Concept Hierarchy-Based Text Database Categorization
作者:Weiyi Meng, Wenxian Wang, Hongyu Sun, Clement Yu
摘要
Document categorization as a technique to improve the retrieval of useful documents has been extensively investigated. One important issue in a large-scale metasearch engine is to select text databases that are likely to contain useful documents for a given query. We believe that database categorization can be a potentially effective technique for good database selection, especially in the Internet environment where short queries are usually submitted. In this paper, we propose and evaluate several database categorization algorithms. This study indicates that while some document categorization algorithms could be adopted for database categorization, algorithms that take into consideration the special characteristics of databases may be more effective. Preliminary experimental results are provided to compare the proposed database categorization algorithms. A prototype database categorization system based on one of the proposed algorithms has been developed.
论文关键词:Keywords: Categorization; Database concept hierarchy; Database selection; Metasearch
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论文官网地址:https://doi.org/10.1007/s101150200001