Mappings between Two Covering Approximation Spaces

被引：0

作者：

Ma, Li-Wen ^{[1
]}

Zhao, Zhen-gang ^{[2
]}

Li, Ya-jie ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

[2] Capital Normal Univ, Sch Math Sci, Beijing 100037, Peoples R China

来源：

2016 INTERNATIONAL CONFERENCE ON INFORMATION SYSTEM AND ARTIFICIAL INTELLIGENCE (ISAI 2016) | 2016年

关键词：

covering rough set; neighborhood; complementary neighborhood; mappings; approximation operators; ROUGH SETS;

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：

We studied the relationships between two covering approximation space through mappings. We defined several mappings between two covering approximation spaces such as C-mapping, N-mapping, M-mapping, S-mapping, and, under these mappings, studied the changes of lower and upper approximations of each subset before the transforms and after the transforms. We also discussed the relationships of these mappings and obtained some important results.

引用

页码：109 / 114

页数：6

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