Search (5 results, page 1 of 1)

  • × author_ss:"Luhn, H.P."
  1. Luhn, H.P.: ¬The automatic derivation of information retrieval encodements from machine-readable texts (1961) 0.03
    0.02680118 = product of:
      0.05360236 = sum of:
        0.05360236 = product of:
          0.08040354 = sum of:
            0.07107908 = weight(_text_:k in 1926) [ClassicSimilarity], result of:
              0.07107908 = score(doc=1926,freq=2.0), product of:
                0.18021692 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.05048407 = queryNorm
                0.39440846 = fieldWeight in 1926, 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=1926)
            0.009324451 = weight(_text_:s in 1926) [ClassicSimilarity], result of:
              0.009324451 = score(doc=1926,freq=4.0), product of:
                0.054888178 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.05048407 = queryNorm
                0.16988087 = fieldWeight in 1926, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1926)
          0.6666667 = coord(2/3)
      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.21-24.
    Pages
    S.1021-1028
  2. Luhn, H.P.: Keyword-in-context index for technical literature (1960) 0.00
    0.0017582354 = product of:
      0.0035164708 = sum of:
        0.0035164708 = product of:
          0.010549412 = sum of:
            0.010549412 = weight(_text_:s in 4997) [ClassicSimilarity], result of:
              0.010549412 = score(doc=4997,freq=2.0), product of:
                0.054888178 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.05048407 = queryNorm
                0.19219826 = fieldWeight in 4997, 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=4997)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    American documentation. 11(1960), S.288-295
  3. Luhn, H.P.: ¬A statistical approach to the mechanical encoding and searching of literary information (1957) 0.00
    0.0017582354 = product of:
      0.0035164708 = sum of:
        0.0035164708 = product of:
          0.010549412 = sum of:
            0.010549412 = weight(_text_:s in 5453) [ClassicSimilarity], result of:
              0.010549412 = score(doc=5453,freq=2.0), product of:
                0.054888178 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.05048407 = queryNorm
                0.19219826 = fieldWeight in 5453, 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=5453)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    IBM journal of research and development. 1(1957), S.309-317
  4. Luhn, H.P.: Keyword-in-context index for technical literature : KWIC index (1959) 0.00
    0.0013186766 = product of:
      0.0026373533 = sum of:
        0.0026373533 = product of:
          0.007912059 = sum of:
            0.007912059 = weight(_text_:s in 1780) [ClassicSimilarity], result of:
              0.007912059 = score(doc=1780,freq=2.0), product of:
                0.054888178 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.05048407 = queryNorm
                0.14414869 = fieldWeight in 1780, 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=1780)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Reprinted in: Theory of subject analysis: a sourcebook. Ed. by. L.M. Chan et al. Littleton, CO: Libraries Unlimited 1985, S.170-180
  5. Luhn, H.P.: Keyword-in-context index for technical literature (1985) 0.00
    3.84614E-4 = product of:
      7.69228E-4 = sum of:
        7.69228E-4 = product of:
          0.002307684 = sum of:
            0.002307684 = weight(_text_:s in 3638) [ClassicSimilarity], result of:
              0.002307684 = score(doc=3638,freq=2.0), product of:
                0.054888178 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.05048407 = queryNorm
                0.04204337 = fieldWeight in 3638, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=3638)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Pages
    S.168-180