Search (11 results, page 1 of 1)

  • × author_ss:"Bornmann, L."
  1. Bornmann, L.: On the function of university rankings (2014) 0.00
    0.0029910363 = product of:
      0.011964145 = sum of:
        0.011964145 = product of:
          0.059820727 = sum of:
            0.059820727 = weight(_text_:29 in 1188) [ClassicSimilarity], result of:
              0.059820727 = score(doc=1188,freq=2.0), product of:
                0.12826501 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03646288 = queryNorm
                0.46638384 = fieldWeight in 1188, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1188)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    29. 1.2014 16:55:03
  2. Marx, W.; Bornmann, L.: On the problems of dealing with bibliometric data (2014) 0.00
    0.0029641304 = product of:
      0.0118565215 = sum of:
        0.0118565215 = product of:
          0.059282605 = sum of:
            0.059282605 = weight(_text_:22 in 1239) [ClassicSimilarity], result of:
              0.059282605 = score(doc=1239,freq=2.0), product of:
                0.1276868 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03646288 = 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)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    18. 3.2014 19:13:22
  3. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.00
    0.0019760868 = product of:
      0.007904347 = sum of:
        0.007904347 = product of:
          0.039521735 = sum of:
            0.039521735 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
              0.039521735 = score(doc=1431,freq=2.0), product of:
                0.1276868 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03646288 = 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)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    22. 8.2014 17:05:18
  4. Bornmann, L.; Marx, W.: Distributions instead of single numbers : percentiles and beam plots for the assessment of single researchers (2014) 0.00
    0.0017447713 = product of:
      0.006979085 = sum of:
        0.006979085 = product of:
          0.034895424 = sum of:
            0.034895424 = weight(_text_:29 in 1190) [ClassicSimilarity], result of:
              0.034895424 = score(doc=1190,freq=2.0), product of:
                0.12826501 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03646288 = queryNorm
                0.27205724 = fieldWeight in 1190, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1190)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    29. 1.2014 15:58:21
  5. 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) 0.00
    0.0014820652 = product of:
      0.0059282607 = sum of:
        0.0059282607 = product of:
          0.029641302 = sum of:
            0.029641302 = weight(_text_:22 in 656) [ClassicSimilarity], result of:
              0.029641302 = score(doc=656,freq=2.0), product of:
                0.1276868 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03646288 = 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)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    22. 3.2013 19:44:17
  6. Leydesdorff, L.; Bornmann, L.; Wagner, C.S.: ¬The relative influences of government funding and international collaboration on citation impact (2019) 0.00
    0.0014820652 = product of:
      0.0059282607 = sum of:
        0.0059282607 = product of:
          0.029641302 = sum of:
            0.029641302 = weight(_text_:22 in 4681) [ClassicSimilarity], result of:
              0.029641302 = score(doc=4681,freq=2.0), product of:
                0.1276868 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03646288 = 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)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    8. 1.2019 18:22:45
  7. Marx, W.; Bornmann, L.; Cardona, M.: Reference standards and reference multipliers for the comparison of the citation impact of papers published in different time periods (2010) 0.00
    0.0012924419 = product of:
      0.0051697674 = sum of:
        0.0051697674 = product of:
          0.025848836 = sum of:
            0.025848836 = weight(_text_:28 in 3998) [ClassicSimilarity], result of:
              0.025848836 = score(doc=3998,freq=2.0), product of:
                0.13061963 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03646288 = queryNorm
                0.19789396 = fieldWeight in 3998, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3998)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    28. 9.2010 12:50:25
  8. Bornmann, L.; Mutz, R.; Daniel, H.-D.: Multilevel-statistical reformulation of citation-based university rankings : the Leiden ranking 2011/2012 (2013) 0.00
    0.0012924419 = product of:
      0.0051697674 = sum of:
        0.0051697674 = product of:
          0.025848836 = sum of:
            0.025848836 = weight(_text_:28 in 1007) [ClassicSimilarity], result of:
              0.025848836 = score(doc=1007,freq=2.0), product of:
                0.13061963 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03646288 = queryNorm
                0.19789396 = fieldWeight in 1007, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1007)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    28. 7.2013 13:35:46
  9. Bornmann, L.; Haunschild, R.: ¬An empirical look at the nature index (2017) 0.00
    0.0012924419 = product of:
      0.0051697674 = sum of:
        0.0051697674 = product of:
          0.025848836 = sum of:
            0.025848836 = weight(_text_:28 in 3432) [ClassicSimilarity], result of:
              0.025848836 = score(doc=3432,freq=2.0), product of:
                0.13061963 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03646288 = queryNorm
                0.19789396 = fieldWeight in 3432, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3432)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    16.11.2017 13:28:02
  10. Bornmann, L.; Schier, H.; Marx, W.; Daniel, H.-D.: Is interactive open access publishing able to identify high-impact submissions? : a study on the predictive validity of Atmospheric Chemistry and Physics by using percentile rank classes (2011) 0.00
    0.0012462653 = product of:
      0.004985061 = sum of:
        0.004985061 = product of:
          0.024925305 = sum of:
            0.024925305 = weight(_text_:29 in 4132) [ClassicSimilarity], result of:
              0.024925305 = score(doc=4132,freq=2.0), product of:
                0.12826501 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03646288 = queryNorm
                0.19432661 = fieldWeight in 4132, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4132)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    8. 1.2011 18:29:40
  11. 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) 0.00
    0.0012350543 = product of:
      0.0049402174 = sum of:
        0.0049402174 = product of:
          0.024701087 = sum of:
            0.024701087 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
              0.024701087 = score(doc=4186,freq=2.0), product of:
                0.1276868 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03646288 = 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)
          0.2 = coord(1/5)
      0.25 = coord(1/4)
    
    Date
    22. 1.2011 12:51:07