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  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992) 8.09 
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    Author
    Willett, P.
  2. Robertson, A.M.; Willett, P.: Applications of n-grams in textual information systems (1998) 8.09 
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    Willett, P.

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