基于属性分类的悲观概念格与乐观概念格

高乐^1,², 王振^1,², 魏玲^1,², 祁建军³

Pessimistic Concept Lattices and Optimistic Concept Lattices Based on Attribute Classification

GAO Le^1,², WANG Zhen^1,², WEI Ling^1,², QI Jianjun³

例1的概念格 L ( U , A , I )