Search (36 results, page 1 of 2)

  • × author_ss:"Robertson, S.E."
  1. Robertson, S.E.: ¬The probability ranking principle in IR (1977) 0.06
    0.056147847 = product of:
      0.09825873 = sum of:
        0.03063406 = product of:
          0.06126812 = sum of:
            0.06126812 = weight(_text_:k in 1935) [ClassicSimilarity], result of:
              0.06126812 = score(doc=1935,freq=2.0), product of:
                0.1294515 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03626318 = 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(1/2)
        0.008037409 = weight(_text_:s in 1935) [ClassicSimilarity], result of:
          0.008037409 = score(doc=1935,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 1935, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1935)
        0.05154984 = weight(_text_:u in 1935) [ClassicSimilarity], result of:
          0.05154984 = score(doc=1935,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = 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)
        0.008037409 = weight(_text_:s in 1935) [ClassicSimilarity], result of:
          0.008037409 = score(doc=1935,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 1935, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1935)
      0.5714286 = coord(4/7)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willet. San Francisco: Morgan Kaufmann 1997. S.281-286.
    Source
    Journal of documentation. 33(1977), S.294-304
  2. Robertson, S.E.; Walker, S.: Some simple effective approximations to the 2-Poisson molde for probabilisitc weighted retrieval (1979) 0.05
    0.04851022 = product of:
      0.084892884 = sum of:
        0.025528383 = product of:
          0.051056765 = sum of:
            0.051056765 = weight(_text_:k in 1940) [ClassicSimilarity], result of:
              0.051056765 = score(doc=1940,freq=2.0), product of:
                0.1294515 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03626318 = 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(1/2)
        0.008203147 = weight(_text_:s in 1940) [ClassicSimilarity], result of:
          0.008203147 = score(doc=1940,freq=6.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20806074 = fieldWeight in 1940, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=1940)
        0.042958204 = weight(_text_:u in 1940) [ClassicSimilarity], result of:
          0.042958204 = score(doc=1940,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = 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)
        0.008203147 = weight(_text_:s in 1940) [ClassicSimilarity], result of:
          0.008203147 = score(doc=1940,freq=6.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20806074 = fieldWeight in 1940, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=1940)
      0.5714286 = coord(4/7)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.345-453.
    Source
    Journal of documentation. 35(1979), S.285-295 (???)
  3. Beaulieu, M.M.; Gatford, M.; Huang, X.; Robertson, S.E.; Walker, S.; Williams, P.: Okapi an TREC-5 (1997) 0.03
    0.028981997 = product of:
      0.06762466 = sum of:
        0.008037409 = weight(_text_:s in 3097) [ClassicSimilarity], result of:
          0.008037409 = score(doc=3097,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 3097, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=3097)
        0.05154984 = weight(_text_:u in 3097) [ClassicSimilarity], result of:
          0.05154984 = score(doc=3097,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = queryNorm
            0.43413407 = fieldWeight in 3097, 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=3097)
        0.008037409 = weight(_text_:s in 3097) [ClassicSimilarity], result of:
          0.008037409 = score(doc=3097,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 3097, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=3097)
      0.42857143 = coord(3/7)
    
    Pages
    S.143-165
    Source
    The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
  4. Robertson, S.E.: Some recent theories and models in information retrieval (1980) 0.03
    0.026964193 = product of:
      0.06291645 = sum of:
        0.005683306 = weight(_text_:s in 1326) [ClassicSimilarity], result of:
          0.005683306 = score(doc=1326,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.14414869 = fieldWeight in 1326, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1326)
        0.05154984 = weight(_text_:u in 1326) [ClassicSimilarity], result of:
          0.05154984 = score(doc=1326,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = queryNorm
            0.43413407 = fieldWeight in 1326, 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=1326)
        0.005683306 = weight(_text_:s in 1326) [ClassicSimilarity], result of:
          0.005683306 = score(doc=1326,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.14414869 = fieldWeight in 1326, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1326)
      0.42857143 = coord(3/7)
    
    Pages
    S.131-136
    Source
    Theory and application of information research. Proc. of the 2nd Int. Research Forum on Information Science, 3.-6.8.1977, Copenhagen. Ed.: O. Harbo u. L. Kajberg
  5. Robertson, S.E.: ¬The methodology of information retrieval experiment (1981) 0.02
    0.024000384 = product of:
      0.056000896 = sum of:
        0.040845416 = product of:
          0.08169083 = sum of:
            0.08169083 = weight(_text_:k in 3146) [ClassicSimilarity], result of:
              0.08169083 = score(doc=3146,freq=2.0), product of:
                0.1294515 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03626318 = queryNorm
                0.63105357 = fieldWeight in 3146, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.125 = fieldNorm(doc=3146)
          0.5 = coord(1/2)
        0.0075777415 = weight(_text_:s in 3146) [ClassicSimilarity], result of:
          0.0075777415 = score(doc=3146,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.19219826 = fieldWeight in 3146, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=3146)
        0.0075777415 = weight(_text_:s in 3146) [ClassicSimilarity], result of:
          0.0075777415 = score(doc=3146,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.19219826 = fieldWeight in 3146, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=3146)
      0.42857143 = coord(3/7)
    
    Pages
    S.9-31
    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
  6. Robertson, S.E.: On relevance weight estimation and query expansion (1986) 0.02
    0.022470163 = product of:
      0.05243038 = sum of:
        0.0047360887 = weight(_text_:s in 3875) [ClassicSimilarity], result of:
          0.0047360887 = score(doc=3875,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.120123915 = fieldWeight in 3875, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=3875)
        0.042958204 = weight(_text_:u in 3875) [ClassicSimilarity], result of:
          0.042958204 = score(doc=3875,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = queryNorm
            0.3617784 = fieldWeight in 3875, 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=3875)
        0.0047360887 = weight(_text_:s in 3875) [ClassicSimilarity], result of:
          0.0047360887 = score(doc=3875,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.120123915 = fieldWeight in 3875, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=3875)
      0.42857143 = coord(3/7)
    
    Source
    Journal of documentation. 42(1986), S.182-188
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  7. Sparck Jones, K.; Walker, S.; Robertson, S.E.: ¬A probabilistic model of information retrieval : development and comparative experiments - part 1 (2000) 0.02
    0.020018093 = product of:
      0.04670888 = sum of:
        0.03063406 = product of:
          0.06126812 = sum of:
            0.06126812 = weight(_text_:k in 4181) [ClassicSimilarity], result of:
              0.06126812 = score(doc=4181,freq=2.0), product of:
                0.1294515 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03626318 = queryNorm
                0.47329018 = fieldWeight in 4181, 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=4181)
          0.5 = coord(1/2)
        0.008037409 = weight(_text_:s in 4181) [ClassicSimilarity], result of:
          0.008037409 = score(doc=4181,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 4181, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=4181)
        0.008037409 = weight(_text_:s in 4181) [ClassicSimilarity], result of:
          0.008037409 = score(doc=4181,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 4181, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=4181)
      0.42857143 = coord(3/7)
    
    Source
    Information processing and management. 36(2000) no.6, S.779-808
  8. Sparck Jones, K.; Walker, S.; Robertson, S.E.: ¬A probabilistic model of information retrieval : development and comparative experiments - part 2 (2000) 0.02
    0.020018093 = product of:
      0.04670888 = sum of:
        0.03063406 = product of:
          0.06126812 = sum of:
            0.06126812 = weight(_text_:k in 4286) [ClassicSimilarity], result of:
              0.06126812 = score(doc=4286,freq=2.0), product of:
                0.1294515 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03626318 = queryNorm
                0.47329018 = fieldWeight in 4286, 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=4286)
          0.5 = coord(1/2)
        0.008037409 = weight(_text_:s in 4286) [ClassicSimilarity], result of:
          0.008037409 = score(doc=4286,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 4286, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=4286)
        0.008037409 = weight(_text_:s in 4286) [ClassicSimilarity], result of:
          0.008037409 = score(doc=4286,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 4286, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=4286)
      0.42857143 = coord(3/7)
    
    Source
    Information processing and management. 36(2000) no.6, S.809-840
  9. Robertson, S.E.; Walker, S.; Beaulieu, M.M.; Gatford, M.; Payne, A.: Okapi at TREC-4 (1996) 0.02
    0.020018093 = product of:
      0.04670888 = sum of:
        0.03063406 = product of:
          0.06126812 = sum of:
            0.06126812 = weight(_text_:k in 7546) [ClassicSimilarity], result of:
              0.06126812 = score(doc=7546,freq=2.0), product of:
                0.1294515 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03626318 = queryNorm
                0.47329018 = fieldWeight in 7546, 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=7546)
          0.5 = coord(1/2)
        0.008037409 = weight(_text_:s in 7546) [ClassicSimilarity], result of:
          0.008037409 = score(doc=7546,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 7546, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=7546)
        0.008037409 = weight(_text_:s in 7546) [ClassicSimilarity], result of:
          0.008037409 = score(doc=7546,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 7546, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=7546)
      0.42857143 = coord(3/7)
    
    Pages
    S.73-96
    Source
    The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
  10. Robertson, S.E.: On term selection for query expansion (1990) 0.02
    0.01797613 = product of:
      0.041944303 = sum of:
        0.0037888708 = weight(_text_:s in 2650) [ClassicSimilarity], result of:
          0.0037888708 = score(doc=2650,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.09609913 = fieldWeight in 2650, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=2650)
        0.034366563 = weight(_text_:u in 2650) [ClassicSimilarity], result of:
          0.034366563 = score(doc=2650,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = queryNorm
            0.28942272 = fieldWeight in 2650, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.0625 = fieldNorm(doc=2650)
        0.0037888708 = weight(_text_:s in 2650) [ClassicSimilarity], result of:
          0.0037888708 = score(doc=2650,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.09609913 = fieldWeight in 2650, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=2650)
      0.42857143 = coord(3/7)
    
    Source
    Journal of documentation. 46(1990) no.4, S.359-364
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  11. Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995) 0.02
    0.016906166 = product of:
      0.03944772 = sum of:
        0.004688489 = weight(_text_:s in 6964) [ClassicSimilarity], result of:
          0.004688489 = score(doc=6964,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.118916616 = fieldWeight in 6964, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6964)
        0.030070743 = weight(_text_:u in 6964) [ClassicSimilarity], result of:
          0.030070743 = score(doc=6964,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = queryNorm
            0.25324488 = fieldWeight in 6964, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6964)
        0.004688489 = weight(_text_:s in 6964) [ClassicSimilarity], result of:
          0.004688489 = score(doc=6964,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.118916616 = fieldWeight in 6964, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6964)
      0.42857143 = coord(3/7)
    
    Source
    Information processing and management. 31(1995) no.3, S.345-360
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  12. Robertson, S.E.: OKAPI at TREC-3 (1995) 0.02
    0.015729114 = product of:
      0.036701266 = sum of:
        0.003315262 = weight(_text_:s in 5694) [ClassicSimilarity], result of:
          0.003315262 = score(doc=5694,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.08408674 = fieldWeight in 5694, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5694)
        0.030070743 = weight(_text_:u in 5694) [ClassicSimilarity], result of:
          0.030070743 = score(doc=5694,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = queryNorm
            0.25324488 = fieldWeight in 5694, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5694)
        0.003315262 = weight(_text_:s in 5694) [ClassicSimilarity], result of:
          0.003315262 = score(doc=5694,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.08408674 = fieldWeight in 5694, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5694)
      0.42857143 = coord(3/7)
    
    Pages
    27 S
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  13. Vechtomova, O.; Robertson, S.E.: ¬A domain-independent approach to finding related entities (2012) 0.01
    0.013482097 = product of:
      0.031458225 = sum of:
        0.002841653 = weight(_text_:s in 2733) [ClassicSimilarity], result of:
          0.002841653 = score(doc=2733,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.072074346 = fieldWeight in 2733, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046875 = fieldNorm(doc=2733)
        0.02577492 = weight(_text_:u in 2733) [ClassicSimilarity], result of:
          0.02577492 = score(doc=2733,freq=2.0), product of:
            0.11874176 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03626318 = queryNorm
            0.21706703 = fieldWeight in 2733, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.046875 = fieldNorm(doc=2733)
        0.002841653 = weight(_text_:s in 2733) [ClassicSimilarity], result of:
          0.002841653 = score(doc=2733,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.072074346 = fieldWeight in 2733, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046875 = fieldNorm(doc=2733)
      0.42857143 = coord(3/7)
    
    Source
    Information processing and management. 48(2012) no.4, S.654-670
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  14. Robertson, S.E.; Sparck Jones, K.: Relevance weighting of search terms (1976) 0.01
    0.012000192 = product of:
      0.028000448 = sum of:
        0.020422708 = product of:
          0.040845416 = sum of:
            0.040845416 = weight(_text_:k in 71) [ClassicSimilarity], result of:
              0.040845416 = score(doc=71,freq=2.0), product of:
                0.1294515 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.03626318 = 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)
          0.5 = coord(1/2)
        0.0037888708 = weight(_text_:s in 71) [ClassicSimilarity], result of:
          0.0037888708 = score(doc=71,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.09609913 = fieldWeight in 71, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=71)
        0.0037888708 = weight(_text_:s in 71) [ClassicSimilarity], result of:
          0.0037888708 = score(doc=71,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.09609913 = fieldWeight in 71, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=71)
      0.42857143 = coord(3/7)
    
    Source
    Journal of the American Society for Information Science. 27(1976), S.129-146
  15. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01
    0.011670164 = product of:
      0.027230382 = sum of:
        0.0037888708 = weight(_text_:s in 5108) [ClassicSimilarity], result of:
          0.0037888708 = score(doc=5108,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.09609913 = fieldWeight in 5108, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=5108)
        0.0037888708 = weight(_text_:s in 5108) [ClassicSimilarity], result of:
          0.0037888708 = score(doc=5108,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.09609913 = fieldWeight in 5108, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=5108)
        0.01965264 = product of:
          0.03930528 = sum of:
            0.03930528 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
              0.03930528 = score(doc=5108,freq=2.0), product of:
                0.12698747 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03626318 = 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)
      0.42857143 = coord(3/7)
    
    Date
    20. 1.2007 18:30:22
    Source
    Aslib proceedings. 56(2004) no.4, S.201-211
  16. Robertson, S.E.: Indexing theory and retrieval effectiveness (1979) 0.01
    0.005412673 = product of:
      0.018944355 = sum of:
        0.009472177 = weight(_text_:s in 5175) [ClassicSimilarity], result of:
          0.009472177 = score(doc=5175,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.24024783 = fieldWeight in 5175, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.15625 = fieldNorm(doc=5175)
        0.009472177 = weight(_text_:s in 5175) [ClassicSimilarity], result of:
          0.009472177 = score(doc=5175,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.24024783 = fieldWeight in 5175, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.15625 = fieldNorm(doc=5175)
      0.2857143 = coord(2/7)
    
    Source
    Drexel library quarterly. 14(1979), S.40-56
  17. Robertson, S.E.; Walker, S.; Beaulieu, M.: Experimentation as a way of life : Okapi at TREC (2000) 0.00
    0.004592805 = product of:
      0.016074818 = sum of:
        0.008037409 = weight(_text_:s in 6030) [ClassicSimilarity], result of:
          0.008037409 = score(doc=6030,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 6030, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=6030)
        0.008037409 = weight(_text_:s in 6030) [ClassicSimilarity], result of:
          0.008037409 = score(doc=6030,freq=4.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.20385705 = fieldWeight in 6030, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=6030)
      0.2857143 = coord(2/7)
    
    Source
    Information processing and management. 36(2000) no.1, S.95-108
  18. Robertson, S.E.; Belkin, N.J.: Ranking in principle (1978) 0.00
    0.004330138 = product of:
      0.015155483 = sum of:
        0.0075777415 = weight(_text_:s in 1143) [ClassicSimilarity], result of:
          0.0075777415 = score(doc=1143,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.19219826 = fieldWeight in 1143, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=1143)
        0.0075777415 = weight(_text_:s in 1143) [ClassicSimilarity], result of:
          0.0075777415 = score(doc=1143,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.19219826 = fieldWeight in 1143, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=1143)
      0.2857143 = coord(2/7)
    
    Source
    Journal of documentation. 34(1978), S.93-100
  19. Robertson, S.E.; Hancock-Beaulieu, M.M.: On the evaluation of IR systems (1992) 0.00
    0.004330138 = product of:
      0.015155483 = sum of:
        0.0075777415 = weight(_text_:s in 2619) [ClassicSimilarity], result of:
          0.0075777415 = score(doc=2619,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.19219826 = fieldWeight in 2619, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=2619)
        0.0075777415 = weight(_text_:s in 2619) [ClassicSimilarity], result of:
          0.0075777415 = score(doc=2619,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.19219826 = fieldWeight in 2619, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=2619)
      0.2857143 = coord(2/7)
    
    Source
    Information processing and management. 28(1992) no.4, S.457-466
  20. Robertson, S.E.: ¬The probabilistic character of relevance (1977) 0.00
    0.004330138 = product of:
      0.015155483 = sum of:
        0.0075777415 = weight(_text_:s in 7399) [ClassicSimilarity], result of:
          0.0075777415 = score(doc=7399,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.19219826 = fieldWeight in 7399, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=7399)
        0.0075777415 = weight(_text_:s in 7399) [ClassicSimilarity], result of:
          0.0075777415 = score(doc=7399,freq=2.0), product of:
            0.03942669 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03626318 = queryNorm
            0.19219826 = fieldWeight in 7399, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=7399)
      0.2857143 = coord(2/7)
    
    Source
    Information processing and management. 13(1977), S.247-251