DFKI-LT - A multilingual framework for searching definitions on web snippets

Alejandro Figueroa, Günter Neumann
A multilingual framework for searching definitions on web snippets
in: J. Hertzberg, M. Beetz, R. Englert (eds.):
2 Proceedings of the 30th Annual German Conference on Artificial Intelligence volume 4667,
LNCS, Pages 144-159, Osnabrück, Germany, Springer, 2007

 
This work presents Mdef-WQA, a system that searches for answers to definition questions in several languages on web snippets. For this purpose, Mdef-WQA biases the search engine in favour of some syntactic structures that often convey definitions. Once descriptive sentences are identified, Mdef-WQA clusters them by potential senses and presents the most relevant phrases of each potential sense to the user. The approach was assessed with TREC and CLEF data. As a result, Mdef-WQA was able to extract descriptive information for all definition questions in the TREC 2001 and 2003 data-sets.
 
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