摘要
研究了两类Vague关系下Vague集的近似结构。通过引入Vague等价关系,给出了Vague集在Vague关系下的两组下、上近似,进而定义了两种新的粗糙集模型,并对此模型的几种特殊情形进行了分析,指出此两种模型均是较为一般化的粗糙集模型。此两种模型的建立,一定程度上完善了粗糙集的理论体系。
In this paper, two kinds of lower approximation and upper approximation of vague sets are defined by use of vague relations. Then different cases of these vague rough sets are discussed, the conclusion is obtained that these two kinds of vague rough sets are generalized rough set model. The study of vague rough sets are meaningful for application of rough set theory.
出处
《红河学院学报》
2007年第5期14-16,共3页
Journal of Honghe University
基金
红河学院科研启动基金资助项目(XSS06007)
