基于混合容差关系的粗糙集模型

The Rough Set Model Based on Hybrid Tolerance Relation

将弱不可分辨关系引入到不完备信息系统中,讨论不完备信息系统中三种不同的容差关系。首先,融合强容差关系和弱容差关系,提出混合容差关系;然后,其次,基于混合容差关系以及基于混合容差关系的极大连续块技术构建两种不同的粗糙集模型;最后,讨论这两种不同粗糙集模型之间的关系。

In this paper, three different tolerance relations in incomplete information system are deeply explored. To begin with, the concept of the hybrid tolerance relation is proposed through the fusion of strong and weak tolerance relations. Then, on the basis of hybrid tolerance relation and the maximal consistent blocks of hybrid tolerance relation, two different rough sets are constructed. Finally, the relationship between these two different rough sets is also explored.