基于相异关系的粗糙集理论

Rough Set Theory Based on Difference Relation

利用相异关系代替Pawlak粗糙集理论中的不可分辨关系,建立了基于相异关系的粗糙集理论,它使粗糙集理论在完备信息系统和不完备信息系统中的应用统一起来.

In this paper we introduce difference relation instead of indiscernibility relation in Pawlak's Rough Set theory. We find rough set theory basing on difference relationm,which may be applies to complete information systems and incomplete information systems.