth century. The parchment on which it was written was later scraped down and reused as pages in a twelfth century prayer book, producing a document known as a palimpsest (which comes from the Greek,

160

Error resilient video streaming for heterogeneous networks  

Science Conference Proceedings (OSTI)

We consider the problem of video streaming for a critical private web cast, for a medium sized audience with heterogeneous nodes having different bandwidths and reliabilities. The nodes can distribute video in a peer-to-peer manner by forming a multicast ... Keywords: error resilience, multiple description coding (MDC), path diversity, video streaming

Divyashikha Sethia; Huzur Saran

2006-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Regularities and their relations to error bounds  

Science Conference Proceedings (OSTI)

In this paper, we mainly study various notions of regularity for a finite collection {C1,?,Cm} of closed convex subsets of a Banach space X and their relations with other fundamental concepts. ... Keywords: error bound, graph, linearly regular, multifunction, normal cone, positive linear functional, property (G), regular, strong CHIP, tangent cone

Kung Fu Ng; Wei Hong Yang

2004-04-01T23:59:59.000Z

162

Evaluating operating system vulnerability to memory errors  

Science Conference Proceedings (OSTI)

Reliability is of great concern to the scalability of extreme-scale systems. Of particular concern are soft errors in main memory, which are a leading cause of failures on current systems and are predicted to be the leading cause on future systems. While ... Keywords: DRAM failures, fault-tolerance, operating systems

Kurt B. Ferreira; Kevin Pedretti; Ron Brightwell; Patrick G. Bridges; David Fiala; Frank Mueller

2012-06-01T23:59:59.000Z

163

Error bounds of certain Gaussian quadrature formulae  

Science Conference Proceedings (OSTI)

We study the kernel of the remainder term of Gauss quadrature rules for analytic functions with respect to one class of Bernstein-Szego weight functions. The location on the elliptic contours where the modulus of the kernel attains its maximum value ... Keywords: Analytic function, Elliptic contour, Error bound, Gauss quadrature, Kernel, Remainder term, primary, secondary

Miodrag M. Spalevi?; Miroslav S. Prani?

2010-06-01T23:59:59.000Z

164

Explaining ML type errors by data flows  

Science Conference Proceedings (OSTI)

We present a novel approach to explaining ML type errors: Since the type system inhibits data flows that would abort the program at run-time, our type checker identifies as explanations those data flows that violate the typing rules. It also detects ...

Holger Gast

2004-09-01T23:59:59.000Z

165

Collective error detection for MPI collective operations  

Science Conference Proceedings (OSTI)

An MPI profiling library is a standard mechanism for intercepting MPI calls by applications. Profiling libraries are so named because they are commonly used to gather performance data on MPI programs. Here we present a profiling library whose purpose ... Keywords: MPI, collective, datatype, errors, hashing

Chris Falzone; Anthony Chan; Ewing Lusk; William Gropp

2005-09-01T23:59:59.000Z

166

On the role of autocorrelations in texts  

E-Print Network (OSTI)

The task of finding a criterion allowing to distinguish a text from an arbitrary set of words is rather relevant in itself, for instance, in the aspect of development of means for internet-content indexing or separating signals and noise in communication channels. The Zipf law is currently considered to be the most reliable criterion of this kind [3]. At any rate, conventional stochastic word sets do not meet this law. The present paper deals with one of possible criteria based on the determination of the degree of data compression.

Lande, D V

2007-01-01T23:59:59.000Z

167

Keyboards redux: Fast mobile text entry  

E-Print Network (OSTI)

Text entry research is in vogue again, and inventors are flocking to conferences and meetings worldwide to show their methods. What’s causing this resurgence of interest in a topic that’s been dormant for so long? WIRELESS MESSAGING In 2003, wireless messaging accounted for US$16 billion in revenue for mobile phone service providers. Some forecasters predict that between 1 and 2 trillion messages will be sent this year, and analysts say that mobile email will be the next big market for the European industry. Other markets, such as mobile gaming

Thad E. Starner; Thad Starner

2004-01-01T23:59:59.000Z

168

A Performance Evaluation of Text Analysis Technologies  

E-Print Network (OSTI)

This report describes the most recent and most sophisticated of these evaluations, the Third Message Understanding Conference (MUC-3) 1 This evaluation was sponsored by the Defense Research Projects Agency (DARPA), which plays a key role in sponsoring evaluations for other types of language interpretation systems, including performance evaluations for speech recognition carried out by the National Institute of Standards and Technology (Pallett 1990). Background and History In June 1990, a call for participation went out to research laboratories in industry and academia. The intent was to bring together established natural language processing systems for the sake of seeing how they would each handle a uniform text comprehension task. The call emphasized the importance of having a "mature" natural language processing system ready to go. The short time frame associated with MUC-3 was not amenable to extensive system construction or exploratory experimentation on a major scal

By Wendy; Wendy Lehnert; Beth Sundheim

1991-01-01T23:59:59.000Z

169

Analysis of Solar Two Heliostat Tracking Error Sources  

DOE Green Energy (OSTI)

This paper explores the geometrical errors that reduce heliostat tracking accuracy at Solar Two. The basic heliostat control architecture is described. Then, the three dominant error sources are described and their effect on heliostat tracking is visually illustrated. The strategy currently used to minimize, but not truly correct, these error sources is also shown. Finally, a novel approach to minimizing error is presented.

Jones, S.A.; Stone, K.W.

1999-01-28T23:59:59.000Z

170

Distribution of Wind Power Forecasting Errors from Operational Systems (Presentation)  

SciTech Connect

This presentation offers new data and statistical analysis of wind power forecasting errors in operational systems.

Hodge, B. M.; Ela, E.; Milligan, M.

2011-10-01T23:59:59.000Z

171

Error Notification, Brookhaven National Laboratory (BNL)  

NLE Websites -- All DOE Office Websites (Extended Search)

Frequently Searched For Frequently Searched For Helpdesk Home Web Services BNL Site Index Can't View PDFs? Need Help Helpdesk Homepage Call the Helpdesk for 24x7 support Bus: 631.344.5522 Fax: 631-344-2140 Email: itdhelp@bnl.gov HTTP Error Forbidden: Page Access Rejected You are not authorized to view this page - This error is caused when the server has a list of IP addresses that are not allowed to access the site, and the IP address you are using is in this list. If the problem persists or if you believe you should be able to view this directory or page, please contact the Web server's administrator or call the Helpdesk by using the email address or phone number listed below. Some reasons for getting this notice: All people outside of the BNL Domain (130.199.0.0) will get this notice.

172

Error Notification, Brookhaven National Laboratory (BNL)  

NLE Websites -- All DOE Office Websites (Extended Search)

Frequently Searched For Frequently Searched For Helpdesk Home Application Services BNL Site Index Can't View PDFs? Need Help Helpdesk Homepage Call the Helpdesk for 24x7 support Bus: 631.344.5522 Fax: 631-344-2140 Email: itdhelp@bnl.gov HTTP Error Forbidden: Page Access Rejected You are not authorized to view this page - This error is caused when the server has a list of IP addresses that are not allowed to access the site, and the IP address you are using is in this list. If the problem persists or if you believe you should be able to view this directory or page, please contact the Web server's administrator or call the Helpdesk by using the email address or phone number listed below. Some reasons for getting this notice: All people outside of the BNL Domain (130.199.0.0) will get this notice.

173

Improved Error Bounds for the Adiabatic Approximation  

E-Print Network (OSTI)

Since the discovery of adiabatic quantum computing, a need has arisen for rigorously proven bounds for the error in the adiabatic approximation. We present in this paper, a rigorous and elementary derivation of upper and lower bounds on the error incurred from using the adiabatic approximation for quantum systems. Our bounds are often asymptotically tight in the limit of slow evolution for fixed Hamiltonians, and are used to provide sufficient conditions for the application of the adiabatic approximation. We show that our sufficiency criteria exclude the Marzlin--Sanders counterexample from the class of Hamiltonians that obey the adiabatic approximation. Finally, we demonstrate the existence of classes of Hamiltonians that resemble the Marzlin--Sanders counterexample Hamiltonian, but also obey the adiabatic approximation.

Cheung, Donny; Wiebe, Nathan

2011-01-01T23:59:59.000Z

174

MEASUREMENTS, ERRORS, AND NEGATIVE KINETIC ENERGY  

E-Print Network (OSTI)

An analysis of errors in measurement yields new insight into the penetration of quantum particles into classically forbidden regions. In addition to “physical” values, realistic measurements yield “unphysical ” values which, we show, can form a consistent pattern. An experiment to isolate a particle in a classically forbidden region obtains negative values for its kinetic energy. These values realize the concept of a weak value, discussed in previous works. 0

Yakir Aharonov; Sandu Popescu; Daniel Rohrlich; Lev Vaidman

1993-01-01T23:59:59.000Z

175

Minimal Achievable Error in the LED problem  

E-Print Network (OSTI)

This paper presents a theoretical model to predict the minimal achievable error, given a noise ratio #, in the LED data set problem. The motivation for developing this theoretical model is to understand and explain some of the results that di#erent systems achieve when they solve the LED problem. Moreover, given a new learning algorithm that solves the LED problem, we can now bound its optimal generalization accuracy.

Xavier Llora; Xavier Llora; David E. Goldberg; David E. Goldberg

2002-01-01T23:59:59.000Z

176

Systematic errors in long baseline oscillation experiments  

Science Conference Proceedings (OSTI)

This article gives a brief overview of long baseline neutrino experiments and their goals, and then describes the different kinds of systematic errors that are encountered in these experiments. Particular attention is paid to the uncertainties that come about because of imperfect knowledge of neutrino cross sections and more generally how neutrinos interact in nuclei. Near detectors are planned for most of these experiments, and the extent to which certain uncertainties can be reduced by the presence of near detectors is also discussed.

Harris, Deborah A.; /Fermilab

2006-02-01T23:59:59.000Z

177

Continuous-time quantum error correction  

E-Print Network (OSTI)

Continuous-time quantum error correction (CTQEC) is an approach to protecting quantum information from noise in which both the noise and the error correcting operations are treated as processes that are continuous in time. This chapter investigates CTQEC based on continuous weak measurements and feedback from the point of view of the subsystem principle, which states that protected quantum information is contained in a subsystem of the Hilbert space. We study how to approach the problem of constructing CTQEC protocols by looking at the evolution of the state of the system in an encoded basis in which the subsystem containing the protected information is explicit. This point of view allows us to reduce the problem to that of protecting a known state, and to design CTQEC procedures from protocols for the protection of a single qubit. We show how previously studied CTQEC schemes with both direct and indirect feedback can be obtained from strategies for the protection of a single qubit via weak measurements and weak unitary operations. We also review results on the performance of CTQEC with direct feedback in cases of Markovian and non-Markovian decoherence, where we have shown that due to the existence of a Zeno regime in non-Markovian dynamics, the performance of CTQEC can exhibit a quadratic improvement if the time resolution of the weak error-correcting operations is high enough to reveal the non-Markovian character of the noise process.

Ognyan Oreshkov

2013-11-11T23:59:59.000Z

178

An Iterative Rejection Sampling Method  

E-Print Network (OSTI)

In the note we consider an iterative generalisation of the rejection sampling method. In high energy physics, this sampling is frequently used for event generation, i.e. preparation of phase space points distributed according to a matrix element squared $|M|^2$ for a scattering process. In many realistic cases $|M|^2$ is a complicated multi-dimensional function, so, the standard von Neumann procedure has quite low efficiency, even if an error reducing technique, like VEGAS, is applied. As a result of that, many of the $|M|^2$ calculations go to ``waste''. The considered iterative modification of the procedure can extract more ``unweighted'' events, i.e. distributed according to $|M|^2$. In several simple examples we show practical benefits of the technique and obtain more events than the standard von Neumann method, without any extra calculations of $|M|^2$.

A. Sherstnev

2008-07-17T23:59:59.000Z

179

Verification of unfold error estimates in the UFO code  

SciTech Connect

Spectral unfolding is an inverse mathematical operation which attempts to obtain spectral source information from a set of tabulated response functions and data measurements. Several unfold algorithms have appeared over the past 30 years; among them is the UFO (UnFold Operator) code. In addition to an unfolded spectrum, UFO also estimates the unfold uncertainty (error) induced by running the code in a Monte Carlo fashion with prescribed data distributions (Gaussian deviates). In the problem studied, data were simulated from an arbitrarily chosen blackbody spectrum (10 keV) and a set of overlapping response functions. The data were assumed to have an imprecision of 5% (standard deviation). 100 random data sets were generated. The built-in estimate of unfold uncertainty agreed with the Monte Carlo estimate to within the statistical resolution of this relatively small sample size (95% confidence level). A possible 10% bias between the two methods was unresolved. The Monte Carlo technique is also useful in underdetemined problems, for which the error matrix method does not apply. UFO has been applied to the diagnosis of low energy x rays emitted by Z-Pinch and ion-beam driven hohlraums.

Fehl, D.L.; Biggs, F.

1996-07-01T23:59:59.000Z

180

Anytime induction of low-cost, low-error classifiers: a sampling-based approach  

Science Conference Proceedings (OSTI)

Machine learning techniques are gaining prevalence in the production of a wide range of classifiers for complex real-world applications with nonuniform testing and misclassification costs. The increasing complexity of these applications poses a real ...

Saher Esmeir; Shaul Markovitch

2008-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Evaluation of Sampling Errors of Precipitation from Spaceborne and Ground Sensors  

Science Conference Proceedings (OSTI)

The spatial and temporal characteristics of rainfall over Oklahoma and Kansas are analyzed in this paper using the raingage data collected during the Preliminary Regional Experiment for STORM-Central (PRESTORM). The autocorrelation function and ...

Charles E. Graves; Juan B. Valdés; Samuel S. P. Shen; Gerald R. North

1993-02-01T23:59:59.000Z

182

The Kinetic Energy of Hailfalls. Part III: Sampling Errors Inferred, from Radar Data  

Science Conference Proceedings (OSTI)

The representativeness of hailfall kinetic energies derived from point measurements of networks is studied by means of radar data of hail cells. The 202 cells were observed within a radius of 60 km from the 10 cm radar. Different Cartesian ...

A. Waldvogel; W. Schmid

1982-09-01T23:59:59.000Z

183

Toward Random Sampling of Model Error in the Canadian Ensemble Prediction System  

Science Conference Proceedings (OSTI)

An updated global ensemble prediction system became operational at the Meteorological Service of Canada in July 2007. The new elements of the system include the use of 20 members instead of 16, a single dynamical core [the Global Environmental ...

Martin Charron; Gérard Pellerin; Lubos Spacek; P. L. Houtekamer; Normand Gagnon; Herschel L. Mitchell; Laurent Michelin

2010-05-01T23:59:59.000Z

184

Sampling Errors in the Measurement of Rainfall Parameters Using the Precipitation Occurrence Sensor System (POSS)  

Science Conference Proceedings (OSTI)

The Precipitation Occurrence Sensor System (POSS) is a small Doppler radar originally designed by the Meteorological Service of Canada (MSC) to report the occurrence, type, and intensity of precipitation in automated observing stations. It is ...

B. E. Sheppard

2007-02-01T23:59:59.000Z

185

Solid-State Lighting: Text-Alternative Version: Understanding...  

NLE Websites -- All DOE Office Websites (Extended Search)

were some errors that were being introduced by our trusted test labs because they're human, and some of these new metrics required some hand calculations. You know, they use...

186

Sensitivity of OFDM Systems to Synchronization Errors and Spatial Diversity  

E-Print Network (OSTI)

In this dissertation, the problem of synchronization for OFDM-based wireless communication systems is studied. In the first part of this dissertation, the sensitivity of both single input single output (SISO) OFDM and multiple input multiple output (MIMO) OFDM receivers to carrier and timing synchronization errors are analyzed. Analytical expressions and numerical results for the power of inter-carrier interference (ICI) are presented. It is shown that the OFDM-based receivers are quite sensitive to residual synchronization errors. In wide-sense stationary uncorrelated scattering (WSSUS) frequency-selective fading channels, the sampling clock timing offset results in rotation of the subcarrier constellation, while carrier frequency offsets and phase jitter cause inter-carrier interference. The overall system performance in terms of symbol error rate is limited by the inter-carrier interference. For a reliable information reception, compensatory measures must be taken. The second part of this dissertation deals with the impact of spatial diversity (usage of multiple transmit/receive antennas) on synchronization. It is found that with multiple transmit and receive antennas, MIMO-OFDM systems can take advantage of the spatial diversity to combat carrier and timing synchronization imperfections. Diversity can favorably improve the synchronization performance. Data-aided and non-data-aided maximum likelihood symbol timing estimators for MIMO-OFDM systems are introduced. Computer simulations show that, by exploiting the spatial diversity, synchronization performance of MIMO-OFDM systems in terms of mean squared error (MSE) of residual timing offset becomes significantly more reliable when compared to conventional SISO OFDM systems. Therefore, spatial diversity is a useful technique to be exploited in the deployment of MIMO-OFDM communication systems. In MIMO systems with synchronization sequences, timing synchronization is treated as a multiple hypotheses testing problem. Generalized likelihood ratio test (GLRT) statistics are developed for MIMO systems in frequency flat channels and MIMO-OFDM systems in frequency selective fading environments. The asymptotic performance of the GLRT without nuisance parameters is carried out. It is shown that the asymptotic performance of the GLRT can serve as an upper bound for the detection probability in the presence of a limited number of observations as well as a benchmark for comparing the performances of different timing synchronizers.

Zhou, Yi

2010-12-01T23:59:59.000Z

187

Sampling of Procedural Shaders Using Affine Arithmetic  

E-Print Network (OSTI)

Procedural shaders have become popular tools for describing surface reflectance functions and other material properties. In comparison to fixed resolution textures they have the advantage of being resolution independent and storage e#cient. While procedural shaders provide an interface for evaluating the shader at a single point in parameter space, it is not easily possible to obtain an average value of the shader together with accurate error bounds over a finite area. Yet the ability to compute such error bounds is crucial for several interesting applications, most notably hierarchical area sampling for global illumination computations using the finite element approach and for the generation of textures used in interactive computer graphics. Using a#ne arithmetic for evaluating the shader over a finite area yields a tight, conservative error interval for the shader function. Compilers can automatically generate code for utilizing a#ne arithmetic from within shaders implemented in a ...

Heidrich

1996-01-01T23:59:59.000Z

188

Truncation Effects on Estimated Parameters of Tracer Distributions Sampled on Finite Domains  

Science Conference Proceedings (OSTI)

Methods are presented and demonstrated for compensating for the apparent effect of truncation of the sampled crosswind distribution of a tracer, at either or both boundaries of a surface sampling grid downwind from the point of release. Errors ...

J. Z. Holland

1988-03-01T23:59:59.000Z

189

Error Reduction for Weigh-In-Motion  

Science Conference Proceedings (OSTI)

Federal and State agencies need certifiable vehicle weights for various applications, such as highway inspections, border security, check points, and port entries. ORNL weigh-in-motion (WIM) technology was previously unable to provide certifiable weights, due to natural oscillations, such as vehicle bouncing and rocking. Recent ORNL work demonstrated a novel filter to remove these oscillations. This work shows further filtering improvements to enable certifiable weight measurements (error < 0.1%) for a higher traffic volume with less effort (elimination of redundant weighing).

Hively, Lee M [ORNL; Abercrombie, Robert K [ORNL; Scudiere, Matthew B [ORNL; Sheldon, Frederick T [ORNL

2009-01-01T23:59:59.000Z

190

Systematic Sampling of Scanning Lidar Swaths  

E-Print Network (OSTI)

Proof of concept lidar research has, to date, examined wall-to-wall models of forest ecosystems. While these studies have been important for verifying lidars efficacy for forest surveys, complete coverage is likely not the most cost effective means of using lidar as auxiliary data for operational surveys; sampling of some sort being the better alternative. This study examines the effectiveness of sampling with high point-density scanning lidar data and shows that systematic sampling is a better alternative to simple random sampling. It examines the bias and mean squared error of various estimators, and concludes that a linear-trend-based and especially an autocorrelation-assisted variance estimator perform better than the commonly used simple random sampling based-estimator when sampling is systematic.

Marcell, Wesley Tyler

2009-12-01T23:59:59.000Z

191

Accounting for Model Errors in Ensemble Data Assimilation  

Science Conference Proceedings (OSTI)

This study addresses the issue of model errors with the ensemble Kalman filter. Observations generated from the NCEP–NCAR reanalysis fields are assimilated into a low-resolution AGCM. Without an effort to account for model errors, the performance ...

Hong Li; Eugenia Kalnay; Takemasa Miyoshi; Christopher M. Danforth

2009-10-01T23:59:59.000Z

192

Distributed Forcing of Forecast and Assimilation Error Systems  

Science Conference Proceedings (OSTI)

Temporally distributed deterministic and stochastic excitation of the tangent linear forecast system governing forecast error growth and the tangent linear observer system governing assimilation error growth is examined. The method used is to ...

Brian F. Farrell; Petros J. Ioannou

2005-02-01T23:59:59.000Z

193

Stability of error bounds for convex constraint systems in Banach ...  

E-Print Network (OSTI)

Jan 7, 2010 ... space X the error bound property is defined by the inequality ... is the error bound modulus [8]) (also known as conditioning rate [23]) of f at ¯x.

194

An Objective Method for Inferring Sources of Model Error  

Science Conference Proceedings (OSTI)

A restricted statistical correction (RSC) approach is introduced to assess the sources of error in general circulation models (GCMs). RSC models short-term forecast error by considering linear transformations of the GCM's forcing terms, which ...

Siegfried Schubert; Yehui Chang

1996-02-01T23:59:59.000Z

195

Forecast-Error Statistics for Homogeneous and Inhomogeneous Observation Networks  

Science Conference Proceedings (OSTI)

Objective analysis procedures such as statistical interpolation require reliable estimates of forecast-error statistics in order to optimize the analysis weights. Reasonably good estimates of the forecast-error statistics can be obtained from ...

Roger Daley

1992-04-01T23:59:59.000Z

196

Zero-error capacity of a quantum channel  

E-Print Network (OSTI)

We define the quantum zero-error capacity, a new kind of classical capacity of a noisy quantum channel. Moreover, the necessary requirement for which a quantum channel has zero-error capacity greater than zero is also given.

Rex A. C. Medeiros; Francisco M. de Assis

2004-03-26T23:59:59.000Z

197

Prediction of Consensus Tropical Cyclone Track Forecast Error  

Science Conference Proceedings (OSTI)

The extent to which the tropical cyclone (TC) track forecast error of a consensus model (CONU) routinely used by the forecasters at the National Hurricane Center can be predicted is determined. A number of predictors of consensus forecast error, ...

James S. Goerss

2007-05-01T23:59:59.000Z

198

Hidden Error Variance Theory. Part I: Exposition and Analytic Model  

Science Conference Proceedings (OSTI)

A conundrum of predictability research is that while the prediction of flow-dependent error distributions is one of its main foci, chaos fundamentally hides flow-dependent forecast error distributions from empirical observation. Empirical ...

Craig H. Bishop; Elizabeth A. Satterfield

2013-05-01T23:59:59.000Z

199

The Midlatitude Development of Regional Errors in a Global GCM  

Science Conference Proceedings (OSTI)

The growth of geographically confined errors is studied in six experiments with a five-level global spectral (rhomboidal 30) general circulation model. Each experiment consists of 36 identical twin integrations with the initial errors localized ...

David M. Straus

1993-08-01T23:59:59.000Z

200

Error Estimation Using Wavelet Analysis for Data Assimilation: EEWADAi  

Science Conference Proceedings (OSTI)

A new method is presented for estimating numerical errors in simulations as a function of space and time. This knowledge of numerical errors can provide critical information for the effective assimilation of external data. The new method utilizes ...

Leland Jameson; Takuji Waseda

2000-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

MEASURING LOCAL GRADIENT AND SKEW QUADRUPOLE ERRORS IN RHIC IRS.  

SciTech Connect

The measurement of local linear errors at RHIC interaction regions using an ''action and phase'' analysis of difference orbits has already been presented. This paper evaluates the accuracy of this technique using difference orbits that were taken when known gradient errors and skew quadrupole errors were intentionally introduced. It also presents action and phase analysis of simulated orbits when controlled errors are intentionally placed in a RHIC simulation model.

CARDONA,J.; PEGGS,S.; PILAT,R.; PTITSYN,V.

2004-07-05T23:59:59.000Z

202

Effects of uncertainties and errors on Lyapunov control  

E-Print Network (OSTI)

Lyapunov control (open-loop) is often confronted with uncertainties and errors in practical applications. In this paper, we analyze the robustness of Lyapunov control against the uncertainties and errors in quantum control systems. The analysis is carried out through examinations of uncertainties and errors, calculations of the control fidelity under influences of the certainties and errors, as well as discussions on the caused effects. Two examples, a closed control system and an open control system, are presented to illustrate the general formulism.

Yi, X X; Wu, Chunfeng; Oh, C H

2010-01-01T23:59:59.000Z

203

Unitary application of the quantum error correction codes  

E-Print Network (OSTI)

From the set of operators for errors and its correction code, we introduce the so-called complete unitary transformation. It can be used for encoding while the inverse of it can be applied for correcting the errors of the encoded qubit. We show that this unitary protocol can be applied for any code which satisfies the quantum error correction condition.

Xoaohua Wu; Bo You

2011-06-24T23:59:59.000Z

204

Coded DNA Self-Assembly for Error Detection/Location  

Science Conference Proceedings (OSTI)

This paper proposes a novel framework in which DNA self-assembly can be analyzed for error detection/ location. The proposed framework relies on coding and mapping functions that allow to establish the presence of erroneous bonded tiles based on the ... Keywords: Coding, Nano Manufacturing, Error Detection, Error Resilience

Zahra Mashreghian Arani; Masoud Hashempour; Fabrizio Lombardi

2009-10-01T23:59:59.000Z

205

Semantic errors in SQL queries: a quite complete list  

Science Conference Proceedings (OSTI)

We investigate classes of SQL queries which are syntactically correct, but certainly not intended, no matter for which task the query was written. For instance, queries that are contradictory, i.e. always return the empty set, are obviously not intended. ... Keywords: SQL, SQL exams, bugs, database courses, databases, errors, logical errors, queries, semantic errors, software correctness, static analysis, teaching

Stefan Brass; Christian Goldberg

2006-05-01T23:59:59.000Z

206

Sample page | Open Energy Information  

Open Energy Info (EERE)

Sample page Sample page Jump to: navigation, search This page has been rated 13[1][2] on the scale of awesomness. This page is awesome! The above text is generated by the SampleTemplate. Try editing it and changing the level of awesomeness to see the template react. Hint: It says something different depending on whether or not the page is at least 5 awesome. This page is related to the following topics[3][4]: References Sample pages Help pages Additional Info Name Sample page Awesomeness 13 Topics (raw) References; Sample pages; Help pages; References ↑ Francis C. Monastero. 2002. An overview of industry-military cooperation in the development of power operations at the Coso geothermal field in southern California. GRC Bulletin. . ↑ EPRI. 12/12/2012. Assessment and Mapping of the Riverine

207

Acceptance sampling methods for sample results verification  

SciTech Connect

This report proposes a statistical sampling method for use during the sample results verification portion of the validation of data packages. In particular, this method was derived specifically for the validation of data packages for metals target analyte analysis performed under United States Environmental Protection Agency Contract Laboratory Program protocols, where sample results verification can be quite time consuming. The purpose of such a statistical method is to provide options in addition to the ``all or nothing`` options that currently exist for sample results verification. The proposed method allows the amount of data validated during the sample results verification process to be based on a balance between risks and the cost of inspection.

Jesse, C.A.

1993-06-01T23:59:59.000Z

208

Error minimizing algorithms for nearest eighbor classifiers  

SciTech Connect

Stack Filters define a large class of discrete nonlinear filter first introd uced in image and signal processing for noise removal. In recent years we have suggested their application to classification problems, and investigated their relationship to other types of discrete classifiers such as Decision Trees. In this paper we focus on a continuous domain version of Stack Filter Classifiers which we call Ordered Hypothesis Machines (OHM), and investigate their relationship to Nearest Neighbor classifiers. We show that OHM classifiers provide a novel framework in which to train Nearest Neighbor type classifiers by minimizing empirical error based loss functions. We use the framework to investigate a new cost sensitive loss function that allows us to train a Nearest Neighbor type classifier for low false alarm rate applications. We report results on both synthetic data and real-world image data.

Porter, Reid B [Los Alamos National Laboratory; Hush, Don [Los Alamos National Laboratory; Zimmer, G. Beate [TEXAS A& M

2011-01-03T23:59:59.000Z

209

Graphical Quantum Error-Correcting Codes  

E-Print Network (OSTI)

We introduce a purely graph-theoretical object, namely the coding clique, to construct quantum errorcorrecting codes. Almost all quantum codes constructed so far are stabilizer (additive) codes and the construction of nonadditive codes, which are potentially more efficient, is not as well understood as that of stabilizer codes. Our graphical approach provides a unified and classical way to construct both stabilizer and nonadditive codes. In particular we have explicitly constructed the optimal ((10,24,3)) code and a family of 1-error detecting nonadditive codes with the highest encoding rate so far. In the case of stabilizer codes a thorough search becomes tangible and we have classified all the extremal stabilizer codes up to 8 qubits.

Sixia Yu; Qing Chen; C. H. Oh

2007-09-12T23:59:59.000Z

210

Asymmetric error field interaction with rotating conducting walls  

Science Conference Proceedings (OSTI)

The interaction of error fields with a system of differentially rotating conducting walls is studied analytically and compared to experimental data. Wall rotation causes eddy currents to persist indefinitely, attenuating and rotating the original error field. Superposition of error fields from external coils and plasma currents are found to break the symmetry in wall rotation direction. The vacuum and plasma eigenmodes are modified by wall rotation, with the error field penetration time decreased and the kink instability stabilized, respectively. Wall rotation is also predicted to reduce error field amplification by the marginally stable plasma.

Paz-Soldan, C.; Brookhart, M. I.; Hegna, C. C.; Forest, C. B. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)

2012-07-15T23:59:59.000Z

211

Reasoning about human error by modeling cognition and interaction  

E-Print Network (OSTI)

In this paper we focus on system resilience from the perspective of understanding human error. In particular, we consider systematic cognitive slips, including postcompletion errors, which are persistent, though infrequent. We outline the findings from empirical studies that have identified various factors that provoke or mitigate against such errors. We then describe approaches we are pursuing to encapsulate these insights in ways that can be re-used within system design. More broadly, we argue that an understanding of the factors that influence the likelihood of such errors can support organizations in designing systems and processes to minimize the likelihood of such errors.

Ann Blandford; Jonathan Back; Paul Curzon; Simon Y. W. Li; Rimvydas Ruksenas

2006-01-01T23:59:59.000Z

212

Improving partial parsing based on error-pattern analysis for a Korean grammar-checker  

Science Conference Proceedings (OSTI)

The main aim of this work is to make improvements to Mirine 2.2, a Korean grammar-checker that takes Korean language properties into account and to develop a system that satisfies user expectations. Particular attention is given to processing Korean ... Keywords: Korean grammar checker, error-pattern analysis, language, linguistic analysis, parsing, parsing triggering condition, partial parsing, text preprocessing

Mi-Young Kang; Aesun Yoon; Hyuk-Chul Kwon

2003-12-01T23:59:59.000Z

213

Statistical semantic and clinician confidence analysis for correcting abbreviations and spelling errors in clinical progress notes  

Science Conference Proceedings (OSTI)

Motivation: Progress notes are narrative summaries about the status of patients during the course of treatment or care. Time and efficiency pressures have ensured clinicians' continued preference for unstructured text over entering data in forms when ... Keywords: Abbreviation expansion, Progress note cleaning, Spelling error correction, Syntagmatic and paradigmatic similarity

Wilson Wong; David Glance

2011-11-01T23:59:59.000Z

214

Sample Preparation Laboratory Training - Course 204 | Sample...  

NLE Websites -- All DOE Office Websites (Extended Search)

Sample Preparation Laboratory Training - Course 204 Who Should Attend This course is mandatory for: SLAC employees and non-employees who need unescorted access to SSRL or LCLS...

215

Error-eliminating rapid ultrasonic firing  

DOE Patents (OSTI)

A system for producing reliable navigation data for a mobile vehicle, such as a robot, combines multiple range samples to increase the confidence'' of the algorithm in the existence of an obstacle. At higher vehicle speed, it is crucial to sample each sensor quickly and repeatedly to gather multiple samples in time to avoid a collision. Erroneous data is rejected by delaying the issuance of an ultrasonic energy pulse by a predetermined wait-period, which may be different during alternate ultrasonic firing cycles. Consecutive readings are compared, and the corresponding data is rejected if the readings differ by more than a predetermined amount. The rejection rate for the data is monitored and the operating speed of the navigation system is reduced if the data rejection rate is increased. This is useful to distinguish and eliminate noise from the data which truly represents the existence of an article in the field of operation of the vehicle.

Borenstein, J.; Koren, Y.

1993-08-24T23:59:59.000Z

216

Error-eliminating rapid ultrasonic firing  

DOE Patents (OSTI)

A system for producing reliable navigation data for a mobile vehicle, such as a robot, combines multiple range samples to increase the "confidence" of the algorithm in the existence of an obstacle. At higher vehicle speed, it is crucial to sample each sensor quickly and repeatedly to gather multiple samples in time to avoid a collision. Erroneous data is rejected by delaying the issuance of an ultrasonic energy pulse by a predetermined wait-period, which may be different during alternate ultrasonic firing cycles. Consecutive readings are compared, and the corresponding data is rejected if the readings differ by more than a predetermined amount. The rejection rate for the data is monitored and the operating speed of the navigation system is reduced if the data rejection rate is increased. This is useful to distinguish and eliminate noise from the data which truly represents the existence of an article in the field of operation of the vehicle.

Borenstein, Johann (Ann Arbor, MI); Koren, Yoram (Ann Arbor, MI)

1993-08-24T23:59:59.000Z

217

Practical reporting times for environmental samples  

Science Conference Proceedings (OSTI)

Preanalytical holding times for environmental samples are specified because chemical and physical characteristics may change between sampling and chemical analysis. For example, the Federal Register prescribes a preanalytical holding time of 14 days for volatile organic compounds in soil stored at 4{degrees}C. The American Society for Testing Materials (ASTM) uses a more technical definition that the preanalytical holding time is the day when the analyte concentration for an environmental sample falls below the lower 99% confidence interval on the analyte concentration at day zero. This study reviews various holding time definitions and suggest a new preanalytical holding time approach using acceptable error rates for measuring an environmental analyte. This practical reporting time (PRT) approach has been applied to nineteen volatile organic compounds and four explosives in three environmental soil samples. A PRT nomograph of error rates has been developed to estimate the consequences of missing a preanalytical holding time. This nomograph can be applied to a large class of analytes with concentrations that decay linearly or exponentially with time regardless of sample matrices and storage conditions.

Bayne, C.K.; Schmoyer, D.D.; Jenkins, R.A.

1993-02-01T23:59:59.000Z

218

Merchant Commodity Storage and Term Structure Model Error  

E-Print Network (OSTI)

Merchants operations involves valuing and hedging the cash flows of commodity and energy conversion assets as real options based on stochastic models that inevitably embed model error. In this paper we quantify how empirically calibrated model errors about the futures price term structure affect the valuation and hedging of commodity storage assets, specifically the storage of natural gas, an important energy source. We also explore ways to mitigate the impact of these errors. Our analysis demonstrates the differential impact of term structure model error on natural gas storage valuation versus hedging. We also propose an effective approach to deal with the negative effect of such model error on factor hedging, a specific hedging approach. More generally, our work suggests managerial principles for option valuation and hedging in the presence of term structure model error. These principles should have relevance for the merchant management of other commodity conversion assets and for the management of financial options that also depend on term structure dynamics

Nicola Secom; Guoming Lai; François Margot; Alan Scheller-wolf

2011-01-01T23:59:59.000Z

219

Running jobs error: "inet_arp_address_lookup"  

NLE Websites -- All DOE Office Websites (Extended Search)

maintenance, users reporting get the error message similar as follows occassionaly: PE456:inetarpaddresslookup:Failed to read output of sbinarp -a -i ipogif0 command. Try...

220

Historical Ocean Subsurface Temperature Analysis with Error Estimates  

Science Conference Proceedings (OSTI)

An objective analysis of monthly ocean subsurface temperatures from 1950 to 1998 is carried out. The analysis scheme and the results with estimated analysis errors are presented.

Masayoshi Ishii; Masahide Kimoto; Misako Kachi

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Loaded Transmission Error Measurement System for Spur and Helical Gears.  

E-Print Network (OSTI)

??The majority of loaded static transmission error test stands developed in the past had little success generating accurate results versus analytical predictions for parallel-axis gearing.… (more)

Wright, Zachary Harrison

2009-01-01T23:59:59.000Z

222

Generic Error Model of Human-Robot Interaction  

E-Print Network (OSTI)

Wrong human-robot interactions are at the origin of severe damages. Safety requirements ask the analysis of these interactions. At first, erroneous interactions have to be identified. In this paper, we propose to use UML (Unified Modeling Language) to specify human robot interaction. Then, generic error models, associated with the message feature provided by UML, are presented. These error models allow interaction errors to be automatically deduced from the modeling of the human-robot interactions. The use of these generic error models is illustrated on a medical robot for teleechography.

J. Guiochet; et al.

2004-01-01T23:59:59.000Z

223

ERROR BOUNDS FOR VECTOR-VALUED FUNCTIONS ON ...  

E-Print Network (OSTI)

referred to the survey papers by Azé [2], Lewis & Pang [25], Pang [33], as well as the book by Auslender & Teboule [1]. Numerous characterizations of the error ...

224

Use of Quantum Error Coding in a 4-Blade Neutron ...  

Science Conference Proceedings (OSTI)

Use of Quantum Error Coding in a 4-Blade Neutron Interferometer. Summary: ... Figure 1: A schematic diagram of the 5-blade neutron interferometer. ...

2013-07-30T23:59:59.000Z

225

NIST Achieves Record-Low Error Rate for Quantum ...  

Science Conference Proceedings (OSTI)

... The horizontal and vertical lines separate gold electrodes, which are tuned to ... errors caused by instability in laser beam pointing and power, as well ...

2011-08-30T23:59:59.000Z

226

Electricity Grid Basics Webinar Presentation Slides and Text...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Electricity Grid Basics Webinar Presentation Slides and Text Version Electricity Grid Basics Webinar Presentation Slides and Text Version Download presentation slides and a text...

227

September 2004 Water Sampling  

Office of Legacy Management (LM)

Sampling at the Sampling at the Shirley Basin South, Wyoming, Disposal Site September 2013 LMS/SBS/S00613 This page intentionally left blank U.S. Department of Energy DVP-June 2013, Shirley Basin South, Wyoming September 2013 RIN 13065426 Page i Contents Sampling Event Summary ...............................................................................................................1 Shirley Basin South, Wyoming, Disposal Site Sample Location Map ............................................3 Data Assessment Summary ..............................................................................................................5 Water Sampling Field Activities Verification Checklist .............................................................7

228

Gas Flux Sampling (Lewicki & Oldenburg) | Open Energy Information  

Open Energy Info (EERE)

Gas Flux Sampling (Lewicki & Oldenburg) Gas Flux Sampling (Lewicki & Oldenburg) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Gas Flux Sampling (Lewicki & Oldenburg) Exploration Activity Details Location Unspecified Exploration Technique Gas Flux Sampling Activity Date Usefulness useful DOE-funding Unknown References Jennifer L. Lewicki, Curtis M. Oldenburg (Unknown) Near-Surface Co2 Monitoring And Analysis To Detect Hidden Geothermal Systems Retrieved from "http://en.openei.org/w/index.php?title=Gas_Flux_Sampling_(Lewicki_%26_Oldenburg)&oldid=508144" Categories: Exploration Activities DOE Funded Activities What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

229

Rain sampling device  

DOE Patents (OSTI)

The present invention constitutes a rain sampling device adapted for independent operation at locations remote from the user which allows rainfall to be sampled in accordance with any schedule desired by the user. The rain sampling device includes a mechanism for directing wet precipitation into a chamber, a chamber for temporarily holding the precipitation during the process of collection, a valve mechanism for controllably releasing samples of the precipitation from the chamber, a means for distributing the samples released from the holding chamber into vessels adapted for permanently retaining these samples, and an electrical mechanism for regulating the operation of the device. 11 figures.

Nelson, D.A.; Tomich, S.D.; Glover, D.W.; Allen, E.V.; Hales, J.M.; Dana, M.T.

1991-05-14T23:59:59.000Z

230

Creative Uses of Software Errors: Glitches and Cheats  

Science Conference Proceedings (OSTI)

Video games constitute a major sector of computing with distinctive social implications. Analysis of video game programming errors, design limitations, and rule ambiguities suggests a range of positive functions that glitches and cheats may perform. ... Keywords: cheat, computer, error, glitch, video game

Wilma Alice Bainbridge; William Sims Bainbridge

2007-02-01T23:59:59.000Z

231

Multistrategy Discovery and Detection of Novice Programmer Errors  

Science Conference Proceedings (OSTI)

Detecting and diagnosing errors in novice behavior is an important student modeling task. In this paper, we describe MEDD, an unsupervised incremental multistrategy system for the discovery of classes of errors from, and their detection in, novice programs. ... Keywords: conceptual clustering, multistrategy learning, student modeling, unsupervised learning

Raymund C. Sison; Masayuki Numao; Masamichi Shimura

2000-01-01T23:59:59.000Z

232

Soft Error Vulnerability of Iterative Linear Algebra Methods  

Science Conference Proceedings (OSTI)

Devices become increasingly vulnerable to soft errors as their feature sizes shrink. Previously, soft errors primarily caused problems for space and high-atmospheric computing applications. Modern architectures now use features so small at sufficiently low voltages that soft errors are becoming significant even at terrestrial altitudes. The soft error vulnerability of iterative linear algebra methods, which many scientific applications use, is a critical aspect of the overall application vulnerability. These methods are often considered invulnerable to many soft errors because they converge from an imprecise solution to a precise one. However, we show that iterative methods can be vulnerable to soft errors, with a high rate of silent data corruptions. We quantify this vulnerability, with algorithms generating up to 8.5% erroneous results when subjected to a single bit-flip. Further, we show that detecting soft errors in an iterative method depends on its detailed convergence properties and requires more complex mechanisms than simply checking the residual. Finally, we explore inexpensive techniques to tolerate soft errors in these methods.

Bronevetsky, G; de Supinski, B

2007-12-15T23:59:59.000Z

233

Network protocols: correcting transmission errors of up to two bits  

Science Conference Proceedings (OSTI)

While the construction of Hamming Codes that can detect and correct 1-bit transmission errors has been illustrated [1], Hamming Codes that will detect and correct transmission errors of more than 1 bit remain yet to be constructed. In this paper, ...

Sei-Jong Chung

2003-12-01T23:59:59.000Z

234

Design error diagnosis and correction in digital circuits  

E-Print Network (OSTI)

As the design of digital systems is becoming Micrographics. increasingly complex, an undetected design error in the late phase of the design process may have catastrophic consequences. It is thus very important to discover these design errors as early as and efficient way. Simulation and tautology possible, and to correct them in a fast checking can be used for design verification. Their role is only to decide whether the design is correct or not. But when the existence of an error is detected, further mechanized help is needed to and the error correction. Though error diagnosis methods based on simulation are simple and fast, they are not considered accurate enough to be used for error correction. Symbolic methods based on Binary Decision Diagrams (BDDs) are accurate enough to be used both for diagnosis and correction, but they have limited applicability due to the memory explosion problem associated with BDDS. This work presents a simulation-based error correction procedure, which can efficiently overcome the limitations of a symbolic error correction method without sacrificing much accuracy.

Nayak, Debashis

1998-01-01T23:59:59.000Z

235

Tangential residual as error estimator in the boundary element method  

Science Conference Proceedings (OSTI)

In this paper a new error estimator based on tangential derivative Boundary Integral Equation residuals for 2D Laplace and Helmholtz equations is shown. The direct problem for general mixed boundary conditions is solved using standard and hypersingular ... Keywords: Adaptivity, Boundary Integral Equation residual, Boundary element method, Error estimation, Mesh adaptation, Mesh refinement, Nodal sensitivity

Alejandro E. Martínez-Castro; Rafael Gallego

2005-04-01T23:59:59.000Z

236

Error estimates for the numerical approximation of Neumann control problems  

Science Conference Proceedings (OSTI)

We continue the discussion of error estimates for the numerical analysis of Neumann boundary control problems we started in Casas et al. (Comput. Optim. Appl. 31:193-219, 2005). In that paper piecewise constant functions were used to approximate the ... Keywords: boundary control, error estimates, numerical approximation, semilinear elliptic equation

Eduardo Casas; Mariano Mateos

2008-04-01T23:59:59.000Z

237

Analyzing localization errors in one-dimensional sensor networks  

Science Conference Proceedings (OSTI)

One-dimensional sensor networks can be found in many fields and demand node location information for various applications. Developing localization algorithms in one-dimensional sensor networks is trivial, due to the fact that existing localization algorithms ... Keywords: Cramér-Rao lower bound, Error propagation, Estimation errors, Localization, One-dimensional sensor networks

Baoqi Huang; Changbin Yu; Brian D. O. Anderson

2012-02-01T23:59:59.000Z

238

How to communicate unit error messages in spreadsheets  

E-Print Network (OSTI)

In previous work we have designed and implemented an automatic reasoning system for spreadsheets, called UCheck, that infers unit information for cells in a spreadsheet. Based on this unit information, UCheck can identify cells in the spreadsheet that contain erroneous formulas. However, the information about an erroneous cell is reported to the user currently in a rather crude way by simply coloring the cell, which does not tell anything about the nature of error and thus offers no help to the user as to how to fix it. In this paper we describe an extension of UCheck, called UFix, which improves the error messages reported to the spreadsheet user dramatically. The approach essentially consists of three steps: First, we identify different categories of spreadsheet errors from an end-user’s perspective. Second, we map units that indicate erroneous formulas to these error categories. Finally, we create customized error messages from the unit information and the identified error category. In many cases, these error messages also provide suggestions on how to fix the reported errors.

Robin Abraham; Martin Erwig

2005-01-01T23:59:59.000Z

239

PROPANE: An Environment for Examining the Propagation of Errors  

E-Print Network (OSTI)

In order to produce reliable software, it is important to have knowledge on how faults and errors may affect the software. In particular, designing efficient error detection mechanisms requires not only knowledge on which types of errors to detect but also the effect these errors may have on the software as well as how they propagate through the software. This paper presents the Propagation Analysis Environment (PROPANE) which is a tool for profiling and conducting fault injection experiments on software running on desktop computers. PROPANE supports the injection of both software faults (by mutation of source code) and data errors (by manipulating variable and memory contents). PROPANE supports various error types out-of-the-box and has support for user-defined error types. For logging, probes are provided for charting the values of variables and memory areas as well as for registering events during execution of the system under test. PROPANE has a flexible design making it useful for development of a wide range of software systems, e.g., embedded software, generic software components, or user-level desktop applications. We show examples of results obtained using PROPANE and how these can guide software developers to where software error detection and recovery could increase the reliability of the software system.

Martin Hiller; Arshad Jhumka; Neeraj Suri

2002-01-01T23:59:59.000Z

240

Type error slicing in implicitly typed higher-order languages  

Science Conference Proceedings (OSTI)

Previous methods have generally identified the location of a type error as a particular program point or the program subtree rooted at that point. We present a new approach that identifies the location of a type error as a set of program points (a slice) ...

Christian Haack; J. B. Wells

2003-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Discriminative sum types locate the source of type errors  

Science Conference Proceedings (OSTI)

We propose a type system for locating the source of type errors in an applied lambda calculus with ML-style polymorphism. The system is based on discriminative sum types---known from work on soft typing---with annotation subtyping and recursive types. ... Keywords: polymorphism, type errors, type inference

Matthias Neubauer; Peter Thiemann

2003-08-01T23:59:59.000Z

242

An Efficient Approach towards Mitigating Soft Errors Risks  

E-Print Network (OSTI)

Smaller feature size, higher clock frequency and lower power consumption are of core concerns of today's nano-technology, which has been resulted by continuous downscaling of CMOS technologies. The resultant 'device shrinking' reduces the soft error tolerance of the VLSI circuits, as very little energy is needed to change their states. Safety critical systems are very sensitive to soft errors. A bit flip due to soft error can change the value of critical variable and consequently the system control flow can completely be changed which leads to system failure. To minimize soft error risks, a novel methodology is proposed to detect and recover from soft errors considering only 'critical code blocks' and 'critical variables' rather than considering all variables and/or blocks in the whole program. The proposed method shortens space and time overhead in comparison to existing dominant approaches.

Sadi, Muhammad Sheikh; Uddin, Md Nazim; Jürjens, Jan

2011-01-01T23:59:59.000Z

243

Inductively Coupled Plasma Mass Spectrometry Uranium Error Propagation  

SciTech Connect

The Hazards Control Department at Lawrence Livermore National Laboratory (LLNL) uses Inductively Coupled Plasma Mass Spectrometer (ICP/MS) technology to analyze uranium in urine. The ICP/MS used by the Hazards Control Department is a Perkin-Elmer Elan 6000 ICP/MS. The Department of Energy Laboratory Accreditation Program requires that the total error be assessed for bioassay measurements. A previous evaluation of the errors associated with the ICP/MS measurement of uranium demonstrated a {+-} 9.6% error in the range of 0.01 to 0.02 {micro}g/l. However, the propagation of total error for concentrations above and below this level have heretofore been undetermined. This document is an evaluation of the errors associated with the current LLNL ICP/MS method for a more expanded range of uranium concentrations.

Hickman, D P; Maclean, S; Shepley, D; Shaw, R K

2001-07-01T23:59:59.000Z

244

Quantum states characterization for the zero-error capacity  

E-Print Network (OSTI)

The zero-error capacity of quantum channels was defined as the least upper bound of rates at which classical information can be transmitted through a quantum channel with probability of error equal to zero. This paper investigates some properties of input states and measurements used to attain the quantum zero-error capacity. We start by reformulating the problem of finding the zero-error capacity in the language of graph theory. This alternative definition is used to prove that the zero-error capacity of any quantum channel can be reached by using tensor products of pure states as channel inputs, and projective measurements in the channel output. We conclude by presenting an example that illustrates our results.

Rex A C Medeiros; Romain Alleaume; Gerard Cohen; Francisco M. de Assis

2006-11-03T23:59:59.000Z

245

Quality Reference Samples  

Science Conference Proceedings (OSTI)

Peer-reviewed fats and oils related performance-based control samples for lab quality assurance and quality control. Quality Reference Samples Certified Reference Materials (CRM) aocs certified Certified Reference Materials chemists CRM fat fats lab labo

246

September 2004 Water Sampling  

Office of Legacy Management (LM)

information documented on the field data sheets? Yes 18. Was the presence or absence of ice in the cooler documented at every sample location? NA Sample chilling was not required....

247

September 2004 Water Sampling  

Office of Legacy Management (LM)

Old and New Rifle, Old and New Rifle, Colorado, Processing Sites August 2013 LMS/RFN/RFO/S00613 This page intentionally left blank U.S. Department of Energy DVP-June 2013, Rifle, Colorado August 2013 RIN 13065380 Page i Contents Sampling Event Summary ...............................................................................................................1 Sample Location Map, New Rifle, Colorado, Processing Site ........................................................5 Sample Location Map, Old Rifle, Colorado, Processing Site ..........................................................6 Data Assessment Summary ..............................................................................................................7 Water Sampling Field Activities Verification Checklist .............................................................9

248

September 2004 Water Sampling  

NLE Websites -- All DOE Office Websites (Extended Search)

3 3 Groundwater and Surface Water Sampling at the Tuba City, Arizona, Disposal Site November 2013 LMS/TUB/S00813 This page intentionally left blank U.S. Department of Energy DVP-August 2013, Tuba City, Arizona November 2013 RIN 13085553 Page i Contents Sampling Event Summary ...............................................................................................................1 Tuba City, Arizona, Disposal Site, Sample Location Map ..............................................................7 Data Assessment Summary ..............................................................................................................9 Water Sampling Field Activities Verification Checklist ...........................................................11

249

September 2004 Water Sampling  

NLE Websites -- All DOE Office Websites (Extended Search)

and October 2013 and October 2013 Groundwater Sampling at the Bluewater, New Mexico, Disposal Site December 2013 LMS/BLU/S00813 This page intentionally left blank U.S. Department of Energy DVP-August and October 2013, Bluewater, New Mexico December 2013 RIN 13085537 and 13095651 Page i Contents Sampling Event Summary ...............................................................................................................1 Private Wells Sampled August 2013 and October 2013, Bluewater, NM, Disposal Site ................3 Data Assessment Summary ..............................................................................................................5 Water Sampling Field Activities Verification Checklist .............................................................7

250

September 2004 Water Sampling  

Office of Legacy Management (LM)

3 3 Groundwater and Surface Water Sampling at the Slick Rock East and West, Colorado, Processing Sites November 2013 LMS/SRE/SRW/S0913 This page intentionally left blank U.S. Department of Energy DVP-September 2013, Slick Rock, Colorado November 2013 RIN 13095593 Page i Contents Sampling Event Summary ...............................................................................................................1 Slick Rock East and West, Colorado, Processing Sites, Sample Location Map .............................5 Data Assessment Summary ..............................................................................................................7 Water Sampling Field Activities Verification Checklist .............................................................9

251

September 2004 Water Sampling  

Office of Legacy Management (LM)

Riverton, Wyoming, Riverton, Wyoming, Processing Site September 2013 LMS/RVT/S00613 This page intentionally left blank U.S. Department of Energy DVP-June 2013, Riverton, Wyoming September 2013 RIN 13065379 Page i Contents Sampling Event Summary ...............................................................................................................1 Riverton, Wyoming, Processing Site, Sample Location Map .........................................................5 Data Assessment Summary ..............................................................................................................7 Water Sampling Field Activities Verification Checklist .............................................................9 Laboratory Performance Assessment ........................................................................................11

252

Sampling community structure  

Science Conference Proceedings (OSTI)

We propose a novel method, based on concepts from expander graphs, to sample communities in networks. We show that our sampling method, unlike previous techniques, produces subgraphs representative of community structure in the original network. These ... Keywords: clustering, community detection, complex networks, graphs, sampling, social networks

Arun S. Maiya; Tanya Y. Berger-Wolf

2010-04-01T23:59:59.000Z

253

Enhancing Text Retrieval by Using Advanced Stylistic Techniques  

Science Conference Proceedings (OSTI)

Text retrieval techniques have long focused on the topic of texts rather than the pragmatic role they play per se. In this article, we address two other aspects in text processing that could enhance text retrieval: (a) the detection of functional style ... Keywords: empirical methods, functional style, natural language processing, pragmatic aspects, text retrieval, topic disambiguation, writer"s attitude

S. E. Michos; N. Fakotakis; G. Kokkinakis

1999-10-01T23:59:59.000Z

254

Learning to summarize web image and text mutually  

Science Conference Proceedings (OSTI)

We consider the problem of learning to summarize images by text and visualize text utilizing images, which we call Mutual-Summarization. We divide the web image-text data space into three subspaces, namely pure image space (PIS), pure text space ... Keywords: cross-media retrieval, image-text joint space, multiple kernel learning, mutual-summarization, topic model

Piji Li; Jun Ma; Shuai Gao

2012-06-01T23:59:59.000Z

255

A large scale study of text-messaging use  

Science Conference Proceedings (OSTI)

Text messaging has become a popular form of communication with mobile phones worldwide. We present findings from a large scale text messaging study of 70 university students in the United States. We collected almost 60, 000 text messages over a period ... Keywords: large-scale study, mobile device, short message service, sms, text messaging, texting

Agathe Battestini; Vidya Setlur; Timothy Sohn

2010-09-01T23:59:59.000Z

256

Hidden Error Variance Theory. Part II: An Instrument That Reveals Hidden Error Variance Distributions from Ensemble Forecasts and Observations  

Science Conference Proceedings (OSTI)

In Part I of this study, a model of the distribution of true error variances given an ensemble variance is shown to be defined by six parameters that also determine the optimal weights for the static and flow-dependent parts of hybrid error ...

Craig H. Bishop; Elizabeth A. Satterfield; Kevin T. Shanley

2013-05-01T23:59:59.000Z

257

A phrase-based statistical model for SMS text normalization  

Science Conference Proceedings (OSTI)

Short Messaging Service (SMS) texts behave quite differently from normal written texts and have some very special phenomena. To translate SMS texts, traditional approaches model such irregularities directly in Machine Translation (MT). However, such ...

AiTi Aw; Min Zhang; Juan Xiao; Jian Su

2006-07-01T23:59:59.000Z

258

Text of The Solubility of Silica in Calcium Ferrite Slags  

Science Conference Proceedings (OSTI)

To successfully use lime flux, the dissolution of silica in calcium-ferrite slags must ... samples were chemically analyzed by standard methods for calcium, silica, ...

259

Fuel Cell Technologies Office: Hydrogen Safety (Text Alternative Version)  

NLE Websites -- All DOE Office Websites (Extended Search)

Safety (Text Safety (Text Alternative Version) to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Safety (Text Alternative Version) on Facebook Tweet about Fuel Cell Technologies Office: Hydrogen Safety (Text Alternative Version) on Twitter Bookmark Fuel Cell Technologies Office: Hydrogen Safety (Text Alternative Version) on Google Bookmark Fuel Cell Technologies Office: Hydrogen Safety (Text Alternative Version) on Delicious Rank Fuel Cell Technologies Office: Hydrogen Safety (Text Alternative Version) on Digg Find More places to share Fuel Cell Technologies Office: Hydrogen Safety (Text Alternative Version) on AddThis.com... Publications Program Publications Technical Publications Educational Publications Newsletter Program Presentations Multimedia Conferences & Meetings

260

Fuel Cell Technologies Office: Hydrogen Cars (Text Alternative Version)  

NLE Websites -- All DOE Office Websites (Extended Search)

Cars (Text Cars (Text Alternative Version) to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Cars (Text Alternative Version) on Facebook Tweet about Fuel Cell Technologies Office: Hydrogen Cars (Text Alternative Version) on Twitter Bookmark Fuel Cell Technologies Office: Hydrogen Cars (Text Alternative Version) on Google Bookmark Fuel Cell Technologies Office: Hydrogen Cars (Text Alternative Version) on Delicious Rank Fuel Cell Technologies Office: Hydrogen Cars (Text Alternative Version) on Digg Find More places to share Fuel Cell Technologies Office: Hydrogen Cars (Text Alternative Version) on AddThis.com... Publications Program Publications Technical Publications Educational Publications Newsletter Program Presentations Multimedia Conferences & Meetings

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version)  

NLE Websites -- All DOE Office Websites (Extended Search)

Storage (Text Storage (Text Alternative Version) to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Facebook Tweet about Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Twitter Bookmark Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Google Bookmark Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Delicious Rank Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Digg Find More places to share Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on AddThis.com... Publications Program Publications Technical Publications Educational Publications Newsletter Program Presentations Multimedia Conferences & Meetings

262

Building Technologies Office: Home Energy Score Update (text...  

NLE Websites -- All DOE Office Websites (Extended Search)

Update (text version) to someone by E-mail Share Building Technologies Office: Home Energy Score Update (text version) on Facebook Tweet about Building Technologies Office: Home...

263

Supporting Text Retrieval Query Formulation In Software Engineering.  

E-Print Network (OSTI)

??The text found in software artifacts captures important information. Text Retrieval (TR) techniques have been successfully used to leverage this information. Despite their advantages, the… (more)

Haiduc, Sonia Cristina

2013-01-01T23:59:59.000Z

264

Clean Cities: National Clean Fleets Partnership Video (Text Version...  

NLE Websites -- All DOE Office Websites (Extended Search)

Clean Fleets Partnership Video (Text Version) to someone by E-mail Share Clean Cities: National Clean Fleets Partnership Video (Text Version) on Facebook Tweet about Clean...

265

FRamework Assessing Notorious Contributing Influences for Error (FRANCIE): Perspective on Taxonomy Development to Support Error Reporting and Analysis  

Science Conference Proceedings (OSTI)

Beginning in the 1980s a primary focus of human reliability analysis was estimation of human error probabilities. However, detailed qualitative modeling with comprehensive representation of contextual variables often was lacking. This was likely due to the lack of comprehensive error and performance shaping factor taxonomies, and the limited data available on observed error rates and their relationship to specific contextual variables. In the mid 90s Boeing, America West Airlines, NASA Ames Research Center and INEEL partnered in a NASA sponsored Advanced Concepts grant to: assess the state of the art in human error analysis, identify future needs for human error analysis, and develop an approach addressing these needs. Identified needs included the need for a method to identify and prioritize task and contextual characteristics affecting human reliability. Other needs identified included developing comprehensive taxonomies to support detailed qualitative modeling and to structure meaningful data collection efforts across domains. A result was the development of the FRamework Assessing Notorious Contributing Influences for Error (FRANCIE) with a taxonomy for airline maintenance tasks. The assignment of performance shaping factors to generic errors by experts proved to be valuable to qualitative modeling. Performance shaping factors and error types from such detailed approaches can be used to structure error reporting schemes. In a recent NASA Advanced Human Support Technology grant FRANCIE was refined, and two new taxonomies for use on space missions were developed. The development, sharing, and use of error taxonomies, and the refinement of approaches for increased fidelity of qualitative modeling is offered as a means to help direct useful data collection strategies.

Lon N. Haney; David I. Gertman

2003-04-01T23:59:59.000Z

266

Deriving Human-Error Tolerance Requirements from Tasks  

E-Print Network (OSTI)

In this paper we show how an understanding of a dynamic system from the point of view of the tasks that it supports and an understanding of human error can guide a process of deriving human error tolerance requirements. Our aim is to provide a means whereby, rather than relying on training as a means of improving operator performance, designers may develop interactive systems with human error tolerance in mind. We extend an established methodology (SHARP) by employing a software engineering notation (CSP) that provides a bridge between a theory of error and the practice of design and implementation. In this paper we outline approaches to human error, describe a task notation based on CSP which helps us to elicit requirements on human-error tolerance expressed as functional properties of the system. The technique is used to analyse an engine fire recovery procedure in order to derive human error tolerance requirements. 1 Introduction Walk-up-and-use systems, such as automated teller ma...

Peter Wright; Bob Fields; Michael Harrison

1994-01-01T23:59:59.000Z

267

Slope Error Measurement Tool for Solar Parabolic Trough Collectors: Preprint  

DOE Green Energy (OSTI)

The National Renewable Energy Laboratory (NREL) has developed an optical measurement tool for parabolic solar collectors that measures the combined errors due to absorber misalignment and reflector slope error. The combined absorber alignment and reflector slope errors are measured using a digital camera to photograph the reflected image of the absorber in the collector. Previous work using the image of the reflection of the absorber finds the reflector slope errors from the reflection of the absorber and an independent measurement of the absorber location. The accuracy of the reflector slope error measurement is thus dependent on the accuracy of the absorber location measurement. By measuring the combined reflector-absorber errors, the uncertainty in the absorber location measurement is eliminated. The related performance merit, the intercept factor, depends on the combined effects of the absorber alignment and reflector slope errors. Measuring the combined effect provides a simpler measurement and a more accurate input to the intercept factor estimate. The minimal equipment and setup required for this measurement technique make it ideal for field measurements.

Stynes, J. K.; Ihas, B.

2012-04-01T23:59:59.000Z

268

Sampling diffusive transition paths  

SciTech Connect

We address the problem of sampling double-ended diffusive paths. The ensemble of paths is expressed using a symmetric version of the Onsager-Machlup formula, which only requires evaluation of the force field and which, upon direct time discretization, gives rise to a symmetric integrator that is accurate to second order. Efficiently sampling this ensemble requires avoiding the well-known stiffness problem associated with sampling infinitesimal Brownian increments of the path, as well as a different type of stiffness associated with sampling the coarse features of long paths. The fine-features sampling stiffness is eliminated with the use of the fast sampling algorithm (FSA), and the coarse-feature sampling stiffness is avoided by introducing the sliding and sampling (S&S) algorithm. A key feature of the S&S algorithm is that it enables massively parallel computers to sample diffusive trajectories that are long in time. We use the algorithm to sample the transition path ensemble for the structural interconversion of the 38-atom Lennard-Jones cluster at low temperature.

F. Miller III, Thomas; Predescu, Cristian

2006-10-12T23:59:59.000Z

269

Wind Power Forecasting Error Distributions: An International Comparison; Preprint  

DOE Green Energy (OSTI)

Wind power forecasting is expected to be an important enabler for greater penetration of wind power into electricity systems. Because no wind forecasting system is perfect, a thorough understanding of the errors that do occur can be critical to system operation functions, such as the setting of operating reserve levels. This paper provides an international comparison of the distribution of wind power forecasting errors from operational systems, based on real forecast data. The paper concludes with an assessment of similarities and differences between the errors observed in different locations.

Hodge, B. M.; Lew, D.; Milligan, M.; Holttinen, H.; Sillanpaa, S.; Gomez-Lazaro, E.; Scharff, R.; Soder, L.; Larsen, X. G.; Giebel, G.; Flynn, D.; Dobschinski, J.

2012-09-01T23:59:59.000Z

270

The State of the Art in Text Filtering  

Science Conference Proceedings (OSTI)

This paper develops a conceptual framework for text filtering practice and research, and reviews present practice in the field. Text filtering is an information seeking process in which documents are selected from a dynamic text stream to satisfy ... Keywords: Selective Dissemination of Information, collaborative, content-based, current awareness, information filtering, recommender systems., social filtering, text retrieval

Douglas W. Oard

1997-03-01T23:59:59.000Z

271

Fuel Cell Technologies Office: Hydrogen Refueling Protocols Webinar (Text  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Refueling Hydrogen Refueling Protocols Webinar (Text Version) to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Refueling Protocols Webinar (Text Version) on Facebook Tweet about Fuel Cell Technologies Office: Hydrogen Refueling Protocols Webinar (Text Version) on Twitter Bookmark Fuel Cell Technologies Office: Hydrogen Refueling Protocols Webinar (Text Version) on Google Bookmark Fuel Cell Technologies Office: Hydrogen Refueling Protocols Webinar (Text Version) on Delicious Rank Fuel Cell Technologies Office: Hydrogen Refueling Protocols Webinar (Text Version) on Digg Find More places to share Fuel Cell Technologies Office: Hydrogen Refueling Protocols Webinar (Text Version) on AddThis.com... Publications Program Publications Technical Publications Educational Publications

272

Fuel Cell Technologies Office: Hydrogen Delivery and Fueling (Text  

NLE Websites -- All DOE Office Websites (Extended Search)

Delivery and Delivery and Fueling (Text Alternative Version) to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Delivery and Fueling (Text Alternative Version) on Facebook Tweet about Fuel Cell Technologies Office: Hydrogen Delivery and Fueling (Text Alternative Version) on Twitter Bookmark Fuel Cell Technologies Office: Hydrogen Delivery and Fueling (Text Alternative Version) on Google Bookmark Fuel Cell Technologies Office: Hydrogen Delivery and Fueling (Text Alternative Version) on Delicious Rank Fuel Cell Technologies Office: Hydrogen Delivery and Fueling (Text Alternative Version) on Digg Find More places to share Fuel Cell Technologies Office: Hydrogen Delivery and Fueling (Text Alternative Version) on AddThis.com... Publications Program Publications

273

September 2004 Water Sampling  

Office of Legacy Management (LM)

Green River, Utah, Disposal Site Green River, Utah, Disposal Site August 2013 LMS/GRN/S00613 This page intentionally left blank U.S. Department of Energy DVP-June 2013, Green River, Utah August 2013 RIN 13065402 Page i Contents Sampling Event Summary ...............................................................................................................1 Data Assessment Summary ..............................................................................................................7 Water Sampling Field Activities Verification Checklist .............................................................9 Laboratory Performance Assessment ........................................................................................11 Sampling Quality Control Assessment ......................................................................................18

274

FANS - Sample Change  

Science Conference Proceedings (OSTI)

... result of neutrons with incident energies higher than ... between the sample position and the detector bank. ... 60 to 300 seconds per energy point and ...

275

September 2004 Water Sampling  

Office of Legacy Management (LM)

field procedures? Yes List any Program Directives or other documents, SOPs, instructions. Work Order Letter dated May 1, 2013. Program Directive SHL 2013 01. 2. Were the sampling...

276

FANS - Sample Change  

Science Conference Proceedings (OSTI)

... This is achieved by placing a cadmium shield between the sample position and the detector bank. In order to place the ...

277

Beacon Project - Unpredictable Sampling  

Science Conference Proceedings (OSTI)

... or undetected tampering), with the random number generator used for sampling can lead to erroneous estimates of the percentage of faulty parts. ...

2013-07-25T23:59:59.000Z

278

Error 401 on upload? | OpenEI Community  

Open Energy Info (EERE)

Error 401 on upload? Error 401 on upload? Home > Groups > Databus Hi, I get an HTTP error 401 when trying to upload data. My first thought is that this is related to the robot's credentials, but I've checked that carefully; robot is in a group with access to the table, etc. Is there something else that can cause error 401? thanks, Submitted by Hopcroft on 23 September, 2013 - 13:02 1 answer Points: 0 uploading data using the GUI (csv upload button) or uploading data using json? What type of access does the group have to the database? Try adding the robot to the group directly as well as a work around and let me know what happens(we have people using the robots but perhaps there is an issue somewhere). Is your user and your api key working at all? (your user key is in the help section System Access on your version of databus). Deanhiller

279

Error 401 on upload? | OpenEI Community  

Open Energy Info (EERE)

Error 401 on upload? Error 401 on upload? Home > Groups > Databus Hi, I get an HTTP error 401 when trying to upload data. My first thought is that this is related to the robot's credentials, but I've checked that carefully; robot is in a group with access to the table, etc. Is there something else that can cause error 401? thanks, Submitted by Hopcroft on 23 September, 2013 - 13:02 1 answer Points: 0 uploading data using the GUI (csv upload button) or uploading data using json? What type of access does the group have to the database? Try adding the robot to the group directly as well as a work around and let me know what happens(we have people using the robots but perhaps there is an issue somewhere). Is your user and your api key working at all? (your user key is in the help section System Access on your version of databus). Deanhiller

280

Representation Error of Oceanic Observations for Data Assimilation  

Science Conference Proceedings (OSTI)

A simple approach to the estimation of representation error (RE) of sea level (?), temperature (T), and salinity (S) observations for ocean data assimilation is described. It is assumed that the main source of RE is due to unresolved processes ...

Peter R. Oke; Pavel Sakov

2008-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Weather Regimes and Forecast Errors in the Pacific Northwest  

Science Conference Proceedings (OSTI)

Despite overall improvements in numerical weather prediction and data assimilation, large short-term forecast errors of sea level pressure and 2-m temperature still occur. This is especially true for the west coast of North America where short-...

Lynn A. McMurdie; Joseph H. Casola

2009-06-01T23:59:59.000Z

282

Wind Power Forecasting Error Distributions over Multiple Timescales: Preprint  

DOE Green Energy (OSTI)

In this paper, we examine the shape of the persistence model error distribution for ten different wind plants in the ERCOT system over multiple timescales. Comparisons are made between the experimental distribution shape and that of the normal distribution.

Hodge, B. M.; Milligan, M.

2011-03-01T23:59:59.000Z

283

EVAL: Utilizing processors with variation-induced timing errors  

Science Conference Proceedings (OSTI)

Parameter variation in integrated circuits causes sections of a chip to be slower than others. If, to prevent any resulting timing errors, we design processors for worst-case parameter values, we may lose substantial performance. An alternate approach ...

Smruti Sarangi; Brian Greskamp; Abhishek Tiwari; Josep Torrellas

2008-11-01T23:59:59.000Z

284

Stratospheric Analysis and Forecast Errors Using Hybrid and Sigma Coordinates  

Science Conference Proceedings (OSTI)

Past investigations have documented large divergent wind anomalies in stratospheric reanalyses over steep terrain, which were attributed to discretization errors produced by the terrain-following (sigma) vertical coordinate in the forecast model. ...

Stephen D. Eckermann; John P. McCormack; Jun Ma; Timothy F. Hogan; Katherine A. Zawdie

285

US-LHC IR magnet error analysis and compensation  

SciTech Connect

This paper studies the impact of the insertion-region (IR) magnet field errors on LHC collision performance. Compensation schemes including magnet orientation optimization, body-end compensation, tuning shims, and local nonlinear correction are shown to be highly effective.

Wei, J.; Ptitsin, V.; Pilat, F.; Tepikian, S. [Brookhaven National Lab., Upton, NY (United States); Gelfand, N.; Wan, W.; Holt, J. [Fermi National Accelerator Lab., Batavia, IL (United States)

1998-08-01T23:59:59.000Z

286

Underestimating Costs in Public Works Projects: Error or Lie?  

E-Print Network (OSTI)

J. M. (1964). Errors in project cost estimates. Indian Eco-leave out important project costs and risks in order to makeclearly, comparing actual project costs with esti- mated

Flyvbjerg, Bent; Holm, Mette Skamris; Buhl, Søren

2006-01-01T23:59:59.000Z

287

A Preliminary Investigation of Temperature Errors in Operational Forecasting Models  

Science Conference Proceedings (OSTI)

Temperatures taken from model output (FOUS reports) routinely transmitted by the National Centers for Environmental Prediction are tabulated to determine errors during three months in the summer of 1996. These short-term model forecasts are ...

Frank P. Colby Jr.

1998-03-01T23:59:59.000Z

288

Probabilistic state estimation in regimes of nonlinear error growth  

E-Print Network (OSTI)

State estimation, or data assimilation as it is often called, is a key component of numerical weather prediction (NWP). Nearly all implementable methods of state estimation suitable for NWP are forced to assume that errors ...

Lawson, W. Gregory, 1975-

2005-01-01T23:59:59.000Z

289

Toward Estimating Climatic Trends in SST. Part II: Random Errors  

Science Conference Proceedings (OSTI)

Random observational errors for sea surface temperature (SST) are estimated using merchant ship reports from the International Comprehensive Ocean–Atmosphere Data Set (ICOADS) for the period of 1970–97. A statistical technique, semivariogram ...

Elizabeth C. Kent; Peter G. Challenor

2006-03-01T23:59:59.000Z

290

A Cautionary Note on the Use of Error Bars  

Science Conference Proceedings (OSTI)

Climate studies often involve comparisons between estimates of some parameter derived from different observed and/or model-generated datasets. It is common practice to present estimates of two or more statistical quantities with error bars about ...

John R. Lanzante

2005-09-01T23:59:59.000Z

291

An Error Analysis of Atlantic Tropical Cyclone Track Guidance Models  

Science Conference Proceedings (OSTI)

Mean track forecast errors over the 6-yr period 1983–88 are compared for four tropical cyclone-track forecast models in use at the National Hurricane Center (NHC). The model types represented are statistical, statistical-dynamical, barctropic-...

Mark Demaria; Miles B. Lawrence; James T. Kroll

1990-03-01T23:59:59.000Z

292

Some Characteristics of Time Interpolation Errors for Fluid Flows  

Science Conference Proceedings (OSTI)

The size of errors due to linear time interpolation varies parabolically with a maximum at the center of the interpolation interval in most of the cases examined here. These cases include simple situations that are analyzed analytically and ...

Ross N. Hoffman; S. Mark Leidner

2010-07-01T23:59:59.000Z

293

Optimal complexity correction of correlated errors in the surface code  

E-Print Network (OSTI)

The surface code is designed to suppress errors in quantum computing hardware and currently offers the most believable pathway to large-scale quantum computation. The surface code requires a 2-D array of nearest-neighbor coupled qubits that are capable of implementing a universal set of gates with error rates below approximately 1%, requirements compatible with experimental reality. Consequently, a number of authors are attempting to squeeze additional performance out of the surface code. We describe an optimal complexity error suppression algorithm, parallelizable to O(1) given constant computing resources per unit area, and provide evidence that this algorithm exploits correlations in the error models of each gate in an asymptotically optimal manner.

Austin G. Fowler

2013-10-02T23:59:59.000Z

294

Correcting Errors in Streamflow Forecast Ensemble Mean and Spread  

Science Conference Proceedings (OSTI)

When hydrological models are used for probabilistic streamflow forecasting in the Ensemble Streamflow Prediction (ESP) framework, the deterministic components of the approach can lead to errors in the estimation of forecast uncertainty, as ...

Andrew W. Wood; John C. Schaake

2008-02-01T23:59:59.000Z

295

Air Temperature Measurement Errors in Naturally Ventilated Radiation Shields  

Science Conference Proceedings (OSTI)

Two sources of systematic errors are considered for estimating air temperature. The first source is ambiguity of the definition of the standardized measurement height over vegetated surfaces of varying heights. Without such a standardization, ...

Reina Nakamura; L. Mahrt

2005-07-01T23:59:59.000Z

296

Evaluating Error Propagation in Coupled Land–Atmosphere Models  

Science Conference Proceedings (OSTI)

This study examines how land-use errors from the Land Transformation Model (LTM) propagate through to climate as simulated by the Regional Atmospheric Model System (RAMS). The authors conducted five simulations of regional climate over East Africa:...

Bryan Pijanowski; Nathan Moore; Dasaraden Mauree; Dev Niyogi

2011-10-01T23:59:59.000Z

297

Singular Vector Calculations with an Analysis Error Variance Metric  

Science Conference Proceedings (OSTI)

Singular vectors of the navy's global forecast model are calculated using an initial norm consistent with an estimate of analysis error variance provided by the Naval Research Laboratory's (NRL) Atmospheric Variational Data Assimilation System (...

Ronald Gelaro; Thomas Rosmond; Roger Daley

2002-05-01T23:59:59.000Z

298

Vertical Correlation Functions for Temperature and Relative Humidity Errors  

Science Conference Proceedings (OSTI)

This article gives the details and results of an investigation into the properties of the temperature and relative humidity errors from the Navy Operational Global Atmospheric Prediction System for a 4-month period from March to June 1998. The ...

Richard Franke; Edward Barker

2000-12-01T23:59:59.000Z

299

Servo control booster system for minimizing following error  

DOE Patents (OSTI)

A closed-loop feedback-controlled servo system is disclosed which reduces command-to-response error to the system's position feedback resolution least increment, .DELTA.S.sub.R, on a continuous real-time basis for all operating speeds. The servo system employs a second position feedback control loop on a by exception basis, when the command-to-response error .gtoreq..DELTA.S.sub.R, to produce precise position correction signals. When the command-to-response error is less than .DELTA.S.sub.R, control automatically reverts to conventional control means as the second position feedback control loop is disconnected, becoming transparent to conventional servo control means. By operating the second unique position feedback control loop used herein at the appropriate clocking rate, command-to-response error may be reduced to the position feedback resolution least increment. The present system may be utilized in combination with a tachometer loop for increased stability.

Wise, William L. (Mountain View, CA)

1985-01-01T23:59:59.000Z

300

Measure of Diffusion Model Error for Thermal Radiation Transport  

E-Print Network (OSTI)

The diffusion approximation to the equation of transfer (Boltzmann transport equation) is usually applied to media where scattering dominates the interactions. Diffusion approximation helps in significant savings in terms of code complexity and computational time. However, this approximation often has significant error. Error due to the inherent nature of a physics model is called model error. Information about the model error associated with the diffusion approximation is clearly desirable. An indirect measure of model error is a quantity that is related in some way to the error but not equal to the error. In general, indirect measures of error are expected to be less costly than direct measures. Perhaps the most well-known indirect measure of the diffusion model error is the variable-Eddington tensor. This tensor provides a great deal of information about the angular dependence of the angular intensity solution, but it is not always simple to interpret. We define a new indirect measure of the diffusion model error called the diffusion model error source (DME source). When this DME source is added to the diffusion equation, the transport solution for the angular-integrated intensity is obtained. In contrast to the variable-Eddington tensor, our DME source is a scalar that is conceptually easy to interpret. In addition to defining the DME source analytically, we show how to generate this source numerically relative to the Sn radiative transfer equations with linear-discontinuous spatial discretization. This numerical source is computationally tested and shown to reproduce the Sn solution for a number of problems. Our radiative transfer model solves a coupled, time dependent, multi-frequency, 1-D slab equation and material heat transfer equation. We then use diffusion approximation to solve the same problem. The difference due to this approximation can be modelled by a “diffusion source”. The diffusion source is defined as an amount of inhomogeneous source that, when added to a diffusion calculation, gives a solution for the angle-integrated intensity that is equal to the transport solution.

Kumar, Akansha

2013-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Human Operational Errors Involving Control, Relay, and Auxiliary Equipment  

Science Conference Proceedings (OSTI)

This report describes the objectives, information gathering and analysis, and findings of a research effort related to human operational errors involving control, relay, and auxiliary equipment. This research is conducted by the Switching Safety and Reliability Project of EPRI8217s Substations Program. The project consists of three separate studies: 8226 an analysis of relay-related incidents attributed to human errors, 8226 a compilation of work practices when planning and performing work on relays, an...

2006-12-08T23:59:59.000Z

302

Using doppler radar images to estimate aircraft navigational heading error  

SciTech Connect

A yaw angle error of a motion measurement system carried on an aircraft for navigation is estimated from Doppler radar images captured using the aircraft. At least two radar pulses aimed at respectively different physical locations in a targeted area are transmitted from a radar antenna carried on the aircraft. At least two Doppler radar images that respectively correspond to the at least two transmitted radar pulses are produced. These images are used to produce an estimate of the yaw angle error.

Doerry, Armin W. (Albuquerque, NM); Jordan, Jay D. (Albuquerque, NM); Kim, Theodore J. (Albuquerque, NM)

2012-07-03T23:59:59.000Z

303

Determining mutant spectra of three RNA viral samples using ultra-deep sequencing  

SciTech Connect

RNA viruses have extremely high mutation rates that enable the virus to adapt to new host environments and even jump from one species to another. As part of a viral transmission study, three viral samples collected from naturally infected animals were sequenced using Illumina paired-end technology at ultra-deep coverage. In order to determine the mutant spectra within the viral quasispecies, it is critical to understand the sequencing error rates and control for false positive calls of viral variants (point mutantations). I will estimate the sequencing error rate from two control sequences and characterize the mutant spectra in the natural samples with this error rate.

Chen, H

2012-06-06T23:59:59.000Z

304

Sampling system and method  

DOE Patents (OSTI)

The present disclosure provides an apparatus and method for coupling conduit segments together. A first pump obtains a sample and transmits it through a first conduit to a reservoir accessible by a second pump. The second pump further conducts the sample from the reservoir through a second conduit.

Decker, David L.; Lyles, Brad F.; Purcell, Richard G.; Hershey, Ronald Lee

2013-04-16T23:59:59.000Z

305

Clean Cities: Clean Cities 20th Anniversary Capabilities Video (Text  

NLE Websites -- All DOE Office Websites (Extended Search)

Anniversary Anniversary Capabilities Video (Text Version) to someone by E-mail Share Clean Cities: Clean Cities 20th Anniversary Capabilities Video (Text Version) on Facebook Tweet about Clean Cities: Clean Cities 20th Anniversary Capabilities Video (Text Version) on Twitter Bookmark Clean Cities: Clean Cities 20th Anniversary Capabilities Video (Text Version) on Google Bookmark Clean Cities: Clean Cities 20th Anniversary Capabilities Video (Text Version) on Delicious Rank Clean Cities: Clean Cities 20th Anniversary Capabilities Video (Text Version) on Digg Find More places to share Clean Cities: Clean Cities 20th Anniversary Capabilities Video (Text Version) on AddThis.com... Goals & Accomplishments Clean Cities 20th Anniversary Partnerships Hall of Fame Contacts Clean Cities 20th Anniversary Capabilities Video (Text Version)

306

Bootstrapping biomedical ontologies for scientific text using NELL  

Science Conference Proceedings (OSTI)

We describe an open information extraction system for biomedical text based on NELL (the Never-Ending Language Learner) (Carlson et al., 2010), a system designed for extraction from Web text. NELL uses a coupled semi-supervised bootstrapping approach ...

Dana Movshovitz-Attias; William W. Cohen

2012-06-01T23:59:59.000Z

307

NREL: About NREL - NREL Overview Video (Text Version)  

NLE Websites -- All DOE Office Websites (Extended Search)

NREL Overview Video (Text Version) This is a text only version for the NREL Overview video. Learn more about NREL here on the NREL Overview page. Dr. Dan Arvizu, Laboratory...

308

Solid-State Lighting: Text-Alternative Version: LED Replacements...  

NLE Websites -- All DOE Office Websites (Extended Search)

Text-Alternative Version: LED Replacements for Linear Fluorescent Lamps to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: LED Replacements for Linear...

309

Financial News Mining: Monitoring Continuous Streams of Text  

Science Conference Proceedings (OSTI)

This paper addresses the problem of extracting, analyzing and synthesizing valuable information from continuous text streams covering financial information. A text mining framework combining elements from information retrieval, information extraction ...

Jon Espen Ingvaldsen; Jon Atle Gulla; Tarjei Laegreid; Paul Christian Sandal

2006-12-01T23:59:59.000Z

310

2003 CBECS Sample Design  

U.S. Energy Information Administration (EIA) Indexed Site

Technical Information > Sample Design Technical Information > Sample Design How the Survey Was Conducted 2003 Commercial Buildings Energy Consumption Survey: Sample Design Introduction The Commercial Buildings Energy Consumption Survey (CBECS) is conducted quadrennially by the Energy Information Administration (EIA) to provide basic statistical information about energy consumption and expenditures in U.S. commercial buildings and information about energy-related characteristics of these buildings. The survey is based upon a sample of commercial buildings selected according to the sample design requirements described below. A “building,” as opposed to an “establishment,” is the basic unit of analysis for the CBECS because the building is the energy-consuming unit. The 2003 CBECS was the eighth survey conducted since 1979

311

Sample Changes and Issues  

U.S. Energy Information Administration (EIA) Indexed Site

Sample and Model Issues Sample and Model Issues Summary Our comprehensive review of the EIA 914 has confirmed that discrepancies can arise between estimates for December of one year and January of the next. These are most evident for Texas estimates between December 2008 and January 2009. Reports now available from HPDI show that production for all the companies we sampled in both 2008 and 2009 rose by about 60 million cubic feet per day (MMcf/d) in January and that total production in Texas rose by a similar amount. Our estimate was a decrease of 360 MMcf/d. Why the difference? Computationally, EIA-914 estimates depend on two factors: * Reports from the companies in the survey sample * An expansion factor to estimate total production from the sample's reported

312

Biological sample collector  

DOE Patents (OSTI)

A biological sample collector is adapted to a collect several biological samples in a plurality of filter wells. A biological sample collector may comprise a manifold plate for mounting a filter plate thereon, the filter plate having a plurality of filter wells therein; a hollow slider for engaging and positioning a tube that slides therethrough; and a slide case within which the hollow slider travels to allow the tube to be aligned with a selected filter well of the plurality of filter wells, wherein when the tube is aligned with the selected filter well, the tube is pushed through the hollow slider and into the selected filter well to sealingly engage the selected filter well and to allow the tube to deposit a biological sample onto a filter in the bottom of the selected filter well. The biological sample collector may be portable.

Murphy, Gloria A. (French Camp, CA)

2010-09-07T23:59:59.000Z

313

Sample push out fixture  

DOE Patents (OSTI)

This invention generally relates to the remote removal of pelletized samples from cylindrical containment capsules. V-blocks are used to receive the samples and provide guidance to push out rods. Stainless steel liners fit into the v-channels on the v-blocks which permits them to be remotely removed and replaced or cleaned to prevent cross contamination between capsules and samples. A capsule holder securely holds the capsule while allowing manual up/down and in/out movement to align each sample hole with the v-blocks. Both end sections contain identical v-blocks; one that guides the drive out screw and rods or manual push out rods and the other to receive the samples as they are driven out of the capsule.

Biernat, John L.

2000-02-22T23:59:59.000Z

314

Text REtrieval Conference (TREC) Call to TREC 2014  

Science Conference Proceedings (OSTI)

... The Text Retrieval Conference (TREC) workshop series encourages research in information retrieval and related applications by providing a large ...

315

Language pyramid and multi-scale text analysis  

Science Conference Proceedings (OSTI)

The classical Bag-of-Word (BOW) model represents a document as a histogram of word occurrence, losing the spatial information that is invaluable for many text analysis tasks. In this paper, we present the Language Pyramid (LaP) model, which ... Keywords: bag of word, language pyramid, multi-scale language models, multi-scale text analysis, multi-scale text kernel, text spatial contents modeling

Shuang-Hong Yang; Hongyuan Zha

2010-10-01T23:59:59.000Z

316

Context and Structure in Automated Full-Text Information Access  

E-Print Network (OSTI)

Context and Structure in Automated Full-Text Information Access Marti A. Hearst Report No. UCB 94720 #12;#12;Context and Structure in Automated Full-Text Information Access by Marti A. Hearst B and Structure in Automated Full-Text Information Access Copyright c 1994 by Marti A. Hearst #12;In memory of my

Hearst, Marti

317

A Chinese Text Classification Approach Based on Semantic Web  

Science Conference Proceedings (OSTI)

This paper discusses a approach of Chinese text classification on semantic Web. It is given one classified technology based on the semantic concept established on the "How-net" . It extracts keywords from text, analyses the full text using the keywords ...

Shiqun Yin; Yuhui Qiu; Jike Ge; Fang Wang

2008-12-01T23:59:59.000Z

318

A Bayesian feature selection paradigm for text classification  

Science Conference Proceedings (OSTI)

The automated classification of texts into predefined categories has witnessed a booming interest, due to the increased availability of documents in digital form and the ensuing need to organize them. An important problem for text classification is feature ... Keywords: Bayesian feature selection, Metropolis search, Mixture model, Text classification

Guozhong Feng; Jianhua Guo; Bing-Yi Jing; Lizhu Hao

2012-03-01T23:59:59.000Z

319

Text segmentation based on document understanding for information retrieval  

E-Print Network (OSTI)

Text segmentation based on document understanding for information retrieval Violaine Prince,alexandre.labadie}@lirmm.fr Abstract. Information retrieval needs to match relevant texts with a given query. Selecting appropriate retrieval task is shown. 1 Introduction Information retrieval needs to match relevant texts with a given

Paris-Sud XI, Université de

320

MCMR: Maximum coverage and minimum redundant text summarization model  

Science Conference Proceedings (OSTI)

In paper, we propose an unsupervised text summarization model which generates a summary by extracting salient sentences in given document(s). In particular, we model text summarization as an integer linear programming problem. One of the advantages of ... Keywords: Branch-and-bound, Integer linear programming, Less redundancy, Maximum coverage, Particle swarm optimization, Text summarization

Rasim M. Alguliev; Ramiz M. Aliguliyev; Makrufa S. Hajirahimova; Chingiz A. Mehdiyev

2011-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Solid-State Lighting: Text-Alternative Version: LED Essentials -  

NLE Websites -- All DOE Office Websites (Extended Search)

Essentials - Technology, Applications, Advantages, Disadvantages to someone Essentials - Technology, Applications, Advantages, Disadvantages to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Google Bookmark Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Delicious Rank Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Digg

322

SunShot Initiative: Helios: Understanding Solar Evolution through Text  

NLE Websites -- All DOE Office Websites (Extended Search)

Helios: Understanding Solar Helios: Understanding Solar Evolution through Text Analytics to someone by E-mail Share SunShot Initiative: Helios: Understanding Solar Evolution through Text Analytics on Facebook Tweet about SunShot Initiative: Helios: Understanding Solar Evolution through Text Analytics on Twitter Bookmark SunShot Initiative: Helios: Understanding Solar Evolution through Text Analytics on Google Bookmark SunShot Initiative: Helios: Understanding Solar Evolution through Text Analytics on Delicious Rank SunShot Initiative: Helios: Understanding Solar Evolution through Text Analytics on Digg Find More places to share SunShot Initiative: Helios: Understanding Solar Evolution through Text Analytics on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Balance of Systems

323

Human Error Mitigation in Future Operations Control Centers  

E-Print Network (OSTI)

This report documents a human error mitigation study conducted at the William J. Hughes Technical Center Research Development & Human Factors Laboratory. The study examined potential causes of human errors in future Airway Facilities (AF) operations control centers (OCCs). The participants consisted of nine specialists having expertise in current AF operations and knowledge of human error tendencies. The participants explored four operational scenarios, identified potential sources of error, and recommended specific solutions. A research team extracted common themes from participant responses to each of the four scenarios and identified general sources of potential error. They made specific recommendations for mitigating error in future OCC facilities. 17. Key Words NIMS, operations control centers, fault management, errors, human factors, event ticketing 18. Distribution Statement This document is available to the public through the National Technical Information Service, Springfield, Virginia, 22161 19. Security Classif. (of this report) 20. Security Classif. (of this page) 21. No. of Pages 48 22. Price Form DOT F 1700.7 (8-72) Reproduction of completed page authorized iii Acknowledgments This research would not have been possible without the support and sponsorship of AAR-100, the Office of the Chief Scientific and Technical Advisor for Human Factors. The research team greatly appreciated the outstanding support provided by Jack Oxford, FDC, who headed the effort to develop futuristic scenarios and to recruit participants. Dan Wagner and Armida Rosiles, ACT-530, and Anton Koros, FDC, played important roles in the completion of this study. Subject matter experts who supported scenario development included Patrick Marable, Kermit Grayson, and William Bauerle...

Vicki Ahlstrom, Ph.D.; Yvette J Tenney; Richard W. Pew; Robert L. Cranston; Richard Mogford, Ph.D.; Author(s Vicki Ahlstrom (act; Jean MacMillen; Jean Macmillan; Yvette Tenney; Richard Pew

1999-01-01T23:59:59.000Z

324

A grid infrastructure for text mining of full text articles and creation of a knowledge base of gene relations  

Science Conference Proceedings (OSTI)

We demonstrate the application of a grid infrastructure for conducting text mining over distributed data and computational resources. The approach is based on using LexiQuest Mine, a text mining workbench, in a grid computing environment. We describe ...

Jeyakumar Natarajan; Niranjan Mulay; Catherine DeSesa; Catherine J. Hack; Werner Dubitzky; Eric G. Bremer

2005-11-01T23:59:59.000Z

325

September 2004 Water Sampling  

Office of Legacy Management (LM)

was not identified at many groundwater locations. 18. Was the presence or absence of ice in the cooler documented at every sample location? Yes 19. Were water levels measured...

326

Computer Science Sample Occupations  

E-Print Network (OSTI)

Computer Science Sample Occupations COMPUTER OPERATIONS Computer Hardware/ Software Engineer Computer Operator Database Manager/ Administrator Data Entry Operator Operations Manager DESIGN & MANUFACTURING, ENGINEERING Coder CAD Computer Applications Engineers Computer Research Scientist Computer

Ronquist, Fredrik

327

SAMPLING AND ANALYSIS PROTOCOLS  

SciTech Connect

Radiological sampling and analyses are performed to collect data for a variety of specific reasons covering a wide range of projects. These activities include: Effluent monitoring; Environmental surveillance; Emergency response; Routine ambient monitoring; Background assessments; Nuclear license termination; Remediation; Deactivation and decommissioning (D&D); and Waste management. In this chapter, effluent monitoring and environmental surveillance programs at nuclear operating facilities and radiological sampling and analysis plans for remediation and D&D activities will be discussed.

Jannik, T; P Fledderman, P

2007-02-09T23:59:59.000Z

328

Form:SampleForm | Open Energy Information  

Open Energy Info (EERE)

SampleForm Jump to: navigation, search Input the name of a Test Page below. If the resource already exists, you will be able to edit its information. AddEdit a Test Page The text...

329

Solid-State Lighting: Text-Alternative Version: Understanding and  

NLE Websites -- All DOE Office Websites (Extended Search)

In Situ TMP and LM-80 Reports to someone by In Situ TMP and LM-80 Reports to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: Understanding and Evaluating In Situ TMP and LM-80 Reports on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: Understanding and Evaluating In Situ TMP and LM-80 Reports on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: Understanding and Evaluating In Situ TMP and LM-80 Reports on Google Bookmark Solid-State Lighting: Text-Alternative Version: Understanding and Evaluating In Situ TMP and LM-80 Reports on Delicious Rank Solid-State Lighting: Text-Alternative Version: Understanding and Evaluating In Situ TMP and LM-80 Reports on Digg Find More places to share Solid-State Lighting: Text-Alternative Version: Understanding and Evaluating In Situ TMP and LM-80 Reports on

330

Widget:ExpandableTextEnd | Open Energy Information  

Open Energy Info (EERE)

ExpandableTextEnd ExpandableTextEnd Jump to: navigation, search This widget allows text to start hidden then expand and re-hide when clicked. Users will see "....[read more]" when hidden and "[show less]" when expanded. (configurable) Users of this widget must use the Start and End variants of the widget, as shown below. While slightly less convenient for the wiki content developer to use two widgets, this allows full wikitext in the expandable text area, which would otherwise just be limited to plaintext. Parameters for this widget include: moretext - text label to show more (optional, defaults to "....[read more]") lesstext - text label to show less (optional, defaults to "[show less]") autoExpand - expand the expandable content on page load (optional,

331

"Show Preview" button is not working; gives error | OpenEI Community  

Open Energy Info (EERE)

"Show Preview" button is not working; gives error "Show Preview" button is not working; gives error Home > Groups > Utility Rate Submitted by Ewilson on 3 January, 2013 - 09:52 1 answer Points: 0 Eric, thanks for reporting this. I checked with stakeholders (http://en.openei.org/community/node/657) and decided since the edit view and the "show preview" view would be nearly identical, it wasn't worth keeping the show preview button. However, "Show changes" will show text changes for the utility rates, which is valuable when making a change. Thanks for reporting - this bug is now fixed! Ryan Rmckeel on 17 May, 2013 - 10:30 Groups Menu You must login in order to post into this group. Recent content FYI, OpenEI now accommodates t... Very useful information. Thank... The utility rate database version 1 API is now deprecated

332

Liquid sampling system  

DOE Patents (OSTI)

A conduit extends from a reservoir through a sampling station and back to the reservoir in a closed loop. A jet ejector in the conduit establishes suction for withdrawing liquid from the reservoir. The conduit has a self-healing septum therein upstream of the jet ejector for receiving one end of a double-ended cannula, the other end of which is received in a serum bottle for sample collection. Gas is introduced into the conduit at a gas bleed between the sample collection bottle and the reservoir. The jet ejector evacuates gas from the conduit and the bottle and aspirates a column of liquid from the reservoir at a high rate. When the withdrawn liquid reaches the jet ejector the rate of flow therethrough reduces substantially and the gas bleed increases the pressure in the conduit for driving liquid into the sample bottle, the gas bleed forming a column of gas behind the withdrawn liquid column and interrupting the withdrawal of liquid from the reservoir. In the case of hazardous and toxic liquids, the sample bottle and the jet ejector may be isolated from the reservoir and may be further isolated from a control station containing remote manipulation means for the sample bottle and control valves for the jet ejector and gas bleed.

Larson, Loren L. (Idaho Falls, ID)

1987-01-01T23:59:59.000Z

333

Liquid sampling system  

DOE Patents (OSTI)

A conduit extends from a reservoir through a sampling station and back to the reservoir in a closed loop. A jet ejector in the conduit establishes suction for withdrawing liquid from the reservoir. The conduit has a self-healing septum therein upstream of the jet ejector for receiving one end of a double-ended cannula, the other end of which is received in a serum bottle for sample collection. Gas is introduced into the conduit at a gas bleed between the sample collection bottle and the reservoir. The jet ejector evacuates gas from the conduit and the bottle and aspirates a column of liquid from the reservoir at a high rate. When the withdrawn liquid reaches the jet ejector the rate of flow therethrough reduces substantially and the gas bleed increases the pressure in the conduit for driving liquid into the sample bottle, the gas bleed forming a column of gas behind the withdrawn liquid column and interrupting the withdrawal of liquid from the reservoir. In the case of hazardous and toxic liquids, the sample bottle and the jet ejector may be isolated from the reservoir and may be further isolated from a control station containing remote manipulation means for the sample bottle and control valves for the jet ejector and gas bleed. 5 figs.

Larson, L.L.

1984-09-17T23:59:59.000Z

334

Generic Text Summarization Using Probabilistic Latent Semantic Indexing  

E-Print Network (OSTI)

Generic Text Summarization Using Probabilistic Latent Semantic Indexing Harendra Bhandari Graduate School of Information Science Nara Institute of Science and Technology Nara 630-0192, Japan harendra

335

Geothermal Webinar Presentation Slides and Text Version | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Field Sites Power Marketing Administration Other Agencies You are here Home Geothermal Webinar Presentation Slides and Text Version Geothermal Webinar Presentation Slides...

336

Electricity Grid Basics Webinar Presentation Slides and Text Version  

Energy.gov (U.S. Department of Energy (DOE))

Download presentation slides and a text version of the audio from the DOE Office of Indian Energy webinar on electricity grid basics.

337

Complex Biological Event Extraction from Full Text using Signatures of Linguistic and Semantic Features  

SciTech Connect

Building on technical advances from the BioNLP 2009 Shared Task Challenge, the 2011 challenge sets forth to generalize techniques to other complex biological event extraction tasks. In this paper, we present the implementation and evaluation of a signature-based machine-learning technique to predict events from full texts of infectious disease documents. Specifically, our approach uses novel signatures composed of traditional linguistic features and semantic knowledge to predict event triggers and their candidate arguments. Using a leave-one out analysis, we report the contribution of linguistic and shallow semantic features in the trigger prediction and candidate argument extraction. Lastly, we examine evaluations and posit causes for errors of infectious disease track subtasks.

McGrath, Liam R.; Domico, Kelly O.; Corley, Courtney D.; Webb-Robertson, Bobbie-Jo M.

2011-06-24T23:59:59.000Z

338

Complex biological event extraction from full text using signatures of linguistic and semantic features  

E-Print Network (OSTI)

Building on technical advances from the BioNLP 2009 Shared Task Challenge, the 2011 challenge sets forth to generalize techniques to other complex biological event extraction tasks. In this paper, we present the implementation and evaluation of a signaturebased machine-learning technique to predict events from full texts of infectious disease documents. Specifically, our approach uses novel signatures composed of traditional linguistic features and semantic knowledge to predict event triggers and their candidate arguments. Using a leave-one out analysis, we report the contribution of linguistic and shallow semantic features in the trigger prediction and candidate argument extraction. Lastly, we examine evaluations and posit causes for errors in our complex biological event extraction.

Liam R. Mcgrath; Kelly Domico; Courtney D. Corley; Bobbie-jo Webb-robertson

2011-01-01T23:59:59.000Z

339

Measuring contextual fitness using error contexts extracted from the Wikipedia revision history  

Science Conference Proceedings (OSTI)

We evaluate measures of contextual fitness on the task of detecting real-word spelling errors. For that purpose, we extract naturally occurring errors and their contexts from the Wikipedia revision history. We show that such natural errors are better ...

Torsten Zesch

2012-04-01T23:59:59.000Z

340

Analysis and Reduction of Systematic Errors through a Seamless Approach to Modeling Weather and Climate  

Science Conference Proceedings (OSTI)

The reduction of systematic errors is a continuing challenge for model development. Feedbacks and compensating errors in climate models often make finding the source of a systematic error difficult. In this paper, it is shown how model ...

G. M. Martin; S. F. Milton; C. A. Senior; M. E. Brooks; S. Ineson; T. Reichler; J. Kim

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Assessing the Impact of Differential Genotyping Errors on Rare Variant Tests of Association  

E-Print Network (OSTI)

Genotyping errors are well-known to impact the power and type I error rate in single marker tests of association. Genotyping errors that happen according to the same process in cases and controls are known as non-differential ...

Fast, Shannon Marie

342

Estimating Model-Error Covariances for Application to Atmospheric Data Assimilation  

Science Conference Proceedings (OSTI)

Forecast-error statistics have traditionally been used to investigate model performance and to calculate analysis weights for atmospheric data assimilation. Forecast error has two components: the model error, caused by model imperfections, and ...

Roger Daley

1992-08-01T23:59:59.000Z

343

Error in Measurements of Incoming Shortwave Radiation Made from Ships and Buoys  

Science Conference Proceedings (OSTI)

Errors in shortwave solar radiation measurements resulting from mean tils and rocking motions, as well as from the response time of the sensors, are determined experimentally. The magnitude of the mean tilt error can be large and lead to errors ...

M. A. MacWhorter; R. A. Weller

1991-02-01T23:59:59.000Z

344

A Practical Approach to Sequential Estimation of Systematic Error on Near-Surface Mesoscale Grids  

Science Conference Proceedings (OSTI)

Statistical analysis arguments are used to construct an estimation algorithm for systematic error of near-surface temperatures on a mesoscale grid. The systematic error is defined as the observed running-mean error, and an averaging length of 7 ...

Joshua P. Hacker; Daran L. Rife

2007-12-01T23:59:59.000Z

345

Multi-vector tests: a path to perfect error-rate testing  

Science Conference Proceedings (OSTI)

The importance of testing approaches that exploit error tolerance to improve yield has previously been established. Error rate, defined as the percentage of vectors for which the value at a circuit's output deviates from the corresponding error-free ...

Shideh Shahidi; Sandeep Gupta

2008-03-01T23:59:59.000Z

346

SED: supervised experimental design and its application to text classification  

Science Conference Proceedings (OSTI)

In recent years, active learning methods based on experimental design achieve state-of-the-art performance in text classification applications. Although these methods can exploit the distribution of unlabeled data and support batch selection, they cannot ... Keywords: active learning, convex optimization, supervised experimental design, text classification

Yi Zhen; Dit-Yan Yeung

2010-07-01T23:59:59.000Z

347

Sentence-level event classification in unstructured texts  

Science Conference Proceedings (OSTI)

The ability to correctly classify sentences that describe events is an important task for many natural language applications such as Question Answering (QA) and Text Summarisation. In this paper, we treat event detection as a sentence level text classification ... Keywords: Event detection, Information extraction, Language modeling, Machine learning

M. Naughton; N. Stokes; J. Carthy

2010-04-01T23:59:59.000Z

348

Real-time automatic insertion of accents in French text  

Science Conference Proceedings (OSTI)

Automatic Accent Insertion (AAI) is the problem of re-inserting accents (diacritics) into a text where they are missing. Unaccented French texts are still quite common in electronic media, as a result of a long history of character encoding problems ...

Michel Simard; Alexandre Deslauriers

2001-06-01T23:59:59.000Z

349

Group and topic discovery from relations and text  

Science Conference Proceedings (OSTI)

We present a probabilistic generative model of entity relationships and textual attributes that simultaneously discovers groups among the entities and topics among the corresponding text. Block-models of relationship data have been studied in social ... Keywords: graphical models, relational learning, text modeling

Xuerui Wang; Natasha Mohanty; Andrew McCallum

2005-08-01T23:59:59.000Z

350

SITAC: discovering semantically identical temporally altering concepts in text archives  

Science Conference Proceedings (OSTI)

This paper demonstrates a system called SITAC based on our proposed approach to automate the discovery of concepts (called SITACs) in text sources that are identical semantically but alter their names over time. This system is developed to perform time-aware ... Keywords: association rules, information retrieval, query processing, ranking, temporal changes, text mining, web search

Amal Kaluarachchi; Debjani Roychoudhury; Aparna S. Varde; Gerhard Weikum

2011-03-01T23:59:59.000Z

351

Using text to build semantic networks for pharmacogenomics  

Science Conference Proceedings (OSTI)

Most pharmacogenomics knowledge is contained in the text of published studies, and is thus not available for automated computation. Natural Language Processing (NLP) techniques for extracting relationships in specific domains often rely on hand-built ... Keywords: Biological network, Data integration, Information extraction, Knowledge acquisition, Natural Language Processing, Ontology, Pharmacogenomics, Relationship extraction, Text mining

Adrien Coulet; Nigam H. Shah; Yael Garten; Mark Musen; Russ B. Altman

2010-12-01T23:59:59.000Z

352

Index structures for efficiently searching natural language text  

Science Conference Proceedings (OSTI)

Many existing indexes on text work at the document granularity and are not effective in answering the class of queries where the desired answer is only a term or a phrase. In this paper, we study some of the index structures that are capable of answering ... Keywords: indexing natural language text, querying performance, wild card queries

Pirooz Chubak; Davood Rafiei

2010-10-01T23:59:59.000Z

353

Comparison of metrics for feature selection in imbalanced text classification  

Science Conference Proceedings (OSTI)

Abstract: Class imbalance problems are often encountered in real applications of automatic text classifications especially at the so-called ''one-against-all'' settings and thus handling the problem with satisfactory performance is substantially important. ... Keywords: Combination framework, Feature selection, Imbalanced data, Poisson distribution, Text classification, k-NN classifier

Hiroshi Ogura; Hiromi Amano; Masato Kondo

2011-05-01T23:59:59.000Z

354

Using structured text for large-scale attribute extraction  

Science Conference Proceedings (OSTI)

We propose a weakly-supervised approach for extracting class attributes from structured text available within Web documents. The overall precision of the extracted attributes is around 30% higher than with previous methods operating on Web documents. ... Keywords: class attribute extraction, knowledge acquisition, structured text collections, weakly-supervised information extraction

Sujith Ravi; Marius Pa?ca

2008-10-01T23:59:59.000Z

355

A tutorial on text-independent speaker verification  

Science Conference Proceedings (OSTI)

This paper presents an overview of a state-of-the-art text-independent speaker verification system. First, an introduction proposes a modular scheme of the training and test phases of a speaker verification system. Then, the most commonly speech parameterization ... Keywords: Gaussian mixture modeling, cepstral analysis, speaker verification, text-independent

Frédéric Bimbot; Jean-François Bonastre; Corinne Fredouille; Guillaume Gravier; Ivan Magrin-Chagnolleau; Sylvain Meignier; Teva Merlin; Javier Ortega-García; Dijana Petrovska-Delacrétaz; Douglas A. Reynolds

2004-01-01T23:59:59.000Z

356

Home Energy Score Program Update Webinar (Text Version) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Program Update Webinar (Text Version) Program Update Webinar (Text Version) Home Energy Score Program Update Webinar (Text Version) Below is a text version of the webinar titled "Home Energy Score: Program Update for Interested Stakeholders," originally presented on July 23, 2012. In addition to this text version of the audio, you can access the presentation slides and a recording of the webinar. Joan Glickman: Slide 1: Thank you very much and good afternoon, or good morning to those of you on the west coast. Thanks for calling in and viewing today. As Cortney said, I am going to spend, I don't know maybe a half an hour going through our program update and we will take questions, so maybe we can have 15 minutes for questions and the last 15 minutes I can go through some slides that are specifically for those types of organizations who might be

357

Energy 101: Home Energy Checkup (Text Version) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy 101: Home Energy Checkup (Text Version) Energy 101: Home Energy Checkup (Text Version) Energy 101: Home Energy Checkup (Text Version) April 2, 2012 - 5:25pm Addthis Energy 101: Home Energy Checkup (Text Version) Below is the text version for the Home Energy Checkup 101 video. The video opens with "Energy 101: Home Energy Checkup." A computer-generated image shows money flying out of the windows of a house. In any season, a leaky home costs money. How do you stop it? It starts with a comprehensive home energy checkup. The video switches to a shot of an inspector walking through a house and doing various tasks: reading an infrared gage, putting on a mask, checking the insulation, checking wiring in the attic, checking lighting fixtures. That's a series of tests and inspections to find out where your house could

358

Home Energy Score Pilot Analysis Webinar (Text Version) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pilot Analysis Webinar (Text Version) Pilot Analysis Webinar (Text Version) Home Energy Score Pilot Analysis Webinar (Text Version) Below is a text version of the webinar titled "Home Energy Score: Analysis and Improvements to Date," originally presented on July 24, 2012. In addition to this text version of the audio, you can access the presentation slides and a recording of the webinar. Slide 2: To date based on the pilot findings, tell you a little bit about the analysis that we did over the last year or so, partly from the pilots and then also through another piece of analysis that NREL did for us using model data and also utility bill data. And then, finally I will tell you a little bit about our next steps and what were are planning as we move forward with implementation, both in terms of implementation, but with an

359

Energy 101: Home Energy Checkup (Text Version) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

101: Home Energy Checkup (Text Version) 101: Home Energy Checkup (Text Version) Energy 101: Home Energy Checkup (Text Version) April 2, 2012 - 5:25pm Addthis Energy 101: Home Energy Checkup (Text Version) Below is the text version for the Home Energy Checkup 101 video. The video opens with "Energy 101: Home Energy Checkup." A computer-generated image shows money flying out of the windows of a house. In any season, a leaky home costs money. How do you stop it? It starts with a comprehensive home energy checkup. The video switches to a shot of an inspector walking through a house and doing various tasks: reading an infrared gage, putting on a mask, checking the insulation, checking wiring in the attic, checking lighting fixtures. That's a series of tests and inspections to find out where your house could

360

DOE Challenge Home Better Business for Builders Webinar (Text Version) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Home Better Business for Builders Webinar (Text Home Better Business for Builders Webinar (Text Version) DOE Challenge Home Better Business for Builders Webinar (Text Version) Below is a text version of the webinar titled "DOE Challenge Home: Better Business for Builders," originally presented in May 2012. In addition to this text version of the audio, you can access the presentation slides and a recording of the webinar (video). Jamie Lyons: Slide 1: Welcome to the DOE Challenge Home orientation webinar. We're glad you could join us today. My name is Jamie Lyons. I support the DOE Challenge Home program. Today's webinar is an annual training that's mandatory for our partners to participate in. Just before we get started I wanted to offer up a few logistical announcements. First of all, we have a

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Home Energy Score Update (text version) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Update (text version) Update (text version) Home Energy Score Update (text version) Below is a text version of the Webinar titled "Home Energy Score Update," originally presented on November 17, 2010. In addition to this text version of the audio, you can access the presentation slides and a recording of the Webinar (WMV 58 MB). Joan Glickman: We'll get through as many as we can in the next half an hour. [Next Slide] So as many of you probably know, this all started through the Recovery Through Retrofit effort which was initiated by the Middle Class Task Force out of the Office of the Vice President. That task force identified three major barriers standing in the way to greater use of and investment in home energy improvements around the country. And what they identified as the

362

Errors and Artefacts in Agent-Based Modelling  

E-Print Network (OSTI)

The objectives of this paper are to define and classify different types of errors and artefacts that can appear in the process of developing an agent-based model, and to propose activities aimed at avoiding them during the model construction and testing phases. To do this in a structured way, we review the main concepts of the process of developing such a model – establishing a general framework that summarises the process of designing, implementing, and using agent-based models. Within this framework we identify the various stages where different types of errors and artefacts may appear. Finally we propose activities that could be used to detect (and hence eliminate) each type of error or artefact.

José Manuel Galán; Luis R. Izquierdo; Segismundo S. Izquierdo; José Ignacio Santos; Ricardo Del Olmo; Adolfo López-Paredes; Bruce Edmonds

2009-01-01T23:59:59.000Z

363

Fluid sampling system  

DOE Patents (OSTI)

This invention comprises a fluid sampling system which allows sampling of radioactive liquid without spillage. A feed tank is connected to a liquid transfer jet powered by a pumping chamber pressurized by compressed air. The liquid is pumped up into a sampling jet of venturi design having a lumen with an inlet, an outlet, a constricted middle portion, and a port located above the constricted middle portion. The liquid is passed under pressure through the constricted portion causing its velocity to increase and its pressure to decrease, thereby preventing liquid from escaping. A septum sealing the port can be pierced by a two pointed hollow needle leading into a sample bottle also sealed by a pierceable septum affixed to one end. The bottle is evacuated by flow through the sample jet, cyclic variation in the sampler jet pressure periodicially leaves the evacuated bottle with lower pressure than that of the port, thus causing solution to pass into the bottle. The remaining solution in the system is returned to the feed tank via a holding tank.

Houck, E.D.

1993-12-31T23:59:59.000Z

364

Fluid sampling system  

DOE Patents (OSTI)

An fluid sampling system allows sampling of radioactive liquid without spillage. A feed tank is connected to a liquid transfer jet powered by a pumping chamber pressurized by compressed air. The liquid is pumped upwardly into a sampling jet of a venturi design having a lumen with an inlet, an outlet, a constricted middle portion, and a port located above the constricted middle portion. The liquid is passed under pressure through the constricted portion causing its velocity to increase and its pressure to decreased, thereby preventing liquid from escaping. A septum sealing the port can be pierced by a two pointed hollow needle leading into a sample bottle also sealed by a pierceable septum affixed to one end. The bottle is evacuated by flow through the sample jet, cyclic variation in the sampler jet pressure periodically leaves the evacuated bottle with lower pressure than that of the port, thus causing solution to pass into the bottle. The remaining solution in the system is returned to the feed tank via a holding tank.

Houck, Edward D. (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

365

Fluid sampling system  

DOE Patents (OSTI)

An fluid sampling system allows sampling of radioactive liquid without spillage. A feed tank is connected to a liquid transfer jet powered by a pumping chamber pressurized by compressed air. The liquid is pumped upwardly into a sampling jet of a venturi design having a lumen with an inlet, an outlet, a constricted middle portion, and a port located above the constricted middle portion. The liquid is passed under pressure through the constricted portion causing its velocity to increase and its pressure to be decreased, thereby preventing liquid from escaping. A septum sealing the port can be pierced by a two pointed hollow needle leading into a sample bottle also sealed by a pierceable septum affixed to one end. The bottle is evacuated by flow through the sample jet, cyclic variation in the sampler jet pressure periodically leaves the evacuated bottle with lower pressure than that of the port, thus causing solution to pass into the bottle. The remaining solution in the system is returned to the feed tank via a holding tank. 4 figs.

Houck, E.D.

1994-10-11T23:59:59.000Z

366

Lossless Data Compression with Error Detection using Cantor Set  

E-Print Network (OSTI)

In 2009, a lossless compression algorithm based on 1D chaotic maps known as Generalized Lur\\"{o}th Series (or GLS) has been proposed. This algorithm (GLS-coding) encodes the input message as a symbolic sequence on an appropriate 1D chaotic map (GLS) and the compressed file is obtained as the initial value by iterating backwards on the map. For ergodic sources, it was shown that GLS-coding achieves the best possible lossless compression (in the noiseless setting) bounded by Shannon entropy. However, in the presence of noise, even small errors in the compressed file leads to catastrophic decoding errors owing to sensitive dependence on initial values. In this paper, we first show that Repetition codes $\\mathcal{R}_n$ (every symbol is repeated $n$ times, where $n$ is a positive odd integer), the oldest and the most basic error correction and detection codes in literature, actually lie on a Cantor set with a fractal dimension of $\\frac{1}{n}$, which is also the rate of the code. Inspired by this, we incorporate error detection capability to GLS-coding by ensuring that the compressed file (initial value on the map) lies on a Cantor set of measure zero. Even a 1-bit error in the initial value will throw it outside the Cantor set which can be detected while decoding. The error detection performance (and also the rate of the code) can be controlled by the fractal dimension of the Cantor set and could be suitably adjusted depending on the noise level of the communication channel.

Nithin Nagaraj

2013-08-10T23:59:59.000Z

367

Viscous sludge sample collector  

DOE Patents (OSTI)

A vertical core sample collection system for viscous sludge. A sample tube's upper end has a flange and is attached to a piston. The tube and piston are located in the upper end of a bore in a housing. The bore's lower end leads outside the housing and has an inwardly extending rim. Compressed gas, from a storage cylinder, is quickly introduced into the bore's upper end to rapidly accelerate the piston and tube down the bore. The lower end of the tube has a high sludge entering velocity to obtain a full-length sludge sample without disturbing strata detail. The tube's downward motion is stopped when its upper end flange impacts against the bore's lower end inwardly extending rim.

Beitel, George A. (Richland, WA)

1983-01-01T23:59:59.000Z

368

Laser Phase Errors in Seeded Free Electron Lasers  

SciTech Connect

Harmonic seeding of free electron lasers has attracted significant attention as a method for producing transform-limited pulses in the soft x-ray region. Harmonic multiplication schemes extend seeding to shorter wavelengths, but also amplify the spectral phase errors of the initial seed laser, and may degrade the pulse quality and impede production of transform-limited pulses. In this paper we consider the effect of seed laser phase errors in high gain harmonic generation and echo-enabled harmonic generation. We use simulations to confirm analytical results for the case of linearly chirped seed lasers, and extend the results for arbitrary seed laser envelope and phase.

Ratner, D.; Fry, A.; Stupakov, G.; White, W.; /SLAC

2012-04-17T23:59:59.000Z

369

JLab SRF Cavity Fabrication Errors, Consequences and Lessons Learned  

Science Conference Proceedings (OSTI)

Today, elliptical superconducting RF (SRF) cavities are preferably made from deep-drawn niobium sheets as pursued at Jefferson Laboratory (JLab). The fabrication of a cavity incorporates various cavity cell machining, trimming and electron beam welding (EBW) steps as well as surface chemistry that add to forming errors creating geometrical deviations of the cavity shape from its design. An analysis of in-house built cavities over the last years revealed significant errors in cavity production. Past fabrication flaws are described and lessons learned applied successfully to the most recent in-house series production of multi-cell cavities.

Frank Marhauser

2011-09-01T23:59:59.000Z

370

Composite Toffoli gate with two-round error detection  

E-Print Network (OSTI)

We introduce a fault-tolerant construction to implement a composite quantum operation of four overlapping Toffoli gates. The same construction can produce two independent Toffoli gates. This result lowers resource overheads in designs for quantum computers by more than an order of magnitude. The procedure uses Clifford operations and 64 copies of the non-Clifford gate $T = \\exp[i \\pi (I - \\sigma^z) /8]$. Quantum codes detect errors in the circuit. When the dominant source of error is $T$-gate failure with probability $p$, then the composite Toffoli circuit has postselected failure rate of $3072p^4$ to lowest order.

Cody Jones

2013-03-27T23:59:59.000Z

371

Meta Modeling of Transmission Error for Spur, Helical and Planetary Gears for Wind Turbine Application.  

E-Print Network (OSTI)

??Detailed analysis of drive train dynamics requires accounting for the transmission error that arises in gears. However, the direct computation of the transmission error requires… (more)

Irfan, Muhammad

2013-01-01T23:59:59.000Z

372

T-573: Windows Remote Desktop Client DLL Loading Error Lets Remote...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

73: Windows Remote Desktop Client DLL Loading Error Lets Remote Users Execute Arbitrary Code T-573: Windows Remote Desktop Client DLL Loading Error Lets Remote Users Execute...

373

Author age prediction from text using linear regression  

Science Conference Proceedings (OSTI)

While the study of the connection between discourse patterns and personal identification is decades old, the study of these patterns using language technologies is relatively recent. In that more recent tradition we frame author age prediction from text ...

Dong Nguyen; Noah A. Smith; Carolyn P. Rosé

2011-06-01T23:59:59.000Z

374

Topic Extraction from Text Documents Using Multiple-Cause Networks  

Science Conference Proceedings (OSTI)

This paper presents an approach to the topic extraction from text documents using probabilistic graphical models. Multiple-cause networks with latent variables are used and the Helmholtz machines are utilized to ease the learning and inference. The learning ...

Jeong-Ho Chang; Jae Won Lee; Yuseop Kim; Byoung-Tak Zhang

2002-08-01T23:59:59.000Z

375

Classification based automatic information extraction system from free text  

Science Conference Proceedings (OSTI)

The ever increasing on-line text information can be made available to automatic processing by information system. Several machine learning techniques have been applied in order to build automatic information that rivaling knowledge engineering approach. ...

Myat Myo Nwe Wai

2011-03-01T23:59:59.000Z

376

A Common Theory of Information Fusion from Multiple Text Sources  

E-Print Network (OSTI)

A Common Theory of Information Fusion from Multiple Text Sources Step One: Cross-Document Structure families in the Northeast hit hard by this year's cold weather and the soaring cost of home heating oil

377

UDel: named entity recognition and reference regeneration from surface text  

Science Conference Proceedings (OSTI)

This report describes the methods and results of a system developed for the GREC Named Entity Recognition and GREC Named Entity Regeneration Challenges 2010. We explain our process of automatically annotating surface text, as well as how we use this ...

Nicole L. Sparks; Charles F. Greenbacker; Kathleen F. McCoy; Che-Yu Kuo

2010-07-01T23:59:59.000Z

378

Modelling sequential text with an adaptive topic model  

Science Conference Proceedings (OSTI)

Topic models are increasingly being used for text analysis tasks, often times replacing earlier semantic techniques such as latent semantic analysis. In this paper, we develop a novel adaptive topic model with the ability to adapt topics from both the ...

Lan Du; Wray Buntine; Huidong Jin

2012-07-01T23:59:59.000Z

379

Home Performance with ENERGY STAR Webinar (text version)  

NLE Websites -- All DOE Office Websites (Extended Search)

5, 2010 - Home Performance with ENERGY STAR Webinar (text version) Erin Jackson: Okay, hi, everybody. This is Erin Jackson with the Department of Energy, and we welcome you to...

380

Energy Education and Workforce Development: Text-Alternative...  

NLE Websites -- All DOE Office Websites (Extended Search)

Version: Webcast on BITES to someone by E-mail Share Energy Education and Workforce Development: Text-Alternative Version: Webcast on BITES on Facebook Tweet about Energy Education...

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

LaTaT: language and text analysis tools  

Science Conference Proceedings (OSTI)

LaTaT is a Language and Text Analysis Toolset. This paper gives a brief description of the components comprising LaTaT, including a Minimalist parser and language and concept learning programs.

Dekang Lin

2001-03-01T23:59:59.000Z

382

Distributional word clusters vs. words for text categorization  

Science Conference Proceedings (OSTI)

We study an approach to text categorization that combines distributional clustering of words and a Support Vector Machine (SVM) classifier. This word-cluster representation is computed using the recently introduced Information Bottleneck method, ...

Ron Bekkerman; Ran El-Yaniv; Naftali Tishby; Yoad Winter

2003-03-01T23:59:59.000Z

383

Energy Education and Workforce Development: Text-Alternative...  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Literate Citizenry from K-to-Gray to someone by E-mail Share Energy Education and Workforce Development: Text-Alternative Webcast of the Energy Literate Citizenry from...

384

Energy Education and Workforce Development: Text-Alternative...  

NLE Websites -- All DOE Office Websites (Extended Search)

of the The Energy 101 Course Framework to someone by E-mail Share Energy Education and Workforce Development: Text-Alternative Version: Webcast of the The Energy 101 Course...

385

Automated de-identification of free-text medical records  

E-Print Network (OSTI)

Background: Text-based patient medical records are a vital resource in medical research. In order to preserve patient confidentiality, however, the U.S. Health Insurance Portability and Accountability Act (HIPAA) requires ...

Neamatullah, Ishna

386

Self-training for handwritten text line recognition  

Science Conference Proceedings (OSTI)

Off-line handwriting recognition deals with the task of automatically recognizing handwritten text from images, for example from scanned sheets of paper. Due to the tremendous variations of writing styles encountered between different individuals, this ...

Volkmar Frinken; Horst Bunke

2010-11-01T23:59:59.000Z

387

Modeling and Managing Content Changes in Text Databases  

Science Conference Proceedings (OSTI)

Large amounts of (often valuable) information are stored in web-accessible text databases. "Metasearchers" provide unified interfaces to query multiple such databases at once. For efficiency, metasearchers rely on succinct statistical summaries of the ...

Panagiotis G. Ipeirotis; Alexandros Ntoulas; Junghoo Cho; Luis Gravano

2005-04-01T23:59:59.000Z

388

A Tutorial on Text-Independent Speaker Verification  

E-Print Network (OSTI)

This paper presents an overview of a state-of-the-art text-independent speaker verification system. First, an introduction proposes a modular scheme of the training and test phases of a speaker verification system. Then, ...

Bimbot, Frederic

389

Patent semantics : analysis, search and visualization of large text corpora  

E-Print Network (OSTI)

Patent Semantics is system for processing text documents by extracting features capturing their semantic content, and searching, clustering, and relating them by those same features. It is set apart from existing methodologies ...

Lucas, Christopher G

2004-01-01T23:59:59.000Z

390

Widget:ExpandableTextStart | Open Energy Information  

Open Energy Info (EERE)

ExpandableTextStart ExpandableTextStart Jump to: navigation, search This widget allows text to start hidden then expand and re-hide when clicked. Users will see "....[read more]" when hidden and "[show less]" when expanded. (configurable in Widget:ExpandableTextEnd) This widget does not allow any parameters. Users of this widget must use the Start and End variants of the widget, as shown below. While slightly less convenient for the wiki content developer to use two widgets, this allows full wikitext in the expandable text area, which would otherwise just be limited to plaintext. Usage: Be what you would seem to be - or if you'd like it put more simply {{#Widget:ExpandableTextStart}}- Never imagine yourself not to be otherwise than what it might appear to others that what you were or might have been was not otherwise than what you had been would have appeared to them to be otherwise. Lewis Carroll (1832 - 1898) from '''Alice's Adventures in Wonderland and Through the Looking Glass.'''

391

ANNULAR IMPACTOR SAMPLING DEVICE  

DOE Patents (OSTI)

A high-rate air sampler capable of sampling alphaemitting particles as small as 0.5 microns is described. The device is a cylindrical shaped cup that fits in front of a suction tube and which has sticky grease coating along its base. Suction forces contaminated air against the periodically monitored particle absorbing grease.

Tait, G.W.C.

1959-03-31T23:59:59.000Z

392

Some aspects regarding human error assessment in resilient sociotechnical systems  

Science Conference Proceedings (OSTI)

The paper focuses on a human reliability analysis (HRA) that provides estimates of relative frequencies for human errors in particular critical tasks, highlighting the exposed areas of the system in which the improvements will be beneficial. The dynamic ... Keywords: human factor qualitative, quantitative analysis, risk, sociotechnical system

Gabriela Tont; Luige Vladareanu; Radu Adrian Munteanu; Dan George Tont

2009-11-01T23:59:59.000Z

393

Automated Source-Level Error Localization in Hardware Designs  

Science Conference Proceedings (OSTI)

Recent achievements in formal verification techniques allow for fault detection even in large real-world designs. Tool support for localizing the faulty statements is critical, because it reduces development time and overall project costs. Automated ... Keywords: design error diagnosis, software debugging, model-based diagnosis, fault localization

Bernhard Peischl; Franz Wotawa

2006-01-01T23:59:59.000Z

394

Jackknife empirical likelihood tests for error distributions in regression models  

Science Conference Proceedings (OSTI)

Regression models are commonly used to model the relationship between responses and covariates. For testing the error distribution, some classical test statistics such as Kolmogorov-Smirnov test and Cramer-von-Mises test suffer from the complicated limiting ... Keywords: Goodness-of-fit test, Jackknife empirical Likelihood method, Regression model, primary

Huijun Feng; Liang Peng

2012-11-01T23:59:59.000Z

395

An algorithm for recovering camouflage errors on moving people  

Science Conference Proceedings (OSTI)

In this paper we present a model-based algorithm working as a post-processing phase of any foreground object detector. The model is suited to recover camouflage errors producing the segmentation of an entity in small and unconnected parts. The model ...

D. Conte; P. Foggia; G. Percannella; F. Tufano; M. Vento

2010-08-01T23:59:59.000Z

396

Error mining for wide-coverage grammar engineering  

Science Conference Proceedings (OSTI)

Parsing systems which rely on hand-coded linguistic descriptions can only perform adequately in as far as these descriptions are correct and complete.The paper describes an error mining technique to discover problems in hand-coded linguistic descriptions ...

Gertjan van Noord

2004-07-01T23:59:59.000Z

397

Evaluate error sources and uncertainty in large scale measurement systems  

Science Conference Proceedings (OSTI)

Modern manufacturing technologies place increasingly higher demands on industrial measurement systems. Over the last decade there have been rapid developments in 3D measurement systems, with the primary requirement coming from industries such as automotives, ... Keywords: Best fit methods, Laser scanner, Measurement errors, Uncertainty

Qing Wang; Nick Zissler; Roger Holden

2013-02-01T23:59:59.000Z

398

Testing and Error Analysis of Acceleration of Rotating Transformer  

Science Conference Proceedings (OSTI)

From the working principle of rotary transformers, the paper in-depth analyses the relationship between output voltage and rotor angle as well as speed. By using the method of series expansion and discrete, angular acceleration formula which is used ... Keywords: Rotating Transformer, Acceleration, Error of Measurement, slip frequency

Lu Xiuhe; Xue Peng

2010-07-01T23:59:59.000Z

399

DISPERSION AND DISSIPATION ERRORS OF TWO FULLY DISCRETE DISCONTINUOUS GALERKIN  

E-Print Network (OSTI)

-dimensional Euler equations in gas dynamics. There has been abundant study on the dispersion analysis of many nuDISPERSION AND DISSIPATION ERRORS OF TWO FULLY DISCRETE DISCONTINUOUS GALERKIN METHODS HE YANG, FENGYAN LI, AND JIANXIAN QIU Abstract. The dispersion and dissipation properties of numerical meth- ods

Li, Fengyan

400

A JVM for soft-error-prone embedded systems  

Science Conference Proceedings (OSTI)

The reduction of structure sizes in microcontollers, environmental conditions or low supply voltages increase the susceptibility of embedded systems to soft errors. As a result, the employment of fault-detection and fault-tolerance measures is becoming ... Keywords: KESO, RTSJ, embedded systems, java, real-time systems, reliability

Isabella Stilkerich, Michael Strotz, Christoph Erhardt, Martin Hoffmann, Daniel Lohmann, Fabian Scheler, Wolfgang Schröder-Preikschat

2013-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

On the Pressure Gradient Force Error in ?-Coordinate Spectral Models  

Science Conference Proceedings (OSTI)

The pressure gradient force error of the spectral technique used in combination with the ? vertical coordinate was examined in an idealized case of an atmosphere at rest and in hydrostatic equilibrium. Small-scale (one-point and three-point) ...

Zavis?a I. Janji?

1989-10-01T23:59:59.000Z

402

Counter example-based error localization of behavior models  

Science Conference Proceedings (OSTI)

Behavior models are often used to describe behaviors of the system-to-be during requirements analysis or design phases. The correctness of the specified model can be formally verified by model checking techniques. Model checkers provide counterexamples ... Keywords: design, error localization, model checking, requirements analysis

Tsutomu Kumazawa; Tetsuo Tamai

2011-04-01T23:59:59.000Z

403

Error computation for predictable real-time software synthesis  

Science Conference Proceedings (OSTI)

Synthesizing an implementation from a model in a predictable way is one of the major challenges in real-time system design. In our previous work we addressed this problem by generating in real-time an execution path through a model and by synchronizing ... Keywords: error computation, predictable design, property prediction, real-time systems

Jeroen Voeten; Oana Florescu; Jinfeng Huang; Henk Corporaal

2011-04-01T23:59:59.000Z

404

Note: Statistical errors estimation for Thomson scattering diagnostics  

SciTech Connect

A practical way of estimating statistical errors of a Thomson scattering diagnostic measuring plasma electron temperature and density is described. Analytically derived expressions are successfully tested with Monte Carlo simulations and implemented in an automatic data processing code of the JET LIDAR diagnostic.

Maslov, M.; Beurskens, M. N. A.; Flanagan, J.; Kempenaars, M. [EURATOM-CCFE Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Collaboration: JET-EFDA Contributors

2012-09-15T23:59:59.000Z

405

NREL: Innovation Spectrum - NREL Spectrum of Innovation Video (Text  

NLE Websites -- All DOE Office Websites (Extended Search)

Spectrum of Innovation Video (Text Version) Spectrum of Innovation Video (Text Version) Below is the text version of the NREL Spectrum of Innovation video. "...renewable energy is a national imperative..." "...This breakthrough technology will..." "...we are still looking for an innovative material that will..." "...we need a study to determine..." "...the right people need to work together..." "...competing priorities mean we cannot..." There are many voices calling for a future of abundant, clean energy. The choices are many...and the challenges are daunting. How will we get there? The National Renewable Energy Laboratory integrates the entire spectrum of innovation, including Fundamental Science, Market-Relevant Research, Systems Integration, Testing and Validation, Commercialization, and

406

Texts to Hillary -- from Secretary Chu | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Texts to Hillary -- from Secretary Chu Texts to Hillary -- from Secretary Chu Texts to Hillary -- from Secretary Chu April 12, 2012 - 6:44pm Addthis Secretary Chu stops at Oak Ridge National Lab in February 2012 for a quick, nuclear-themed visit that included a tour of the Consortium for Advanced Simulation of Light Water Reactors (CASL) and a stop at the new Manufacturing Demonstration Facility (MDF). | Photo by Adam Brimer of the News Sentinel. Secretary Chu stops at Oak Ridge National Lab in February 2012 for a quick, nuclear-themed visit that included a tour of the Consortium for Advanced Simulation of Light Water Reactors (CASL) and a stop at the new

407

NREL: Learning - National Wind Technology Center Video (Text Version)  

NLE Websites -- All DOE Office Websites (Extended Search)

National Wind Technology Center Video (Text Version) National Wind Technology Center Video (Text Version) This is the text version for the National Wind Technology Center video. The video opens with spinning blades of wind turbines and the National Renewable Energy Laboratory logo. It then cuts to images of windmills turning on farms. The video cuts in between shots of wind turbines and face-to-face interviews of scientists from NREL's National Wind Technology Center. (Voiceover) It is a pure, plentiful natural resource. Jim Johnson, Senior Engineer: "Right now, wind is in high demand." (Voiceover) And it holds the potential to transform the way we power our homes and businesses. Fort Felker, National Wind Technology Center Director: "It's changing the way power is being made in the country. It's really having an impact."

408

NREL: Learning - Center for Photovoltaics Video (Text Version)  

NLE Websites -- All DOE Office Websites (Extended Search)

Center for Photovoltaics Video (Text Version) Center for Photovoltaics Video (Text Version) This is the text version for the Center for Photovoltaics video. The video opens with the NREL logo, surrounded by "Department of Energy's NREL: National Renewable Energy Laboratory." A scene of a city skyline at sunset. The sky is a brilliant red, and the buildings are silhouetted in shadow. The scene shifts to an image of a shadowed field, lit by a bright red sunset. The image changes to the NREL Solar Energy Research Facility (SERF), a building with a long, diagonally sloping front with large windows and solar panels on the roof. (Voiceover) It is our constant source of light and heat and it's essential to a sustainable energy future. The National Renewable Energy Laboratory in Golden, Colorado is a global leader in developing cost-effective, solar

409

A Sampling Plan of HIV Drug Resistance Early Warning Indicators in China  

Science Conference Proceedings (OSTI)

In this paper, a sampling plan of HIV drug resistance early warning indicators (EWI-HIVDR) in China is discussed, for a limited discrete population. The relative error standard of the accuracy control is established, and the formula of the sample size ... Keywords: HIV/AIDS, EWI-HIVDR, Limited discrete population, Accuracy control

Gang Liu; Litao Han

2009-03-01T23:59:59.000Z

410

The Bias and Error in Moment Estimators for Parameters of Drop Size Distribution Functions: Sampling from Gamma Distributions  

Science Conference Proceedings (OSTI)

This paper complements an earlier one that demonstrated the bias in the method-of-moments (MM) estimators frequently used to estimate parameters for drop size distribution (DSD) functions being “fitted” to observed raindrop size distributions. ...

Paul L. Smith; Donna V. Kliche; Roger W. Johnson

2009-10-01T23:59:59.000Z

411

Linguistic profiling of texts for the purpose of language verification  

Science Conference Proceedings (OSTI)

In order to control the quality of internet-based language corpora, we developed a method to verify automatically that texts are of (near-) native quality. For the LOCNESS and ICLE corpora, the method is rather successful in separating native and non-native ...

Hans Van Halteren; Nelleke Oostdijk

2004-08-01T23:59:59.000Z

412

XUTools: UNIX commands for processing next-generation structured text  

Science Conference Proceedings (OSTI)

Traditional Unix tools operate on sequences of characters, bytes, fields, lines, and files. However, modern practitioners often want to manipulate files in terms of a variety of language-specific constructs--C functions, Cisco IOS interface blocks, and ... Keywords: automation, change management, configuration management, text processing, tools, unix

Gabriel A. Weaver; Sean W. Smith

2012-12-01T23:59:59.000Z

413

Using temporal cues for segmenting texts into events  

Science Conference Proceedings (OSTI)

One of the early application of Information Extraction, motivated by the needs for intelligence tools, is the detection of events in news articles. But this detection may be difficult when news articles mention several occurrences of events of the same ... Keywords: information extraction, temporal cues, text segmentation

Ludovic Jean-Louis; Romaric Besançon; Olivier Ferret

2010-08-01T23:59:59.000Z

414

Recognition of Pornographic Web Pages by Classifying Texts and Images  

Science Conference Proceedings (OSTI)

With the rapid development of the World Wide Web, people benefit more and more from the sharing of information. However, Web pages with obscene, harmful, or illegal content can be easily accessed. It is important to recognize such unsuitable, offensive, ... Keywords: Web pages, pornographic texts, pornographic images, data fusion, recognition.

Weiming Hu; Ou Wu; Zhouyao Chen; Zhouyu Fu; Steve Maybank

2007-06-01T23:59:59.000Z

415

A comparative study of two short text semantic similarity measures  

Science Conference Proceedings (OSTI)

This paper describes a comparative study of STASIS and LSA. These measures of semantic similarity can be applied to short texts for use in Conversational Agents (CAs). CAs are computer programs that interact with humans through natural language dialogue. ... Keywords: benchmark, dialogue management, natural language, semantic similarity, sentence, user modeling

James O'Shea; Zuhair Bandar; Keeley Crockett; David McLean

2008-03-01T23:59:59.000Z

416

Ancient runes: using text input for interaction in mobile games  

Science Conference Proceedings (OSTI)

Mobile phones are often carried in the pocket making them available for gaming any time. Mobile games typically rely on the joystick for input, but quality of the joystick is very different in the different devices. This paper presents Ancient Runes, ... Keywords: mobile multiplayer gaming, playability, text input

Elina M. I. Koivisto; Riku Suomela; Ari Koivisto

2006-07-01T23:59:59.000Z

417

Amplifying the voice of youth in Africa via text analytics  

Science Conference Proceedings (OSTI)

U-report is an open-source SMS platform operated by UNICEF Uganda, designed to give community members a voice on issues that impact them. Data received by the system are either SMS responses to a poll conducted by UNICEF, or unsolicited reports of a ... Keywords: machine learning, text classification

Prem Melville, Vijil Chenthamarakshan, Richard D. Lawrence, James Powell, Moses Mugisha, Sharad Sapra, Rajesh Anandan, Solomon Assefa

2013-08-01T23:59:59.000Z

418

PADMA: PArallel Data Mining Agents for scalable text classification  

Science Conference Proceedings (OSTI)

This paper introduces PADMA (PArallel Data Mining Agents), a parallel agent based system for scalable text classification. PADMA contains modules for (1) parallel data accessing operations, (2) parallel hierarchical clustering, and (3) web-based data visualization. This paper introduces the general architecture of PADMA and presents a detailed description of its different modules.

Kargupta, H.; Hamzaoglu, I.; Stafford, B. [and others

1997-03-01T23:59:59.000Z

419

Metrics based performance control over text mining tools in bioinformatics  

Science Conference Proceedings (OSTI)

Bioinformatics is a field of biology merging with few other sciences like information technology and statistics which involves in the discovery of new tools for data analysis and interpretation of accurate result. Some of the areas in which bioinformatics ... Keywords: bioinformatics, performance control, performance evaluation, software metrics, text mining

Jayanthi Manicassamy; P. Dhavachelvan

2009-01-01T23:59:59.000Z

420

Exploring Versus Exploiting when Learning User Models for Text Recommendation  

Science Conference Proceedings (OSTI)

The text recommendation task involves delivering sets of documents to users on the basis of user models. These models are improved over time, given feedback on the delivered documents. When selecting documents to recommend, a system faces an instance ... Keywords: Information filtering, Machine learning, Recommender systems, Relevance feedback, Selective Dissemination of Information, User modeling, adaptive information retrieval.

Marko Balabanovi?

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Detecting research topics via the correlation between graphs and texts  

Science Conference Proceedings (OSTI)

In this paper we address the problem of detecting topics in large-scale linked document collections. Recently, topic detection has become a very active area of research due to its utility for information navigation, trend analysis, and high-level description ... Keywords: citation graphs, correlation of text and links, graph mining, probabilistic measure, topic detection

Yookyung Jo; Carl Lagoze; C. Lee Giles

2007-08-01T23:59:59.000Z

422

Joint latent topic models for text and citations  

Science Conference Proceedings (OSTI)

In this work, we address the problem of joint modeling of text and citations in the topic modeling framework. We present two different models called the Pairwise-Link-LDA and the Link-PLSA-LDA models. The Pairwise-Link-LDA model combines the ideas of ... Keywords: LDA, PLSA, citations, hyperlinks, influence, topic models, variational inference

Ramesh M. Nallapati; Amr Ahmed; Eric P. Xing; William W. Cohen

2008-08-01T23:59:59.000Z

423

News to go: hierarchical text summarization for mobile devices  

Science Conference Proceedings (OSTI)

We present an evaluation of a novel hierarchical text summarization method that allows users to view summaries of Web documents from small, mobile devices. Unlike previous approaches, ours does not require the documents to be in HTML since it infers ... Keywords: mobile computing, summarization

Jahna Otterbacher; Dragomir Radev; Omer Kareem

2006-08-01T23:59:59.000Z

424

Text-dependent writer identification for Arabic handwriting  

Science Conference Proceedings (OSTI)

This paper proposes a system for text-dependent writer identification based on Arabic handwriting. First, a database of words was assembled and used as a test base. Next, features vectors were extracted from writers' word images. Prior to the feature ...

Somaya Al-Maadeed

2012-01-01T23:59:59.000Z

425

Errors associated with particulate matter measurements on rural sources: appropriate basis for regulating cotton gins  

E-Print Network (OSTI)

Agricultural operations across the United States are encountering difficulties complying with current air pollution regulations for particulate matter (PM). PM is currently regulated in terms of particle diameters less than or equal to a nominal 10 ?m (PM10); however, current legislation is underway to regulate PM with diameters less than or equal to a nominal 2.5 ?m (PM2.5). The goals of this research were to determine the biases and uncertainties associated with current PM10 and PM2.5 sampling methods and to determine the extent to which these errors may impact the determination of cotton gin emission factors. Ideally, PM samplers would produce an accurate measure of the pollutant indicator; for instance, a PM10 sampler would produce an accurate measure of PM less than or equal to 10 ?m. However, samplers are not perfect and errors are introduced because of the established tolerances associated with sampler performance characteristics and the interaction of particle size and sampler performance characteristics. Results of this research indicated that a source emitting PM characterized by a mass median diameter (MMD) of 20 ?m and a geometric standard deviation (GSD) of 1.5 could be forced to comply with a 3.2 and 14 times more stringent regulation of PM10 and PM2.5, respectively, than a source emitting PM characterized by a MMD of 10 ?m and a GSD of 1.5. These estimates are based on both sources emitting the same concentrations of true PM or concentrations corresponding to the particle diameters less than the size of interest. Various methods were used to estimate the true PM10 and PM2.5 emission factors associated with cotton gin exhausts and the extent to which the sampler errors impacted the PM regulation. Results from this research indicated that current cotton gin emission factors could be over-estimated by about 40%. This over-estimation is a consequence of the relatively large PM associated with cotton gin exhausts. These PM sampling errors are contributing to the misappropriation of source emissions in State Implementation Plans, essentially forcing Air Pollution Regulatory Agencies to require additional controls on sources that may be incorrectly classified has high emitters.

Buser, Michael Dean

2003-05-01T23:59:59.000Z

426

Hierarchical decoding of double error correcting codes for high speed reliable memories  

Science Conference Proceedings (OSTI)

As the technology moves into the nano-realm, traditional single-error-correcting, double-error-detecting (SEC-DED) codes are no longer sufficient for protecting memories against transient errors due to the increased multi-bit error rate. The well known ...

Zhen Wang

2013-05-01T23:59:59.000Z

427

PROPANE: an environment for examining the propagation of errors in software  

Science Conference Proceedings (OSTI)

In order to produce reliable software, it is important to have knowledge on how faults and errors may affect the software. In particular, designing efficient error detection mechanisms requires not only knowledge on which types of errors to detect but ... Keywords: error propagation analysis, fault injection, software development tools, software reliability

Martin Hiller; Arshad Jhumka; Neeraj Suri

2002-07-01T23:59:59.000Z

428

B-spline goal-oriented error estimators for geometrically nonlinear rods  

Science Conference Proceedings (OSTI)

We consider goal-oriented a posteriori error estimators for the evaluation of the errors on quantities of interest associated with the solution of geometrically nonlinear curved elastic rods. For the numerical solution of these nonlinear one-dimensional ... Keywords: B-spline basis, Error estimators, Geometrically nonlinear rods, Goal-oriented a posteriori error estimation, Isogeometric analysis

L. Dedè; H. A. Santos

2012-01-01T23:59:59.000Z

429

Microsoft Word - DOE_fin_rept_text.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

2 2 Frequency of Report: Final Reporting Period Start Date: March 1, 2004 Reporting Period End Date: September 30, 2006 Name of Submitting Organization: Joint Oceanographic Institutions Principal Authors: Dr. Frank R. Rack, and the IODP Expedition 311 Scientific Party* Date Report Issued: February 2007 Frank R. Rack (Joint Oceanographic Institutions; 1201 New York Ave., NW; Suite 400; Washington, DC, 20005; Tel: (202) 232-3900, ext. 1608; Email: frack@joiscience.org); and the IODP Expedition 311 Scientific Party*. DE-FC26-01NT41329 Joint Oceanographic Institutions In-Situ Sampling and Characterization of Naturally Occurring Marine Methane Hydrate Using the D/V JOIDES Resolution. 2 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the

430

Domain-independent information extraction in unstructured text  

SciTech Connect

Extracting information from unstructured text has become an important research area in recent years due to the large amount of text now electronically available. This status report describes the findings and work done during the second year of a two-year Laboratory Directed Research and Development Project. Building on the first-year`s work of identifying important entities, this report details techniques used to group words into semantic categories and to output templates containing selective document content. Using word profiles and category clustering derived during a training run, the time-consuming knowledge-building task can be avoided. Though the output still lacks in completeness when compared to systems with domain-specific knowledge bases, the results do look promising. The two approaches are compatible and could complement each other within the same system. Domain-independent approaches retain appeal as a system that adapts and learns will soon outpace a system with any amount of a priori knowledge.

Irwin, N.H. [Sandia National Labs., Albuquerque, NM (United States). Software Surety Dept.

1996-09-01T23:59:59.000Z

431

Inferring Group Processes from Computer-Mediated Affective Text Analysis  

SciTech Connect

Political communications in the form of unstructured text convey rich connotative meaning that can reveal underlying group social processes. Previous research has focused on sentiment analysis at the document level, but we extend this analysis to sub-document levels through a detailed analysis of affective relationships between entities extracted from a document. Instead of pure sentiment analysis, which is just positive or negative, we explore nuances of affective meaning in 22 affect categories. Our affect propagation algorithm automatically calculates and displays extracted affective relationships among entities in graphical form in our prototype (TEAMSTER), starting with seed lists of affect terms. Several useful metrics are defined to infer underlying group processes by aggregating affective relationships discovered in a text. Our approach has been validated with annotated documents from the MPQA corpus, achieving a performance gain of 74% over comparable random guessers.

Schryver, Jack C [ORNL; Begoli, Edmon [ORNL; Jose, Ajith [Missouri University of Science and Technology; Griffin, Christopher [Pennsylvania State University

2011-02-01T23:59:59.000Z

432

Adversary phase change detection using SOMs and text data.  

SciTech Connect

In this work, we developed a self-organizing map (SOM) technique for using web-based text analysis to forecast when a group is undergoing a phase change. By 'phase change', we mean that an organization has fundamentally shifted attitudes or behaviors. For instance, when ice melts into water, the characteristics of the substance change. A formerly peaceful group may suddenly adopt violence, or a violent organization may unexpectedly agree to a ceasefire. SOM techniques were used to analyze text obtained from organization postings on the world-wide web. Results suggest it may be possible to forecast phase changes, and determine if an example of writing can be attributed to a group of interest.

Speed, Ann Elizabeth; Doser, Adele Beatrice; Warrender, Christina E.

2010-05-01T23:59:59.000Z

433

Electronic Full-text STI | Scientific and Technical Information Program  

Office of Scientific and Technical Information (OSTI)

Electronic Full-text STI Electronic Full-text STI Print page Print page Email page Email page STI products should be provided to OSTI in electronic format, preferably in Portable Document Format (PDF) Searchable; however, certain other electronic formats are acceptable: Hypertext Markup Language (HTML) for site-hosted STI only Microsoft Word (Versions 5.0 or greater) for AN 241.3 submittals only PDF Searchable PDF Non-Searchable As technologies evolve, the list of acceptable electronic formats will be revised and updated. The following table lists the acceptable electronic formats and usage guidance. If the originating site is going to host the product on a publicly accessible server, a unique URL must be provided to OSTI with a direct link to the product. The STI product should not be encrypted or

434

Finding Text Information in the Ocean of Electronic Documents  

Science Conference Proceedings (OSTI)

Information management in natural resources has become an overwhelming task. A massive amount of electronic documents and data is now available for creating informed decisions. The problem is finding the relevant information to support the decision-making process. Determining gaps in knowledge in order to propose new studies or to determine which proposals to fund for maximum potential is a time-consuming and difficult task. Additionally, available data stores are increasing in complexity; they now may include not only text and numerical data, but also images, sounds, and video recordings. Information visualization specialists at Pacific Northwest National Laboratory (PNNL) have software tools for exploring electronic data stores and for discovering and exploiting relationships within data sets. These provide capabilities for unstructured text explorations, the use of data signatures (a compact format for the essence of a set of scientific data) for visualization (Wong et al 2000), visualizations for multiple query results (Havre et al. 2001), and others (http://www.pnl.gov/infoviz ). We will focus on IN-SPIRE, a MS Windows vision of PNNL’s SPIRE (Spatial Paradigm for Information Retrieval and Exploration). IN-SPIRE was developed to assist information analysts find and discover information in huge masses of text documents.

Medvick, Patricia A.; Calapristi, Augustin J.

2003-02-05T23:59:59.000Z

435

Dictionary Design for Text Image Compression with JBIG2  

E-Print Network (OSTI)

The JBIG2 standard for lossy and lossless bi-level image coding is a very flexible encoding strategy based on pattern matching techniques. This paper addresses the problem of compressing text images with JBIG2. For text image compression, JBIG2 allows two encoding strategies: SPM and PM&S. We compare in detail the lossless and lossy coding performance using the SPM-based and PM&S-based JBIG2, including their coding efficiency, reconstructed image quality and system complexity. For the SPM-based JBIG2, we discuss the bit rate trade-off associated with symbol dictionary design. We propose two symbol dictionary design techniques: the class-based and tree-based techniques. Experiments show that the SPM-based JBIG2 is a more efficient lossless system, leading to 8% higher compression ratios on average. It also provides better control over the reconstructed image quality in lossy compression. However, SPM's advantages come at the price of higher encoder complexity. The proposed class-based and tree-based symbol dictionary designs outperform simpler dictionary formation techniques by 8% for lossless and 16-18% for lossy compression. Keywords Bi-level image coding, text image compression, JBIG2, soft pattern matching, symbol dictionary. 1 1

Yan Ye; Pamela Cosman

2001-01-01T23:59:59.000Z

436

NID Copper Sample Analysis  

SciTech Connect

The current focal point of the nuclear physics program at PNNL is the MAJORANA DEMONSTRATOR, and the follow-on Tonne-Scale experiment, a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay (0???). This experiment requires the use of germanium isotopically enriched in 76Ge. The MAJORANA DEMONSTRATOR is a DOE and NSF funded project with a major science impact. The DEMONSTRATOR will utilize 76Ge from Russia, but for the Tonne-Scale experiment it is hoped that an alternate technology, possibly one under development at Nonlinear Ion Dynamics (NID), will be a viable, US-based, lower-cost source of separated material. Samples of separated material from NID require analysis to determine the isotopic distribution and impurities. DOE is funding NID through an SBIR grant for development of their separation technology for application to the Tonne-Scale experiment. The Environmental Molecular Sciences facility (EMSL), a DOE user facility at PNNL, has the required mass spectroscopy instruments for making isotopic measurements that are essential to the quality assurance for the MAJORANA DEMONSTRATOR and for the development of the future separation technology required for the Tonne-Scale experiment. A sample of isotopically separated copper was provided by NID to PNNL in January 2011 for isotopic analysis as a test of the NID technology. The results of that analysis are reported here. A second sample of isotopically separated copper was provided by NID to PNNL in August 2011 for isotopic analysis as a test of the NID technology. The results of that analysis are also reported here.

Kouzes, Richard T.; Zhu, Zihua

2011-09-12T23:59:59.000Z

437

Cue effectiveness in mitigating postcompletion errors in a routine procedural task  

Science Conference Proceedings (OSTI)

Postcompletion errors, which are omissions of actions required after the completion of a task's main goal, occur in a variety of everyday procedural tasks. Previous research has demonstrated the difficulty of reducing their frequency by means other than ... Keywords: ACT-R, Cognitive architecture, Error intervention, Error mitigation, Goal memory, Human error, Interface design, Modeling, Postcompletion error, Routine procedural task, Visual attention, Visual cue, Visual salience

Phillip H. Chung; Michael D. Byrne

2008-04-01T23:59:59.000Z

438

Comparison of Wind Power and Load Forecasting Error Distributions: Preprint  

DOE Green Energy (OSTI)

The introduction of large amounts of variable and uncertain power sources, such as wind power, into the electricity grid presents a number of challenges for system operations. One issue involves the uncertainty associated with scheduling power that wind will supply in future timeframes. However, this is not an entirely new challenge; load is also variable and uncertain, and is strongly influenced by weather patterns. In this work we make a comparison between the day-ahead forecasting errors encountered in wind power forecasting and load forecasting. The study examines the distribution of errors from operational forecasting systems in two different Independent System Operator (ISO) regions for both wind power and load forecasts at the day-ahead timeframe. The day-ahead timescale is critical in power system operations because it serves the unit commitment function for slow-starting conventional generators.

Hodge, B. M.; Florita, A.; Orwig, K.; Lew, D.; Milligan, M.

2012-07-01T23:59:59.000Z

439

Human Errors as an Invaluable Source for Experienced Decision Making  

E-Print Network (OSTI)

: In this paper the traditional paradigm for learning and training of operators in complex systems is discussed and criticised. There is a strong influence (the doctrine of 'mental logic') coming from research carried out in artificial intelligence. The most well known arguments against the artificial intelligence approach are presented and discussed in relation to expertise, intuition and implicit knowledge. The importance of faults and errors are discussed to describe expertise, and how knowledge about unsuccessful behaviour influences the actual decision making process of experts. 1. Introduction In this paper we will discuss the importance of learning from unsuccessful behaviour. What percentage of unanticipated events (e.g., accidents) is caused by human error? This is a question that vexed researchers for years in the context of human interaction with complex systems. In general, incident surveys in a variety of industries attribute high percentages of critical events to ...

Matthias Rauterberg; Roger Aeppli

1996-01-01T23:59:59.000Z

440

NID Copper Sample Analysis  

Science Conference Proceedings (OSTI)

The current focal point of the nuclear physics program at PNNL is the MAJORANA DEMONSTRATOR, and the follow-on Tonne-Scale experiment, a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay (0???). This experiment requires the use of germanium isotopically enriched in 76Ge. The DEMONSTRATOR will utilize 76Ge from Russia, but for the Tonne-Scale experiment it is hoped that an alternate technology under development at Nonlinear Ion Dynamics (NID) will be a viable, US-based, lower-cost source of separated material. Samples of separated material from NID require analysis to determine the isotopic distribution and impurities. The MAJORANA DEMONSTRATOR is a DOE and NSF funded project with a major science impact. DOE is funding NID through an SBIR grant for development of their separation technology for application to the Tonne-Scale experiment. The Environmental Molecular Sciences facility (EMSL), a DOE user facility at PNNL, has the required mass spectroscopy instruments for making these isotopic measurements that are essential to the quality assurance for the MAJORANA DEMONSTRATOR and for the development of the future separation technology required for the Tonne-Scale experiment. A sample of isotopically separated copper was provided by NID to PNNL for isotopic analysis as a test of the NID technology. The results of that analysis are reported here.

Kouzes, Richard T.; Zhu, Zihua

2011-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Collection and control of tritium bioassay samples at Pantex  

SciTech Connect

Pantex is the final assembly/disassembly point for US nuclear weapons. The Pantex internal dosimetry section monitors radiation workers once a month for tritium exposure. In order to manage collection and control of the bioassay specimens efficiently, a bar code system for collection of samples was developed and implemented to speed up the process and decrease the number of errors probable when transferring data. In the past, all the bioassay data from samples were entered manually into a computer database. Transferring the bioassay data from the liquid scintillation counter to each individual`s dosimetry record required as much as two weeks of concentrated effort.

Fairrow, N.L.; Ivie, W.E.

1992-12-31T23:59:59.000Z

442

Solar Energy Education. Renewable energy: a background text. [Includes glossary  

SciTech Connect

Some of the most common forms of renewable energy are presented in this textbook for students. The topics include solar energy, wind power hydroelectric power, biomass ocean thermal energy, and tidal and geothermal energy. The main emphasis of the text is on the sun and the solar energy that it yields. Discussions on the sun's composition and the relationship between the earth, sun and atmosphere are provided. Insolation, active and passive solar systems, and solar collectors are the subtopics included under solar energy. (BCS)

1985-01-01T23:59:59.000Z

443

Solar Energy Education. Renewable energy: a background text. [Includes glossary  

DOE Green Energy (OSTI)

Some of the most common forms of renewable energy are presented in this textbook for students. The topics include solar energy, wind power hydroelectric power, biomass ocean thermal energy, and tidal and geothermal energy. The main emphasis of the text is on the sun and the solar energy that it yields. Discussions on the sun's composition and the relationship between the earth, sun and atmosphere are provided. Insolation, active and passive solar systems, and solar collectors are the subtopics included under solar energy. (BCS)

Not Available

1985-01-01T23:59:59.000Z

444

Table 2b. Relative Standard Errors for Electricity Consumption and  

U.S. Energy Information Administration (EIA) Indexed Site

2b. Relative Standard Errors for Electricity 2b. Relative Standard Errors for Electricity Table 2b. Relative Standard Errors for Electricity Consumption and Electricity Intensities, per Square Foot, Specific to Occupied and Vacant Floorspace, 1992 Building Characteristics All Buildings Using Electricity (thousand) Total Electricity Consumption (trillion Btu) Electricity Intensities (thousand Btu) In Total Floor- space In Occupied Floor- space In Vacant Floor- space Per Square Foot Per Occupied Square Foot Per Vacant Square Foot All Buildings 4 5 5 9 4 4 4 Building Floorspace (Square Feet) 1,001 to 5,000 5 6 6 12 6 6 9 5,001 to 10,000 4 9 9 13 9 9 9 10,001 to 25,000 5 7 7 14 5 5 7 25,001 to 50,000 7 10 10 21 10 10 11 50,001 to 100,000 7 12 12 15 8 8 10 100,001 to 200,000 9 13 13 24 10 11 10 200,001 to 500,000 10 13 13 19 11 11 10 Over 500,000 26 18 18 34

445

Numerical study of error propagation in Monte Carlo depletion simulations  

Science Conference Proceedings (OSTI)

Improving computer technology and the desire to more accurately model the heterogeneity of the nuclear reactor environment have made the use of Monte Carlo depletion codes more attractive in recent years, and feasible (if not practical) even for 3-D depletion simulation. However, in this case statistical uncertainty is combined with error propagating through the calculation from previous steps. In an effort to understand this error propagation, a numerical study was undertaken to model and track individual fuel pins in four 17 x 17 PWR fuel assemblies. By changing the code's initial random number seed, the data produced by a series of 19 replica runs was used to investigate the true and apparent variance in k{sub eff}, pin powers, and number densities of several isotopes. While this study does not intend to develop a predictive model for error propagation, it is hoped that its results can help to identify some common regularities in the behavior of uncertainty in several key parameters. (authors)

Wyant, T.; Petrovic, B. [Nuclear and Radiological Engineering, Georgia Inst. of Technology, 770 State Street, Atlanta, GA 30332-0745 (United States)

2012-07-01T23:59:59.000Z

446

DOE Technical Standards Program: Full-Text Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Department of Energy Technical Standards Full-Text Documents Department of Energy Technical Standards Full-Text Documents Office of Nuclear Safety FIND/READ/PRINT A DOE TECHNICAL STANDARD Approved DOE Technical Standards Recently approved DOE Technical Standards Monthly Status Reports DOE Technical Standards Archive RevCom for TSP You can search for a standard by number or keyword or you can browse our approved, recently approved, or draft standards. We have also retained some of our inactive standards in our Archive. The approved and draft DOE technical standards are provided in one or both of the following formats: PDF files that can be viewed and printed through Acrobat Reader or HTML. Instructions for downloading the Acrobat Reader are available at http://www.adobe.com/prodindex/acrobat/readstep.html. Many of the requests we receive are for DOE Directives (Policies, Orders, Notices, Manuals, and Guides). If you are looking for any of these documents, please go to the DOE directives home page at http://www.directives.doe.gov/.

447

Decoupled Sampling for Graphics Pipelines  

E-Print Network (OSTI)

We propose a generalized approach to decoupling shading from visibility sampling in graphics pipelines, which we call decoupled sampling. Decoupled sampling enables stochastic supersampling of motion and defocus blur at ...

Ragan-Kelley, Jonathan Millar

448

Fluid sampling apparatus and method  

DOE Patents (OSTI)

Incorporation of a bellows in a sampling syringe eliminates ingress of contaminants, permits replication of amounts and compression of multiple sample injections, and enables remote sampling for off-site analysis.

Yeamans, David R. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

449

Tracking granules at the Sun's surface and reconstructing velocity fields. II. Error analysis  

E-Print Network (OSTI)

The determination of horizontal velocity fields at the solar surface is crucial to understanding the dynamics and magnetism of the convection zone of the sun. These measurements can be done by tracking granules. Tracking granules from ground-based observations, however, suffers from the Earth's atmospheric turbulence, which induces image distortion. The focus of this paper is to evaluate the influence of this noise on the maps of velocity fields. We use the coherent structure tracking algorithm developed recently and apply it to two independent series of images that contain the same solar signal. We first show that a k-\\omega filtering of the times series of images is highly recommended as a pre-processing to decrease the noise, while, in contrast, using destretching should be avoided. We also demonstrate that the lifetime of granules has a strong influence on the error bars of velocities and that a threshold on the lifetime should be imposed to minimize errors. Finally, although solar flow patterns are easily recognizable and image quality is very good, it turns out that a time sampling of two images every 21 s is not frequent enough, since image distortion still pollutes velocity fields at a 30% level on the 2500 km scale, i.e. the scale on which granules start to behave like passive scalars. The coherent structure tracking algorithm is a useful tool for noise control on the measurement of surface horizontal solar velocity fields when at least two independent series are available.

R. Tkaczuk; M. Rieutord; N. Meunier; T. Roudier

2007-07-13T23:59:59.000Z

450

Groundwater Sampling | Open Energy Information  

Open Energy Info (EERE)

Groundwater Sampling Groundwater Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Groundwater Sampling Details Activities (3) Areas (2) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Water Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Water composition and source of fluids. Determination of mixing ratios between different fluid end-members. Determination of fluid recharge rates and residence times. Thermal: Water temperature. Dictionary.png Groundwater Sampling: Groundwater sampling is done to characterize the chemical, thermal, or hydrological properties of subsurface aqueous systems. Groundwater sampling

451

Water Sampling | Open Energy Information  

Open Energy Info (EERE)

Water Sampling Water Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Water Sampling Details Activities (51) Areas (45) Regions (5) NEPA(2) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Water composition and source of fluids Thermal: Water temperature Dictionary.png Water Sampling: Water sampling is done to characterize the chemical, thermal, or hydrological properties of a surface or subsurface aqueous system. Other definitions:Wikipedia Reegle Introduction Water sampling is done to characterize the geothermal system under investigation. A geothermal water typically has a unique chemical signature

452

GUIDE TO CALCULATING TRANSPORT EFFICIENCY OF AEROSOLS IN OCCUPATIONAL AIR SAMPLING SYSTEMS  

SciTech Connect

This report will present hand calculations for transport efficiency based on aspiration efficiency and particle deposition losses. Because the hand calculations become long and tedious, especially for lognormal distributions of aerosols, an R script (R 2011) will be provided for each element examined. Calculations are provided for the most common elements in a remote air sampling system, including a thin-walled probe in ambient air, straight tubing, bends and a sample housing. One popular alternative approach would be to put such calculations in a spreadsheet, a thorough version of which is shared by Paul Baron via the Aerocalc spreadsheet (Baron 2012). To provide greater transparency and to avoid common spreadsheet vulnerabilities to errors (Burns 2012), this report uses R. The particle size is based on the concept of activity median aerodynamic diameter (AMAD). The AMAD is a particle size in an aerosol where fifty percent of the activity in the aerosol is associated with particles of aerodynamic diameter greater than the AMAD. This concept allows for the simplification of transport efficiency calculations where all particles are treated as spheres with the density of water (1 g?cm-3). In reality, particle densities depend on the actual material involved. Particle geometries can be very complicated. Dynamic shape factors are provided by Hinds (Hinds 1999). Some example factors are: 1.00 for a sphere, 1.08 for a cube, 1.68 for a long cylinder (10 times as long as it is wide), 1.05 to 1.11 for bituminous coal, 1.57 for sand and 1.88 for talc. Revision 1 is made to correct an error in the original version of this report. The particle distributions are based on activity weighting of particles rather than based on the number of particles of each size. Therefore, the mass correction made in the original version is removed from the text and the calculations. Results affected by the change are updated.

Hogue, M.; Hadlock, D.; Thompson, M.; Farfan, E.

2013-11-12T23:59:59.000Z

453

Wind and Load Forecast Error Model for Multiple Geographically Distributed Forecasts  

Science Conference Proceedings (OSTI)

The impact of wind and load forecast errors on power grid operations is frequently evaluated by conducting multi-variant studies, where these errors are simulated repeatedly as random processes based on their known statistical characteristics. To generate these errors correctly, we need to reflect their distributions (which do not necessarily follow a known distribution law), standard deviations, auto- and cross-correlations. For instance, load and wind forecast errors can be closely correlated in different zones of the system. This paper introduces a new methodology for generating multiple cross-correlated random processes to simulate forecast error curves based on a transition probability matrix computed from an empirical error distribution function. The matrix will be used to generate new error time series with statistical features similar to observed errors. We present the derivation of the method and present some experimental results by generating new error forecasts together with their statistics.

Makarov, Yuri V.; Reyes Spindola, Jorge F.; Samaan, Nader A.; Diao, Ruisheng; Hafen, Ryan P.

2010-11-02T23:59:59.000Z

454

Sample holder with optical features  

DOE Patents (OSTI)

A sample holder for holding a sample to be observed for research purposes, particularly in a transmission electron microscope (TEM), generally includes an external alignment part for directing a light beam in a predetermined beam direction, a sample holder body in optical communication with the external alignment part and a sample support member disposed at a distal end of the sample holder body opposite the external alignment part for holding a sample to be analyzed. The sample holder body defines an internal conduit for the light beam and the sample support member includes a light beam positioner for directing the light beam between the sample holder body and the sample held by the sample support member.

Milas, Mirko; Zhu, Yimei; Rameau, Jonathan David

2013-07-30T23:59:59.000Z

455

Quality control of chemical and isotopic analyses of geothermal water samples  

DOE Green Energy (OSTI)

Chemical and isotopic analyses of geothermal water samples must meet certain levels of accuracy and reliability to be useful for identifying geochemical processes in hydrothermal systems. Quality control is largely a concern for the analytical laboratory, but the geochemist or reservoir engineer using the chemical data must also be concerned with analytical quality. To test accuracy and reliability of analyses available from laboratories, splits of seven water samples were sent to four stable-isotope laboratories, and splits of five water samples were sent to four chemical laboratories. The analyses of each sample were compared among laboratories, and the differences in analyses were evaluated using criteria developed for this comparison. Isotopic compositions were considered reliable if they deviated from mean values by less than 2{per_thousand}, for hydrogen and by less than 0.15{per_thousand}, for oxygen. Concentrations of each chemical component were considered reliable if they differed from mean values by less than 10%. Chemical analyses were examined for internal consistency by calculating the error in ionic charge balance and the error between ionic charge and electrical conductivity. To be considered internally consistent, chemical analyses must have less than 5% error in charge balance and less than 10% error in conductivity balance. Three isotope laboratories gave consistent compositions of all samples. No chemical laboratory gave consistent analyses of all samples. Recommendations are made that provide the user of isotopic and chemical data with the ability to better evaluate the quality of analyses.

Reed, Marshall J.; Mariner, Robert H.

1991-01-01T23:59:59.000Z

456

Respiratory motion sampling in 4DCT reconstruction for radiotherapy  

SciTech Connect

Purpose: Phase-based and amplitude-based sorting techniques are commonly used in four-dimensional CT (4DCT) reconstruction. However, effect of these sorting techniques on 4D dose calculation has not been explored. In this study, the authors investigated a candidate 4DCT sorting technique by comparing its 4D dose calculation accuracy with that for phase-based and amplitude-based sorting techniques.Method: An optimization model was formed using organ motion probability density function (PDF) in the 4D dose convolution. The objective function for optimization was defined as the maximum difference between the expected 4D dose in organ of interest and the 4D dose calculated using a 4DCT sorted by a candidate sampling method. Sorting samples, as optimization variables, were selected on the respiratory motion PDF assessed during the CT scanning. Breathing curves obtained from patients' 4DCT scanning, as well as 3D dose distribution from treatment planning, were used in the study. Given the objective function, a residual error analysis was performed, and k-means clustering was found to be an effective sampling scheme to improve the 4D dose calculation accuracy and independent with the patient-specific dose distribution. Results: Patient data analysis demonstrated that the k-means sampling was superior to the conventional phase-based and amplitude-based sorting and comparable to the optimal sampling results. For phase-based sorting, the residual error in 4D dose calculations may not be further reduced to an acceptable accuracy after a certain number of phases, while for amplitude-based sorting, k-means sampling, and the optimal sampling, the residual error in 4D dose calculations decreased rapidly as the number of 4DCT phases increased to 6.Conclusion: An innovative phase sorting method (k-means method) is presented in this study. The method is dependent only on tumor motion PDF. It could provide a way to refine the phase sorting in 4DCT reconstruction and is effective for 4D dose accumulation. Optimized sorting techniques could achieve acceptable residuals (less than 0.5% of the prescription dose) using 6 sorting samples, which is much better than amplitude-based or phase-based sorting. Further increase in sorting phase number exceeding 6 or more may not be necessary when using the k-means sampling or optimal sampling points.

Chi Yuwei; Liang Jian; Qin Xu; Yan Di [Department of Radiation Oncology, Columbia University, New York, New York 10032 (United States); Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073 (United States)

2012-04-15T23:59:59.000Z

457

Sampling streaming data with replacement  

Science Conference Proceedings (OSTI)

Simple random sampling is a widely accepted basis for estimation from a population. When data come as a stream, the total population size continuously grows and only one pass through the data is possible. Reservoir sampling is a method of maintaining ... Keywords: Data stream mining, Random sampling with replacement, Reservoir sampling

Byung-Hoon Park; George Ostrouchov; Nagiza F. Samatova

2007-10-01T23:59:59.000Z

458

Gas Sampling | Open Energy Information  

Open Energy Info (EERE)

Gas Sampling Gas Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Gas Sampling Details Activities (7) Areas (7) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: High flux can be indicative of conduits for fluid flow. Hydrological: Gas composition and source of fluids. Thermal: Anomalous flux is associated with active hydrothermal activity. Distinguish magmatic/mantle heat inputs. Can be used to estimate reservoir fluid temperatures. Dictionary.png Gas Sampling: Gas sampling is done to characterize the chemical, thermal, and hydrological properties of a surface or subsurface hydrothermal system.

459

Potentially Significant Source of Error in Magnetic Paleolatitude Determinations  

E-Print Network (OSTI)

The discovery of close-to-star gas-giant exo-planets lends support to the idea of Earth's origin as a Jupiter-like gas giant and to the consequences of its compression, including whole-Earth decompression dynamics that gives rise, without requiring mantle convection, to the myriad measurements and observations whose descriptions are attributed to plate tectonics. I show here that paleolatitude determinations, used extensively in Pangaea-like reconstructions and in paleoclimate considerations, may be subject to potentially significant errors if rock-magnetization was acquired at Earth-radii less than present.

J. Marvin Herndon

2011-03-03T23:59:59.000Z

460

Generation of Stratified Samples for B-Spline Pixel Filtering Abstract  

E-Print Network (OSTI)

B-spline filter kernals have proved useful in many pixel sampling applications. A cubic B-spline filter kernal, having a width of four pixels, is particularly effective. In distribution ray tracing, pixel filters are evaluated implicitly by having the density of sampling proportional to the filter value. In this work we present a simple method to generate random samples having an underlying B-spline density function. To reduce error it is important to stratify the samples, akin to jittering for uniform sampling. We provide an algebraic and a numerical technique for doing this for B-spline kernals of degree 1, 2, and 3. 1

Michael Stark; Peter Shirley; Michael Ashikhmin

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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461

Sampling Distribution of the Time between Effectively Independent Samples  

Science Conference Proceedings (OSTI)

The sampling distribution of the estimate of the “time between effectively independent samples,” T0, is investigated using Monte-Carlo techniques. It is found to be asymptotically unbiased and normally distributed. Agreement between empirical ...

Daniel Wilks

1987-03-01T23:59:59.000Z

462

Aperiodic dynamical decoupling sequences in the presence of pulse errors  

SciTech Connect

Dynamical decoupling (DD) is a promising tool for preserving the quantum states of qubits. However, small imperfections in the control pulses can seriously affect the fidelity of decoupling, and qualitatively change the evolution of the controlled system at long times. Using both analytical and numerical tools, we theoretically investigate the effect of the pulse error accumulation for two aperiodic DD sequences, Uhrig's DD (UDD) protocol (Uhrig 2007 Phys. Rev. Lett. 98 100504), and the quadratic DD (QDD) protocol (West et al 2010 Phys. Rev. Lett. 104 130501). We consider the implementation of these sequences using the electron spins of phosphorus donors in silicon, where DD sequences are applied to suppress dephasing of the donor spins. The dependence of the decoupling fidelity on different initial states of the spins is the focus of our study. We investigate in detail the initial drop in the DD fidelity, and its long-term saturation. We also demonstrate that by applying the control pulses along different directions, the performance of QDD protocols can be noticeably improved, and explain the reason for such an improvement. Our results can be useful for future implementations of the aperiodic decoupling protocols, and for better understanding of the impact of errors on quantum control of spins.

Wang, Zhi-Hui; Dobrovitski, V. V.

2011-01-12T23:59:59.000Z

463

Characterization and Impact of Extreme Forecast Errors on Power Systems  

SciTech Connect

Extreme events in the electrical power system, caused by the load and wind forecasting errors, can impact the power system infrastructure via two main avenues. The first avenue is a sudden and significant power unbalance exceeding reasonable operating reserve capacity. The second is a sudden increase of power flows on the system critical paths causing transmission violations. The challenge in managing these system unbalances is more significant for a standalone balancing area operation. The consolidation of balancing authorities into a single balancing area can offset the operating reserve problem but this strategy enhances incremental power flows on the transmission interfaces, potentially leading to more unpredictable transmission congestion. This paper evaluates the expectancy of occurrence of tail events due to forecast error extremes using California ISO and BPA data. Having this type of information, independent system operators and operating utilities could be better prepared to address the tail events by exploring alternative reserve options such as: wide area control coordination, new operating proce-dures and remedial actions.

Heydt, Gerald T.; Vittal, Vijay; Malhara, Sunita V.; Makarov, Yuri V.; Zhou, Ning; Etingov, Pavel V.

2011-12-15T23:59:59.000Z

464

Using Singular Value Decomposition to Parameterize State-Dependent Model Errors  

Science Conference Proceedings (OSTI)

The purpose of the present study is to use a new method of empirical model error correction, developed by Danforth et al. in 2007, based on estimating the systematic component of the nonperiodic errors linearly dependent on the anomalous state. ...

Christopher M. Danforth; Eugenia Kalnay

2008-04-01T23:59:59.000Z

465

Reducing Orbit Error for a Better Estimate of oceanic Variability from Satellite Altimetry  

Science Conference Proceedings (OSTI)

The variable ocean dynamic topography is generally estimated from the satellite altimeter signal once the orbit error has been removed. To compute the orbit error, the most conventional technique is to fit a polynomial function (zeroth, first, or ...

F. Blanc; P. Y. Le Traon; S. Houry

1995-02-01T23:59:59.000Z

466

Awareness of both type I and II errors in climate science and assessment  

Science Conference Proceedings (OSTI)

Treatment of error and uncertainty is an essential component of science and is crucial in policy-relevant disciplines such as climate science. We posit here that awareness of both “false positive” and “false negative” errors is particularly critical in ...

William R. L. Anderegg; Elizabeth S. Callaway; Maxwell T. Boykoff; Gary Yohe; Terry L. Root

467

The Impact of Satellite Sounding Data on the Systematic Error of a Numerical Weather Prediction Model  

Science Conference Proceedings (OSTI)

The impact of satellite sounding data on the systematic errors of the numerical weather prediction model of the Israel Meteorological Service has been investigated. In general, satellite data have been shown to reduce systematic error, and in ...

Noah Wolfson; Albert Thomasell; Arnold Gruber; George Ohring

1985-06-01T23:59:59.000Z

468

A Single-Station Approach to Model Output Statistics Temperature Forecast Error Assessment  

Science Conference Proceedings (OSTI)

Error characteristics of model output statistics (MOS) temperature forecasts are calculated for over 200 locations around the continental United States. The forecasts are verified on a station-by-station basis for the year 2001. Error measures ...

Andrew A. Taylor; Lance M. Leslie

2005-12-01T23:59:59.000Z

469

A realistic evaluation of memory hardware errors and software system susceptibility  

Science Conference Proceedings (OSTI)

Memory hardware reliability is an indispensable part of whole-system dependability. This paper presents the collection of realistic memory hardware error traces (including transient and non-transient errors) from production computer systems with more ...

Xin Li; Michael C. Huang; Kai Shen; Lingkun Chu

2010-06-01T23:59:59.000Z

470

Automated repair of HTML generation errors in PHP applications using string constraint solving  

Science Conference Proceedings (OSTI)

PHP web applications routinely generate invalid HTML. Modern browsers silently correct HTML errors, but sometimes malformed pages render inconsistently, cause browser crashes, or expose security vulnerabilities. Fixing errors in generated pages is usually ...

Hesam Samimi; Max Schäfer; Shay Artzi; Todd Millstein; Frank Tip; Laurie Hendren

2012-06-01T23:59:59.000Z

471

V-172: ISC BIND RUNTIME_CHECK Error Lets Remote Users Deny Service...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Addthis Related Articles U-038: BIND 9 Resolver crashes after logging an error in query.c U-039: ISC Update: BIND 9 Resolver crashes after logging an error in query.c T-662:...

472

Truncation Error Estimates for Refinement Criteria in Nested and Adaptive Models  

Science Conference Proceedings (OSTI)

Truncation error estimates are considered as criteria for fine-grid placement and movement in nested and adaptive finite-difference atmospheric models. A simple method for calculating the truncation error at any time during an integration is ...

William C. Skamrock

1989-04-01T23:59:59.000Z

473

U-041: Google Chrome Out-of-Bounds Write Error Lets Remote Users...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1: Google Chrome Out-of-Bounds Write Error Lets Remote Users Execute Arbitrary Code U-041: Google Chrome Out-of-Bounds Write Error Lets Remote Users Execute Arbitrary Code November...

474

V-109: Google Chrome WebKit Type Confusion Error Lets Remote...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9: Google Chrome WebKit Type Confusion Error Lets Remote Users Execute Arbitrary Code V-109: Google Chrome WebKit Type Confusion Error Lets Remote Users Execute Arbitrary Code...

475

A Stochastic-Dynamic Model for the Spatial Structure of Forecast Error Statistics  

Science Conference Proceedings (OSTI)

A simple model that yields the spatial correlation structure of global atmospheric mass-field forecast errors is derived. The model states that the relative potential vorticity of the forecast error is forced by spatially multi-dimensional white ...

R. Balgovind; A. Dalcher; M. Ghil; E. Kalnay

1983-04-01T23:59:59.000Z

476

Relationship between Precipitation Forecast Errors and Skill Scores of Dichotomous Forecasts  

Science Conference Proceedings (OSTI)

In this paper, the sensitivities of the equitable threat score (ETS) and the true skill score (TSS), obtained with a 2 × 2 contingency table, to continuous precipitation forecast errors are investigated. Two idealized error models are adopted to ...

Nazario Tartaglione

2010-02-01T23:59:59.000Z

477

Evolution of Analysis Error and Adjoint-Based Sensitivities: Implications for Adaptive Observations  

Science Conference Proceedings (OSTI)

The structure and evolution of analysis error and adjoint-based sensitivities [potential enstrophy initial singular vectors (SVs) and gradient sensitivities of the forecast error to initial conditions] are compared following a cyclone development ...

Hyun Mee Kim; Michael C. Morgan; Rebecca E. Morss

2004-04-01T23:59:59.000Z

478

U-063: RSA SecurID Software Token for Windows DLL Loading Error...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3: RSA SecurID Software Token for Windows DLL Loading Error Lets Remote Users Execute Arbitrary Code U-063: RSA SecurID Software Token for Windows DLL Loading Error Lets Remote...

479

The Effect of Serially Correlated Observation and Model Error on Atmospheric Data Assimilation  

Science Conference Proceedings (OSTI)

Observation error statistics are required in most atmospheric data assimilation systems. While observation errors are often assumed to be spatially correlated, serial correlations have received virtually no attention. In this article, the effect ...

Roger Daley

1992-01-01T23:59:59.000Z

480

The Effect of Satellite Rainfall Error Modeling on Soil Moisture Prediction Uncertainty  

Science Conference Proceedings (OSTI)

This study assesses the impact of satellite rainfall error structure on soil moisture simulations with the NASA Catchment land surface model. Specifically, the study contrasts a complex satellite rainfall error model (SREM2D) with the standard ...

Viviana Maggioni; Rolf H. Reichle; Emmanouil N. Anagnostou

2011-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "text sampling errors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Sensitivity of the Systematic Error of Extended Range Forecasts to Sea Surface Temperature Anomalies  

Science Conference Proceedings (OSTI)

The sensitivity of the systematic error of extended-range forecasts to sea surface temperature (SST) anomalies is investigated. General circulation model (GCM) experiments were performed to quantify error patterns for warm, normal, and cold SST ...

Kingtse C. Mo; X. L. Wang

1995-06-01T23:59:59.000Z

482

Effective Error Bounds in Euler-Maclaurin-Based QuadratureSchemes  

SciTech Connect

We analyze the behavior of Euler-Maclaurin-basedintegrationschemes with the intention of deriving accurate andeconomicestimations of the error term.

Bailey, David H.; Borwein, Jonathan M.

2005-06-21T23:59:59.000Z

483

Error estimation for the HHT method in non-linear solid dynamics  

Science Conference Proceedings (OSTI)

This work presents a new error estimator that can be used in both linear and non-linear solid and structural dynamic problems. Specifically, this estimator is developed for the Hilber-Hughes-Taylor (HHT) method and it takes into account the error made ... Keywords: Error estimation, Finite elements, Solid dynamics, Structural dynamics, Time integration

Luis M. Lacoma; Ignacio Romero

2007-02-01T23:59:59.000Z

484

Error encoding and decoding model over communication channel for synthesis of proteins from DNA sequences  

Science Conference Proceedings (OSTI)

The expression 'error correcting code' can be understood as a code with the ability to detect and correct the presence of errors caused by noise or other impairments or mutations during transmission from the transmitter/nucleus to the receiver/organelle. ... Keywords: Reed-Muller code, biological systems, coding theory, encoding DNA sequences, error correcting codes, information transmission

Prajna Paramita Debata; Satyabrata Das; Debahuti Mishra; Sashikala Mishra; Kailash Shaw; Gayatri Mahapatro

2012-08-01T23:59:59.000Z

485

New autoregressive (AR) order selection criteria based on the prediction error estimation  

Science Conference Proceedings (OSTI)

The most important problem in data modeling using the AR model is the order selection. Some AR order selection criteria estimate the prediction error and choose the order that minimizes this estimated prediction error. All of these criteria use the same ... Keywords: Autoregressive model order selection, Least-Squares-Forward method, Prediction error

S. Khorshidi; M. Karimi; A. R. Nematollahi

2011-10-01T23:59:59.000Z

486

A Displacement-Based Error Measure Applied in a Regional Ensemble Forecasting System  

Science Conference Proceedings (OSTI)

Errors in regional forecasts often take the form of phase errors, where a forecasted weather system is displaced in space or time. For such errors, a direct measure of the displacement is likely to be more valuable than traditional measures. A ...

Christian Keil; George C. Craig

2007-09-01T23:59:59.000Z

487

Circuit optimization techniques to mitigate the effects of soft errors in combinational logic  

Science Conference Proceedings (OSTI)

Soft errors in combinational logic circuits are emerging as a significant reliability problem for VLSI designs. Technology scaling trends indicate that the soft error rates (SER) of logic circuits will be dominant factor for future technology generations. ... Keywords: Soft errors, circuit optimization, combinational logic, sequential circuits

Rajeev R. Rao; Vivek Joshi; David Blaauw; Dennis Sylvester

2009-12-01T23:59:59.000Z

488

DRAM errors in the wild: a large-scale field study  

Science Conference Proceedings (OSTI)

Errors in dynamic random access memory (DRAM) are a common form of hardware failure in modern compute clusters. Failures are costly both in terms of hardware replacement costs and service disruption. While a large body of work exists on DRAM in laboratory ... Keywords: data corruption, dimm, dram, dram reliability, ecc, empirical study, hard error, large-scale systems, memory, soft error

Bianca Schroeder; Eduardo Pinheiro; Wolf-Dietrich Weber

2009-06-01T23:59:59.000Z

489

Systematic rotation and receiver-location error effects on parabolic-trough annual performance  

DOE Green Energy (OSTI)

The effects of certain systematic errors on performance and, therefore, their influence on the design of troughs are studied. The technique for calculating the influence of systematic errors on performance is outlined and methods for identifying and minimizing these errors are suggested.

Treadwell, G.W.; Grandjean, N.R.

1981-04-01T23:59:59.000Z

490

Sampling Characteristics of Satellite Orbits  

Science Conference Proceedings (OSTI)

The irregular space-time sampling of any finite region by an orbiting satellite raises difficult questions as to which frequencies and wavenumbers can be determined and which will alias into others. Conventional sampling theorems must be extended ...

Carl Wunsch

1989-12-01T23:59:59.000Z

491

Flux Measurement with Conditional Sampling  

Science Conference Proceedings (OSTI)

A method is proposed to measure scalar fluxes using conditional sampling. Only the mean concentrations of updraft and downdraft samples, the standard deviation of the vertical velocity, and a coefficient of proportionality, b, need to be known. ...

Joost A. Businger; Steven P. Oncley

1990-04-01T23:59:59.000Z

492

Sampling – Soil - Energy Innovation Portal  

INL has developed a method for sampling soil to determine the presence of extremely fine particles such as asbestos.

493

Purify: Fast detection of memory leaks and access errors  

E-Print Network (OSTI)

This paper describes Purifyru, a software testing and quality assurance Ool that detects memory leaks and access erors. Purify inserts additional checking instructions directly into the object code produced by existing compilers. These instructions check every memory read and write performed by the program-under-test and detect several types of access errors, such as reading uninitialized memory or witing to freed memory. Purify inserts checking logic into all of the code in a program, including third-party and vendor object-code libraries, and verifies system call interfaces. In addition, Purify tracks memory usage and identifies individual memory leals using a novel adaptation of garbage collection techniques. Purify produce standard executable files compatible with existing debuggers, and currently runs on Sun Microsystems ' SPARC family of workstations. Purify's neafly-comprehensive memory access checking slows the target program down typically by less than a facor of three and has resulted in significantly more reliable software for several development goups. L.

Reed Hastings; Bob Joyce

1991-01-01T23:59:59.000Z

494

Improving the efficiency of decoding quantum error correction code  

E-Print Network (OSTI)

To improve the efficiency of the encoding and the decoding is the important problem in the quantum error correction. In a preceding work, a general algorithm for decoding the stabilizer code is shown. This paper will show an decoding which is more efficient for some codes. The proposed decoding as well as the conventional decoding consists of the eigenvalue output step and the entanglement dissolution step. The proposed decoding outputs a part of the eigenvalues into a part of the code qubits in contrast to the conventional method's outputting into the ancilla. Besides, the proposed decoding dissolves a part of the entanglement in the eigenvalue output step in contrast to the conventional method which does not dissolve in the eigenvalue output step. With these improvements, the number of gates was reduced for some codes.

Kenichiro Furuta

2006-08-21T23:59:59.000Z

495

Improving the efficiency of decoding quantum error correction code  

E-Print Network (OSTI)

To improve the efficiency of the encoding and the decoding is the important problem in the quantum error correction. In a preceding work, a general algorithm for decoding the stabilizer code is shown. This paper will show an decoding which is more efficient for some codes. The proposed decoding as well as the conventional decoding consists of the eigenvalue output step and the entanglement dissolution step. The proposed decoding outputs a part of the eigenvalues into a part of the code qubits in contrast to the conventional method's outputting into the ancilla. Besides, the proposed decoding dissolves a part of the entanglement in the eigenvalue output step in contrast to the conventional method which does not dissolve in the eigenvalue output step. With these improvements, the number of gates was reduced for some codes.

Furuta, K

2006-01-01T23:59:59.000Z

496

Coordinated joint motion control system with position error correction  

DOE Patents (OSTI)

Disclosed are an articulated hydraulic machine supporting, control system and control method for same. The articulated hydraulic machine has an end effector for performing useful work. The control system is capable of controlling the end effector for automated movement along a preselected trajectory. The control system has a position error correction system to correct discrepancies between an actual end effector trajectory and a desired end effector trajectory. The correction system can employ one or more absolute position signals provided by one or more acceleration sensors supported by one or more movable machine elements. Good trajectory positioning and repeatability can be obtained. A two-joystick controller system is enabled, which can in some cases facilitate the operator's task and enhance their work quality and productivity.

Danko, George (Reno, NV)

2011-11-22T23:59:59.000Z

497

Coordinated joint motion control system with position error correction  

SciTech Connect

Disclosed are an articulated hydraulic machine supporting, control system and control method for same. The articulated hydraulic machine has an end effector for performing useful work. The control system is capable of controlling the end effector for automated movement along a preselected trajectory. The control system has a position error correction system to correct discrepancies between an actual end effector trajectory and a desired end effector trajectory. The correction system can employ one or more absolute position signals provided by one or more acceleration sensors supported by one or more movable machine elements. Good trajectory positioning and repeatability can be obtained. A two-joystick controller system is enabled, which can in some cases facilitate the operator's task and enhance their work quality and productivity.

Danko, George (Reno, NV)

2011-11-22T23:59:59.000Z

498

Improved Characterization of Transmitted Wavefront Error on CADB Epoxy-Free Bonded Solid State Laser Materials  

Science Conference Proceedings (OSTI)

Current state-of-the-art and next generation laser systems - such as those used in the NIF and LIFE experiments at LLNL - depend on ever larger optical elements. The need for wide aperture optics that are tolerant of high power has placed many demands on material growers for such diverse materials as crystalline sapphire, quartz, and laser host materials. For such materials, it is either prohibitively expensive or even physically impossible to fabricate monolithic pieces with the required size. In these cases, it is preferable to optically bond two or more elements together with a technique such as Chemically Activated Direct Bonding (CADB{copyright}). CADB is an epoxy-free bonding method that produces bulk-strength bonded samples with negligible optical loss and excellent environmental robustness. The authors have demonstrated CADB for a variety of different laser glasses and crystals. For this project, they will bond quartz samples together to determine the suitability of the resulting assemblies for large aperture high power laser optics. The assemblies will be evaluated in terms of their transmitted wavefront error, and other optical properties.

Bayramian, A

2010-12-09T23:59:59.000Z

499

Entanglement and Quantum Error Correction with Superconducting Qubits  

E-Print Network (OSTI)

A quantum computer will use the properties of quantum physics to solve certain computational problems much faster than otherwise possible. One promising potential implementation is to use superconducting quantum bits in the circuit quantum electrodynamics (cQED) architecture. There, the low energy states of a nonlinear electronic oscillator are isolated and addressed as a qubit. These qubits are capacitively coupled to the modes of a microwave-frequency transmission line resonator which serves as a quantum communication bus. Microwave electrical pulses are applied to the resonator to manipulate or measure the qubit state. State control is calibrated using diagnostic sequences that expose systematic errors. Hybridization of the resonator with the qubit gives it a nonlinear response when driven strongly, useful for amplifying the measurement signal to enhance accuracy. Qubits coupled to the same bus may coherently interact with one another via the exchange of virtual photons. A two-qubit conditional phase gate mediated by this interaction can deterministically entangle its targets, and is used to generate two-qubit Bell states and three-qubit GHZ states. These three-qubit states are of particular interest because they redundantly encode quantum information. They are the basis of the quantum repetition code prototypical of more sophisticated schemes required for quantum computation. Using a three-qubit Toffoli gate, this code is demonstrated to autonomously correct either bit- or phase-flip errors. Despite observing the expected behavior, the overall fidelity is low because of decoherence. A superior implementation of cQED replaces the transmission-line resonator with a three-dimensional box mode, increasing lifetimes by an order of magnitude. In-situ qubit frequency control is enabled with control lines, which are used to fully characterize and control the system Hamiltonian.

Matthew Reed

2013-11-26T23:59:59.000Z

500

Full Text  

E-Print Network (OSTI)

Department of Mathematics, Michigan State University, East Lansing, MI 48824- 1027, USA. Received June 29, 1999. Abstract. Stanley (Advances in Math. 111 ...