一种不完备模糊目标信息系统的精度属性约简算法  

The reduction algorithm of discerniblity matrix in incomplete and fuzzy objective information systems

作　　者：于晓辉[1] 张强[1] 

机构地区：[1]北京理工大学管理与经济学院,北京100081

出　　处：《商丘师范学院学报》2008年第9期10-14,共5页Journal of Shangqiu Normal University

基　　金：国家自然科学基金资助项目(No:70471063);985工程二期资助项目(No:107008200400024);北京市重点学科资助项目(No:xk100070534)

摘　　要：信息不完备并且目标是模糊的信息系统在很多实际问题中存在.本文把J.W.Guan等人提出的完备信息系统下的可辨识矩阵属性约简算法推广到信息不完备并且目标模糊的领域.通过容差关系的上近似集和下近似集重新设计了属性约简的精度算法,最后用实例验证算法的可行性.The information systems that the information is incomplete and the objectives are fuzzy exist in many applications. This paper extends attribute reduction computation based on discernible matrix in complete information system to the field of incomplete and fuzzy objective. Based on the upper approximation and the lower approximation of compatibility relation,we have designed a new attribute reduction precision arithmetic. At last by an example, the effectiveness of the arithmetic have been proved.

关 键 词：粗糙集 属性约简 不完备模糊目标信息系统 可辨识矩阵 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程] V448.25[自动化与计算机技术—控制科学与工程]