Search (5 results, page 1 of 1)

  • × year_i:[1990 TO 2000}
  • × author_ss:"Egghe, L."
  1. Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996) 0.03 
    0.031905405 = product of:
  0.06381081 = sum of:
    0.06381081 = sum of:
      0.021194918 = weight(_text_:2 in 7659) [ClassicSimilarity], result of:
        0.021194918 = score(doc=7659,freq=2.0), product of:
          0.1294644 = queryWeight, product of:
            2.4695914 = idf(docFreq=10170, maxDocs=44218)
            0.05242341 = queryNorm
          0.16371232 = fieldWeight in 7659, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            2.4695914 = idf(docFreq=10170, maxDocs=44218)
            0.046875 = fieldNorm(doc=7659)
      0.04261589 = weight(_text_:22 in 7659) [ClassicSimilarity], result of:
        0.04261589 = score(doc=7659,freq=2.0), product of:
          0.18357785 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05242341 = 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)
    Abstract
    It is possible, using ISI's Journal Citation Report (JCR), to calculate average impact factors (AIF) for LCR's subject categories but it can be more useful to know the global Impact Factor (GIF) of a subject category and compare the 2 values. Reports results of a study to compare the relationships between AIFs and GIFs of subjects, based on the particular case of the average impact factor of a subfield versus the impact factor of this subfield as a whole, the difference being studied between an average of quotients, denoted as AQ, and a global average, obtained as a quotient of averages, and denoted as GQ. In the case of impact factors, AQ becomes the average impact factor of a field, and GQ becomes its global impact factor. Discusses a number of applications of this technique in the context of informetrics and scientometrics
    Source
    Journal of information science. 22(1996) no.3, S.165-170
  2. Egghe, L.: Little science, big science and beyond (1994) 0.01 
    0.012363703 = product of:
  0.024727406 = sum of:
    0.024727406 = product of:
      0.049454812 = sum of:
        0.049454812 = weight(_text_:2 in 6883) [ClassicSimilarity], result of:
          0.049454812 = score(doc=6883,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.38199544 = fieldWeight in 6883, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.109375 = fieldNorm(doc=6883)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Scientometrics. 30(1994) nos.2/3, S.389-392
  3. Egghe, L.: On the law of Zipf-Mandelbrot for multi-word phrases (1999) 0.01 
    0.00999138 = product of:
  0.01998276 = sum of:
    0.01998276 = product of:
      0.03996552 = sum of:
        0.03996552 = weight(_text_:2 in 3058) [ClassicSimilarity], result of:
          0.03996552 = score(doc=3058,freq=4.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.30869892 = fieldWeight in 3058, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.0625 = fieldNorm(doc=3058)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    This article studies the probabilities of the occurence of multi-word (m-word) phrases (m=2,3,...) in relation to the probabilities of occurence of the single words. It is well known that, in the latter case, the lae of Zipf is valid (i.e., a power law). We prove that in the case of m-word phrases (m>=2), this is not the case. We present 2 independent proof of this
  4. Egghe, L.: ¬The amount of actions needed for shelving and reshelving (1996) 0.01 
    0.007064973 = product of:
  0.014129946 = sum of:
    0.014129946 = product of:
      0.028259892 = sum of:
        0.028259892 = weight(_text_:2 in 4394) [ClassicSimilarity], result of:
          0.028259892 = score(doc=4394,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.2182831 = fieldWeight in 4394, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.0625 = fieldNorm(doc=4394)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Discusses the number of actions (or time) needed to organize library shelves. Studies 2 types pf problem: organizing a library shelf out of an unordered pile of books, and putting an existing shelf of books in the rough order. Uses results from information theory as well as from rank order statistics (runs). Draws conclusions about the advised frequency with which these actions should be undertaken
  5. Egghe, L.; Rousseau, R.: ¬A theoretical study of recall and precision using a topological approach to information retrieval (1998) 0.01 
    0.007064973 = product of:
  0.014129946 = sum of:
    0.014129946 = product of:
      0.028259892 = sum of:
        0.028259892 = weight(_text_:2 in 3267) [ClassicSimilarity], result of:
          0.028259892 = score(doc=3267,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.2182831 = fieldWeight in 3267, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.0625 = fieldNorm(doc=3267)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 34(1998) nos.2/3, S.191-218

Themes