Using a Medical Thesaurus to Predict Query Difficulty

  • Florian Boudin
  • Jian-Yun Nie
  • Martin Dawes
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7224)


Estimating query performance is the task of predicting the quality of results returned by a search engine in response to a query. In this paper, we focus on pre-retrieval prediction methods for the medical domain. We propose a novel predictor that exploits a thesaurus to ascertain how difficult queries are. In our experiments, we show that our predictor outperforms the state-of-the-art methods that do not use a thesaurus.


Retrieval Model Query Term Mean Average Precision Query Performance Medical Domain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Florian Boudin
    • 1
  • Jian-Yun Nie
    • 2
  • Martin Dawes
    • 3
  1. 1.Université de NantesFrance
  2. 2.Université de MontréalCanada
  3. 3.University of British ColumbiaCanada

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