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dc.contributor.authorFerrés Domènech, Daniel
dc.contributor.authorKanaan Izquierdo, Samir
dc.contributor.authorGonzález Pellicer, Edgar
dc.contributor.authorAgeno Pulido, Alicia
dc.contributor.authorFuentes Fort, Maria
dc.contributor.authorRodríguez Hontoria, Horacio
dc.contributor.authorSurdeanu, Mihai
dc.contributor.authorTurmo Borras, Jorge
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics
dc.date.accessioned2013-09-27T16:48:34Z
dc.date.available2013-09-27T16:48:34Z
dc.date.created2005
dc.date.issued2005
dc.identifier.citationFerrés, D. [et al.]. TALP-UPC at TREC 2005: Experiments using voting scheme among three heterogeneous QA systems. A: Text Retrieval Conference. "Proceedings of the Fourteenth Text REtrieval Conference, TREC 2005, Gaithersburg, Maryland, November 15-18, 2005". Gaithersburg: 2005.
dc.identifier.urihttp://hdl.handle.net/2117/20231
dc.description.abstractThis paper describes the experiments of the TALP-UPC group for factoid and ’other’ (definitional) questions at TREC 2005 Main Question Answering (QA)task. Our current approach for factoid questions is based on a voting scheme among three QA systems: TALP-QA (our previous QA system), Sibyl (a new QA system developed at DAMA-UPC and TALP-UPC), and Aranea (a web-based data-driven approach). For defitional questions, we used two different systems: the TALP-QA Definitional system and LCSUM (a Summarization-based system). Our results for factoid questions indicate that the voting strategy improves the accuracy from 7.5% to 17.1%. While these numbers are low (due to technical problems in the Answer Extraction phase of TALP-QA system) they indicate that voting is a succesful approach for performance boosting of QA systems. The answer to definitional questions is produced by selecting phrases using set of patterns associated with definitions. Its results are 17.2% of F-score in the best configuration of TALP-QA Definitional system.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Informàtica
dc.titleTALP-UPC at TREC 2005: Experiments using voting scheme among three heterogeneous QA systems
dc.typeConference report
dc.contributor.groupUniversitat Politècnica de Catalunya. GPLN - Grup de Processament del Llenguatge Natural
dc.rights.accessOpen Access
drac.iddocument11147888
dc.description.versionPostprint (published version)
upcommons.citation.authorFerrés, D.; Kanaan, S.; Gonzàlez, E.; Ageno, A.; Fuentes, M.; Rodriguez, H.; Surdeanu, M.; Turmo, J.
upcommons.citation.contributorText Retrieval Conference
upcommons.citation.pubplaceGaithersburg
upcommons.citation.publishedtrue
upcommons.citation.publicationNameProceedings of the Fourteenth Text REtrieval Conference, TREC 2005, Gaithersburg, Maryland, November 15-18, 2005


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