%0 Journal Article
%T Reduction in ordered decision system based on spearman rank correlations<br>基于spearman秩相关的序值决策系统约简
%A QI Yun-song
%A XIE Jun
%A <br>祁云嵩
%A 谢军
%J 计算机应用
%D 2009
%I 
%X Reduction is an important knowledge discovery process.The original rough set theory based on equivalence relations does not consider attributes with preference-ordered domains and is sensitive to data noise.Based on spearman rank correlation analysis,a method was introduced to reduction ordered decision systems.This method computes the reduction according to the impact of certain attributes on the spearman rank correlations between objects.Experimental results show that this method is effective as it not on...
%K rough set
%K knowledge reduction
%K ordered decision system
%K spearman rank correlation<br>粗糙集
%K 知识约简
%K 序值决策系统
%K spearman秩相关
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=EDFDED8FFFA7750AC7F7406334DAA62B&yid=DE12191FBD62783C&vid=771469D9D58C34FF&iid=DF92D298D3FF1E6E&sid=EC1380648154B673&eid=447D6CC3FC5167A0&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=13