Search (4 results, page 1 of 1)

  • × author_ss:"Leeuwen, T.N. van"
  1. Calero Medina, C.M.; Leeuwen, T.N. van: Seed journal citation network maps : a method based on network theory (2012) 0.02 
    0.0155380275 = product of:
  0.031076055 = sum of:
    0.031076055 = product of:
      0.06215211 = sum of:
        0.06215211 = weight(_text_:56 in 258) [ClassicSimilarity], result of:
          0.06215211 = score(doc=258,freq=2.0), product of:
            0.22549127 = queryWeight, product of:
              4.1578603 = idf(docFreq=1879, maxDocs=44218)
              0.054232527 = queryNorm
            0.2756298 = fieldWeight in 258, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.1578603 = idf(docFreq=1879, maxDocs=44218)
              0.046875 = fieldNorm(doc=258)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    11. 6.2012 18:56:49
  2. Costas, R.; Leeuwen, T.N. van: Approaching the "reward triangle" : general analysis of the presence of funding acknowledgments and "peer interactive communication" in scientific publications (2012) 0.01 
    0.012948357 = product of:
  0.025896713 = sum of:
    0.025896713 = product of:
      0.051793426 = sum of:
        0.051793426 = weight(_text_:56 in 363) [ClassicSimilarity], result of:
          0.051793426 = score(doc=363,freq=2.0), product of:
            0.22549127 = queryWeight, product of:
              4.1578603 = idf(docFreq=1879, maxDocs=44218)
              0.054232527 = queryNorm
            0.22969149 = fieldWeight in 363, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.1578603 = idf(docFreq=1879, maxDocs=44218)
              0.0390625 = fieldNorm(doc=363)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    26. 8.2012 13:56:49
  3. Moed, H.F.; Leeuwen, T.N. van; Reedijk, J.: ¬A new classification system to describe the ageing of scientific journals and their impact factors (1998) 0.01 
    0.010358686 = product of:
  0.020717371 = sum of:
    0.020717371 = product of:
      0.041434743 = sum of:
        0.041434743 = weight(_text_:56 in 4719) [ClassicSimilarity], result of:
          0.041434743 = score(doc=4719,freq=2.0), product of:
            0.22549127 = queryWeight, product of:
              4.1578603 = idf(docFreq=1879, maxDocs=44218)
              0.054232527 = queryNorm
            0.18375319 = fieldWeight in 4719, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.1578603 = idf(docFreq=1879, maxDocs=44218)
              0.03125 = fieldNorm(doc=4719)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    6. 9.2000 19:56:30
  4. Costas, R.; Bordons, M.; Leeuwen, T.N. van; Raan, A.F.J. van: Scaling rules in the science system : Influence of field-specific citation characteristics on the impact of individual researchers (2009) 0.01 
    0.009184699 = product of:
  0.018369397 = sum of:
    0.018369397 = product of:
      0.036738794 = sum of:
        0.036738794 = weight(_text_:22 in 2759) [ClassicSimilarity], result of:
          0.036738794 = score(doc=2759,freq=2.0), product of:
            0.18991306 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.054232527 = queryNorm
            0.19345059 = fieldWeight in 2759, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2759)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 3.2009 19:02:48

Authors

Years

Themes