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On three types of covering-based rough sets
Zhu, William; Wang, Fei-Yue
2007-08-01
发表期刊IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
卷号19期号:8页码:1131-1144
文章类型Article
摘要Rough set theory is a useful tool for data mining. It is based on equivalence relations and has been extended to covering-based generalized rough set. This paper studies three kinds of covering generalized rough sets for dealing with the vagueness and granularity in information systems. First, we examine the properties of approximation operations generated by a covering in comparison with those of the Pawlak's rough sets. Then, we propose concepts and conditions for two coverings to generate an identical lower approximation operation and an identical upper approximation operation. After the discussion on the interdependency of covering lower and upper approximation operations, we address the axiomization issue of covering lower and upper approximation operations. In addition, we study the relationships between the covering lower approximation and the interior operator and also the relationships between the covering upper approximation and the closure operator. Finally, this paper explores the relationships among these three types of covering rough sets.
关键词Rough Sets Approximation Covering Data Mining Reduct Fuzzy Sets Granular Computing Computing With Words
WOS标题词Science & Technology ; Technology
关键词[WOS]FUZZY-SETS ; ALGORITHM ; PROTEIN
收录类别SCI
语种英语
WOS研究方向Computer Science ; Engineering
WOS类目Computer Science, Artificial Intelligence ; Computer Science, Information Systems ; Engineering, Electrical & Electronic
WOS记录号WOS:000248223300010
引用统计
被引频次:229[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9444
专题09年以前成果
通讯作者Zhu, William
作者单位1.Chinese Acad Sci, Inst Automat, Beijing 100080, Peoples R China
2.Univ Auckland, Dept Comp Sci, Auckland 1, New Zealand
3.Univ Arizona, Dept Syst & Ind Engn, Tucson, AZ 85721 USA
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Zhu, William,Wang, Fei-Yue. On three types of covering-based rough sets[J]. IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING,2007,19(8):1131-1144.
APA Zhu, William,&Wang, Fei-Yue.(2007).On three types of covering-based rough sets.IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING,19(8),1131-1144.
MLA Zhu, William,et al."On three types of covering-based rough sets".IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 19.8(2007):1131-1144.
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