%0 Journal Article
%T Neighborhood System Based Rough Set and Covering Based Rough Set<br>邻域系统粗糙集和覆盖粗糙集
%A WANG Li-juan
%A WU Chen
%A YANG Xi-bei
%A YANG Jing-yu
%A <br>王丽娟
%A 吴陈
%A 杨习贝
%A 杨静宇
%J 计算机科学
%D 2013
%I 
%X Neighborhood system based rough set and covering based rough set arc two important expansions of the clas- sical rough set, I3y means of comparing the lower approximation sets, the upper approximation sets and accuracy meas- ures,thc relationships of neighborhood system based rough set and six covering based rough set models were systemati- cally studied. The conclusion is that the relationships between the lower or upper approximations of neighborhood sys- tem based rough set and six covering based rough set models are clear, either can be compared, or not. Under the compa- ruble situation, it was proved that there arc inclusion even equivalence relations. Under the incomparable situation, it was proved by counter-examples. The comparative study on different expansions of rough set not only provides a better un- derstanding of these models, but also gives a hand on learning rough set in the macroscopic level.
%K Neighborhood system based rough set
%K Covering based rough set
%K Accuracy measure
%K Comparison<br>邻域系统粗糙集
%K 覆盖粗糙集
%K 近似精度
%K 比较
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=F2F3E0E822DEB5B229BB7CFDE58552E2&yid=FF7AA908D58E97FA&vid=1371F55DA51B6E64&iid=CA4FD0336C81A37A&sid=78F0EFE028BD3783&eid=A1266CF37D675CF1&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=0