[1]孔素真,金建刚,孙士保.覆盖粗糙集模型的比较研究[J].郑州大学学报(工学版),2014,35(04):109-111.[doi:10.3969/i.issn.1671-6833.2014.04.026]
　KONG Suzhen,JlN Jiangang,SUN Shibao.A Comparative Study of Covering Rough Set Model[J].Journal of Zhengzhou University (Engineering Science),2014,35(04):109-111.[doi:10.3969/i.issn.1671-6833.2014.04.026]
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覆盖粗糙集模型的比较研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
35
期数:
2014年04期
页码:
109-111
栏目:
出版日期:
2014-08-30

文章信息/Info

Title:
A Comparative Study of Covering Rough Set Model
作者:
孔素真; 金建刚; 孙士保
Author(s):
KONG Suzhen; JlN Jiangang; SUN Shibao
1. Department of information Engineering, Henan University of Animal Husbandry and Eeonomy, 2hengzhou 450011. China:2. Software College, North China lniversity of Water Resourees & Eleetrie Power, 2hengzhou 450045, China; 3. information En-gineering College, Henan University of Seience & Technology, Luoyang 471023, China
Keywords:
cover;  lower apprximation operator;  upper approximation operator;  knowledge diseovery
分类号:
TP18
DOI:
10.3969/i.issn.1671-6833.2014.04.026
文献标志码:
A
Abstract:
By means of intersection of covering, two kinds of eovering rough set models are delined in the easeof absenee of equivalenee relations in addition to covering relations between the data elements. The properiesof lower approximation operator and upper approximation operator are diseussed by using comparable methodsin two covering rough set model, and the correetness of the corresponding point is proved by using mathematieal theory. Through analysis of the delinitions of two kinds of covering rough set models, the relationships olthe lower approximation operator and upper approximation operator and with other rough set models are illustra.ted. Through these researches, the rough set theory is expanded, the theory and method of knowledge diseovery is improved, and a simple way is provided for data mining of large databases.
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