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    2008
    ACM
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    Selecting good expansion terms for pseudo-relevance feedback
    13 years 4 months ago
    Selecting good expansion terms for pseudo-relevance feedback
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    Pseudo-relevance feedback assumes that most frequent terms in the pseudo-feedback documents are useful for the retrieval. In this study, we re-examine this assumption and show tha...
    Guihong Cao, Jian-Yun Nie, Jianfeng Gao, Stephen R...
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