计算机工程2011,Vol.37Issue(3):47-48,2.DOI:10.3969/j.issn.1000-3428.2011.03.017
基于近似度的不完备信息系统属性约简
Incomplete Information System Attribute Reduction Based on Approximate Degree
摘要
Abstract
This paper considers the differences of the individual contribution based on attribute set P classification in the tolerance relation,introduces the notion of approximate degree for the rough set.It defines a new entropy based on the consideration of both the elements belong to a set of Rp(x) and does not belong to Rp(x).On this basis, an attribute reduction algorithm based on approximate degree for incomplete information system is realized.Simulation results show that this algorithm has better reduction efficiency than IEARA algorithm.关键词
近似度/不完备信息系统/属性约简Key words
approximate degree/ incomplete information system/ attribute reduction分类
信息技术与安全科学引用本文复制引用
汪琼枝,吴涛,毛军军,张培根..基于近似度的不完备信息系统属性约简[J].计算机工程,2011,37(3):47-48,2.基金项目
中国博士后基金资助面上项目(20070411028) (20070411028)
国家自然科学基金资助项目(60675031) (60675031)
安徽省自然科学基金资助项目(KJ2008B093) (KJ2008B093)
安徽大学学术创新团队基金资助项目(KJTD001B) (KJTD001B)
安徽大学大学生创新性实验基金资助项目(30005) (30005)
安徽大学人才队伍建设基金资助项目 ()