Search (5 results, page 1 of 1)

  • × author_ss:"Cleverdon, C.W."
  • × theme_ss:"Indexierungsstudien"
  1. Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960) 0.04
    0.04446119 = product of:
      0.08892238 = sum of:
        0.08892238 = sum of:
          0.012821447 = weight(_text_:e in 6158) [ClassicSimilarity], result of:
            0.012821447 = score(doc=6158,freq=2.0), product of:
              0.06727942 = queryWeight, product of:
                1.43737 = idf(docFreq=28552, maxDocs=44218)
                0.046807308 = 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)
          0.07610093 = weight(_text_:22 in 6158) [ClassicSimilarity], result of:
            0.07610093 = score(doc=6158,freq=2.0), product of:
              0.16391122 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046807308 = 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)
      0.5 = coord(1/2)
    
    Footnote
    Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)
    Language
    e
  2. Cleverdon, C.W.: Evaluation tests of information retrieval systems (1970) 0.00
    0.004273816 = product of:
      0.008547632 = sum of:
        0.008547632 = product of:
          0.017095264 = sum of:
            0.017095264 = weight(_text_:e in 2272) [ClassicSimilarity], result of:
              0.017095264 = score(doc=2272,freq=2.0), product of:
                0.06727942 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046807308 = queryNorm
                0.2540935 = fieldWeight in 2272, 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=2272)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  3. 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
    0.004273816 = product of:
      0.008547632 = sum of:
        0.008547632 = product of:
          0.017095264 = sum of:
            0.017095264 = weight(_text_:e in 2741) [ClassicSimilarity], result of:
              0.017095264 = score(doc=2741,freq=2.0), product of:
                0.06727942 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046807308 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  4. Cleverdon, C.W.; Mills, J.; Keen, M.: Factors determining the performance of indexing systems : ASLIB Cranfield research project (1966) 0.00
    0.003739589 = product of:
      0.007479178 = sum of:
        0.007479178 = product of:
          0.014958356 = sum of:
            0.014958356 = weight(_text_:e in 5363) [ClassicSimilarity], result of:
              0.014958356 = score(doc=5363,freq=2.0), product of:
                0.06727942 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046807308 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  5. Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967) 0.00
    0.0032053618 = product of:
      0.0064107236 = sum of:
        0.0064107236 = product of:
          0.012821447 = sum of:
            0.012821447 = weight(_text_:e in 1957) [ClassicSimilarity], result of:
              0.012821447 = score(doc=1957,freq=2.0), product of:
                0.06727942 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.046807308 = queryNorm
                0.19057012 = fieldWeight in 1957, 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=1957)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e

Authors

Types