%0 Journal Article
%T Fuzzed of Lower and Upper Approximation in Incomplete Information System<br>在不完备信息系统中上、下近似的模糊化
%A YANG Ji-lin
%A QIN Ke-yun
%A PEI Zheng
%A <br>杨霁琳
%A 秦克云
%A 裴峥
%J 计算机科学
%D 2010
%I 
%X The uncertainty of objects is considered in the incomplete information system.Based on the uncertainty of objects,the method in which lower and upper approximation are fuzzed,i.e.,the lower and upper approximation is a pair of fuzzy sets,was discussed in the incomplete information system.One hand,lower and upper approximations are decidedby the similarity relation;on the other hand,the objects with uncertainty due to * is existent.Therefore,the uncertainty degree of an object and similarity degree among the...
%K Incomplete information system
%K Rough set
%K Fuzz set
%K Similarity relations
%K Similar degree
%K Membership degree<br>不完备信息系统
%K 粗糙集
%K 模糊集
%K 相似关系
%K 相似度
%K 隶属度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=453CFD4EE1D0985693866DFF2AD4E6EC&yid=140ECF96957D60B2&vid=42425781F0B1C26E&iid=38B194292C032A66&sid=64963996248CBF47&eid=FEF02B4635FE8227&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=14