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This paper introduces the concept of minimum correlation decision reduct in inconsistent target information systems based on dominance relation. Moreover the judgment theorem and discernable matrix of the minimum correlation decision reduct are obtained, from which it can effectively provide the approach to this reduction in inconsistent target information systems based on dominance relation. Finally,...
Rough set theory is a new mathematical tool to deal with vagueness and uncertainty. And now it has been widely applied in constructing decision tree which has no hierarchical attributes inside. However, hierarchical attributes exist generally in realistic environment, which leads that decision making has max rules. Using max rules to build decision trees can optimize decision trees and has practical...
The paper studies the fuzziness measure in fuzzy rough sets. By making use of the support set of fuzzy sets, a rough membership function for fuzzy sets based on fuzzy relation is introduced. Simultaneously, a fuzziness measure of fuzzy rough sets from total mean fuzzy degree is proposed. And then, it is proved that the fuzziness measure of fuzzy rough sets, denoted by, equals to zero if the set is...
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