摘要
给出了S 粗集的副集α 生成 ,副集的集 -生成概念 ;给出了副集α 生成特性 ,副集的集 -生成特性 ;提出了副集的α 生成定理 ,副集的集 -生成定理 ;给出了S 粗集的属性非空原理 ,S 粗集的属性基数原理 .
The concept of assistant sets α-generation and assistant sets set-generation is presented. Assistant sets α-generation characteristics, assistant sets set-generation characteristics, assistant sets α-generation theorem are also put forward and assistant sets set-generation theorem are also put forword. The following principles are obtained: nonempty principle of attribute sets of S-rough sets and characteristic cardinal number principle of S-rough sets.
出处
《山东大学学报（理学版）》
CAS
CSCD
北大核心
2004年第1期9-14,共6页
Journal of Shandong University(Natural Science)
基金
国家自然科学基金资助项目 ( 70 2 71 0 48)
山东省自然科学基金资助项目 (Y2 0 0 1G0 7)
关键词
S-粗集
副集
α-生成
α-生成定理
集-生成
集-生成定理
属性非空原理
属性基数原理
S-rough sets
assistant sets
α-generation
α-generation theorem
set-generation
set-generation theorem
nonempty principle of attribute sets
characteristic cardinal number principle
