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    CLIR Experiments at Maryland for TREC-2002: Evidence combination for Arabic-English retrieval

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    CS-TR-4456.pdf (82.91Kb)
    No. of downloads: 639

    Date
    2003-04-04
    Author
    Darwish, Kareem
    Oard, Douglas W.
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    Abstract
    The focus of the experiments reported in this paper was techniques for combining evidence for cross-language retrieval, searching Arabic documents using English queries. Evidence from multiple sources of translation knowledge was combined to estimate translation probabilities, and four techniques for estimating query-language term weights from document-language evidence were tried. A new technique that exploits translation probability information was found to outperform a comparable technique in which that information was not used. Comparative results for three variants of Arabic ^\light^] stemming are also presented. A simple variant of an existing stemming algorithm was found to result in significantly better retrieval effectiveness. UMIACS-TR-2003-26 LAMP-TR-101
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    http://hdl.handle.net/1903/1268
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