Knowledge reduction in inconsistent set-valued decision information system
Wen‐Xiu Zhang · Computer Engineering and Applications Journal · 2009
This paper presents two types of the reduction in an inconsistent set-valued decision information system (DIS).The judgment theorem and the discernibility matrix of the possible reduct and the partly-accordant reduct are given,from which we provide a material approach to knowledge reduction.A possible consistent set is a subset of the attribute set that preserves all possible decision classes.A partly-accordant consistent set is a subset of the attribute set that preserves accordant decision classes of partly object.