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Query Expansion for Effective Geographic Information Retrieval

  • Conference paper
Evaluating Systems for Multilingual and Multimodal Information Access (CLEF 2008)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 5706))

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Abstract

We developed two methods for monolingual Geo-CLEF 2008 task. The GCEC method aims to test the effectiveness of our online geographic coordinates extraction and clustering algorithm, and the WIKIGEO method wants to examine the usefulness of using the geographic coordinates information in Wikipedia for identifying geo-locations. We proposed a measure of topic distance to evaluate these two methods. The experiments results show that: 1) our online geographic coordinates extraction and clustering algorithm is useful for the type of locations that do not have clear corresponding coordinates; 2) the expansion based on the geo-locations generated by GCEC is effective in improving geographic retrieval; 3) Wikipedia can help in finding the coordinates for many geo-locations, but its usage for query expansion still needs further study; 4) query expansion based on title only obtained better results than that on the title and narrative parts, even though the latter contains more related geographic information. Further study is needed for this part.

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References

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Authors and Affiliations

  1. School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China

    Qiang Pu

  2. School of Information Sciences, University of Pittsburgh, Pittsburgh, PA, USA

    Daqing He & Qi Li

Authors
  1. Qiang Pu
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  2. Daqing He
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  3. Qi Li
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Editor information

Editors and Affiliations

  1. Istituto di Scienza e Tecnologie dell’Informazione, CNR, Pisa, Italy

    Carol Peters

  2. RWTH Aachen University, Aachen, Germany

    Thomas Deselaers

  3. University of Padua, Padua, Italy

    Nicola Ferro

  4. LSI-UNED, Madrid, Spain

    Julio Gonzalo  & Anselmo Peñas  & 

  5. Dublin City University, Dublin 9, Ireland

    Gareth J. F. Jones

  6. Helsinki University of Technology, Espoo, Finland

    Mikko Kurimo

  7. University of Hildesheim, Hildesheim, Germany

    Thomas Mandl

  8. Humboldt University Berlin, Germany

    Vivien Petras

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Pu, Q., He, D., Li, Q. (2009). Query Expansion for Effective Geographic Information Retrieval. 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_110

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  • DOI: https://doi.org/10.1007/978-3-642-04447-2_110

  • 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)

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