摘要
在基于覆盖的粗糙集的基础上,定义了基于覆盖的模糊粗糙集模型,并且讨论了该模型的一些相关性质.同时,证明了论域上的任意子集相对于覆盖近似空间及其约简后的覆盖近似空间的上下近似是分别相等的,从而简化了运算.
Based on covering rough sets, fuzzy covering generalized rough sets is defined, and some corresponding properties are discussed. It has been proved that covering lower and upper approximations are equal on the covering approximation space and reduct covering approximation space.
出处
《周口师范学院学报》
CAS
2004年第2期20-22,共3页
Journal of Zhoukou Normal University
关键词
覆盖
覆盖上下近似
模糊集
粗糙集
约简
covering
covering lower and upper approximations
fuzzy sets
rough sets
ruduct
