Search (5 results, page 1 of 1)

  • × author_ss:"Leydesdorff, L."
  • × theme_ss:"Informetrie"
  • × year_i:[2000 TO 2010}
  1. Leydesdorff, L.: Can networks of journal-journal citations be used as indicators of change in the social sciences? (2003) 0.01 
    0.006082151 = product of:
  0.012164302 = sum of:
    0.012164302 = product of:
      0.036492907 = sum of:
        0.036492907 = weight(_text_:22 in 4460) [ClassicSimilarity], result of:
          0.036492907 = score(doc=4460,freq=2.0), product of:
            0.15720168 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044891298 = queryNorm
            0.23214069 = fieldWeight in 4460, 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=4460)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    6.11.2005 19:02:22
  2. Leydesdorff, L.; Sun, Y.: National and international dimensions of the Triple Helix in Japan : university-industry-government versus international coauthorship relations (2009) 0.01 
    0.006082151 = product of:
  0.012164302 = sum of:
    0.012164302 = product of:
      0.036492907 = sum of:
        0.036492907 = weight(_text_:22 in 2761) [ClassicSimilarity], result of:
          0.036492907 = score(doc=2761,freq=2.0), product of:
            0.15720168 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044891298 = queryNorm
            0.23214069 = fieldWeight in 2761, 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=2761)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    22. 3.2009 19:07:20
  3. Leydesdorff, L.; Probst, C.: ¬The delineation of an interdisciplinary specialty in terms of a journal set : the case of communication studies (2009) 0.01 
    0.0059014075 = product of:
  0.011802815 = sum of:
    0.011802815 = product of:
      0.035408445 = sum of:
        0.035408445 = weight(_text_:c in 2952) [ClassicSimilarity], result of:
          0.035408445 = score(doc=2952,freq=2.0), product of:
            0.15484828 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.044891298 = queryNorm
            0.22866541 = fieldWeight in 2952, 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=2952)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
  4. Leydesdorff, L.; Rafols, I.: ¬A global map of science based on the ISI subject categories (2009) 0.01 
    0.0058798613 = product of:
  0.011759723 = sum of:
    0.011759723 = product of:
      0.035279166 = sum of:
        0.035279166 = weight(_text_:i in 2713) [ClassicSimilarity], result of:
          0.035279166 = score(doc=2713,freq=2.0), product of:
            0.16931784 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.044891298 = queryNorm
            0.20836058 = fieldWeight in 2713, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2713)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
  5. Rafols, I.; Leydesdorff, L.: Content-based and algorithmic classifications of journals : perspectives on the dynamics of scientific communication and indexer effects (2009) 0.01 
    0.0058798613 = product of:
  0.011759723 = sum of:
    0.011759723 = product of:
      0.035279166 = sum of:
        0.035279166 = weight(_text_:i in 3095) [ClassicSimilarity], result of:
          0.035279166 = score(doc=3095,freq=2.0), product of:
            0.16931784 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.044891298 = queryNorm
            0.20836058 = fieldWeight in 3095, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3095)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)

Authors