Pulgarin, A.; Gil-Leiva, I.: Bibliometric analysis of the automatic indexing literature : 1956-2000 (2004)
0.02
0.023213625 = product of:
0.04642725 = sum of:
0.04642725 = product of:
0.0928545 = sum of:
0.0928545 = weight(_text_:2000 in 2566) [ClassicSimilarity], result of:
0.0928545 = score(doc=2566,freq=4.0), product of:
0.20949209 = queryWeight, product of:
4.0524464 = idf(docFreq=2088, maxDocs=44218)
0.051695216 = queryNorm
0.44323632 = fieldWeight in 2566, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.0524464 = idf(docFreq=2088, maxDocs=44218)
0.0546875 = fieldNorm(doc=2566)
0.5 = coord(1/2)
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.
