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IEEE Trans Nanobioscience. 2010 Mar;9(1):31-7. doi: 10.1109/TNB.2009.2035284. Epub 2009 Oct 30.

SVM-RFE with MRMR filter for gene selection.

Author information

1
BioInformatics Research Centre, School of Computer Engineering, Nanyang Technological University, 637553, Singapore.

Abstract

We enhance the support vector machine recursive feature elimination (SVM-RFE) method for gene selection by incorporating a minimum-redundancy maximum-relevancy (MRMR) filter. The relevancy of a set of genes are measured by the mutual information among genes and class labels, and the redundancy is given by the mutual information among the genes. The method improved identification of cancer tissues from benign tissues on several benchmark datasets, as it takes into account the redundancy among the genes during their selection. The method selected a less number of genes compared to MRMR or SVM-RFE on most datasets. Gene ontology analyses revealed that the method selected genes that are relevant for distinguishing cancerous samples and have similar functional properties. The method provides a framework for combining filter methods and wrapper methods of gene selection, as illustrated with MRMR and SVM-RFE methods.

PMID:
19884101
DOI:
10.1109/TNB.2009.2035284
[Indexed for MEDLINE]

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