Feature subset selection based on fuzzy entropy measures for handling classification problems

Authors:
Jen-Da Shie;Shyi-Ming Chen
Affiliations:
Department of Computer Science and Information Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 106;Department of Computer Science and Information Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 106
Venue:
Applied Intelligence
Year:
2008

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Abstract

In this paper, we present a new method for dealing with feature subset selection based on fuzzy entropy measures for handling classification problems. First, we discretize numeric features to construct the membership function of each fuzzy set of a feature. Then, we select the feature subset based on the proposed fuzzy entropy measure focusing on boundary samples. The proposed method can select relevant features to get higher average classification accuracy rates than the ones selected by the MIFS method (Battiti, R. in IEEE Trans. Neural Netw. 5(4):537---550, 1994), the FQI method (De, R.K., et al. in Neural Netw. 12(10):1429---1455, 1999), the OFEI method, Dong-and-Kothari's method (Dong, M., Kothari, R. in Pattern Recognit. Lett. 24(9):1215---1225, 2003) and the OFFSS method (Tsang, E.C.C., et al. in IEEE Trans. Fuzzy Syst. 11(2):202---213, 2003).