Search (2 results, page 1 of 1)

  • × author_ss:"Robertson, S.E."
  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[1970 TO 1980}
  1. Robertson, S.E.: ¬The probability ranking principle in IR (1977) 0.00 
    0.0033795037 = product of:
  0.020277021 = sum of:
    0.020277021 = weight(_text_:in in 1935) [ClassicSimilarity], result of:
      0.020277021 = score(doc=1935,freq=6.0), product of:
        0.06491381 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.04772181 = queryNorm
        0.3123684 = fieldWeight in 1935, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.09375 = fieldNorm(doc=1935)
  0.16666667 = coord(1/6)
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willet. San Francisco: Morgan Kaufmann 1997. S.281-286.
  2. Robertson, S.E.; Belkin, N.J.: Ranking in principle (1978) 0.00 
    0.002601543 = product of:
  0.015609258 = sum of:
    0.015609258 = weight(_text_:in in 1143) [ClassicSimilarity], result of:
      0.015609258 = score(doc=1143,freq=2.0), product of:
        0.06491381 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.04772181 = queryNorm
        0.24046129 = fieldWeight in 1143, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.125 = fieldNorm(doc=1143)
  0.16666667 = coord(1/6)