Abstract
In order to correct some problems of computing the core of a decision table,an improved binary discernable matrix definition based on distribution function for computing the core was put forward in this paper.The improved binary discernable matrix is not only small in scale but also suitable for any decision tables for computing the core.A new algorithm for attribute reduction in inconsistent decision tables was also presented based on getting the core.Only increasing appropriate rows in the improved binary discernable matrix for computing the core,attribution reduction will be obtained by utilizing logic operation.And the absorptive law was used in attribution reduction,which raised the efficiency of attribute reduction greatly.
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