摘要
从正则语言的代数结构出发,利用Rough集理论对正则语言进行了扩充。提出了下(上)粗糙正则语言的概念,并给出了它们存在的条件,以及和正则语言之间的关系。
In this paper, from algebraic structure of regular language, we extend regular language by the theory of rough set, and advance concept of lower (upper) rough regular language and give condition of their existence and relation with regular language.
出处
《遵义师范学院学报》
2005年第6期47-48,共2页
Journal of Zunyi Normal University
关键词
粗糙集
正则语言
同余关系
粗糙正则语言
Rough set
regular language
congruence relation
rough regular language