Search (9 results, page 1 of 1)

  • × author_ss:"Cleverdon, C.W."
  1. Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960) 0.02
    0.020436473 = product of:
      0.03065471 = sum of:
        0.008897942 = weight(_text_:s in 6158) [ClassicSimilarity], result of:
          0.008897942 = score(doc=6158,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.20385705 = fieldWeight in 6158, 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=6158)
        0.021756768 = product of:
          0.065270305 = sum of:
            0.065270305 = weight(_text_:22 in 6158) [ClassicSimilarity], result of:
              0.065270305 = score(doc=6158,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    Footnote
    Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)
    Pages
    166 S
  2. Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1963) 0.00
    0.0029659807 = product of:
      0.008897942 = sum of:
        0.008897942 = weight(_text_:s in 577) [ClassicSimilarity], result of:
          0.008897942 = score(doc=577,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.20385705 = fieldWeight in 577, 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=577)
      0.33333334 = coord(1/3)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.98-110.
    Source
    Aslib proceedings. 15(1963) no.4, S.106-130
  3. Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967) 0.00
    0.0029659807 = product of:
      0.008897942 = sum of:
        0.008897942 = weight(_text_:s in 1957) [ClassicSimilarity], result of:
          0.008897942 = score(doc=1957,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.20385705 = fieldWeight in 1957, 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=1957)
      0.33333334 = coord(1/3)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.47-58.
    Source
    Aslib proceedings. 19(1967), S.173-194
  4. Cleverdon, C.W.: On the inverse relationship of recall and precision (1972) 0.00
    0.0027963533 = product of:
      0.008389059 = sum of:
        0.008389059 = weight(_text_:s in 1843) [ClassicSimilarity], result of:
          0.008389059 = score(doc=1843,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.19219826 = fieldWeight in 1843, 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=1843)
      0.33333334 = coord(1/3)
    
    Source
    Journal of documentation. 28(1972), S.195-201
  5. Cleverdon, C.W.: Evaluation tests of information retrieval systems (1970) 0.00
    0.0027963533 = product of:
      0.008389059 = sum of:
        0.008389059 = weight(_text_:s in 2272) [ClassicSimilarity], result of:
          0.008389059 = score(doc=2272,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.19219826 = fieldWeight in 2272, 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=2272)
      0.33333334 = coord(1/3)
    
    Source
    Journal of documentation. 26(1970), S.55-67
  6. 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
    0.0027963533 = product of:
      0.008389059 = sum of:
        0.008389059 = weight(_text_:s in 2741) [ClassicSimilarity], result of:
          0.008389059 = score(doc=2741,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.19219826 = fieldWeight in 2741, 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=2741)
      0.33333334 = coord(1/3)
    
    Pages
    302 S
  7. Cleverdon, C.W.: Design and evaluation of information systems (1971) 0.00
    0.0027963533 = product of:
      0.008389059 = sum of:
        0.008389059 = weight(_text_:s in 248) [ClassicSimilarity], result of:
          0.008389059 = score(doc=248,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.19219826 = fieldWeight in 248, 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=248)
      0.33333334 = coord(1/3)
    
    Source
    Annual review of information science and technology. 6(1971), S.41-74
  8. Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1997) 0.00
    0.0013981767 = product of:
      0.0041945297 = sum of:
        0.0041945297 = weight(_text_:s in 576) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=576,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.09609913 = fieldWeight in 576, 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=576)
      0.33333334 = coord(1/3)
    
    Pages
    S.65-83
  9. Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1985) 0.00
    9.886601E-4 = product of:
      0.0029659804 = sum of:
        0.0029659804 = weight(_text_:s in 3643) [ClassicSimilarity], result of:
          0.0029659804 = score(doc=3643,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.06795235 = fieldWeight in 3643, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03125 = fieldNorm(doc=3643)
      0.33333334 = coord(1/3)
    
    Footnote
    Original in: Aslib proceedings 15(1963) no.4, S.106-130.
    Pages
    S.221-246

Years

Types