计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (31): 138-140.

• 数据库、信号与信息处理 • 上一篇    下一篇

集值Rough扩展模型知识约简

吴 鹏,易晓梅   

  1. 浙江农林大学 信息工程学院,浙江 临安 311300

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-11-01 发布日期:2011-11-01

Knowledge reduction based on set-valued rough set extension model

WU Peng,YI Xiaomei   

  1. School of Information Engineering,Zhejiang A&F University,Lin’an,Zhejiang 311300,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-11-01 Published:2011-11-01

摘要: 基于吴鹏等提出的k度限制相容关系模型,讨论在集值不完备信息系统上的约简,给出集值不完备信息系统属性约简的判定定理和辨识矩阵,得到集值不完备信息系统知识约简的具体操作方法。

关键词: Rough集, 集值信息系统, 限制相容关系, 知识约简

Abstract: Based on k-degree tolerance relation and dominance relation propoled by Wu Peng,et al,this paper discusses the knowledge reduction of the set-valued incomplete information system,and presents the decision theorem,the discernibility matrix,and the specific operation method for the knowledge reduction of the set-valued incomplete information system.

Key words: Rough set, set-valued information system, limited tolerance relation, knowledge reduction