摘要
在基于优势关系下的不协调目标信息系统中引入了分布和最大分布协调近似空间的概念,并证明了在优势关系下不协调目标信息系统也可以转化为一个分布以及最大分布协调近似空间,这更加方便了基于优势关系下不协调目标信息系统的研究,从而进一步丰富了粗糙集理论。
In real-world, most of information systems are not only inconsistent, but also based on dominance relations because of various factors. Moreover, it is extremely important to turn an inconsistent system into a consistent one. The main aim of this paper is to discuss the problem. The concepts of approximation space of distribution consistent are proposed based on dominance relation in the paper, and it is shown that the inconsistent system can be turned into a distribution consistent approximation space, and any knowledge isn't lost. Using this approach some problems can be simplified.
出处
《计算机科学》
CSCD
北大核心
2007年第3期148-150,共3页
Computer Science
基金
国家"九七三"计划项目资助(项目号:2002CB31200)。
关键词
粗糙集
信息系统
分布约简
最大分布约简
协调近似空间
Rough set, Information system, Dominance relation, Approximation space of distribution consistent