Search (2 results, page 1 of 1)

Pulgarin, A.; Gil-Leiva, I.: Bibliometric analysis of the automatic indexing literature : 1956-2000 (2004) 0.01
```
0.014970168 = product of:
  0.029940335 = sum of:
    0.029940335 = product of:
      0.11976134 = sum of:
        0.11976134 = weight(_text_:authors in 2566) [ClassicSimilarity], result of:
          0.11976134 = score(doc=2566,freq=4.0), product of:
            0.24018547 = queryWeight, product of:
              4.558814 = idf(docFreq=1258, maxDocs=44218)
              0.052685954 = 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)
      0.25 = coord(1/4)
  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.

Tavakolizadeh-Ravari, M.: Analysis of the long term dynamics in thesaurus developments and its consequences (2017) 0.00

0.0036046011 = product of:
  0.0072092023 = sum of:
    0.0072092023 = product of:
      0.014418405 = sum of:
        0.014418405 = weight(_text_:m in 3081) [ClassicSimilarity], result of:
          0.014418405 = score(doc=3081,freq=2.0), product of:
            0.13110629 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.052685954 = queryNorm
            0.10997493 = fieldWeight in 3081, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.03125 = fieldNorm(doc=3081)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Search (2 results, page 1 of 1)

Authors

Years

Types