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  • × author_ss:"Liu, X."
  • × author_ss:"Croft, W.B."
  1. Liu, X.; Croft, W.B.: Cluster-based retrieval using language models (2004) 0.04 
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    Year
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  2. Liu, X.; Croft, W.B.: Statistical language modeling for information retrieval (2004) 0.02 
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