摘要
模糊粗糙集理论模型的建立和发展是Pawlak粗糙集模型推广的一个主要方向，该文在普通等价关系下的模糊粗糙集的基础上．给出了模糊相似关系下的模糊粗糙集的表示方法，并提出了模糊集的截集在模糊相似关系下的下、上近似的表示方法及其性质。
On the base of the ordinary equivalence relation of fuzzy rough set, has given the fuzzy rough set expression based on the fuzzy similar relation. This paper mainly proposes the level set of fuzzy rough set the lower and upper approximation based on the fuzzy similar relation. Moreover, the basic properties are also investigated.
作者
咸艳霞
XIAN Yan-xia （College of Science, Wuhan University of Science and Technology, Wuhan 430065, China）
出处
《电脑知识与技术》
2009年第2期947-949,953,共4页
Computer Knowledge and Technology
关键词
模糊相似关系
模糊粗糙集
截集
the fuzzy similar relation
the fuzzy rough set
level set
