Decomposition of rough sets based on fuzzy equivalence relation

被引：0

作者：

Xu, Xiao-Jing ^{[1
]}

Pei, Hai-Feng ^{[1
]}

Shi, Kai-Quan ^{[1
]}

机构：

[1] School of Math. and System Sci., Shandong Univ., Jinan 250100, China

来源：

Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2007年 / 29卷 / 04期

关键词：

Computer aided software engineering - Equivalence classes - Fuzzy sets;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Firstly this paper presents some properties of fuzzy similarity relation and fuzzy equivalence relation. Secondly λ-equivalence classes are founded based on the fuzzy equivalence relation according to its properties and λ-rough sets are founded based on the λ-equivalence classes. λ-rough sets is a general case of Z. Pawlakrough sets. The general properties of the λ-equivalence classes and λ-rough sets are presented. The decomposition of λ-equiralence class and the decomposition of λ-rough sets are defined. Lastly the decomposition chain of rough sets is given.

引用

页码：626 / 628

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