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Algebra-Based Retrieval Model and Its Extension |
Wang Zhijin Zheng Hongjun |
(The Department of Library Science, Nankai University, Tianjin 300071, China) |
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Abstract In information retrieval, Algebra Theory is one of significant tools of Retrieval Modeling. The models on the basis of Algebra overcome the fault that partial matching can not be implemented within Boolean Model, then become more and more popular. This article analyses the Vector Space Model based on Algebra, and expands the model: expresses the index terms with minterm in order to reflect the relationship between terms, uses singular value decomposition to present the semantic structure of documents. At last, makes the compare between these models.
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Received: 14 March 2005
Published: 25 July 2005
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Corresponding Authors:
Wang Zhijin
E-mail: Wangzhijin@nakai.edu.cn
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About author:: Wang Zhijin,Zheng Hongjun |
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