Title :
Axiomatic Approaches of Rough Set Approximation Operators in Fuzzy Formal Contexts
Author :
Song, Xiao-Xue ; Wang, Xia
Author_Institution :
Dept. of Comput., Xi´´an Jiaotong Univ., Xi´´an, China
Abstract :
The purpose of this paper is to study the axiomatic approaches of rough set approximation operators in fuzzy formal contexts. We first define four types of fuzzy conceptual knowledge system, and then the axiomatic characterization for rough approximations operators is presented. The axioms that must be satisfied by the operators are stated.
Keywords :
fuzzy logic; fuzzy set theory; knowledge based systems; rough set theory; axiomatic characterization; fuzzy conceptual knowledge system; fuzzy formal contexts; rough set approximation operators; Educational institutions; Fuzzy logic; Fuzzy sets; Fuzzy systems; Knowledge based systems; Lattices; Mathematics; Physics computing; Programmable logic arrays; Set theory;
Conference_Titel :
Fuzzy Systems and Knowledge Discovery, 2009. FSKD '09. Sixth International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-0-7695-3735-1
DOI :
10.1109/FSKD.2009.158
