笛卡儿积域粗糙集模型的矩阵性质

Matrix Property Based on Rough Sets Model on Cartesian Product Universes

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。

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.