Search (6 results, page 1 of 1)

  • × author_ss:"Bornmann, L."
  1. Marx, W.; Bornmann, L.: On the problems of dealing with bibliometric data (2014) 0.02
    0.020987704 = product of:
      0.04197541 = sum of:
        0.04197541 = product of:
          0.08395082 = sum of:
            0.08395082 = weight(_text_:22 in 1239) [ClassicSimilarity], result of:
              0.08395082 = score(doc=1239,freq=2.0), product of:
                0.18081884 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051635534 = queryNorm
                0.46428138 = fieldWeight in 1239, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1239)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    18. 3.2014 19:13:22
  2. Marx, W.; Bornmann, L.; Barth, A.; Leydesdorff, L.: Detecting the historical roots of research fields by reference publication year spectroscopy (RPYS) (2014) 0.02
    0.017259631 = product of:
      0.034519263 = sum of:
        0.034519263 = product of:
          0.069038525 = sum of:
            0.069038525 = weight(_text_:56 in 1238) [ClassicSimilarity], result of:
              0.069038525 = score(doc=1238,freq=2.0), product of:
                0.21469334 = queryWeight, product of:
                  4.1578603 = idf(docFreq=1879, maxDocs=44218)
                  0.051635534 = queryNorm
                0.32156807 = fieldWeight in 1238, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.1578603 = idf(docFreq=1879, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1238)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    18. 3.2014 18:56:54
  3. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.01
    0.013991804 = product of:
      0.027983608 = sum of:
        0.027983608 = product of:
          0.055967215 = sum of:
            0.055967215 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
              0.055967215 = score(doc=1431,freq=2.0), product of:
                0.18081884 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051635534 = queryNorm
                0.30952093 = fieldWeight in 1431, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1431)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 8.2014 17:05:18
  4. Bornmann, L.: How to analyze percentile citation impact data meaningfully in bibliometrics : the statistical analysis of distributions, percentile rank classes, and top-cited papers (2013) 0.01
    0.010493852 = product of:
      0.020987704 = sum of:
        0.020987704 = product of:
          0.04197541 = sum of:
            0.04197541 = weight(_text_:22 in 656) [ClassicSimilarity], result of:
              0.04197541 = score(doc=656,freq=2.0), product of:
                0.18081884 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051635534 = queryNorm
                0.23214069 = fieldWeight in 656, 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=656)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2013 19:44:17
  5. Leydesdorff, L.; Bornmann, L.; Wagner, C.S.: ¬The relative influences of government funding and international collaboration on citation impact (2019) 0.01
    0.010493852 = product of:
      0.020987704 = sum of:
        0.020987704 = product of:
          0.04197541 = sum of:
            0.04197541 = weight(_text_:22 in 4681) [ClassicSimilarity], result of:
              0.04197541 = score(doc=4681,freq=2.0), product of:
                0.18081884 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051635534 = 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
  6. 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
    0.008744878 = product of:
      0.017489756 = sum of:
        0.017489756 = product of:
          0.03497951 = sum of:
            0.03497951 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
              0.03497951 = score(doc=4186,freq=2.0), product of:
                0.18081884 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051635534 = 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