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Discriminant analysis of plasma fusion data

Abstract

Several discriminant analysis methods has been applied and compared to predict the type of ELM`s in H-mode discharges: (a) quadratic discriminant analysis (linear discriminant analysis being a special case), (b) discrimination by non-parametric (kernel-) density estimates, and (c) discrimination by a product multinomial model on a discretised scale. Practical evaluation was performed using SAS in the first two cases, and INDEP, a standard FORTRAN program, initially developed for medical applications, in the last case. We give here a flavour of the approach and its results. In summary, discriminant analysis can be used as a useful descriptive method of specifying regions where particular types of plasma discharges can be produced. Parametric methods have the advantage of a rather compact mathematical formulation . Pertinent graphical representations are useful to make the theory and the results more palatable to the experimental physicists. (J.P.N.).
Authors:
Kardaun, O J.W.F.; [1]  Kardaun, J W.P.F.; Itoh, S; Itoh, K
  1. Max-Planck-Institut fuer Plasmaphysik, Garching (DE)
Publication Date:
Jun 01, 1992
Product Type:
Technical Report
Report Number:
NIFS-156
Reference Number:
SCA: 700390; PA: JPN-92:012221; SN: 93000919923
Resource Relation:
Other Information: PBD: Jun 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TOKAMAK DEVICES; DATA COMPILATION; REGRESSION ANALYSIS; PROBABILITY; PROBABILISTIC ESTIMATION; MAGNETIC CONFINEMENT; PERFORMANCE TESTING; PLASMA DENSITY; H-MODE PLASMA CONFINEMENT; 700390; OTHER PLASMA PHYSICS STUDIES
OSTI ID:
10120460
Research Organizations:
National Inst. for Fusion Science, Nagoya (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE93754356; TRN: JP9212221
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
15 p.
Announcement Date:
Jun 30, 2005

Citation Formats

Kardaun, O J.W.F., Kardaun, J W.P.F., Itoh, S, and Itoh, K. Discriminant analysis of plasma fusion data. Japan: N. p., 1992. Web.
Kardaun, O J.W.F., Kardaun, J W.P.F., Itoh, S, & Itoh, K. Discriminant analysis of plasma fusion data. Japan.
Kardaun, O J.W.F., Kardaun, J W.P.F., Itoh, S, and Itoh, K. 1992. "Discriminant analysis of plasma fusion data." Japan.
@misc{etde_10120460,
title = {Discriminant analysis of plasma fusion data}
author = {Kardaun, O J.W.F., Kardaun, J W.P.F., Itoh, S, and Itoh, K}
abstractNote = {Several discriminant analysis methods has been applied and compared to predict the type of ELM`s in H-mode discharges: (a) quadratic discriminant analysis (linear discriminant analysis being a special case), (b) discrimination by non-parametric (kernel-) density estimates, and (c) discrimination by a product multinomial model on a discretised scale. Practical evaluation was performed using SAS in the first two cases, and INDEP, a standard FORTRAN program, initially developed for medical applications, in the last case. We give here a flavour of the approach and its results. In summary, discriminant analysis can be used as a useful descriptive method of specifying regions where particular types of plasma discharges can be produced. Parametric methods have the advantage of a rather compact mathematical formulation . Pertinent graphical representations are useful to make the theory and the results more palatable to the experimental physicists. (J.P.N.).}
place = {Japan}
year = {1992}
month = {Jun}
}