Disjunctive Set-Valued Ordered Information Systems Based on Variable Precision Dominance Relation

被引：0
|
作者：
Wang, Guoyin [1 ]
Yang, Qingshan [1 ]
Zhang, Qinghua [1 ]
机构：
[1] Chongqing Univ Posts & Telecommun, Inst Comp Sci & Technol, Chongqing 400065, Peoples R China
来源：
ROUGH SETS, FUZZY SETS, DATA MINING AND GRANULAR COMPUTING, RSFDGRC 2011 | 2011年 / 6743卷
关键词：
disjunctive set-valued information system; rough set; variable precision dominance relation; attribute reduction; ROUGH APPROXIMATION;
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：
Through analyzing limitations of four existing dominance relations in disjunctive set-valued information systems, a variable precision dominance relation is proposed, and an extended rough set model based on the variable precision dominance relation is defined. In order to derive much simpler attribute representation, a discernibility matrix is defined, and an attribute reduction method based on the discernibility matrix is developed.
引用
收藏
页码：207 / 210
页数：4
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