%0 Journal Article
%T Research on Rough Sets under Incomplete Information System<br>粗糙集理论中新的针对不完备信息系统的处理方法研究
%A PAN Wei
%A WANG Yang-Sheng
%A YANG Hong-Ji
%A <br>潘巍
%A 王阳生
%A 杨宏戟
%J 计算机科学
%D 2007
%I 
%X In order to process incomplete information systems in Rough sets, a novel method based on discrepancy relation and data partial supplement is introduced. This paper analyzes current typical methods, defines the discrepancy relation, extends the discrepancy matrix, proves the feasibility of using discrepancy relation to reduce redundant attributes and provides corresponding algorithms. Besides, uses a new method of data partial supplement to obtain latent data to provide more accurate information for next step of extracting decision rules. The experiment results show that the new method can get best performance evaluation.
%K Rrough set
%K Incomplete information
%K Similarity relation
%K Data recruitment<br>粗糙集
%K 不完备信息
%K 相似关系
%K 数据补齐
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=797ECF83481508169F55B8A0F38CF6EB&yid=A732AF04DDA03BB3&vid=339D79302DF62549&iid=B31275AF3241DB2D&sid=4C100B7696CE9E24&eid=8575BEDA702C4B7C&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=9