摘要
从粗糙隶属函数的角度出发 ,研究了一般关系下的粗糙集模型的模糊性度量 ,用模糊集的截集的概念描述了一般关系下变精度粗糙集模型 .
A measure of fuzziness in rough sets based on general relations is introduced and some characterizations of this measure are made in this paper.Simultaneously, variable precision rough set model based on the general relations is studied with cut set of a fuzzy set.
出处
《宁夏大学学报（自然科学版）》
CAS
2001年第4期352-355,共4页
Journal of Ningxia University(Natural Science Edition)
基金
宁夏自然科学基金资助项目 (A0 0 2 )
宁夏教委科研基金资助项目
关键词
粗糙集
模糊集
二元关系
rough set
fuzzy set
binary relations
