Where in the Wikipedia is that answer? the XLDB at the GikiCLEF 2009 task

Authors:
Nuno Cardoso;David Batista;Francisco J. Lopez-Pellicer;Mário J. Silva
Affiliations:
University of Lisbon, Faculty of Sciences, LaSIGE;University of Lisbon, Faculty of Sciences, LaSIGE;IAAA, Centro Politécnico Superior, Universidad de Zaragoza, Spain;University of Lisbon, Faculty of Sciences, LaSIGE
Venue:
CLEF'09 Proceedings of the 10th cross-language evaluation forum conference on Multilingual information access evaluation: text retrieval experiments
Year:
2009

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Abstract

We developed a new semantic question analyser for a custom prototype assembled for participating in GikiCLEF 2009, which processes grounded concepts derived from terms, and uses information extracted from knowledge bases to derive answers. We also evaluated a newly developed named-entity recognition module, based in Conditional Random Fields, and a new world geoontology, derived from Wikipedia, which is used in the geographic reasoning process.