Search (1 results, page 1 of 1)

  • × 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) 0.00 
    0.0016259644 = product of:
  0.0097557865 = sum of:
    0.0097557865 = weight(_text_:in in 3875) [ClassicSimilarity], result of:
      0.0097557865 = score(doc=3875,freq=2.0), product of:
        0.06491381 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.04772181 = queryNorm
        0.15028831 = fieldWeight in 3875, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.078125 = fieldNorm(doc=3875)
  0.16666667 = coord(1/6)
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval