DocumentCode :
41809
Title :
Communication Between Information Systems Using Fuzzy Rough Sets
Author :
Tsang, E.C.C. ; Changzhong Wang ; Degang Chen ; Congxin Wu ; Qinghua Hu
Author_Institution :
Fac. of Inf. Technol., Macao Univ. of Sci. & Technol., Taipa, China
Volume :
21
Issue :
3
fYear :
2013
fDate :
Jun-13
Firstpage :
527
Lastpage :
540
Abstract :
Communication between information systems is a basic problem in granular computing, and the concept of homomorphism is a useful mathematical tool to study this problem. In this paper, some properties of communication between information systems based on fuzzy rough sets are investigated. The concepts of fuzzy relation mappings between universes are first proposed in order to construct a fuzzy relation of one universe according to the given fuzzy relation on the other universe. The main properties of the mappings are studied. The notions of homomorphism of information systems based on fuzzy rough sets are then proposed, and it is proved that properties of relation operations in the original information system and structural features of the system, such as approximations of arbitrary fuzzy sets and attribute reductions, are guaranteed in its image system under the condition of homomorphism.
Keywords :
fuzzy set theory; granular computing; information systems; mathematical analysis; rough set theory; fuzzy relation mappings; fuzzy rough sets; granular computing; homomorphism condition; image system; information system communication; information system homomorphism properties; mathematical tool; relation operation properties; structural features; Approximation methods; Artificial intelligence; Educational institutions; Fuzzy sets; Information systems; Rough sets; Attribute reduction; fuzzy relation mappings; fuzzy rough sets; homomorphism; information systems;
fLanguage :
English
Journal_Title :
Fuzzy Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
1063-6706
Type :
jour
DOI :
10.1109/TFUZZ.2012.2218658
Filename :
6301688
Link To Document :
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