Back to Basics – Again – for Domain-Specific Retrieval

  • Ray R. Larson
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5706)


In this paper we will describe Berkeley’s approach to the Domain-Specific (DS) track for CLEF 2008. Last year we used Entry Vocabulary Indexes and Thesaurus expansion approaches for DS, but found in later testing that some simple text retrieval approaches had better results than these more complex query expansion approaches. This year we decided to revisit our basic text retrieval approaches and see how they would stack up against the various expansion approaches used by other groups. The results are now in and the answer is clear, they perform pretty badly compared to other groups’ approaches.

All of the runs submitted were performed using the Cheshire II system. This year the Berkeley/Cheshire group submitted a total of twenty-four runs, including two for each subtask of the DS track. These include six Monolingual runs for English, German, and Russian, twelve Bilingual runs (four X2EN, four X2DE, and four X2RU), and six Multilingual runs (two EN, two DE, and two RU). The overall results include Cheshire runs in the top five participants for each task, but usually as the lowest of the five (and often fewer) groups.


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  1. 1.
    Gey, F., Buckland, M., Chen, A., Larson, R.: Entry vocabulary - a technology to enhance digital search. In: Proceedings of HLT 2001, First International Conference on Human Language Technology, San Diego, March 2001, pp. 91–95 (2001)Google Scholar
  2. 2.
    Larson, R.R.: Domain specific retrieval: Back to basics. 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, pp. 174–177. Springer, Heidelberg (2007)CrossRefGoogle Scholar
  3. 3.
    Larson, R.R.: Back to basics - again - for domain specific retrieval: CLEF working notes (2008),
  4. 4.
    Petras, V., Gey, F., Larson, R.: Domain-specific CLIR of english, german and russian using fusion and subject metadata for query expansion. In: Peters, C., Gey, F.C., Gonzalo, J., Müller, H., Jones, G.J.F., Kluck, M., Magnini, B., de Rijke, M., Giampiccolo, D. (eds.) CLEF 2005. LNCS, vol. 4022, pp. 226–237. Springer, Heidelberg (2006)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Ray R. Larson
    • 1
  1. 1.School of InformationUniversity of CaliforniaBerkeleyUSA

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