| 基于语义搭配的汉语短语界定研究 |
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| 引用本文： | 李向阳,张亚非.基于语义搭配的汉语短语界定研究[J].情报学报,2005,24(1):100-106. |
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| 作者姓名： | 李向阳 张亚非 |
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| 作者单位： | 1. 解放军理工大学通信工程学院,南京,210007
2. 解放军理工大学训练部,南京,210007 |
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| 基金项目： | 国家自然科学基金 (项目编号 60303024) |
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| 摘 要： | 简单分析了语法上界定汉语短语的困扰,提出一种利用语义搭配关系界定汉语短语的方法。首先,借助同义词词林实现语义知识的编码,用这种语义编码来表示语义搭配关系;其次,在此基础上,定义短语与已知语义搭配关系的相似性,计算词语搭配的合理性;最后,利用短语内部的语义搭配合理性优于其他搭配这一性质,用算法实现了基于语义的汉语短语界定过程。该方法应用于军事文本,从中界定出描述作战单位等信息的短语,取得较好的效果。此外,经该方法界定出的短语具有较强的语义信息,对信息抽取等实际应用具有一定的适用性。
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| 关 键 词： | 短语界定 语义搭配 语义相似性 信息抽取 |
| 修稿时间： | 2004年6月28日 |
Research on Chinese Phrase Parsing Using Semantic Collocations |
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| Li Xiangyang.Research on Chinese Phrase Parsing Using Semantic Collocations[J].Journal of the China Society for Scientific andTechnical Information,2005,24(1):100-106. |
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| Authors: | Li Xiangyang |
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| Abstract: | After simply analyzing of puzzles in locating Chinese phrases boundaries with syntax,a method utilizing semantic collocations to parse phrases is presented.First, Synonymy Thesaurus is used to code word senses and the codes are then used for representing semantic collocations.Based on the representations,definitions of similarity between phrases and known semantic collocations are induced and used for computation of collocation rationality between words.As collocation rationality within a phrase is stronger than that between phrases,it is implemented in algorithms as a criteria for whether two words belong to the same phrase.The method is applied to military texts to extract phrases describing operational units and results in good performance.Meanwhile,phrases got by the method have semantic information and this implies practical usage for applications such as information extraction. |
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| Keywords: | phrase boundary location semantic collocation semantic similarity information extraction |
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