skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Methods for consistent forewarning of critical events across multiple data channels

Abstract

This invention teaches further method improvements to forewarn of critical events via phase-space dissimilarity analysis of data from biomedical equipment, mechanical devices, and other physical processes. One improvement involves conversion of time-serial data into equiprobable symbols. A second improvement is a method to maximize the channel-consistent total-true rate of forewarning from a plurality of data channels over multiple data sets from the same patient or process. This total-true rate requires resolution of the forewarning indications into true positives, true negatives, false positives and false negatives. A third improvement is the use of various objective functions, as derived from the phase-space dissimilarity measures, to give the best forewarning indication. A fourth improvement uses various search strategies over the phase-space analysis parameters to maximize said objective functions. A fifth improvement shows the usefulness of the method for various biomedical and machine applications.

Inventors:
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176003
Patent Number(s):
7,139,677
Application Number:
10/195,626
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Hively, Lee M. Methods for consistent forewarning of critical events across multiple data channels. United States: N. p., 2006. Web.
Hively, Lee M. Methods for consistent forewarning of critical events across multiple data channels. United States.
Hively, Lee M. Tue . "Methods for consistent forewarning of critical events across multiple data channels". United States. https://www.osti.gov/servlets/purl/1176003.
@article{osti_1176003,
title = {Methods for consistent forewarning of critical events across multiple data channels},
author = {Hively, Lee M.},
abstractNote = {This invention teaches further method improvements to forewarn of critical events via phase-space dissimilarity analysis of data from biomedical equipment, mechanical devices, and other physical processes. One improvement involves conversion of time-serial data into equiprobable symbols. A second improvement is a method to maximize the channel-consistent total-true rate of forewarning from a plurality of data channels over multiple data sets from the same patient or process. This total-true rate requires resolution of the forewarning indications into true positives, true negatives, false positives and false negatives. A third improvement is the use of various objective functions, as derived from the phase-space dissimilarity measures, to give the best forewarning indication. A fourth improvement uses various search strategies over the phase-space analysis parameters to maximize said objective functions. A fifth improvement shows the usefulness of the method for various biomedical and machine applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {11}
}

Patent:

Save / Share:

Works referenced in this record:

The analysis of observed chaotic data in physical systems
journal, October 1993

  • Abarbanel, Henry D. I.; Brown, Reggie; Sidorowich, John J.
  • Reviews of Modern Physics, Vol. 65, Issue 4
  • DOI: 10.1103/RevModPhys.65.1331

Anticipation of epileptic seizures from standard EEG recordings
journal, January 2001


Detecting dynamical change in nonlinear time series
journal, July 1999


Measuring the distance between time series
journal, April 1997