These rules are also suitable for other methods for inferring context-free grammars.
这些启发规则同时也适用于对上下文无关文法的其它推断方法。
Wikipedia, the free encyclopedia, offers an overview of Computational linguistics and context-free grammars with, as always, good links to more information about both.
免费的百科全书Wikipedia提供了对计算语言学和上下文无关语法的概要介绍，并且给出了关于它们两者的资料的有用链接。
Fuzzy context-free grammar is one important kind of grammars.
模糊上下文无关文法是几种重要文法之一。
Fuzzy context-free grammar is one important kind of grammars.
模糊上下文无关文法是几种重要文法之一。
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