| 一种面向用户兴趣的个性化语义查询扩展方法 |
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| 引用本文： | 张克状,刘友华,黄芳,李寅.一种面向用户兴趣的个性化语义查询扩展方法[J].现代图书情报技术,2008,24(8):48-52. |
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| 作者姓名： | 张克状 刘友华 黄芳 李寅 |
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| 作者单位： | 1. 南京大学信息管理系,南京,210093
2. 南京大学工程管理学院,南京,210093 |
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| 摘 要： | 在基于本体的语义查询扩展研究的基础上，结合用户模型的研究，提出要将用户的兴趣模型与查询扩展相结合，实现个性化的语义查询扩展，并把个性化的语义查询扩展过程分为两个阶段——检索关键词向用户模型中的个性化领域本体概念的映射以及在本体层次对映射概念的语义扩展,给出每一阶段的实现算法。实验表明该方法能够提高信息检索的查准率和查全率，在一定程度上满足个性化的查询需求。
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| 关 键 词： | 查询扩展 本体 个性化 用户兴趣 |
| 收稿时间： | 2008-05-28 |
| 修稿时间： | 2008-06-12 |
A Semantic and Personalized Query Expansion Method Based on Users’Interests |
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| Zhang Kezhuang,Liu Youhua,Huang Fang,Li Yin.A Semantic and Personalized Query Expansion Method Based on Users’Interests[J].New Technology of Library and Information Service,2008,24(8):48-52. |
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| Authors: | Zhang Kezhuang Liu Youhua Huang Fang Li Yin |
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| Institution: | (Department of Information Management,Nanjing University, Nanjing 210093, China)
(School of Management and Engineering,Nanjing University, Nanjing 210093, China)
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| Abstract: | This paper proposes a new query expansion method which combines user modeling research and the research of query expansion based on Ontology,realizing the personalized semantic query expansion. And it divides the process of personalized semantic query expansion into two stage ——the mapping from keywords to the concepts included in the user modeling and the semantic extension at the level of Ontology, and the algorithm of each stage is gaven in this papar. The experiment indicates that this method can enhance the accuracy ratio and the recall of the information retrieval, and meet personalized needs in the certain extent. |
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| Keywords: | Query expansion Ontology Persionalization User interest |
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