%0 Journal Article
%T High Efficiency Approaches for Computing Attributes Core and Reductions Based on SQL<br>基于SQL的属性核与约简高效计算方法
%A FENG Lin
%A LI Tian-rui
%A <br>冯林
%A 李天瑞
%J 计算机科学
%D 2010
%I 
%X Calculating approaches for attributes core,attributes reductions and values core were developed in relation databases by combing rough set theory and SQL.Experimental results illustrate these methods have the better perfor-mance in run-time efficiency comparing with the related approaches of the classical rough set theory in processing decision tables.
%K Rough set
%K SQL
%K Attributes core
%K Attributes reductions<br>粗糙集
%K SQL语言
%K 属性核
%K 属性约简
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=BC21CA713680D2CB0AAA27AE0B9A4974&yid=140ECF96957D60B2&vid=42425781F0B1C26E&iid=CA4FD0336C81A37A&sid=FBCA02DBD05BD4EA&eid=9CA95D22FC1D537C&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=10