基于分子格的粗糙集模型推广  

Generalization of Rough Set Model Based on Molecular Lattices

作　　者：赵涛[1] 秦克云[1] 

机构地区：[1]西南交通大学数学学院,成都610031

出　　处：《计算机科学》2012年第2期255-257,共3页Computer Science

基　　金：国家自然科学基金(60875034)资助

摘　　要：粗糙集模型的推广是粗糙集理论研究的重要方向之一。在分子格的框架下,定义了一个从分子到一般元素的映射,基于该映射,分别构造了两种上近似算子和两种下近似算子,并讨论了这些算子的基本性质。The generalization of rough set model is one of the most important branches of rough set theory study.This paper was devoted to the study of rough approximations on molecular lattice.A mapping which from the set of molecules to molecular lattice was defined,and two upper approximation operators and two lower approximation operators were defined using the mapping based on the framework of molecular lattice.Finally,the properties of these operators were derived.

关 键 词：粗糙集 分子格 近似算子 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]