摘要
对粗糙集、Vague集及粗糙Vague集的概念、知识表示方法进行了讨论,描述了粗糙Vague集的相关概念,在研究了粗糙Vague集相似性度量方法的基础上,提出了一种对踌躇度пv(x)k步细化的k步相似度量新方法,并且研究了该方法的相关性质。进一步对k步相似度量在k趋向无穷时求极限,得出粗糙Vague集退化为模糊集的特例情况。
In this paper,some concepts of rough sets,vague sets and rough Vague sets are discussed,and the method of knowledge expression is approached.The concept of rough vague-valued and similarity measures for measuring the degree of similarity between elements（rough vague-valued：RV-valued） are studied,and then a new method of similarity measures for k steps between rough Vague sets（valued） is given,its some properties are studied.Similarity measures for k steps are limited while k tends to in- finity,then rough Vague sets becomes fuzzy sets.
出处
《计算机工程与应用》
CSCD
北大核心
2009年第2期140-143,共4页
Computer Engineering and Applications
基金
国家自然科学基金No.10671158
甘肃省教育厅科研基金(No.0701-16)
西北师范大学2006-2010年度重点学科“网格计算”~~
