NDLI: Gene Co-Adaboost: a semi-supervised approach for classifying gene expression data

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Gene Co-Adaboost: a semi-supervised approach for classifying gene expression data

Content Provider	ACM Digital Library
Author	Du, Nan Schwartz, Stanley A. Li, Kang Hsiao, Chiu Bin Mahajan, Supriya D. Nair, Bindukumar B. Zhang, Aidong
Abstract	Co-training has been proved successful in classifying many different kinds of data, such as text data and web data, which have naturally split views. Using these views as feature sets respectively, classifiers could make less generalization errors by maximizing their agreement over the unlabeled data. However, this method has limited performance in gene expression data. The first reason is that most gene expression data lacks of naturally split views. The second reason is that there are usually some noisy samples in the gene expression dataset. Furthermore, some semi-supervised algorithms prefer to add these misclassified samples to the training set, which will mislead the classification. In this paper, a Co-training based algorithm named Gene Co-Adaboost is proposed to utilize limitedly labeled gene expression samples to predict the class variables. This method splits the gene features into relatively independent views and keeps the performance stable by refusing to add unlabeled examples that may be wrongly labeled to the training set with a Cascade Judgment technique. Experiments on four public microarray datasets indicate that Gene Co-Adaboost effectively uses the unlabeled samples to improve the classification accuracy.
Starting Page	531
Ending Page	535
Page Count	5
File Format	PDF
ISBN	9781450307963
DOI	10.1145/2147805.2147892
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-08-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Multi-views Co-training Gene co-adaboost Gene features split Cascade judgment
Content Type	Text
Resource Type	Article

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