Head/modifier pairs for everyone

Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval Pub Date : 2003-07-28 DOI:10.1145/860435.860557

C. Koster

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引用次数: 4

Abstract

The “English Phrases for IR” (EP4IR) grammar is a grammar of English concentrating on the description of the noun phrase and the verb phrase. The grammar is provided with a large lexicon, providing detailed Part-Of-Speech information. It is quite robust against badly formed input and unknown words and generates only the most probable analysis. The EP4IR grammar and lexicon are released along with the AGFL system [1], which is the first parser-generator for linguistic applications available under the GNU Public License. The parsers generated from it fall under the LGPL, so that they can be used for scientific and even commercial applications. From the EP4IR grammar and lexicon, an English parser can be generated automatically using the AGFL system, which produces as its output not parse trees but Head/ Modifier trees, binary dependency trees that can be unnested to Head/Modifier pairs. In this transduction process, the HM trees are syntactically normalized. The pairs generated when parsing some text represent only the major relations expressed in the text [2]:

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每个人的头/修饰语对

“IR英语短语”(EP4IR)语法是一种集中描述名词短语和动词短语的英语语法。语法提供了大量的词汇，提供了详细的词性信息。它对格式错误的输入和未知的单词具有很强的鲁棒性，并且只生成最可能的分析。EP4IR语法和词典与AGFL系统一起发布[1]，AGFL系统是GNU公共许可证下可用的语言应用程序的第一个解析器-生成器。由它生成的解析器属于LGPL，因此它们可以用于科学甚至商业应用程序。从EP4IR语法和词典中，可以使用AGFL系统自动生成一个英语解析器，该系统的输出不是解析树，而是头/修饰符树，这是一种可以解嵌到头/修饰符对的二元依赖树。在这个转导过程中，HM树在语法上归一化。解析某些文本时生成的对仅代表文本中表达的主要关系[2]:

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval

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