S-粗集上的知识特性  

Knowledge characteristics on S-rough sets

作　　者：周厚勇[1] 李东亚[1] 朱鹏飞[2] 

机构地区：[1]黄淮学院数学系,河南驻马店463000 [2]山东大学控制科学与工程学院,山东济南250061

出　　处：《山东大学学报（理学版）》2005年第2期13-16,36,共5页Journal of Shandong University(Natural Science)

摘　　要：基于S -粗集的理论,给出了f -知识膨胀度与f -知识萎缩度的概念;讨论了f -知识膨胀与f- 知识萎缩的性质,提出了S- 粗集上知识膨胀度 萎缩度等值定理,f -知识集知识膨胀定理; f- 知识集知识萎缩定理,给出f -知识, f -知识在决策识别中的应用.Based on S-rough sets theory, the concept of f-knowledge expansion and -knowledge contraction is given, and the properties of f-knowledge expansion and -knowledge contraction are discussed. Knowledge expansion and contraction equation theorem on S-rough sets, knowledge expansion theorem on f-knowledge sets, and knowledge contraction theorem on -knowledge sets are advanced. Applications of f-knowledge and -knowledge in decision recognition are presented.

关 键 词：f-知识 f^--知识 f-膨胀度 f^--萎缩度 

分 类 号：O159[理学—数学]