Experiments on Cross–Linguality and Question–Type Driven Strategy Selection for Open–Domain QA

  • Günter Neumann
  • Bogdan Sacaleanu
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4022)


We describe the extensions made to our 2004 QA@CLEF German/English QA-system, toward a fully German-English/English-German cross-language system with answer validation through web usage. Details concerning the processing of factoid, definition and temporal questions are given and the results obtained in the monolingual German, bilingual English-German and German-English tasks are briefly presented and discussed.


North American Free Trade Agreement Question Word Information Unit Name Entity Answer Validation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    Neumann, G., Sacaleanu, B.: Experiments on Robust NL Question Interpretation and Multi-layered Document Annotation for a Cross–Language Question/Answering System. In: Peters, C., Clough, P., Gonzalo, J., Jones, G.J.F., Kluck, M., Magnini, B. (eds.) CLEF 2004. LNCS, vol. 3491, pp. 411–422. Springer, Heidelberg (2005)CrossRefGoogle Scholar
  2. 2.
    Rijsbergen, C.V.: The Geometry of Information Retrieval. Cambridge University Press, Cambridge (2004)MATHCrossRefGoogle Scholar
  3. 3.
    Moldovan, D., Harabagui, S., Clark, C., Bowden, M., Lehmann, J., Williams, J.: Experiments and analysis of lcc’s two qa systems over trec 2004. In: Proceedings of The Thirteenth Text Retrieval Conference (TREC 2004), Gaithersburg, USA (2004)Google Scholar
  4. 4.
    Neumann, G., Piskorski, J.: A shallow text processing core engine. Computational Intelligence 18(3), 451–476 (2002)CrossRefGoogle Scholar
  5. 5.
    Basten, R.: Answering open-domain temporally restricted questions in a multi-lingual context. Master’s thesis, University of Twente and LT-lab DFKI (2005)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Günter Neumann
    • 1
  • Bogdan Sacaleanu
    • 1
  1. 1.LT–Lab, DFKISaarbrückenGermany

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