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Selecting significant genes by randomization test for cancer classification using gene expression data.

Abstract：

:Gene selection is an important task in bioinformatics studies, because the accuracy of cancer classification generally depends upon the genes that have biological relevance to the classifying problems. In this work, randomization test (RT) is used as a gene selection method for dealing with gene expression data. In the method, a statistic derived from the statistics of the regression coefficients in a series of partial least squares discriminant analysis (PLSDA) models is used to evaluate the significance of the genes. Informative genes are selected for classifying the four gene expression datasets of prostate cancer, lung cancer, leukemia and non-small cell lung cancer (NSCLC) and the rationality of the results is validated by multiple linear regression (MLR) modeling and principal component analysis (PCA). With the selected genes, satisfactory results can be obtained.

journal_name

J Biomed Inform

journal_title

Journal of biomedical informatics

authors

Mao Z,Cai W,Shao X

doi

10.1016/j.jbi.2013.03.009

subject

Has Abstract

pub_date

2013-08-01 00:00:00

pages

594-601

issue

4

eissn

1532-0464

issn

1532-0480

pii

S1532-0464(13)00043-9

journal_volume

46

pub_type

杂志文章

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