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    SIGIR
    2003
    ACM
    175views Information Technology» more  SIGIR 2003»
    Beyond independent relevance: methods and evaluation metrics for subtopic retrieval
    13 years 10 months ago
    Beyond independent relevance: methods and evaluation metrics for subtopic retrieval
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    We present a non-traditional retrieval problem we call subtopic retrieval. The subtopic retrieval problem is concerned with finding documents that cover many different subtopics ...
    ChengXiang Zhai, William W. Cohen, John D. Laffert...
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    SIGIR
    2002
    ACM
    124views Information Technology» more  SIGIR 2002»
    Risk minimization and language modeling in text retrieval dissertation abstract
    13 years 4 months ago
    Risk minimization and language modeling in text retrieval dissertation abstract
    Download  www.sigir.org
    tion Abstract ChengXiang Zhai (Advisor: John Lafferty) Language Technologies Institute School of Computer Science Carnegie Mellon University With the dramatic increase in online in...
    ChengXiang Zhai
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