Priberam's Question Answering System in QA@CLEF 2007

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Priberam's Question Answering System in QA@CLEF 2007
This paper accounts for Priberam's participation in the monolingual question answering (QA) track of CLEF 2007. In previous participations, Priberam’s QA system obtained encouraging results both in monolingual and cross-language tasks. This year we endowed the system with syntactical processing, in order to capture the syntactic structure of the question. The main goal was to obtain a more tuned question categorisation and consequently a more precise answer extraction. Besides this, we provided our system with the ability to handle topic-related questions and to use encyclopaedic sources like Wikipedia. The paper provides a description of the improvements made in the system, followed by the discussion of the results obtained in Portuguese and Spanish monolingual runs. ACM Categories and Subject Descriptors H.2 [Database Management]: H.2.3 Languages - Query Languages H.3 [Information Storage and Retrieval]: H.3.1 Content Analysis and Indexing; H.3.3 Information Search and Retrie...
Carlos Amaral, Adán Cassan, Helena Figueira
Added 07 Jun 2010
Updated 07 Jun 2010
Type Conference
Year 2007
Where CLEF
Authors Carlos Amaral, Adán Cassan, Helena Figueira, André F. T. Martins, Afonso Mendes, Pedro Mendes, Cláudia Pinto, Daniel Vidal
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