| 基于查询词扩展的文本检索算法研究 |
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| 引用本文： | 王海云,刘金岭. 基于查询词扩展的文本检索算法研究[J]. 计算机与数字工程, 2011, 39(6): 15-17,35 |
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| 作者姓名： | 王海云 刘金岭 |
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| 作者单位： | 1. 江南大学物联网工程学院,无锡,214122
2. 淮阴工学院计算机工程学院,淮安,223003 |
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| 基金项目： | 淮安科技计划项目，淮阴工学院重点基金项目 |
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| 摘 要： | 针对文本检索中所使用的查询词可能与文本词语不匹配而影响检索效果这一问题,提出了一种基于上下文的查询词扩展的方法,该方法根据查询词出现的上下文信息进行扩展词选择,同时考虑到查询扩展词与整个查询语句以及查询词的位置关系。实验结果表明,该方法大大提高了平均查准率。
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| 关 键 词： | 查询词 查询扩展词 文本检索 上下文 词共现 |
Research on the Chinese Text Retrieval Methord Based on Query Term Extended |
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| Wang Haiyun,Liu Jinling. Research on the Chinese Text Retrieval Methord Based on Query Term Extended[J]. Computer and Digital Engineering, 2011, 39(6): 15-17,35 |
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| Authors: | Wang Haiyun Liu Jinling |
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| Affiliation: | 2)(School of Internet of Things Engineering,Jiangnan University1),Wuxi 214122)(Computer Engineering Faculty,Huaiyin Institute of Technology2),Huai’an 223003) |
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| Abstract: | Search term used in information retrieval and word in the text may focus on the words do not match the text to affect information retrieval on this issue.According to the problems propose a new method of query expansion on the basic of context and global information.At the same time,the expansion terms are selected according to their relation with the whole query.Additionally,the position information between terms is considered.The results show that the method greatly improves average precision. |
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| Keywords: | search term query expansion text retrieval context word co-occurrence |
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