优势关系下知识约简的比较研究

A comparative study of knowledge reductions based on dominance relations

在不协调目标信息系统中引入优势关系的概念,并探讨了基于优势关系下不协调目标信息系统的几种知识约简方法,其中包括分布约简、最大分布约简、分配约简和近似约简;同时提出并证明了确定上述约简之间关系的判定定理,为进一步研究、辨识矩阵及其求取属性约简算法提供了理论依据.

The paper introduces the concept of dominance relations in the inconsistent information system,explores several methods of knowledge reductions based on dominance relations,including distribution reduction,maximum distribution,assignment distribution and approximation reduction.It proposes and proves determined theorem concerning reduction relationship mentioned above and provides a theoretical foundation for further research to identify matrix and find the solution to attribute reduction algorithm.