Measuring concept relatedness using language models
conference paper
Over the years, the notion of concept relatedness has attracted considerable attention. A variety of approaches, based on ontology structure, information content, association, or context have been proposed to indicate the relatedness of abstract ideas. We propose a method based on the cross entropy reduction between language models of concepts which are estimated based on document-concept assignments. The approach shows improved or competitive results compared to state-of-the-art methods on two test sets in the biomedical domain.
Topics
TNO Identifier
241282
Source title
31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, ACM SIGIR 2008, 20-24 July 2008, Singapore
Pages
823-824
Files
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