On Upper Bounds for Dynamic Pruning

  • Craig Macdonald
  • Nicola Tonellotto
  • Iadh Ounis
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6931)


Dynamic pruning strategies enhance the efficiency of search engines, by making use of term upper bounds to decide when a document will not make the final set of k retrieved documents. After discussing different approaches for obtaining term upper bounds, we propose the use of multiple least upper bounds. Experiments are conducted on the TREC ClueWeb09 corpus, to measure the accuracy of different upper bounds.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Craig Macdonald
    • 1
  • Nicola Tonellotto
    • 2
  • Iadh Ounis
    • 1
  1. 1.School of Computing ScienceUniversity of GlasgowGlasgowUK
  2. 2.Information Science and Technologies InstituteCNRPisaItaly

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