Abstract
We report on the experiments undertaken by the NICTA I2D2 Group as part of GeoCLEF 2006, as well as post-GeoCLEF evaluations and improvements to the submitted system. In particular, we used techniques to assign probabilistic likelihoods to geographic candidates for each identified geo-term, and a probabilistic IR engine. A normalisation process that adjusts term weights, so as to prevent expanded geo-terms from overwhelming non-geo terms, is shown to be crucial.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Zettair: The Zettair search engine, http://www.seg.rmit.edu.au/zettair/index.php
Gey, F., Petras, V.: Berkeley2 at GeoCLEF: Cross-language geographic information retrieval of German and English documents. In: GeoCLEF 2005 Working Notes, Vienna (2005), http://www.clef-campaign.org/2005/working_notes/
Walker, S., Robertson, S., Boughanem, M., Jones, G., Sparck Jones, K.: Okapi at TREC-6: Automatic ad hoc, VLC, routing, filtering and QSDR. In: Proc. Sixth Text Retrieval Conference (TREC 6), Gaithersburg, Maryland (November 1997)
Li, Y., Moffat, A., Stokes, N., Cavedon, L.: Exploring probabilistic toponym resolution for geographical information retrieval. In: SIGIR Workshop on Geographical Information Retrieval, Seattle (2006)
Stokes, N., Li, Y., Moffat, A., Rong, J.: An empirical study of the effects of NLP components on geographic IR performance. International Journal of Geographical Information Science, special issue on Geographical Information Retrieval
Leveling, J., Hartrumpf, S.: On metonymy recognition for geographic ir. In: SIGIR Workshop on Geographical Information Retrieval, Seattle (2006)
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2007 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Li, Y., Stokes, N., Cavedon, L., Moffat, A. (2007). NICTA I2D2 Group at GeoCLEF 2006. In: Peters, C., et al. Evaluation of Multilingual and Multi-modal Information Retrieval. CLEF 2006. Lecture Notes in Computer Science, vol 4730. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74999-8_120
Download citation
DOI: https://doi.org/10.1007/978-3-540-74999-8_120
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-74998-1
Online ISBN: 978-3-540-74999-8
eBook Packages: Computer ScienceComputer Science (R0)