Search (3 results, page 1 of 1)

  • × theme_ss:"Indexierungsstudien"
  • × year_i:[1960 TO 1970}
  1. Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967) 0.01
    0.006865305 = product of:
      0.04805713 = sum of:
        0.012107591 = weight(_text_:information in 1957) [ClassicSimilarity], result of:
          0.012107591 = score(doc=1957,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.23274569 = fieldWeight in 1957, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=1957)
        0.03594954 = weight(_text_:retrieval in 1957) [ClassicSimilarity], result of:
          0.03594954 = score(doc=1957,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.40105087 = fieldWeight in 1957, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.09375 = fieldNorm(doc=1957)
      0.14285715 = coord(2/14)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.47-58.
  2. Zunde, P.; Dexter, M.E.: Factors affecting indexing performance (1969) 0.00
    0.0012230515 = product of:
      0.01712272 = sum of:
        0.01712272 = weight(_text_:information in 7496) [ClassicSimilarity], result of:
          0.01712272 = score(doc=7496,freq=4.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3291521 = fieldWeight in 7496, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=7496)
      0.071428575 = coord(1/14)
    
    Source
    Cooperating information societies: Proceedings of the 32nd Annual Meeting of the American Society for Information Science, San Francisco, CA, 1.-4.10.1969. Ed.: J.B. North
  3. Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960) 0.00
    0.001147117 = product of:
      0.016059637 = sum of:
        0.016059637 = product of:
          0.04817891 = sum of:
            0.04817891 = weight(_text_:22 in 6158) [ClassicSimilarity], result of:
              0.04817891 = score(doc=6158,freq=2.0), product of:
                0.103770934 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.029633347 = 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)
      0.071428575 = coord(1/14)
    
    Footnote
    Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)

Types