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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 5 of 5 1 Ontologies in cross-language information retrieval Volk, Martin; Vintar, S; Buitelaar, P In: Volk, Martin; Vintar, S; Buitelaar, P (2003). Ontologies in cross-language information retrieval. In: 2nd Conference on Professional Knowledge Management, Luzern, 2003 - 2003. (2003) Abstract: We present an approach to using ontologies as interlingua in cross-language information retrieval in the medical domain. Our approach is based on using the Unified Medical Language System (UMLS) as the primary ontology. Documents and queries are annotated with multiple layers of linguistic information (part-of-speech tags, lemmas, phrase chunks). Based on this we identify medical terms and semantic relations between them and map them to their position in the ontology. The paper describes experiments in monolingual and cross-language document retrieval, performed on a corpus of medical abstracts. Results show that semantic information, specifically the combined use of concepts and relations, increases the precision in monolingual retrieval. In cross-language retrieval the semantic annotation outperforms machine translation of the queries, but the best results are achieved by combining a similarity thesaurus with the semantic codes. Keyword: 000 Computer science; 410 Linguistics; Institute of Computational Linguistics; knowledge & systems URL: https://doi.org/10.5167/uzh-20341 https://www.zora.uzh.ch/id/eprint/20341/2/Volk_Vintar_Buitelaar_2003V.pdf https://www.zora.uzh.ch/id/eprint/20341/ BASE Hide details 2 A cross-language document retrieval system based on semantic annotation Sacaleanu, B; Buitelaar, P; Volk, Martin In: Sacaleanu, B; Buitelaar, P; Volk, Martin (2003). A cross-language document retrieval system based on semantic annotation. In: EACL, Budapest, Hungary, 2003 - 2003. (2003) BASE Show details 3 Semantic relations in concept-based cross-language medical information retrieval Vintar, S; Buitelaar, P; Volk, Martin In: Vintar, S; Buitelaar, P; Volk, Martin (2003). Semantic relations in concept-based cross-language medical information retrieval. In: Workshop on Adaptive Text Extraction and Mining, Cavtat_Dubrovnik, 2003 - 2003. (2003) BASE Show details 4 Semantic annotation for concept-based cross-language medical information retrieval Volk, Martin; Ripplinger, B; Vintar, S... In: Volk, Martin; Ripplinger, B; Vintar, S; Buitelaar, P; Raileanu, D; Sacaleanu, B (2002). Semantic annotation for concept-based cross-language medical information retrieval. International Journal of Medical Informatics, 67(1-3):97-112. (2002) BASE Show details 5 A systematic evaluation of concept-based cross-language information retrieval in the medical domain Volk, Martin; Buitelaar, P In: Volk, Martin; Buitelaar, P (2002). A systematic evaluation of concept-based cross-language information retrieval in the medical domain. In: 3rd Dutch-Belgian Information Retrieval Workshop, Leuven, 2002 - 2002. (2002) BASE Show details

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