Title :
Covering fuzzy rough set based on multi-granulations
Author :
Liu, Caihui ; Wang, Meizhi
Author_Institution :
Dept. of Math. & Comput. Sci., Gannan Normal Univ. Ganzhou, Gannan, China
Abstract :
This paper extends the rough set model based on multi-granulations to the covering fuzzy rough set model based on multi-granulation, which is named MGCFRS. The lower and upper approximations of fuzzy sets in a covering approximation space are defined and some basic properties about the MGCFRS are investigated. One can see that the basic properties of MGRS are special cases of MGCFRS model.
Keywords :
fuzzy set theory; rough set theory; MGCFRS model; approximation space; fuzzy rough set model; multigranulations; Approximation methods; Cognition; Computational modeling; Conferences; Fuzzy sets; Knowledge based systems; Rough sets; Covering; Fuzzy Rough sets; Multi-granulations;
Conference_Titel :
Uncertainty Reasoning and Knowledge Engineering (URKE), 2011 International Conference on
Conference_Location :
Bali
Print_ISBN :
978-1-4244-9985-4
Electronic_ISBN :
978-1-4244-9984-7
DOI :
10.1109/URKE.2011.6007930
