Search (4 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
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 4460) [ClassicSimilarity], result of:
              0.036938448 = score(doc=4460,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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)
          0.5 = coord(1/2)
      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
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 2761) [ClassicSimilarity], result of:
              0.036938448 = score(doc=2761,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:07:20
  3. Leydesdorff, L.; Rafols, I.: ¬A global map of science based on the ISI subject categories (2009) 0.01
    0.008927471 = product of:
      0.017854942 = sum of:
        0.017854942 = product of:
          0.035709884 = sum of:
            0.035709884 = weight(_text_:i in 2713) [ClassicSimilarity], result of:
              0.035709884 = score(doc=2713,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  4. Rafols, I.; Leydesdorff, L.: Content-based and algorithmic classifications of journals : perspectives on the dynamics of scientific communication and indexer effects (2009) 0.01
    0.008927471 = product of:
      0.017854942 = sum of:
        0.017854942 = product of:
          0.035709884 = sum of:
            0.035709884 = weight(_text_:i in 3095) [ClassicSimilarity], result of:
              0.035709884 = score(doc=3095,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    

Authors