NDLI: A novel SPDF ensemble classifier for cancer classification

Content Provider	IEEE Xplore Digital Library
Author	Chunying Zhang Fang Wu Tuopeng Tong Sun Chen Kai Song Min Ma Guangqiang Zheng
Copyright Year	2013
Description	Author affiliation: Sch. of Chem. Eng. & Technol., Tianjin Univ., Tianjin, China (Chunying Zhang; Fang Wu; Tuopeng Tong; Sun Chen; Kai Song; Min Ma; Guangqiang Zheng)
Abstract	To gain more accurate and reliable cancer classification results through DNA microarray analysis, a novel ensemble classifier SPDF (Subspace Partial least square based Decision Forest) is developed. The original data are split into subspaces by column. For each subspace, partial least square (PLS) is applied to extract orthogonal latent variables (LVs). In conjunction with the Minimal Redundancy and Maximal Relevance (MRMR) as the gene-selection preprocessing method, the adverse effect of the too high dimensional variables with too small samples could be overcome successfully. Then, all available LVs are aggregated as the new training data where the Decision Forest is trained for classification. Therefore relying on the feature extraction power of PLS and the orthogonality of LVs, the multi-colinearity and high noise inherent in microarray data could be eliminated effectively. Moreover, the Decision Forest could enhance the data variety and further lighten the dependence of the classification results to the given data. The applications to two microarray datasets show that compared with Rotation Forest, Bagging and Boosting, the new SPDF method yields consistently accurate and robust predictive performance, with the maximal improvement reaching 7.26% in terms of classification accuracy on the Colon cancer classification.
Sponsorship	IEEE Circuits Syst. Soc.
Starting Page	1037
Ending Page	1041
File Size	373563
Page Count	5
File Format	PDF
ISBN	9781467347143
ISSN	21579563
DOI	10.1109/ICNC.2013.6818129
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Accuracy Input variables feature extraction microarray data analysis Boosting ensemble classifier Colon Decision trees cancer classification partial least squares Bagging Cancer
Content Type	Text
Resource Type	Article

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