Matrix variate logistic regression model with application to EEG data

被引:60
作者
Hung, Hung [1 ]
Wang, Chen-Chien [2 ]
机构
[1] Natl Taiwan Univ, Inst Epidemiol & Prevent Med, Taipei 10764, Taiwan
[2] Acad Sinica, Inst Stat Sci, Taipei 11529, Taiwan
关键词
Asymptotic theory; Logistic regression; Matrix covariate; Regularization; Tensor objects; LIKELIHOOD;
D O I
10.1093/biostatistics/kxs023
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Logistic regression has been widely applied in the field of biomedical research for a long time. In some applications, the covariates of interest have a natural structure, such as that of a matrix, at the time of collection. The rows and columns of the covariate matrix then have certain physical meanings, and they must contain useful information regarding the response. If we simply stack the covariate matrix as a vector and fit a conventional logistic regression model, relevant information can be lost, and the problem of inefficiency will arise. Motivated from these reasons, we propose in this paper the matrix variate logistic (MV-logistic) regression model. The advantages of the MV-logistic regression model include the preservation of the inherent matrix structure of covariates and the parsimony of parameters needed. In the EEG Database Data Set, we successfully extract the structural effects of covariate matrix, and a high classification accuracy is achieved.
引用
收藏
页码:189 / 202
页数:14
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