CSpace  > 中国科学院计算技术研究所期刊论文  > 英文
The information entropy of rough relational databases
Sui, YF; Xia, YM; Wang, J
2003
发表期刊ROUGH SETS, FUZZY SETS, DATA MINING, AND GRANULAR COMPUTING
ISSN0302-9743
卷号2639页码:320-324
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.
关键词rough set relational database entropy dependence
收录类别SCI
语种英语
WOS研究方向Computer Science
WOS类目Computer Science, Artificial Intelligence
WOS记录号WOS:000184350600048
出版者SPRINGER-VERLAG BERLIN
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.204/handle/2XEOYT63/13662
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.Chinese Acad Sci, Comp Technol Inst, Key Lab Intelligent Informat Proc, Beijing, Peoples R China
2.Yunnan Normal Univ, Dept Comp Sci, Kunming, 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.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Sui, YF]的文章
[Xia, YM]的文章
[Wang, J]的文章
百度学术
百度学术中相似的文章
[Sui, YF]的文章
[Xia, YM]的文章
[Wang, J]的文章
必应学术
必应学术中相似的文章
[Sui, YF]的文章
[Xia, YM]的文章
[Wang, J]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。