%0 Journal Article
%T Representation and Extension of Rough Set Theory Based on Formal Concept Analysis<br>形式概念分析对粗糙集理论的表示及扩展
%A QU Kai-She
%A ZHAI Yan-Hui
%A LIANG Ji-Ye
%A LI De-Yu
%A <br>曲开社
%A 翟岩慧
%A 梁吉业
%A 李德玉
%J 软件学报
%D 2007
%I 
%X This paper aims to establish the relationship between formal concept analysis and rough set theory.The following results are obtained:(1)a derivative formal context of an information system can be induced by the notion of nominal scale and the technique of plain scaling in formal concept analysis;(2)some core notions in rough set theory such as partition,upper and lower approximations,independence,dependence and reduct can be reinterpreted in derivative formal contexts.In addition,the limitation of rough set theory to data processing is analyzed.The results presented in this paper provide a basis for the synthesis of formal concept analysis and rough set theory.
%K rough set
%K formal concept analysis
%K nominal scale
%K plain scaling
%K concept lattice<br>粗糙集
%K 形式概念分析
%K 名义梯级背景
%K 平面梯级
%K 概念格
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=4DC557F72622118C&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=9CF7A0430CBB2DFD&sid=A7C70BFDC1EB80E9&eid=CB3D341D9E11A799&journal_id=1000-9825&journal_name=软件学报&referenced_num=0&reference_num=23