摘要
定义了模糊上下文无关树文法(FCFTG),讨论了其构造性质,给出其分解定理及表现定理,进而讨论了由模糊上下文无关树文法生成的语言IO(Inside out),模糊IO树语言的封闭性.
The paper defines fuzzy-context-free tree grammars (FCFTG), discusses the structure of FCFTG and presents the decomposition theorem and representation theorem of FCFTG. Then, the paper discusses the languages IO(inside-out) generated by fuzzy context-free tree grammars. Finally the paper discusses the closure property of fuzzy IO tree languages.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
2004年第5期463-466,共4页
Journal of Sichuan Normal University（Natural Science）
基金
国家自然科学基金(69803007)资助项目
