A new support vector machine for microarray classification and adaptive gene selection

Authors:
Juntao Li;Yingmin Jia;Junping Du;Fashan Yu
Affiliations:
Seventh Research Division, Beihang University, Beijing, China;Seventh Research Division, Beihang University, Beijing, China;Key Laboratory of Intelligent Telecommunications Software and Multimedia, School of Computer Science and Technology, Beijing University of Posts and Telecommunications, Beijing, China;School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo, Henan, China
Venue:
ACC'09 Proceedings of the 2009 conference on American Control Conference
Year:
2009

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Abstract

This paper presents a new support vector machine for simultaneous gene selection and microarray classification. By introducing the adaptive elastic net penalty which is a convex combination of weighted 1-norm penalty and weighted 2-norm penalty, the proposed support vector machine can encourage an adaptive grouping effect and reduce the shrinkage bias for the large coefficients. According to a reasonable correlation between the two regularization parameters, the optimal coefficient paths are shown to be piecewise linear and the corresponding solving algorithm is developed. Experiments are performed on leukaemia data that verify the research results.