Search (5 results, page 1 of 1)

  • × author_ss:"Leydesdorff, L."
  • × year_i:[2010 TO 2020}
  1. Zhou, Q.; Leydesdorff, L.: ¬The normalization of occurrence and co-occurrence matrices in bibliometrics using Cosine similarities and Ochiai coefficients (2016) 0.03 
    0.031386513 = product of:
  0.06277303 = sum of:
    0.06277303 = product of:
      0.12554605 = sum of:
        0.12554605 = weight(_text_:q in 3161) [ClassicSimilarity], result of:
          0.12554605 = score(doc=3161,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.43416747 = fieldWeight in 3161, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.046875 = fieldNorm(doc=3161)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  2. Leydesdorff, L.; Bornmann, L.; Wagner, C.S.: ¬The relative influences of government funding and international collaboration on citation impact (2019) 0.01 
    0.008972864 = product of:
  0.017945727 = sum of:
    0.017945727 = product of:
      0.035891455 = sum of:
        0.035891455 = weight(_text_:22 in 4681) [ClassicSimilarity], result of:
          0.035891455 = score(doc=4681,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.23214069 = fieldWeight in 4681, 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=4681)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    8. 1.2019 18:22:45
  3. Leydesdorff, L.; Bornmann, L.: How fractional counting of citations affects the impact factor : normalization in terms of differences in citation potentials among fields of science (2011) 0.01 
    0.0074773864 = product of:
  0.014954773 = sum of:
    0.014954773 = product of:
      0.029909546 = sum of:
        0.029909546 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
          0.029909546 = score(doc=4186,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.19345059 = fieldWeight in 4186, 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=4186)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 1.2011 12:51:07
  4. Hellsten, I.; Leydesdorff, L.: ¬The construction of interdisciplinarity : the development of the knowledge base and programmatic focus of the journal Climatic Change, 1977-2013 (2016) 0.01 
    0.0074773864 = product of:
  0.014954773 = sum of:
    0.014954773 = product of:
      0.029909546 = sum of:
        0.029909546 = weight(_text_:22 in 3089) [ClassicSimilarity], result of:
          0.029909546 = score(doc=3089,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.19345059 = fieldWeight in 3089, 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=3089)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    24. 8.2016 17:53:22
  5. Leydesdorff, L.; Johnson, M.W.; Ivanova, I.: Toward a calculus of redundancy : signification, codification, and anticipation in cultural evolution (2018) 0.01 
    0.0074773864 = product of:
  0.014954773 = sum of:
    0.014954773 = product of:
      0.029909546 = sum of:
        0.029909546 = weight(_text_:22 in 4463) [ClassicSimilarity], result of:
          0.029909546 = score(doc=4463,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.19345059 = fieldWeight in 4463, 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=4463)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    29. 9.2018 11:22:09

Authors

Themes