Microsoft Word - 3494.doc 关键词： 自然语言处理；语言模式化；短语结构；俄语句法学 [gap=9711]Keywords: NLP; language modeling; phrase structures; Russian syntax
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根据短语结构规则，短语和句子可以无限循环地组合起来。
These rules can generate an infinite number of sentences, and sentence with infinite length, due to their.
短语结构树与依存树之间的转换是计算语言学重要的研究内容之一。
Converting between phrase-structure tree and dependency tree is one of the most important subjects in computational linguistics.
从形式上讲，一条短语结构规则包括两部分，产生式规则和合一等式。
Each rule includes two parts: a context free rewrite rule and a series of unification equations.
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