A heuristic algorithm based on attribute importance for feature selection

Authors:
Xingbo Sun;Xiuhua Tang;Huanglin Zeng;Shunyong Zhou
Affiliations:
Dept. of Electronic Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, P.R. China;Dept. of Material & Chemical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, P.R. China;Dept. of Electronic Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, P.R. China;Dept. of Electronic Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, P.R. China
Venue:
RSKT'08 Proceedings of the 3rd international conference on Rough sets and knowledge technology
Year:
2008

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Abstract

In this paper we devote to study some feature selection of an information system in which redundant or insignificant attributes in data sets can be eliminated. An approach of importance gain function is suggested to evaluate the global average information gain associated with a subset of features. A heuristic algorithm on iterative criterion of feature selection on the significance of attributes is proposed to get the least reduction of attribute set in knowledge discovery. The feasibility of feature selection proposed here is validated by some of examples.