Attribute Reduction for Imprecise Decision Tables

被引:0
|
作者
Inuiguchi, Masahiro [1 ]
Li, Bingjun [2 ]
机构
[1] Osaka Univ, Grad Sch Engn Sci, Dept Syst Innovat, Toyonaka, Osaka 5608531, Japan
[2] Henan Agr Univ, Coll Informat & Management Sci, Zhengzhou 450002, Peoples R China
关键词
rough set; imprecise decision table; reduct; presumable value; possible value; ROUGH SET APPROACH;
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
In this paper, we investigate approaches to attribute reduction for decision tables with imprecise decision attribute values. First, we introduce imprecise decision tables, and presumable and possible decision attribute value sets. We define several meaningful object sets based on the twofold decision attribute value sets. Using those object sets, we propose value-oriented and object-oriented approaches to attribute reduction of imprecise decision tables. We show some properties of several reducts defined by the approaches. These properties help the selection of reducts suitable for the problem and analyst preference. A numerical example is given.
引用
收藏
页码:205 / 210
页数:6
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