| Summary: | 碩士 === 元智大學 === 資訊工程學系 === 95 === In many areas, information is organized in catalogs on the Web. Demands of integration two catalogs appear in many applications. These catalogs usually contain a lot of Web documents and have complicated hierarchical structures. Therefore, how to integrate two catalogs accurately becomes an important research topic.
For the catalog integration problem, past studies mainly focus on flattened catalogs, and only few papers further discuss the integration of hierarchical catalogs. To the best
of our survey, no research has discussed the improvement from additional semantic information on hierarchical catalog integration. This thesis presents an enhancement based
on the Maximum Entropy (ME) model using the hierarchical thesaurus information embedded in the catalogs and the additional semantic features expanded from an external
corpus. Experimental results on real-world catalogs indicate that the proposed approach consistently improves the integration performance.
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