Concept hierarchy based text database categorization in a metasearch engine environment

摘要: Document categorization, as a technique to improve the retrieval of useful documents, has been extensively investigated. One important issue in large-scale meta-search engine is select text databases that are likely contain documents for given query. We believe database categorization can be potentially effective good selection, especially Internet environment, where short queries usually submitted. In this paper, we propose and evaluate several algorithms. This study indicates that, while some document algorithms could adopted take into consideration special characteristics may more effective. Preliminary experimental results provided compare proposed