| 概念空间中上下位关系的意义识别研究 |
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| 引用本文： | 刘磊,曹存根,张春霞,田国刚. 概念空间中上下位关系的意义识别研究[J]. 计算机学报, 2009, 32(8). DOI: 10.3724/SP.J.1016.2009.01651 |
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| 作者姓名： | 刘磊 曹存根 张春霞 田国刚 |
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| 作者单位： | 北京工业大学应用数理学院,北京,100124;中国科学院计算技术研究所,北京,100190;北京理工大学软件学院,北京,100081 |
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| 基金项目： | 国家自然科学基金，国冢"八六三"高技术研究发展计划项目基金，北京工业大学博士启动基金 |
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| 摘 要： | 针对上下位关系在分类层级结构建立阶段遇到的多义性问题,给出一种概念空间中上下位关系意义识别的方法.单个概念的意义识别问题被转换为概念空间中上下位关系的意义识别.首先利用并列语境解决语境稀疏问题,获取上下位关系意义的语境.然后利用<同义词词林>对每个语境进行词义修正,以三种特征计算特征词权重,构建"关系一词'的高维向量空间,然后通过潜在语义分析降维,获取上下位关系意义的潜在语义,最后组平均聚类后得到关系的意义划分.在实验中,给出了聚类阈值自动调整函数,分析了词林和潜在语义分析的作用,实验结果证实了方法的有效性.
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| 关 键 词： | 知识获取 上下位关系 潜在语义分析 关系获取 概念空间 意义聚类 |
Sense Recognition Research of Hyponymy Based on Concept Space |
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| LIU Lei,CAO Cun-Gen,ZHANG Chun-Xia,TIAN Guo-Gang. Sense Recognition Research of Hyponymy Based on Concept Space[J]. Chinese Journal of Computers, 2009, 32(8). DOI: 10.3724/SP.J.1016.2009.01651 |
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| Authors: | LIU Lei CAO Cun-Gen ZHANG Chun-Xia TIAN Guo-Gang |
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| Affiliation: | College of Applied Sciences;Beijing University of Technology;Beijing 100124;Institute of Computing Technology;Chinese Academy of Sciences;Beijing 100190;School of Computer Software;Beijing Institute of Technology;Beijing 100081 |
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| Abstract: | For the polysemy of hyponymy in the phase of building taxonomic hierarchy,this paper presents a method of sense recognition of hyponymy based on concept space.The problem of sense recognition of single concept is transformed into recognition of hyponymy in concept space.Firstly,the contexts of hyponymy are acquired iteratively using coordinate relation patterns.Secondly CiLin and the weight of feature words are used to construct a hyponymy-word vector space.Then LSA is used to reduce the dimension of the ve... |
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| Keywords: | knowledge acquisition hyponymy relation latent semantic analysis relation acquisition concept space sense clustering |
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