集值决策信息系统及其知识约简  

Set-valued decision information system and its Knowledge reduction

作　　者：陈秀[1] 李克典[1] 

机构地区：[1]漳州师范学院数学与信息科学系,福建漳州363000

出　　处：《海南师范大学学报（自然科学版）》2008年第4期389-392,426,共5页Journal of Hainan Normal University（Natural Science）

基　　金：国家自然科学基金资助项目(10671173;10571151);福建省自然科学基金资助项目(2006J0228;2008F5066)

摘　　要：文章在集值决策信息系统中提出了一种新的基于变精度参数分类的二元关系,即变精度相容关系,可以通过改变精度参数来使分类更合理;同时,还讨论了基于这种二元关系的集值信息系统的知识约简及其属性特征,并给出了可辨识矩阵.A new relationship based on a variable precision parameter in the set-valued decision information system was defined, namely, a variable precision relationship. By changing the value of the parameter;, the objects could be classified more reasonably. The knowledge reduction in set-valued decision information system and its attribute feature were discussed here and the discernibility matrices were also proposed.

关 键 词：集值决策信息系统 变精度相容关系 知识约简 辨识矩阵 

分 类 号：O159[理学—数学]