基于查询扩展词条加权的文本检索研究
收稿日期: 2010-01-28
修回日期: 2010-05-21
网络出版日期: 2011-01-25
基金资助
国家自然科学基金资助项目(60173060)
Research on the Text Retrieval Based on the Weight of the Expanding Query Term
Received date: 2010-01-28
Revised date: 2010-05-21
Online published: 2011-01-25
张映海,张宇薇 . 基于查询扩展词条加权的文本检索研究[J]. 计算机工程与科学, 2011 , 33(1) : 161 -165 . DOI: 10.3969/j.issn.1007130X.2011.
The text retrieval with keywords is analyzed, and the recall rate is low without the expanding query. And as for the text retrieval with concept, the weights between the expanding query terms and query words are not distinguished. So, a method named expansion lessening, which is used for computing the weight of the expanding query term by the dint of words semantic similarity, is proposed. By expansion lessening, the expanding query term and query words are used to construct a vector space model for text search. Experiments show that the integrated performance of the constructed retrieval model is improved greatly in text search.
[1]李晓黎,周长胜.基于相关反馈技术的Web检索改进研究与实现[J].航空计算技术,2004,34(3):129132.
[2]储荷婷,张晓林.Internet网络信息检索——原理 工具 技巧[M].北京:清华大学出版社,1999.
[3]袁占亭,张爱民,张余秋.基于概念的Web信息检索[J].计算机工程与应用,2003,39(36):173181.
[4]张敏,宋睿华,马少平.基于语义关系查询扩展的文档重构方法[J].计算机学报,2004,27(10):13951400.
[5]董振东,董强.“知网”[EB/OL].[20100110].http://www.keenage.com.
[6]Lin D,Pantel P.Concept Discovery from Text[C]∥Proc of Conf on Computational Linguistics,2002:577583.
[7]Cooper W S.Getting Beyond Boole[J]. Information Processing and Management,1988,24(3):225243.
[8]FAN Xiaozhong,LI Hongqiao,LI Liangfu.Hybrid Chinese Information Retrieval Model Based on the Combination of Keyword and Concept[J].Journal of Beijing institute of Technology,2003(12):120123.
[9]Salton G,Wong A,Yang C S.On the Specification of Term Values in Automatic Indexing[J]. Journal of Documentation,1973,29(4):351372.
[10]Hinrich.统计自然语言处理基础[M].苑春法,李庆中,王昀,等译.北京:电子工业出版社,2005.
[11]Salton G,Wong A,Yang C S. A Vector Model for Automatic Indexing[J]. Communications of the ACM,1975,18(11):613620.
[12]刘群,李素建.基于《知网》的词汇语义相似度计算[C]∥第三届中文词汇语义学研讨会论文集,2002:5976.
/
| 〈 |
|
〉 |