Boosting static pruning of inverted files

  • Authors:
  • Roi Blanco;Alvaro Barreiro

  • Affiliations:
  • University of A Coruña, A Coruña, Spain;University of A Coruña, A Coruña, Spain

  • Venue:
  • SIGIR '07 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
  • Year:
  • 2007

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Abstract

This paper revisits the static term-based pruning technique presented in Carmel et al., SIGIR 2001 for ad-hoc retrieval, addressing different issues concerning its algorithmic design not yet taken into account. Although the original technique is able to retain precision when a considerable part of the inverted file is removed, we show that it is possible to improve precision in some scenarios if some key design features are properly selected.