Title
Biomarker discovery using 1-norm regularization for multiclass earthworm microarray gene expression data
Abstract
Novel biomarkers can be discovered through mining high dimensional microarray datasets using machine learning techniques. Here we propose a novel recursive gene selection method which can handle the multiclass setting effectively and efficiently. The selection is performed iteratively. In each iteration, a linear multiclass classifier is trained using 1-norm regularization, which leads to sparse weight vectors, i.e., many feature weights are exactly zero. Those zero-weight features are eliminated in the next iteration. The empirical results demonstrate that the selected features (genes) have very competitive discriminative power. In addition, the selection process has fast rate of convergence.
Year
DOI
Venue
2012
10.1016/j.neucom.2011.09.035
Neurocomputing
Keywords
DocType
Volume
1-norm regularization,empirical result,next iteration,fast rate,selection process,biomarker discovery,novel biomarkers,expression data,novel recursive gene selection,multiclass earthworm microarray gene,feature weight,competitive discriminative power,linear multiclass classifier,multiclass classification
Journal
92,
ISSN
Citations 
PageRank 
0925-2312
4
0.47
References 
Authors
14
6
Name
Order
Citations
PageRank
Xiaofei Nan11347.18
Nan Wang2140.94
Ping Gong3462.30
Chaoyang Zhang423022.23
Yixin Chen5342.23
Dawn , Wilkins641527.30