On covering rough sets

被引：0
作者：
Qin, Keyun [1 ]
Gao, Yan [2 ]
Pei, Zheng [3 ]
机构：
[1] SouthWest Jiao Tong Univ, Dept Math, Chengdu 610031, Peoples R China
[2] Henan Polytechnic Univ, Coll Comp Sci & Technol, Jiaozuo 454000, Henan, Peoples R China
[3] Xihua Univ, Sch Math & Comp Sci, Chengdu 610039, Peoples R China
来源：
ROUGH SETS AND KNOWLEDGE TECHNOLOGY, PROCEEDINGS | 2007年 / 4481卷
基金：
中国国家自然科学基金;
关键词：
rough set; covering rough set; covering lower approximation; covering upper approximation; representative element;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
This paper is devoted to the discussion of extended covering rough set models. Based on the notion of neighborhood, five pairs of dual covering approximation operators were defined with their properties being discussed. The relationships among these operators were investigated. The main results are conditions with which these covering approximation operators are identical.
引用
收藏
页码：34 / +
页数：3
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