Letters: Kernel subclass discriminant analysis

Authors:
Bo Chen;Li Yuan;Hongwei Liu;Zheng Bao
Affiliations:
National Lab of Radar Signal Processing, Xidian University, Xi'an, Shaanxi 710071, China;National Lab of Radar Signal Processing, Xidian University, Xi'an, Shaanxi 710071, China;National Lab of Radar Signal Processing, Xidian University, Xi'an, Shaanxi 710071, China;National Lab of Radar Signal Processing, Xidian University, Xi'an, Shaanxi 710071, China
Venue:
Neurocomputing
Year:
2007

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Abstract

In order to overcome the restricts of linear discriminant analysis (LDA), such as multivariate Normal distributed classes with equal covariance matrix but different means and the single-cluster structure in each class, subclass discriminant analysis (SDA) is proposed recently. In this paper the kernel SDA is presented, called KSDA. Moreover, we reformulate SDA so as to avoid the complicated derivation in the feature space. The encouraging experimental results on eight UCI data sets demonstrate the efficiency of our method.