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  • × author_ss:"Robertson, S.E."
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × year_i:[1980 TO 1990}
  1. Robertson, S.E.: On relevance weight estimation and query expansion (1986) 0.03
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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
    Source
    Journal of documentation. 42(1986), S.182-188
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval