Question Answering and Multi-search Engines in Geo-Temporal Information Retrieval

  • Fernando S. Peregrino
  • David Tomás
  • Fernando Llopis Pascual
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7182)


In this paper we present a complete system for the treatment of both geographical and temporal dimensions in text and its application to information retrieval. This system has been evaluated in both the GeoTime task of the 8th and 9th NTCIR workshop in the years 2010 and 2011 respectively, making it possible to compare the system to contemporary approaches to the topic. In order to participate in this task we have added the temporal dimension to our GIR system. The system proposed here has a modular architecture in order to add or modify features. In the development of this system, we have followed a QA-based approach as well as multi-search engines to improve the system performance.


Geographical Information Retrieval Geo-Tagging Spacial Information Temporal Information 


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  1. 1.
    Manning, C.D., Raghavan, P., Schtze, H.: An Introduction to Information Retrieval. Cambridge University Press (2009)Google Scholar
  2. 2.
    Gey, F., Larson, R.R., Machado, J., Yoshioka, M.: NTCIR9-GeoTime Overview - Evaluating Geographic and Temporal Search: Round 2 (2011)Google Scholar
  3. 3.
    Robertson, S.E., Walker, S., Hancock-Beaulieu, M.: Okapi at TREC-7: Automatic Ad Hoc, Filtering, VLC and Interactive, pp. 199–210. NIST (1998)Google Scholar
  4. 4.
    Gey, F., Larson, R.R., Kando, N., Machado, J., Sakai, T.: NTCIR-GeoTime Overview: Evaluating Geographic and Temporal Search, pp. 147–153 (2010)Google Scholar
  5. 5.
    Järvelin, K., Kekäläinen, J.: Cumulated gain-based evaluation of ir techniques. ACM Trans. Inf. Syst. 20, 422–446 (2002)CrossRefGoogle Scholar
  6. 6.
    Perea-Ortega, J.M.: Recuperación de información geográfica basada en múltiples formulaciones y motores de búsqueda. Procesamiento del Lenguaje Natural 46, 131–132 (2011) ISSN 1135-5948Google Scholar
  7. 7.
    Peregrino, F.S., Tomás, D., Llopis, F.: University of Alicante at NTCIR-9 GeoTime. In: Proceedings of the 9th NTCIR Workshop Meeting on Evaluation of Information Access Technologies (2011)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Fernando S. Peregrino
    • 1
  • David Tomás
    • 1
  • Fernando Llopis Pascual
    • 1
  1. 1.Department of Software and Computing SystemsUniversity of AlicanteAlicanteSpain

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