重庆理工大学学报：自然科学
重慶理工大學學報：自然科學
중경리공대학학보：자연과학
Journal of Chongqing Institute of Technology
2012年
1期
102-107
,共6页
粗糙集%二元关系%关系矩阵%变精度粗糙集
粗糙集%二元關繫%關繫矩陣%變精度粗糙集
조조집%이원관계%관계구진%변정도조조집
Rough sets%binary relation%relation matrix%variable precision Rough set
针对由2个Pawlak近似空间上建立的笛卡儿积域粗糙集模型,引入矩阵工具,定义了几种矩阵算子,讨论了该模型基本概念、集合之间关系的矩阵表示与计算过程,得到关于该模型在一般情形与变精度情形下矩阵计算的若干性质。
針對由2箇Pawlak近似空間上建立的笛卡兒積域粗糙集模型,引入矩陣工具,定義瞭幾種矩陣算子,討論瞭該模型基本概唸、集閤之間關繫的矩陣錶示與計算過程,得到關于該模型在一般情形與變精度情形下矩陣計算的若榦性質。
침대유2개Pawlak근사공간상건립적적잡인적역조조집모형,인입구진공구,정의료궤충구진산자,토론료해모형기본개념、집합지간관계적구진표시여계산과정,득도관우해모형재일반정형여변정도정형하구진계산적약간성질。
This paper aims at Rough sets model on double universes built on two approximation spaces of Pawlak Rough set.By introducing the matrix tools,some matrix operators are defined,and the matrix expression and its computation of the model about some basic concepts and the relation between sets are discussed.Some properties of matrix computation about the kind of rough sets in general case and variable precision case are obtained and proved.
