Search (2 results, page 1 of 1)

  • × year_i:[1960 TO 1970}
  • × theme_ss:"Indexierungsstudien"
  1. Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967) 0.01 
    0.008572357 = product of:
  0.051434137 = sum of:
    0.051434137 = weight(_text_:retrieval in 1957) [ClassicSimilarity], result of:
      0.051434137 = score(doc=1957,freq=2.0), product of:
        0.12824841 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.042397358 = 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)
  0.16666667 = coord(1/6)
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.47-58.
  2. 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 
    0.0038295041 = product of:
  0.022977024 = sum of:
    0.022977024 = product of:
      0.06893107 = sum of:
        0.06893107 = weight(_text_:22 in 6158) [ClassicSimilarity], result of:
          0.06893107 = score(doc=6158,freq=2.0), product of:
            0.14846832 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042397358 = 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)
  0.16666667 = coord(1/6)
    Footnote
    Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)

Types