基于相似度的限制容差关系改进

对于不完备信息系统,可以首先进行完备化处理,然后再对所得到的完备信息系统采用传统的处理方法进行约简。但是,这种处理往往会改变原始系统的相关信息。为此有必要直接对不完备信息系统进行处理。论文在分析不完备信息系统已经存在的容差关系、非对称相似关系及限制容差关系的基础上,引入相似度的概念,对限制容差关系进行改进,从而得到基于相似度的限制容差关系模型,能够更灵活地处理不完备信息系统。

Limited Tolerance Relation Improved Based on Similarity Degree

Original incomplete information systems are influenced although incomplete information systems are first changed into complete information systems and then many types of traditional reductions are proposed on them. Therefore,incomplete information systems need be directly operated.In this paper,similarlty degree is introduced so that limited tolerance relation is improved to limited tolerance relation based on similarity degree that can be more flexible than limited tolerance with processing incomplete information systems after tolerance relation,non-symmetric similarity relation and limited tolerance relation that deal with incomplete information systems are researched.