Search (5 results, page 1 of 1)

  • × author_ss:"Rousseau, R."
  • × theme_ss:"Informetrie"
  1. Egghe, L.; Rousseau, R.: ¬The Hirsch index of a shifted Lotka function and its relation with the impact factor (2012) 0.01 
    0.008610224 = product of:
  0.017220449 = sum of:
    0.017220449 = product of:
      0.034440897 = sum of:
        0.034440897 = weight(_text_:c in 243) [ClassicSimilarity], result of:
          0.034440897 = score(doc=243,freq=2.0), product of:
            0.1291003 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.037426826 = queryNorm
            0.2667763 = fieldWeight in 243, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.0546875 = fieldNorm(doc=243)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Based on earlier results about the shifted Lotka function, we prove an implicit functional relation between the Hirsch index (h-index) and the total number of sources (T). It is shown that the corresponding function, h(T), is concavely increasing. Next, we construct an implicit relation between the h-index and the impact factor IF (an average number of items per source). The corresponding function h(IF) is increasing and we show that if the parameter C in the numerator of the shifted Lotka function is high, then the relation between the h-index and the impact factor is almost linear.
  2. Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996) 0.01 
    0.0076062274 = product of:
  0.015212455 = sum of:
    0.015212455 = product of:
      0.03042491 = sum of:
        0.03042491 = weight(_text_:22 in 7659) [ClassicSimilarity], result of:
          0.03042491 = score(doc=7659,freq=2.0), product of:
            0.13106237 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037426826 = 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)
  0.5 = coord(1/2)
    Source
    Journal of information science. 22(1996) no.3, S.165-170
  3. Asonuma, A.; Fang, Y.; Rousseau, R.: Reflections on the age distribution of Japanese scientists (2006) 0.01 
    0.0076062274 = product of:
  0.015212455 = sum of:
    0.015212455 = product of:
      0.03042491 = sum of:
        0.03042491 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
          0.03042491 = score(doc=5270,freq=2.0), product of:
            0.13106237 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037426826 = 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)
  0.5 = coord(1/2)
    Date
    22. 7.2006 15:26:24
  4. Colebunders, R.; Kenyon, C.; Rousseau, R.: Increase in numbers and proportions of review articles in Tropical Medicine, Infectious Diseases, and oncology (2014) 0.01 
    0.007380193 = product of:
  0.014760386 = sum of:
    0.014760386 = product of:
      0.029520772 = sum of:
        0.029520772 = weight(_text_:c in 1189) [ClassicSimilarity], result of:
          0.029520772 = score(doc=1189,freq=2.0), product of:
            0.1291003 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.037426826 = queryNorm
            0.22866541 = fieldWeight in 1189, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.046875 = fieldNorm(doc=1189)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  5. Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003) 0.01 
    0.0050708186 = product of:
  0.010141637 = sum of:
    0.010141637 = product of:
      0.020283274 = sum of:
        0.020283274 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
          0.020283274 = score(doc=5171,freq=2.0), product of:
            0.13106237 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037426826 = 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)
  0.5 = coord(1/2)
    Date
    9. 7.2006 10:22:35

Authors

Years