S-粗集的程度近似算子及其特性  

Graded Approximate Operator and Its Characteristic on the S-Rough Sets

作　　者：李东亚[1] 魏本成[1] 

机构地区：[1]黄淮学院,河南驻马店463000

出　　处：《天中学刊》2006年第2期9-12,共4页Journal of Tianzhong

基　　金：河南省自然科学基金资助项目(0511012700)

摘　　要：将双向S-粗集上的近似算子推广为程度近似算子,定义了新的近似算子和近似集合,给出了近似算子和近似集合的性质定理,扩大了S-粗集理论的应用范围.This paper spreads the approximate operator on the two-way S-rough sets to graded approximate operator, defines the new approximate operators and approximate sets, gives qualitative theorem of approximate operators and approximate sets, and extends the applied area of S-rough sets theory.

关 键 词：S-粗集 双向S-粗集 一般二元关系 程度近似算子 程度近似集合 

分 类 号：O159[理学—数学]