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In this article, a new method for lower approximation reduction is introduced in inconsistent ordered information systems (IOIS). The dominance matrix and lower approximation decision matrix are proposed in information systems based on dominance relations. Furthermore, the algorithm of lower approximation reduction is obtained, from which we can provide approach to lower approximation reduction operated...
This article presents an approach of knowledge acquisition based on rough fuzzy sets, which combines features of rough sets and fuzzy sets. The continuous attributes in the decision table are fuzzified with fuzzy membership functions. The domain partition is accomplished after establishing fuzzy similarity matrix. Attributes reduction can be obtained using rough-fuzzy dependency, and then decision...
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