Skip to main content

LogAnswer - A Deduction-Based Question Answering System (System Description)

  • Conference paper
Automated Reasoning (IJCAR 2008)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 5195))

Included in the following conference series:

Abstract

LogAnswer is an open domain question answering system which employs an automated theorem prover to infer correct replies to natural language questions. For this purpose LogAnswer operates on a large axiom set in first-order logic, representing a formalized semantic network acquired from extensive textual knowledge bases. The logicbased approach allows the formalization of semantics and background knowledge, which play a vital role in deriving answers. We present the functional LogAnswer prototype, which consists of automated theorem provers for logical answer derivation as well as an environment for deep linguistic processing.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bos, J.: Doris 2001: Underspecification, resolution and inference for discourse representation structures. In: ICoS-3 - Inference in Compuational Semantics, Workshop Proceedings (2001)

    Google Scholar 

  2. Moldovan, D., Bowden, M., Tatu, M.: A temporally-enhanced PowerAnswer in TREC 2006. In: Proc. of TREC 2006, Gaithersburg, MD (2006)

    Google Scholar 

  3. Saias, J., Quaresma, P.: The Senso question answering approach to Portuguese QA@CLEF-2007. In: Working Notes for the CLEF 2007 Workshop, Budapest, Hungary (2007)

    Google Scholar 

  4. Tatu, M., Iles, B., Moldovan, D.: Automatic answer validation using COGEX. 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. Springer, Heidelberg (2007)

    Chapter  Google Scholar 

  5. Glöckner, I.: University of Hagen at QA@CLEF 2007: Answer validation exercise. In: Working Notes for the CLEF 2007 Workshop, Budapest (2007)

    Google Scholar 

  6. Hartrumpf, S.: Hybrid Disambiguation in Natural Language Analysis. Der Andere Verlag, Osnabrück, Germany (2003)

    Google Scholar 

  7. Helbig, H.: Knowledge Representation and the Semantics of Natural Language. Springer, Heidelberg (2006)

    MATH  Google Scholar 

  8. Leveling, J.: IRSAW – towards semantic annotation of documents for question answering. In: CNI Spring 2007 Task Force Meeting, Phoenix, Arizona (2007)

    Google Scholar 

  9. Glöckner, I.: Towards logic-based question answering under time constraints. In: Proc.of ICAIA 2008, Hong Kong, pp. 13–18 (2008)

    Google Scholar 

  10. Glöckner, I., Pelzer, B.: Exploring robustness enhancements for logic-based passage filtering. In: Proceedings of KES 2008. LNCS. Springer, Heidelberg (to appear, 2008)

    Google Scholar 

  11. Pelzer, B., Wernhard, C.: System Description: E-KRHyper. In: Automated Deduction - CADE-21, Proceedings, pp. 508–513 (2007)

    Google Scholar 

  12. Baumgartner, P., Furbach, U., Pelzer, B.: Hyper Tableaux with Equality. In: Automated Deduction - CADE-21, Proceedings, pp. 492–507 (2007)

    Google Scholar 

  13. Sutcliffe, G., Suttner, C.: The TPTP Problem Library: CNF Release v1.2.1. Journal of Automated Reasoning 21(2), 177–203 (1998)

    Article  MATH  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Alessandro Armando Peter Baumgartner Gilles Dowek

Rights and permissions

Reprints and permissions

Copyright information

© 2008 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Furbach, U., Glöckner, I., Helbig, H., Pelzer, B. (2008). LogAnswer - A Deduction-Based Question Answering System (System Description). In: Armando, A., Baumgartner, P., Dowek, G. (eds) Automated Reasoning. IJCAR 2008. Lecture Notes in Computer Science(), vol 5195. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-71070-7_11

Download citation

  • DOI: https://doi.org/10.1007/978-3-540-71070-7_11

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-71069-1

  • Online ISBN: 978-3-540-71070-7

  • eBook Packages: Computer ScienceComputer Science (R0)

Publish with us

Policies and ethics