摘要
探讨了知识粒度的一些重要性质和定理。在此基础上,从知识粒度的角度对粗糙集进行研究,给出了粗糙集中主要概念与运算的知识粒度表示,最后证明了属性约简在知识粒度与代数两种不同表示下是等价的。
Some important properties and theorems of knowledge granulation are discussed.Based on it,the paper studies on rough set from the point of view of knowledge granulation,and knowledge granulation representations of the concepts and operations in rough set theory are given.At last,the equivalent properties between knowledge granulation representation and algebraic representation of attribute reduction are proved.
出处
《计算机工程与应用》
CSCD
北大核心
2011年第11期34-36,45,共4页
Computer Engineering and Applications
关键词
粗糙集
知识粒度
属性约简
rough set
knowledge granulation
attribute reduction
