Search (3 results, page 1 of 1)

  • × theme_ss:"Automatisches Indexieren"
  • × theme_ss:"Informetrie"
  1. Pulgarin, A.; Gil-Leiva, I.: Bibliometric analysis of the automatic indexing literature : 1956-2000 (2004) 0.01 
    0.0133377705 = sum of:
  0.010410568 = product of:
    0.08328454 = sum of:
      0.08328454 = weight(_text_:authors in 2566) [ClassicSimilarity], result of:
        0.08328454 = score(doc=2566,freq=4.0), product of:
          0.16702999 = queryWeight, product of:
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.03663891 = queryNorm
          0.49862027 = fieldWeight in 2566, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.0546875 = fieldNorm(doc=2566)
    0.125 = coord(1/8)
  0.0029272023 = product of:
    0.0058544045 = sum of:
      0.0058544045 = weight(_text_:e in 2566) [ClassicSimilarity], result of:
        0.0058544045 = score(doc=2566,freq=2.0), product of:
          0.05266367 = queryWeight, product of:
            1.43737 = idf(docFreq=28552, maxDocs=44218)
            0.03663891 = queryNorm
          0.1111659 = fieldWeight in 2566, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.43737 = idf(docFreq=28552, maxDocs=44218)
            0.0546875 = fieldNorm(doc=2566)
    0.5 = coord(1/2)
    Abstract
    We present a bibliometric study of a corpus of 839 bibliographic references about automatic indexing, covering the period 1956-2000. We analyse the distribution of authors and works, the obsolescence and its dispersion, and the distribution of the literature by topic, year, and source type. We conclude that: (i) there has been a constant interest on the part of researchers; (ii) the most studied topics were the techniques and methods employed and the general aspects of automatic indexing; (iii) the productivity of the authors does fit a Lotka distribution (Dmax=0.02 and critical value=0.054); (iv) the annual aging factor is 95%; and (v) the dispersion of the literature is low.
    Language
    e
  2. Gomez, I.: Coping with the problem of subject classification diversity (1996) 0.00 
    0.0014636011 = product of:
  0.0029272023 = sum of:
    0.0029272023 = product of:
      0.0058544045 = sum of:
        0.0058544045 = weight(_text_:e in 5074) [ClassicSimilarity], result of:
          0.0058544045 = score(doc=5074,freq=2.0), product of:
            0.05266367 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03663891 = queryNorm
            0.1111659 = fieldWeight in 5074, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5074)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e
  3. Tavakolizadeh-Ravari, M.: Analysis of the long term dynamics in thesaurus developments and its consequences (2017) 0.00 
    8.363435E-4 = product of:
  0.001672687 = sum of:
    0.001672687 = product of:
      0.003345374 = sum of:
        0.003345374 = weight(_text_:e in 3081) [ClassicSimilarity], result of:
          0.003345374 = score(doc=3081,freq=2.0), product of:
            0.05266367 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03663891 = queryNorm
            0.063523374 = fieldWeight in 3081, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03125 = fieldNorm(doc=3081)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e

Authors

Years

Types