two direction S-fuzzy rough sets 双向S
one direction S-fuzzy rough sets 单向S
fuzzy-rough sets 模糊粗糙集理论
l-fuzzy rough sets l模糊粗糙集
variation fuzzy rough sets 变异模糊粗集
generalized fuzzy rough sets 广义模糊粗糙集
compatibility fuzzy-rough sets 相容模糊粗糙集
high-type fuzzy rough sets 高型粗糙模糊集
We give some properties of random fuzzy rough sets.
给出了随机模糊粗糙集的性质。
The conception of variation fuzzy rough sets is proposed and their relevant properties and theorems are given.
提出了变异模糊粗集的概念，并给出了变异模糊粗集的相关性质和定理。
As knowledge block in knowledge base is fuzzy and is obtained randomly, we study the rough set model based on random fuzzy rough sets.
当知识库中的知识模块既是模糊的又是随机得到的，我们定义了基于随机模糊集的粗糙集模型。
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