不完备系统中新的依赖度求法  

A New Approach to Calculate Dependency in Incomplete Systems

作　　者：高希越 GAO Xiyue(School of Mathematics and Computer Science,Shanxi Normal University,Linfen 041000,China)

机构地区：[1]山西师范大学数学与计算机科学学院,山西临汾041000

出　　处：《忻州师范学院学报》2020年第5期10-14,共5页Journal of Xinzhou Teachers University

摘　　要：知识约简是粗糙集理论研究中非常重要的一部分,依赖度作为一个重要的度量方式,常常用于属性约简,文章提出了不完备决策系统中一种新的依赖度的计算方法。首先,给出了不完备决策系统中,避开正域求依赖度的详细步骤,并用例子进行了解释说明。其次,在基于依赖度的启发式知识约简中,运用了提出的新方法来求依赖度。Knowledge reduction is a very important part of the research of rough set theory.As an important measurement method,dependency degree is often used for attribute reduction.This paper proposes a new calculation method of dependency degree in incompletedecision system.First of all,this paper gives the detailed steps of avoiding the positive region to calculate dependency degree in the incomplete decision system,and explains it with examples.Secondly,in the heuristic knowledge reduction based on dependency,the proposed new method is used to find the dependency.

关 键 词：依赖度 正域 约简 

分 类 号：A110[哲学宗教—马克思主义哲学]