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Reduction and axiomization of covering generalized rough sets
文献类型：期刊论文
| 作者 | Zhu, W ; Wang, FY
|
| 刊名 | INFORMATION SCIENCES
 |
| 出版日期 | 2003-06-01 |
| 卷号 | 152期号:0页码:217-230 |
| 关键词 | computing with words covering covering lower and upper approximations fuzzy sets reduct rough sets |
| 通讯作者 | Wang, FY |
| 英文摘要 | This paper investigates some basic properties of covering generalized rough sets, and their comparison with the corresponding ones of Pawlak's rough sets, a tool for data mining. The focus here is on the concepts and conditions for two coverings to generate the same covering lower approximation or the same covering upper approximation. The concept of reducts of coverings is introduced and the procedure to find a reduct for a covering is given. It has been proved that the reduct of a covering is the minimal covering that generates the same covering lower approximation or the same covering upper approximation, so this concept is also a technique to get rid of redundancy in data mining. Furthermore, it has been shown that covering lower and upper approximations determine each other. Finally, a set of axioms is constructed to characterize the covering lower approximation operation. (C) 2003 Elsevier Science Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Computer Science, Information Systems |
| 研究领域[WOS] | Computer Science |
| 关键词[WOS] | APPROXIMATE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000182691600014 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/9918]  |
| 专题 | 自动化研究所_09年以前成果 |
| 作者单位 | 1.Chinese Acad Sci, Lab Complex Syst & Intelligence Sci, Intelligent Control & Syst Engn Ctr, Beijing 100080, Peoples R China 2.Univ Arizona, Dept Syst & Ind Engn, Program Adv Res Complex Syst, Tucson, AZ 85721 USA |
| 推荐引用方式 GB/T 7714 | Zhu, W,Wang, FY. Reduction and axiomization of covering generalized rough sets[J]. INFORMATION SCIENCES,2003,152(0):217-230. |
| APA | Zhu, W,&Wang, FY.(2003).Reduction and axiomization of covering generalized rough sets.INFORMATION SCIENCES,152(0),217-230. |
| MLA | Zhu, W,et al."Reduction and axiomization of covering generalized rough sets".INFORMATION SCIENCES 152.0(2003):217-230. |
入库方式： OAI收割
来源：自动化研究所
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