Search (4 results, page 1 of 1)

  • × author_ss:"Egghe, L."
  1. Egghe, L.: Informetric explanation of some Leiden Ranking graphs (2014) 0.04
    0.0415451 = product of:
      0.0830902 = sum of:
        0.0830902 = product of:
          0.1661804 = sum of:
            0.1661804 = weight(_text_:500 in 1236) [ClassicSimilarity], result of:
              0.1661804 = score(doc=1236,freq=2.0), product of:
                0.3075407 = queryWeight, product of:
                  6.113391 = idf(docFreq=265, maxDocs=44218)
                  0.050306078 = queryNorm
                0.5403525 = fieldWeight in 1236, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.113391 = idf(docFreq=265, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1236)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The S-shaped functional relation between the mean citation score and the proportion of top 10% publications for the 500 Leiden Ranking universities is explained using results of the shifted Lotka function. Also the concave or convex relation between the proportion of top 100?% publications, for different fractions ?, is explained using the obtained new informetric model.
  2. Egghe, L.; Guns, R.; Rousseau, R.; Leuven, K.U.: Erratum (2012) 0.02
    0.017039448 = product of:
      0.034078896 = sum of:
        0.034078896 = product of:
          0.06815779 = sum of:
            0.06815779 = weight(_text_:22 in 4992) [ClassicSimilarity], result of:
              0.06815779 = score(doc=4992,freq=2.0), product of:
                0.17616332 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050306078 = 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)
      0.5 = coord(1/2)
    
    Date
    14. 2.2012 12:53:22
  3. Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996) 0.01
    0.010223668 = product of:
      0.020447336 = sum of:
        0.020447336 = product of:
          0.040894672 = sum of:
            0.040894672 = weight(_text_:22 in 7659) [ClassicSimilarity], result of:
              0.040894672 = score(doc=7659,freq=2.0), product of:
                0.17616332 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050306078 = 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
  4. Egghe, L.: ¬A universal method of information retrieval evaluation : the "missing" link M and the universal IR surface (2004) 0.01
    0.010223668 = product of:
      0.020447336 = sum of:
        0.020447336 = product of:
          0.040894672 = sum of:
            0.040894672 = weight(_text_:22 in 2558) [ClassicSimilarity], result of:
              0.040894672 = score(doc=2558,freq=2.0), product of:
                0.17616332 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050306078 = queryNorm
                0.23214069 = fieldWeight in 2558, 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=2558)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    14. 8.2004 19:17:22