摘要
本文针对不完备信息系统属性约简的两种定义,证明了两者的等价性。在此基础上结合粗糙集理论提出了相似矩阵、相似区间的概念,并将其应用于不完备信息系统知识分类的问题中。
In this paper, the equivalence of two definitions of attributes reduction in incomplete information system is proved. On this bases, similar matrix and similar interval are proposed in combination with rough set theory. They are useful in knowledge partition problem in incomplete information system.
出处
《运筹与管理》
CSCD
2003年第6期40-44,共5页
Operations Research and Management Science
基金
国家自然科学基金资助项目(10271048)
上海市重点学科建设项目
关键词
粗糙集
属性约简
知识分类
相似矩阵
不完备信息系统
operational research
rough set
incomplete information system
attributes reduction
knowledge partition
similar matrix
