摘要
在模糊粗糙集模型中引入模糊相似关系,定义了一组上、下近似集,并讨论了模糊相似关系下的模糊粗糙集的一些性质,得出了它在模糊相似关系的包含运算、并运算、交运算、合成运算及闭包运算下的一些结论.最后定义了模糊粗糙集在模糊相似关系下的粗糙度和近似精度,并得出了一些结果.
In the paper, fuzzy rough sets based on fuzzy similar relation is first introduced, and their and lower approximation sets are defined. Some properties of fuzzy rough sets based on fuzzy similar relation are discussed and deduced some results under all kinds of relation operations. Finally, a coarseness degree and an approximation accuracy of fuzzy rogh sets based on fuzzy similar relation,are defined and got some resultses.
出处
《辽宁师范大学学报（自然科学版）》
CAS
北大核心
2006年第3期289-291,共3页
Journal of Liaoning Normal University:Natural Science Edition
关键词
模糊相似关系
模糊粗糙集
粗糙度
近似精度
关系运算
fuzzy similar relation
fuzzy rough sets
coarseness degree
aproximation acuracy
relation operation
