Search (7 results, page 1 of 1)

Rousseau, R.: Robert Fairthorne and the empirical power laws (2005) 0.02

0.017383551 = product of:
  0.05215065 = sum of:
    0.05215065 = product of:
      0.1043013 = sum of:
        0.1043013 = weight(_text_:2005 in 4398) [ClassicSimilarity], result of:
          0.1043013 = score(doc=4398,freq=5.0), product of:
            0.19702037 = queryWeight, product of:
              4.329179 = idf(docFreq=1583, maxDocs=44218)
              0.04550987 = queryNorm
            0.5293935 = fieldWeight in 4398, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.329179 = idf(docFreq=1583, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4398)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Source: Journal of documentation. 61(2005) no.2, S.194-202
Year: 2005

Frandsen, T.F.; Rousseau, R.: Article impact calculated over arbitrary periods (2005) 0.01

0.014900185 = product of:
  0.044700556 = sum of:
    0.044700556 = product of:
      0.08940111 = sum of:
        0.08940111 = weight(_text_:2005 in 3264) [ClassicSimilarity], result of:
          0.08940111 = score(doc=3264,freq=5.0), product of:
            0.19702037 = queryWeight, product of:
              4.329179 = idf(docFreq=1583, maxDocs=44218)
              0.04550987 = queryNorm
            0.45376584 = fieldWeight in 3264, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.329179 = idf(docFreq=1583, maxDocs=44218)
              0.046875 = fieldNorm(doc=3264)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Source: Journal of the American Society for Information Science and Technology. 56(2005) no.1, S.58-62
Year: 2005

Guns, R.; Rousseau, R.: Simulating growth of the h-index (2009) 0.01
```
0.010994322 = product of:
  0.032982964 = sum of:
    0.032982964 = product of:
      0.06596593 = sum of:
        0.06596593 = weight(_text_:2005 in 2717) [ClassicSimilarity], result of:
          0.06596593 = score(doc=2717,freq=2.0), product of:
            0.19702037 = queryWeight, product of:
              4.329179 = idf(docFreq=1583, maxDocs=44218)
              0.04550987 = queryNorm
            0.33481783 = fieldWeight in 2717, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.329179 = idf(docFreq=1583, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2717)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
```
Abstract

Temporal growth of the h-index in a diachronous cumulative time series is predicted to be linear by Hirsch (2005), whereas other models predict a concave increase. Actual data generally yield a linear growth or S-shaped growth. We study the h-index's growth in computer simulations of the publication-citation process. In most simulations the h-index grows linearly in time. Only occasionally does an S-shape occur, while in our simulations a concave increase is very rare. The latter is often signalled by the occurrence of plateaus - periods of h-index stagnation. Several parameters and their influence on the h-index's growth are determined and discussed.

Egghe, L.; Guns, R.; Rousseau, R.; Leuven, K.U.: Erratum (2012) 0.01

0.010276599 = product of:
  0.030829797 = sum of:
    0.030829797 = product of:
      0.061659593 = sum of:
        0.061659593 = weight(_text_:22 in 4992) [ClassicSimilarity], result of:
          0.061659593 = score(doc=4992,freq=2.0), product of:
            0.15936781 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04550987 = queryNorm
            0.38690117 = fieldWeight in 4992, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=4992)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date: 14. 2.2012 12:53:22

Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996) 0.01

0.006165959 = product of:
  0.018497877 = sum of:
    0.018497877 = product of:
      0.036995754 = sum of:
        0.036995754 = weight(_text_:22 in 7659) [ClassicSimilarity], result of:
          0.036995754 = score(doc=7659,freq=2.0), product of:
            0.15936781 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04550987 = queryNorm
            0.23214069 = fieldWeight in 7659, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=7659)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Source: Journal of information science. 22(1996) no.3, S.165-170

Asonuma, A.; Fang, Y.; Rousseau, R.: Reflections on the age distribution of Japanese scientists (2006) 0.01

0.006165959 = product of:
  0.018497877 = sum of:
    0.018497877 = product of:
      0.036995754 = sum of:
        0.036995754 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
          0.036995754 = score(doc=5270,freq=2.0), product of:
            0.15936781 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04550987 = queryNorm
            0.23214069 = fieldWeight in 5270, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=5270)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date: 22. 7.2006 15:26:24

Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003) 0.00

0.00411064 = product of:
  0.012331919 = sum of:
    0.012331919 = product of:
      0.024663838 = sum of:
        0.024663838 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
          0.024663838 = score(doc=5171,freq=2.0), product of:
            0.15936781 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04550987 = queryNorm
            0.15476047 = fieldWeight in 5171, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=5171)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date: 9. 7.2006 10:22:35

Search (7 results, page 1 of 1)

Authors

Years

Themes