Search (7 results, page 1 of 1)

  • × author_ss:"Robertson, S.E."
  1. Robertson, S.E.: ¬The probability ranking principle in IR (1977) 0.02
    0.01949679 = product of:
      0.03899358 = sum of:
        0.03899358 = product of:
          0.07798716 = sum of:
            0.07798716 = weight(_text_:p in 1935) [ClassicSimilarity], result of:
              0.07798716 = score(doc=1935,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.47670212 = fieldWeight in 1935, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1935)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willet. San Francisco: Morgan Kaufmann 1997. S.281-286.
  2. Beaulieu, M.M.; Gatford, M.; Huang, X.; Robertson, S.E.; Walker, S.; Williams, P.: Okapi an TREC-5 (1997) 0.02
    0.01949679 = product of:
      0.03899358 = sum of:
        0.03899358 = product of:
          0.07798716 = sum of:
            0.07798716 = weight(_text_:p in 3097) [ClassicSimilarity], result of:
              0.07798716 = score(doc=3097,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.47670212 = fieldWeight in 3097, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3097)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Robertson, S.E.: OKAPI at TREC (1994) 0.02
    0.016247325 = product of:
      0.03249465 = sum of:
        0.03249465 = product of:
          0.0649893 = sum of:
            0.0649893 = weight(_text_:p in 7952) [ClassicSimilarity], result of:
              0.0649893 = score(doc=7952,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.39725178 = fieldWeight in 7952, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.078125 = fieldNorm(doc=7952)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    p
  4. Robertson, S.E.: OKAPI at TREC-1 (1994) 0.02
    0.016247325 = product of:
      0.03249465 = sum of:
        0.03249465 = product of:
          0.0649893 = sum of:
            0.0649893 = weight(_text_:p in 7953) [ClassicSimilarity], result of:
              0.0649893 = score(doc=7953,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.39725178 = fieldWeight in 7953, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.078125 = fieldNorm(doc=7953)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    p
  5. Robertson, S.E.; Walker, S.: Some simple effective approximations to the 2-Poisson molde for probabilisitc weighted retrieval (1979) 0.02
    0.016247325 = product of:
      0.03249465 = sum of:
        0.03249465 = product of:
          0.0649893 = sum of:
            0.0649893 = weight(_text_:p in 1940) [ClassicSimilarity], result of:
              0.0649893 = score(doc=1940,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.39725178 = fieldWeight in 1940, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1940)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.345-453.
  6. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01
    0.012329352 = product of:
      0.024658704 = sum of:
        0.024658704 = product of:
          0.04931741 = sum of:
            0.04931741 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
              0.04931741 = score(doc=5108,freq=2.0), product of:
                0.15933464 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045500398 = queryNorm
                0.30952093 = fieldWeight in 5108, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5108)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    20. 1.2007 18:30:22
  7. Robertson, S.E.: OKAPI at TREC-3 (1995) 0.01
    0.011373127 = product of:
      0.022746254 = sum of:
        0.022746254 = product of:
          0.045492508 = sum of:
            0.045492508 = weight(_text_:p in 5694) [ClassicSimilarity], result of:
              0.045492508 = score(doc=5694,freq=2.0), product of:
                0.16359726 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.045500398 = queryNorm
                0.27807623 = fieldWeight in 5694, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5694)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    p