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  • × author_ss:"Liu, X."
  • × author_ss:"Croft, W.B."
  • × type_ss:"a"
  1. Liu, X.; Croft, W.B.: Cluster-based retrieval using language models (2004) 1.00 
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  2. Liu, X.; Croft, W.B.: Statistical language modeling for information retrieval (2004) 1.00 
    1.0 = *:*, product of:
  1.0 = boost
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