2011•Computer Engineering and Applications JournalRequires access

New method of attribute reduction algorithm for inconsistent decision table

Haitao Liu, Zhai Jingmei, Xiao Xu

Abstract

In order to solve the disadvantages of the attribute reduction algorithm for inconsistent decision table,combining information view and the algebra view in rough set,the discernibility matrix is improved,a new method of attribute reduction algorithm is presented,which reduces the time complexity in the case of the positive regions and information entropy unchanged after attribute reduction.The example of computing and analyzing with the proposed method shows its advantages and feasibility.

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Key concepts: Rough set, Decision table, Reduction (mathematics), Entropy (arrow of time), Attribute domain, Algorithm, Computer science, Matrix (chemical analysis)