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Using answer retrieval patterns to answer portuguese questions
Abstract Esfinge is a general domain Portuguese queEsfinge is a general domain Portuguese question answering system which has been participating at QA@CLEF since 2004. It uses the information available in the "official" document collections used in QA@CLEF (newspaper text and Wikipedia) and information from the Web as an additional resource when searching for answers. Where it regards the use of external tools, Esfinge uses a syntactic analyzer, a morphological analyzer and a named entity recognizer. This year an alternative approach to retrieve answers was tested: whereas in previous years, search patterns were used to retrieve relevant documents, this year a new type of search patterns was also used to extract the answers themselves. We also evaluated the second and third best answers returned by Esfinge. This evaluation showed that when Esfinge answers correctly a question, it does so usually with its first answer. Furthermore, the experiments revealed that the answer retrieval patterns created for this participation improve the results, but only for definition questions.esults, but only for definition questions.
Abstractsub Esfinge is a general domain Portuguese queEsfinge is a general domain Portuguese question answering system which has been participating at QA@CLEF since 2004. It uses the information available in the "official" document collections used in QA@CLEF (newspaper text and Wikipedia) and information from the Web as an additional resource when searching for answers. Where it regards the use of external tools, Esfinge uses a syntactic analyzer, a morphological analyzer and a named entity recognizer. This year an alternative approach to retrieve answers was tested: whereas in previous years, search patterns were used to retrieve relevant documents, this year a new type of search patterns was also used to extract the answers themselves. We also evaluated the second and third best answers returned by Esfinge. This evaluation showed that when Esfinge answers correctly a question, it does so usually with its first answer. Furthermore, the experiments revealed that the answer retrieval patterns created for this participation improve the results, but only for definition questions.esults, but only for definition questions.
Bibtextype inproceedings  +
Doi 10.1007/978-3-642-04447-2_42  +
Has author Costa L.F. +
Has extra keyword Alternative approach + , Answer extraction + , Document collection + , External tools + , Morphological analyzer + , Named entities + , Previous year + , Question answering + , Question answering systems + , Relevant documents + , Search patterns + , Syntactic analyzers + , Wikipedia + , Linguistics + , Natural language processing systems +
Has keyword Answer Extraction + , Portuguese + , Question answering +
Isbn 3642044468; 9783642044465  +
Language English +
Number of citations by publication 0  +
Number of references by publication 0  +
Pages 361–368  +
Published in Lecture Notes in Computer Science +
Title Using answer retrieval patterns to answer portuguese questions +
Type conference paper  +
Volume 5706 LNCS  +
Year 2009 +
Creation dateThis property is a special property in this wiki. 8 November 2014 06:55:03  +
Categories Publications without license parameter  + , Publications without remote mirror parameter  + , Publications without archive mirror parameter  + , Publications without paywall mirror parameter  + , Conference papers  + , Publications without references parameter  + , Publications  +
Modification dateThis property is a special property in this wiki. 8 November 2014 06:55:03  +
DateThis property is a special property in this wiki. 2009  +
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