Search (2 results, page 1 of 1)

  • × year_i:[1980 TO 1990}
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02 
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    Date
    30. 3.2001 13:32:22
    Type
    a
  2. Robertson, S.E.: On relevance weight estimation and query expansion (1986) 0.00 
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    Abstract
    A Bayesian argument is used to suggest modifications to the Robertson/Sparck Jones relevance weighting formula, to accomodate the addition to the query of terms taken from the relevant documents identified during the search
    Type
    a

Authors