%0 Journal Article
%T Rough Set Approximation under Dynamic Granulation<br>动态粒度下的粗糙集近似
%A QIAN Yu-Hua
%A LIANG Ji-Ye
%A WANG Jiang School of Computer & Information Technology
%A Shanxi University
%A Taiyuan
%A <br>钱宇华
%A 梁吉业
%A 王江
%J 计算机科学
%D 2005
%I 
%X Granular computing is emerging as a powerful tool for rough set theory. In this paper, we discuss rough set approximation under granulation, and establish positive approximation under dynamic granulation. In addition, mea- sure of harmony between clustering and transcendent knowledge is defined, and a clustering arithmetic based on posi- tive approximation under dynamic granulation is proposed. These results will be helpful for studying for granular computing and rough set theory.
%K Dynamic granulation
%K Rough set approximation
%K Clustering
%K Measure of harmony<br>动态粒度
%K 粗糙集近似
%K 聚类
%K 协调度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=4546C4E49ECAD8A7&yid=2DD7160C83D0ACED&vid=9971A5E270697F23&iid=38B194292C032A66&sid=D5C73DEF4CF8FAF3&eid=8B59EA573021D671&journal_id=1002-137X&journal_name=计算机科学&referenced_num=5&reference_num=14