TITLE:
Lower Approximation Reduction in Ordered Information System with Fuzzy Decision
AUTHORS:
Xiaoyan Zhang, Weihua Xu
KEYWORDS:
Fuzzy Decision, Lower Approximation Reduction, Ordered Information Systems, Rough Set
JOURNAL NAME:
Applied Mathematics,
Vol.2 No.7,
July
15,
2011
ABSTRACT: Attribute reduction is one of the most important problems in rough set theory. This paper introduces the concept of lower approximation reduction in ordered information systems with fuzzy decision. Moreover, the judgment theorem and discernable matrix are obtained, in which case an approach to attribute reduction in ordered information system with fuzzy decision is constructed. As an application of lower approximation reduction, some examples are applied to examine the validity of works obtained in our works..