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NEXI, Now and Next

  • Conference paper
Advances in XML Information Retrieval (INEX 2004)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 3493))

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Abstract

NEXI was introduced in INEX 2004 as a query language for specifying structured and unstructured queries on XML documents. A language expressive enough for INEX yet simple enough for users to get right. These goals have been achieved. In particular, the error rate in CAS queries has dropped from 63% in 2003 to 12% in 2004. This drop is shown to be a consequence of not only the language, but the tools introduced with it: the source code for a parser was downloaded by 13 IP addresses, while a web implementation was accessed 635 times from 71 addresses.

Although NEXI is suitable for the adhoc track, it is not sufficiently expressive enough for the heterogeneous track, or for question answering. The syntax necessary to extend to these purposes is proposed. This includes weighted terms and weighted paths. The new syntax is strictly an extension so does not invalidate any existing queries.

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Author information

Authors and Affiliations

  1. Department of Computer Science, University of Otago, Dunedin, New Zealand

    Andrew Trotman

  2. Informatics Institute, University of Amsterdam, Amsterdam, The Netherlands

    Börkur Sigurbjörnsson

Authors
  1. Andrew Trotman
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  2. Börkur Sigurbjörnsson
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Editor information

Editors and Affiliations

  1. University of Duisburg-Essen, Duisburg, Germany

    Norbert Fuhr

  2. Queen Mary, University of London, London, UK

    Mounia Lalmas

  3. University Duisburg-Essen, Germany

    Saadia Malik

  4. Computer and Automation Research Institute, Hungarian Academy of Sciences, Kende u. 13-17, H-1111, Budapest, Hungary

    Zoltán Szlávik

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© 2005 Springer-Verlag Berlin Heidelberg

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Trotman, A., Sigurbjörnsson, B. (2005). NEXI, Now and Next. In: Fuhr, N., Lalmas, M., Malik, S., Szlávik, Z. (eds) Advances in XML Information Retrieval. INEX 2004. Lecture Notes in Computer Science, vol 3493. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11424550_3

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  • DOI: https://doi.org/10.1007/11424550_3

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-26166-7

  • Online ISBN: 978-3-540-32053-1

  • eBook Packages: Computer ScienceComputer Science (R0)

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