The information entropy of rough relational databases
文献类型：期刊论文
| 作者 | Sui, YF; Xia, YM; Wang, J |
| 刊名 | ROUGH SETS, FUZZY SETS, DATA MINING, AND GRANULAR COMPUTING
 |
| 出版日期 | 2003 |
| 卷号 | 2639页码:320-324 |
| 关键词 | rough set relational database entropy dependence |
| ISSN号 | 0302-9743 |
| 英文摘要 | Beaubouef, Petry and Buckles proposed the generalized rough set database analysis (GRSDA) to discuss rough relational databases. Given any rough relational database (U, A) and an attribute a is an element of A, as in rough set theory, a definition of the lower and upper approximations based on phi(a) is given. The entropy and conditional entropy of similarity relations in a rough relational database are defined. The examples show that the entropy of a similarity relation does not decrease as the similarity relation is refined. It will be proved that given any two similarity relations phi and psi, defined by a set C of conditional attributes and a decision attribute d, respectively, if d similarly depends on C in a rough relational database then the conditional entropy of phi with respect to psi is equal to the entropy of phi. |
| WOS研究方向 | Computer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000184350600048 |
| 出版者 | SPRINGER-VERLAG BERLIN |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/13661]  |
| 专题 | 中国科学院计算技术研究所期刊论文_英文 |
| 通讯作者 | Sui, YF |
| 作者单位 | 1.Yunnan Normal Univ, Dept Comp Sci, Kunming, Peoples R China 2.Chinese Acad Sci, Comp Technol Inst, Key Lab Intelligent Informat Proc, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Software, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sui, YF,Xia, YM,Wang, J. The information entropy of rough relational databases[J]. ROUGH SETS, FUZZY SETS, DATA MINING, AND GRANULAR COMPUTING,2003,2639:320-324. |
| APA | Sui, YF,Xia, YM,&Wang, J.(2003).The information entropy of rough relational databases.ROUGH SETS, FUZZY SETS, DATA MINING, AND GRANULAR COMPUTING,2639,320-324. |
| MLA | Sui, YF,et al."The information entropy of rough relational databases".ROUGH SETS, FUZZY SETS, DATA MINING, AND GRANULAR COMPUTING 2639(2003):320-324. |
入库方式： OAI收割
来源：计算技术研究所
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