Overview of the INEX 2007 Ad Hoc Track

  • Authors:

  • Norbert Fuhr;Jaap Kamps;Mounia Lalmas;Saadia Malik;Andrew Trotman

  • Affiliations:

  • University of Duisburg-Essen, Duisburg, Germany;University of Amsterdam, Amsterdam, The Netherlands;Queen Mary, University of London, London, UK;University of Duisburg-Essen, Duisburg, Germany;University of Otago, Dunedin, New Zealand

  • Venue:
  • Focused Access to XML Documents
  • Year:
  • 2008

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Abstract

This paper gives an overview of the INEX 2007 Ad Hoc Track. The main purpose of the Ad Hoc Track was to investigate the value of the internal document structure (as provided by the XML mark-up) for retrieving relevant information. For this reason, the retrieval results were liberalized to arbitrary passages and measures were chosen to fairly compare systems retrieving elements, ranges of elements, and arbitrary passages. The INEX 2007 Ad Hoc Track featured three tasks: For the Focused Taska ranked-list of non-overlapping results (elements or passages) was needed. For the Relevant in Context Tasknon-overlapping results (elements or passages) were returned grouped by the article from which they came. For the Best in Context Taska single starting point (element start tag or passage start) for each article was needed. We discuss the results for the three tasks, examine the relative effectiveness of element and passage retrieval. This is examined in the context of content only (CO, or Keyword) search as well as content and structure (CAS, or structured) search.