Topological Approaches to the First Type of Covering-Based Rough Sets
Rough sets, a tool for data mining, deal with the vagueness and granularity in information systems. This paper studies covering-based rough sets from the topological view. We explore the relationship between the relative closure and the first type of covering upper approximation. The major contributions of this paper are that we use the definition of the relative closure and the relative interior to discuss the conditions under which the relative operators satisfy certain classical properties. The theorems we get generalize some of the results in Zhus paper.
rough sets topology subbase relative clo-sure relative interior
Bin Chen Jinjin Li
School of Science, University of Jinan Jinan 250022 P.R.China Department of Mathematics, Zhangzhou Teachers College Zhangzhou 363000 P.R.China
国际会议
西安
英文
807-810
2010-08-07（万方平台首次上网日期，不代表论文的发表时间）