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Ranking expansion terms using partial and ostensive evidence

Ruthven, Ian and Lalmas, Mounia and van Rijsbergen, Keith (2002) Ranking expansion terms using partial and ostensive evidence. In: 4th International Conference on Conceptions of Library and Information Science. CoLIS 4, 2002-07-21 - 2002-07-25, Seattle, USA.

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    Abstract

    In this paper we examine the problem of ranking candidate expansion terms for query expansion. We show, by an extension to the traditional F4 scheme, how partial relevance assessments (how relevant a document is) and ostensive evidence (when a document was assessed relevant) can be incorporated into a term ranking function. We then investigate this new term ranking function in three user experiments, examining the performance of our function for automatic and interactive query expansion. We show that the new function not only suggests terms that are preferred by searchers but suggests terms that can lead to more use of expansion terms.

    Item type: Conference or Workshop Item (Paper)
    ID code: 2462
    Keywords: expansion terms, query expansion, information retrieval, search algorithms, Electronic computers. Computer science
    Subjects: Science > Mathematics > Electronic computers. Computer science
    Department: Faculty of Science > Computer and Information Sciences
    Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 23 Jan 2007
    Last modified: 20 Jul 2013 21:52
    URI: http://strathprints.strath.ac.uk/id/eprint/2462

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