Search (7 results, page 1 of 1)

  • × year_i:[1970 TO 1980}
  • × author_ss:"Robertson, S.E."
  1. Robertson, S.E.: ¬The probability ranking principle in IR (1977) 0.06 
    0.05576241 = product of:
  0.11152482 = sum of:
    0.0090247495 = weight(_text_:e in 1935) [ClassicSimilarity], result of:
      0.0090247495 = score(doc=1935,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.19057012 = fieldWeight in 1935, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.09375 = fieldNorm(doc=1935)
    0.046835296 = weight(_text_:u in 1935) [ClassicSimilarity], result of:
      0.046835296 = score(doc=1935,freq=2.0), product of:
        0.107882105 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03294669 = queryNorm
        0.43413407 = fieldWeight in 1935, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.09375 = fieldNorm(doc=1935)
    0.055664778 = weight(_text_:k in 1935) [ClassicSimilarity], result of:
      0.055664778 = score(doc=1935,freq=2.0), product of:
        0.11761237 = queryWeight, product of:
          3.569778 = idf(docFreq=3384, maxDocs=44218)
          0.03294669 = queryNorm
        0.47329018 = fieldWeight in 1935, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.569778 = idf(docFreq=3384, maxDocs=44218)
          0.09375 = fieldNorm(doc=1935)
  0.5 = coord(3/6)
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willet. San Francisco: Morgan Kaufmann 1997. S.281-286.
    Language
    e
  2. Robertson, S.E.; Walker, S.: Some simple effective approximations to the 2-Poisson molde for probabilisitc weighted retrieval (1979) 0.05 
    0.046468675 = product of:
  0.09293735 = sum of:
    0.007520625 = weight(_text_:e in 1940) [ClassicSimilarity], result of:
      0.007520625 = score(doc=1940,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.15880844 = fieldWeight in 1940, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.078125 = fieldNorm(doc=1940)
    0.039029416 = weight(_text_:u in 1940) [ClassicSimilarity], result of:
      0.039029416 = score(doc=1940,freq=2.0), product of:
        0.107882105 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03294669 = queryNorm
        0.3617784 = fieldWeight in 1940, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=1940)
    0.046387315 = weight(_text_:k in 1940) [ClassicSimilarity], result of:
      0.046387315 = score(doc=1940,freq=2.0), product of:
        0.11761237 = queryWeight, product of:
          3.569778 = idf(docFreq=3384, maxDocs=44218)
          0.03294669 = queryNorm
        0.39440846 = fieldWeight in 1940, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.569778 = idf(docFreq=3384, maxDocs=44218)
          0.078125 = fieldNorm(doc=1940)
  0.5 = coord(3/6)
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.345-453.
    Language
    e
  3. Robertson, S.E.; Sparck Jones, K.: Relevance weighting of search terms (1976) 0.01 
    0.014375451 = product of:
  0.043126352 = sum of:
    0.0060165 = weight(_text_:e in 71) [ClassicSimilarity], result of:
      0.0060165 = score(doc=71,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.12704675 = fieldWeight in 71, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.0625 = fieldNorm(doc=71)
    0.03710985 = weight(_text_:k in 71) [ClassicSimilarity], result of:
      0.03710985 = score(doc=71,freq=2.0), product of:
        0.11761237 = queryWeight, product of:
          3.569778 = idf(docFreq=3384, maxDocs=44218)
          0.03294669 = queryNorm
        0.31552678 = fieldWeight in 71, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.569778 = idf(docFreq=3384, maxDocs=44218)
          0.0625 = fieldNorm(doc=71)
  0.33333334 = coord(2/6)
    Language
    e
  4. Robertson, S.E.: Indexing theory and retrieval effectiveness (1979) 0.00 
    0.002506875 = product of:
  0.01504125 = sum of:
    0.01504125 = weight(_text_:e in 5175) [ClassicSimilarity], result of:
      0.01504125 = score(doc=5175,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.31761688 = fieldWeight in 5175, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.15625 = fieldNorm(doc=5175)
  0.16666667 = coord(1/6)
    Language
    e
  5. Robertson, S.E.; Belkin, N.J.: Ranking in principle (1978) 0.00 
    0.0020055 = product of:
  0.012033 = sum of:
    0.012033 = weight(_text_:e in 1143) [ClassicSimilarity], result of:
      0.012033 = score(doc=1143,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.2540935 = fieldWeight in 1143, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.125 = fieldNorm(doc=1143)
  0.16666667 = coord(1/6)
    Language
    e
  6. Robertson, S.E.: ¬The probabilistic character of relevance (1977) 0.00 
    0.0020055 = product of:
  0.012033 = sum of:
    0.012033 = weight(_text_:e in 7399) [ClassicSimilarity], result of:
      0.012033 = score(doc=7399,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.2540935 = fieldWeight in 7399, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.125 = fieldNorm(doc=7399)
  0.16666667 = coord(1/6)
    Language
    e
  7. Robertson, S.E.: Theories and models in information retrieval (1977) 0.00 
    0.00100275 = product of:
  0.0060165 = sum of:
    0.0060165 = weight(_text_:e in 1844) [ClassicSimilarity], result of:
      0.0060165 = score(doc=1844,freq=2.0), product of:
        0.047356583 = queryWeight, product of:
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.03294669 = queryNorm
        0.12704675 = fieldWeight in 1844, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.43737 = idf(docFreq=28552, maxDocs=44218)
          0.0625 = fieldNorm(doc=1844)
  0.16666667 = coord(1/6)
    Language
    e

Authors

Themes