摘要
本文对一门新兴学科──Ｒｏｕｇｈ集理论──的研究进展状况作一概述。在国际上，该学科也是近年来研究较为活跃的学科之一。
The concept of Rough sets was first introduced by Pawlak in 1981.Be-cause this theory is very important and useful in many fields,e.g.in theinformation systemsand the man-machine systems,many scholars both at home and abroad have studied itand obtaincd a lot of results.Now the theory of Rough Sets is still progressing rapidly. Hence,in this paper,we simply introduce the basic concept to readers,
出处
《云南师范大学学报（自然科学版）》
1994年第3期7-10,共4页
Journal of Yunnan Normal University:Natural Sciences Edition
关键词
ROUGH集
信息系统
逼近
属性集合
信息论
Rough set Information system Set of attribute Information func-tion.
