%0 Journal Article
%T Attribute Reductions and Attribute Features of Formal Contexts Based on a Type of Rough Sets<br>基于粗糙集的形式背景属性约简及属性特征
%A LI Tong-Jun
%A ZHANG Wen-Xiu
%A MA Jian-Min
%A <br>李同军
%A 张文修
%A 马建敏
%J 计算机科学
%D 2006
%I 
%X Rough sets theory is a kind of tools for data analysis and knowledge discovery. The knowledge hidden in universe or information systems can be revealed by using the lower and upper approximation operators. Representing knowledge with more little attribute
%K Rough sets
%K Formal contexts
%K Attribute reductions
%K Attribute features<br>粗糙集
%K 形式背景
%K 属性约简
%K 属性特征
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=800C10FAA942ADB7&yid=37904DC365DD7266&vid=27746BCEEE58E9DC&iid=9CF7A0430CBB2DFD&sid=4609832E4B5C797B&eid=F1A8654ADB4E656E&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=7