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DFKI-LT at QA@CLEF 2008

  • Bogdan Sacaleanu
  • Günter Neumann
  • Christian Spurk
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5706)

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).

Keywords

Noun Phrase Question Answering Name Entity Question Concept Question Analysis 
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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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Bogdan Sacaleanu
    • 1
  • Günter Neumann
    • 1
  • Christian Spurk
    • 1
  1. 1.LT-Lab, DFKISaarbrückenGermany

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