本文将简要介绍单词的分类与词类标注的相关内容，在此基础上介绍句法处理的一个计算机模型：上下文无关语法。
This paper briefly introduces the classification of words and part-of-speech tagging, then introduces a computer model of syntactic processing: context-free grammar.
本文走从语言文字描述至符号化再到形式化的崭新道路，首先为一般性的智能控制系统提出并建造了结构模型，然后利用形式语言理论将结构模型推导成了一种上下文无关文法。
First, a structural model has been put forward and constructed for general ICS ', then by utilization of formal language theory, the structural model formulated as a kind of context-free grammar.
根据基因表达式编程的上下文无关文法模型，指出，基因表达式编程不能处理包含多个非终结符的上下文无关文法。
According 'to the context-free grammar model of GEP, the dissertation point out that Candida's GEP techniques cannot process context-free grammar with multiple none-terminals.
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