| 基于信息熵的不完备信息系统粗集模型拓展 |
| |
| 引用本文： | 刘伟辉,刘展光.基于信息熵的不完备信息系统粗集模型拓展[J].数字社区&智能家居,2007,1(2):487-488. |
| |
| 作者姓名： | 刘伟辉 刘展光 |
| |
| 作者单位： | 徐州师范大学,计算机学院,江苏,徐州,221116 徐州师范大学,计算机学院,江苏,徐州,221116 |
| |
| 摘 要： | 分析几种已有的针对不完备信息系统的粗集拓展模型基础上,提出了一种基于信息增益的粗集拓展模型.在对各属性重要性排序的前提下,对不完备信息系统进行进一步的粗集模型拓展,通过实例说明该模型更符合人的主观要求和客观现实.
|
| 关 键 词： | 粗糙集 容差关系 非对称相似关系 特征关系 信息熵 |
| 文章编号： | 1009-3044(2007)02-10487-02 |
| 修稿时间： | 2006年9月8日 |
Extension of Rough set Model Based on Information Entropy under Incomplete Information Systems |
| |
| LIU Wei-hui,LIU Chen-guang.Extension of Rough set Model Based on Information Entropy under Incomplete Information Systems[J].Digital Community & Smart Home,2007,1(2):487-488. |
| |
| Authors: | LIU Wei-hui LIU Chen-guang |
| |
| Abstract: | In this paper, several existing extended rough set models are analyzed and a new model based on information gain is presented. In this model, the importance of each attribute is estimated before farther extension of rough set model under the incomplete information system. Finally, the experimental result shows this model has good coincidence with user's subjective request and objective reality. |
| |
| Keywords: | Rough set tolerance relation unsymmetrically similarity relation characteristic relation information entropy |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
