Overview of the INEX 2009 efficiency track

  • Authors:

  • Ralf Schenkel;Martin Theobald

  • Affiliations:

  • Saarland University, Saarbrücken, Germany and Max Planck Institute for Informatics, Saarbrücken, Germany;Max Planck Institute for Informatics, Saarbrücken, Germany

  • Venue:
  • INEX'09 Proceedings of the Focused retrieval and evaluation, and 8th international conference on Initiative for the evaluation of XML retrieval
  • Year:
  • 2009

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Abstract

This paper presents an overview of the Efficiency Track that was run for the second time in 2009. This track is intended to provide a common forum for the evaluation of both the effectiveness and efficiency of XML ranked retrieval approaches on real data and real queries. The Efficiency Track significantly extends the Ad-Hoc Track by systematically investigating different types of queries and retrieval scenarios, such as classic ad-hoc search, high-dimensional query expansion settings, and queries with a deeply nested structure (with all topics being available in both the NEXI-style CO and CAS formulations, as well as in their XPath 2.0 Full-Text counterparts). The track received 68 runs submitted by 4 participating groups using 5 different systems. The best systems achieved interactive retrieval times for ad-hoc search, with a result quality comparable to the best runs in the AdHoc track.