Abstract
The paper describes QUANTICO, a cross-language open domain factoid question answering system for German and English document collections. The main features of the system are: use of preemptive off-line document annotation with information like Named Entities, abbreviation-extension pairs and appositional constructions; use of online translation services for the cross-language scenarios; use of redundancy as an indicator of good answer candidates; selection of the best answers based on distance metrics defined over graph representations. The results of evaluating the system’s performance by QA@CLEF 2008 were as follows: for the German-German run we achieved a best overall accuracy (ACC) of 37%; for the English-German run 14.5% (ACC); and for the German-English run 14% (ACC).
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Bowden, M., Olteanu, M., Suriyentrakorn, P., Clark, J., Moldovan, D.: LCC’s PowerAnswer at QA@CLEF 2006. In: Peters, C., Clough, P., Gey, F.C., Karlgren, J., Magnini, B., Oard, D.W., de Rijke, M., Stempfhuber, M. (eds.) CLEF 2006. LNCS, vol. 4730, pp. 310–317. Springer, Heidelberg (2007)
Echihabi, A., Oard, D.W., Marcu, D., Hermjakob, U.: Cross-Language QA at the USC Information Sciences Institute. In: Peters, C., Gonzalo, J., Braschler, M., Kluck, M. (eds.) CLEF 2003. LNCS, vol. 3237, pp. 514–522. Springer, Heidelberg (2004)
Lita, L.V., Rogati, M., Barbonell, J.: Cross Lingual QA: Modular Baseline. In: Peters, C., Gonzalo, J., Braschler, M., Kluck, M. (eds.) CLEF 2003. LNCS, vol. 3237, pp. 535–540. Springer, Heidelberg (2004)
Neumann, G., Piskorski, J.: A shallow text processing core engine. Computational Intelligence 18(3), 451–476 (2002)
Neumann, G., Sacaleanu, B.: Experiments on Robust NL Question Interpretation and Multilayered 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)
Sacaleanu, B., Neumann, G.: Cross-Cutting Aspects of Cross-Language Question Answering Systems. In: Proceedings of the EACL workshop on Multilingual Question Answering - MLQA 2006 (2006)
Sutcliffe, R., Gabbay, I., O’Gorman, A.: Cross-Language French-English QA using the DLT System at CLEF 2003. In: Peters, C., Gonzalo, J., Braschler, M., Kluck, M. (eds.) CLEF 2003. LNCS, vol. 3237, pp. 572–580. Springer, Heidelberg (2004)
Alias-i.2006. LingPipe1.7, http://www.alias-i.com/lingpipe
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Sacaleanu, B., Neumann, G., Spurk, C. (2009). DFKI-LT at QA@CLEF 2008. In: Peters, C., et al. Evaluating Systems for Multilingual and Multimodal Information Access. CLEF 2008. Lecture Notes in Computer Science, vol 5706. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04447-2_50
Download citation
DOI: https://doi.org/10.1007/978-3-642-04447-2_50
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04446-5
Online ISBN: 978-3-642-04447-2
eBook Packages: Computer ScienceComputer Science (R0)