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CorrDA: correlation-matrix driven discriminant analysis

delete2026-04-01
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PRE
AI
Y
Yan, Feifei
S
Shu, Hai
C
Chen, Ziqi
DOI:10.1080/24754269.2026.2652551delete
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Abstract

Abstract

En 中文
This article introduces a novel approach to integrating correlation matrix information from training samples to construct a classification rule for testing samples. Traditional discriminant analysis methods that rely solely on mean vectors tend to perform poorly when the mean of the training samples is not indicative of the testing samples. To address this limitation, we propose a new discriminant analysis method called Correlation-matrix driven Discriminant Analysis (CorrDA). By considering the correlation matrices of different classes in the training samples, we can capture the unique patterns among the classes. CorrDA utilizes the Bayes classifier and mixture models to effectively incorporate the correlation matrix information derived from the training samples, thereby improving the discriminant analysis performance on the testing data. Through the analysis of COVID-19 datasets and extensive simulation studies, we provide empirical evidence demonstrating the superior performance of CorrDA.
Keywords:
Bayes classifier
correlation matrix
classification
EM algorithm
mixture model
pseudo-likelihood

Journal

S
Statistical Theory and Related Fields
IF:
1.3
Papers:
28
Citations:
0

Organization

U
utmd anderson cancer center
Scholars:
3.0W
Papers: 2.4W
Citations: 27
E
east china normal university
Scholars:
3.0W
Papers: 2.1W
Citations: 25
Z
zhoukou normal university
Scholars:
413
Papers: 171
Citations: 0
U
university of texas system
Scholars:
18.5W
Papers: 15.6W
Citations: 210
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