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  2016, Vol. 29 Issue (8): 682-690    DOI: 10.16451/j.cnki.issn1003-6059.201608002
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Feature Selection via Evolutionary Computation Based on Relative Classification Information Entropy
ZHAI Junhai1, LIU Bo2, ZHANG Sufang3
1.Hebei Province Key Laboratory of Machine Learning and Computational Intelligence, Hebei University, Baoding 071002
2.School of Computer Science and Technology, Hebei University, Baoding 071002
3.Hebei Branch, China Meteorological Administration Training Centre, Baoding 071000

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Abstract  

Aiming at the problem of feature selection from datasets with discrete values, a feature selection approach via evolutionary computation based on relative classification information entropy is proposed. Genetic algorithm is used to search the optimal feature subset and the relative classification information entropy is employed to measure the significance of the feature subset. Specifically, the relative classification information entropy is used as fitness function, the solutions of the problems are encoded with binary number, and the next generation of individuals is produced by using roulette wheel method. The experimental results show that the proposed approach outperforms other methods in testing accuracy. Furthermore, the proposed approach is theoretically proved to be feasible.

Key wordsFeature Selection      Data Preprocessing      Evolutionary Computation      Genetic Algorithm      Information Entropy     
Received: 05 January 2016     
ZTFLH: TP 181  
Fund:

Supported by National Natural Science Foundation of China (No.71371063), Natural Science Foundation of Hebei Province (No.F2013201220), Key Scientific Research Foundation of Education Department of Hebei Province (No.ZD20131028)

About author:: (ZHAI Junhai(Corresponding author), born in 1964, Ph.D., professor. His research interests include machine learning and data mining.)(LIU Bo, born in 1989, master student. His research interests include data mining.)(ZHANG Sufang, born in 1966, master, associate professor. Her research interests include machine learning.)
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Cite this article:   
ZHAI Junhai,LIU Bo,ZHANG Sufang. Feature Selection via Evolutionary Computation Based on Relative Classification Information Entropy[J]. , 2016, 29(8): 682-690.
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http://manu46.magtech.com.cn/Jweb_prai/EN/10.16451/j.cnki.issn1003-6059.201608002      OR     http://manu46.magtech.com.cn/Jweb_prai/EN/Y2016/V29/I8/682
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