A query performance analysis for result diversification

  • Authors:
  • Jiyin He;Marc Bron;Maarten De Rijke

  • Affiliations:
  • CWI, Amsterdam;ISLA, University of Amsterdam, Amsterdam;ISLA, University of Amsterdam, Amsterdam

  • Venue:
  • ICTIR'11 Proceedings of the Third international conference on Advances in information retrieval theory
  • Year:
  • 2011

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Abstract

Which queries stand to gain or loose from diversifying their results? Some queries are more difficult than others for diversification. Across a number of conceptually different diversification methods, performance on such queries tends to deteriorate after applying these diversification methods, even though their initial performance in terms of relevance or diversity tends to be good.