Search (3 results, page 1 of 1)

  • × theme_ss:"Indexierungsstudien"
  • × type_ss:"r"
  1. Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960) 0.01
    0.008960012 = product of:
      0.026880037 = sum of:
        0.0090247495 = weight(_text_:e in 6158) [ClassicSimilarity], result of:
          0.0090247495 = score(doc=6158,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.19057012 = fieldWeight in 6158, 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=6158)
        0.017855287 = product of:
          0.05356586 = sum of:
            0.05356586 = weight(_text_:22 in 6158) [ClassicSimilarity], result of:
              0.05356586 = score(doc=6158,freq=2.0), product of:
                0.1153737 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03294669 = queryNorm
                0.46428138 = fieldWeight in 6158, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=6158)
          0.33333334 = coord(1/3)
      0.33333334 = coord(2/6)
    
    Footnote
    Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)
    Language
    e
  2. Cleverdon, C.W.: Aslib Cranfield research project : report on the testing and analysis of an investigation into the comparative efficiency of indexing systems (1962) 0.00
    0.0020055 = product of:
      0.012033 = sum of:
        0.012033 = weight(_text_:e in 2741) [ClassicSimilarity], result of:
          0.012033 = score(doc=2741,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.2540935 = fieldWeight in 2741, 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=2741)
      0.16666667 = coord(1/6)
    
    Language
    e
  3. Cleverdon, C.W.; Mills, J.; Keen, M.: Factors determining the performance of indexing systems : ASLIB Cranfield research project (1966) 0.00
    0.0017548124 = product of:
      0.010528875 = sum of:
        0.010528875 = weight(_text_:e in 5363) [ClassicSimilarity], result of:
          0.010528875 = score(doc=5363,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.2223318 = fieldWeight in 5363, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.109375 = fieldNorm(doc=5363)
      0.16666667 = coord(1/6)
    
    Language
    e