Search (61 results, page 1 of 4)

  • × author_ss:"Bornmann, L."
  1. Bornmann, L.: On the function of university rankings (2014) 0.02
    0.018830704 = product of:
      0.028246054 = sum of:
        0.006291794 = weight(_text_:s in 1188) [ClassicSimilarity], result of:
          0.006291794 = score(doc=1188,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 1188, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1188)
        0.02195426 = product of:
          0.06586278 = sum of:
            0.06586278 = weight(_text_:29 in 1188) [ClassicSimilarity], result of:
              0.06586278 = score(doc=1188,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = 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)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 1.2014 16:55:03
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.2, S.428-429
  2. Marx, W.; Bornmann, L.: On the problems of dealing with bibliometric data (2014) 0.02
    0.018699042 = product of:
      0.028048562 = sum of:
        0.006291794 = weight(_text_:s in 1239) [ClassicSimilarity], result of:
          0.006291794 = score(doc=1239,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 1239, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1239)
        0.021756768 = product of:
          0.065270305 = sum of:
            0.065270305 = weight(_text_:22 in 1239) [ClassicSimilarity], result of:
              0.065270305 = score(doc=1239,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    18. 3.2014 19:13:22
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.4, S.866-867
  3. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.01
    0.012466028 = product of:
      0.018699042 = sum of:
        0.0041945297 = weight(_text_:s in 1431) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=1431,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.09609913 = fieldWeight in 1431, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=1431)
        0.014504513 = product of:
          0.043513536 = sum of:
            0.043513536 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
              0.043513536 = score(doc=1431,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    22. 8.2014 17:05:18
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.9, S.1939-1943
  4. Bornmann, L.; Marx, W.: Distributions instead of single numbers : percentiles and beam plots for the assessment of single researchers (2014) 0.01
    0.010984577 = product of:
      0.016476866 = sum of:
        0.0036702133 = weight(_text_:s in 1190) [ClassicSimilarity], result of:
          0.0036702133 = score(doc=1190,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.08408674 = fieldWeight in 1190, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1190)
        0.012806652 = product of:
          0.038419954 = sum of:
            0.038419954 = weight(_text_:29 in 1190) [ClassicSimilarity], result of:
              0.038419954 = score(doc=1190,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = 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)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 1.2014 15:58:21
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.1, S.206-208
  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) 0.01
    0.009349521 = product of:
      0.014024281 = sum of:
        0.003145897 = weight(_text_:s in 656) [ClassicSimilarity], result of:
          0.003145897 = score(doc=656,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.072074346 = fieldWeight in 656, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046875 = fieldNorm(doc=656)
        0.010878384 = product of:
          0.032635152 = sum of:
            0.032635152 = weight(_text_:22 in 656) [ClassicSimilarity], result of:
              0.032635152 = score(doc=656,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    22. 3.2013 19:44:17
    Source
    Journal of the American Society for Information Science and Technology. 64(2013) no.3, S.587-595
  6. Leydesdorff, L.; Bornmann, L.; Wagner, C.S.: ¬The relative influences of government funding and international collaboration on citation impact (2019) 0.01
    0.009349521 = product of:
      0.014024281 = sum of:
        0.003145897 = weight(_text_:s in 4681) [ClassicSimilarity], result of:
          0.003145897 = score(doc=4681,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.072074346 = fieldWeight in 4681, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046875 = fieldNorm(doc=4681)
        0.010878384 = product of:
          0.032635152 = sum of:
            0.032635152 = weight(_text_:22 in 4681) [ClassicSimilarity], result of:
              0.032635152 = score(doc=4681,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    8. 1.2019 18:22:45
    Source
    Journal of the Association for Information Science and Technology. 70(2019) no.2, S.198-201
  7. 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) 0.01
    0.007846127 = product of:
      0.01176919 = sum of:
        0.002621581 = weight(_text_:s in 4132) [ClassicSimilarity], result of:
          0.002621581 = score(doc=4132,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.060061958 = fieldWeight in 4132, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4132)
        0.00914761 = product of:
          0.027442828 = sum of:
            0.027442828 = weight(_text_:29 in 4132) [ClassicSimilarity], result of:
              0.027442828 = score(doc=4132,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = 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)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    8. 1.2011 18:29:40
    Source
    Journal of the American Society for Information Science and Technology. 62(2011) no.1, S.61-71
  8. 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
    0.0077912677 = product of:
      0.011686902 = sum of:
        0.002621581 = weight(_text_:s in 4186) [ClassicSimilarity], result of:
          0.002621581 = score(doc=4186,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.060061958 = fieldWeight in 4186, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4186)
        0.009065321 = product of:
          0.02719596 = sum of:
            0.02719596 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
              0.02719596 = score(doc=4186,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    22. 1.2011 12:51:07
    Source
    Journal of the American Society for Information Science and Technology. 62(2011) no.2, S.217-229
  9. Bornmann, L.: Nature's top 100 revisited (2015) 0.00
    0.0024716503 = product of:
      0.0074149505 = sum of:
        0.0074149505 = weight(_text_:s in 2351) [ClassicSimilarity], result of:
          0.0074149505 = score(doc=2351,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.16988087 = fieldWeight in 2351, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=2351)
      0.33333334 = coord(1/3)
    
    Content
    Bezug: Journal of the Association for Information Science and Technology. 66(2015) no.12, S.2714. Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23554/abstract.
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.10, S.2166
  10. Collins, H.; Bornmann, L.: On scientific misconduct (2014) 0.00
    0.0024468089 = product of:
      0.0073404266 = sum of:
        0.0073404266 = weight(_text_:s in 1247) [ClassicSimilarity], result of:
          0.0073404266 = score(doc=1247,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.16817348 = fieldWeight in 1247, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.109375 = fieldNorm(doc=1247)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.5, S.1089-1090
  11. Bornmann, L.: Scientific peer review (2011) 0.00
    0.0024468089 = product of:
      0.0073404266 = sum of:
        0.0073404266 = weight(_text_:s in 1600) [ClassicSimilarity], result of:
          0.0073404266 = score(doc=1600,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.16817348 = fieldWeight in 1600, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.109375 = fieldNorm(doc=1600)
      0.33333334 = coord(1/3)
    
    Source
    Annual review of information science and technology. 45(2011) no.1, S.197-245
  12. Bornmann, L.; Leydesdorff, L.: Statistical tests and research assessments : a comment on Schneider (2012) (2013) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 752) [ClassicSimilarity], result of:
          0.006291794 = score(doc=752,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 752, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=752)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the American Society for Information Science and Technology. 64(2013) no.6, S.1306-1308
  13. Bornmann, L.: Is there currently a scientific revolution in Scientometrics? (2014) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 1206) [ClassicSimilarity], result of:
          0.006291794 = score(doc=1206,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 1206, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1206)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.3, S.647-648
  14. Bornmann, L.: ¬The reception of publications by scientists in the early days of modern science (2014) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 1509) [ClassicSimilarity], result of:
          0.006291794 = score(doc=1509,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 1509, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1509)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.10, S.2160-2161
  15. Bornmann, L.; Bauer, J.; Haunschild, R.: Distribution of women and men among highly cited scientists (2015) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 2349) [ClassicSimilarity], result of:
          0.006291794 = score(doc=2349,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 2349, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=2349)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.12, S.2715-2716
  16. Bornmann, L.: What do altmetrics counts mean? : a plea for content analyses (2016) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 2858) [ClassicSimilarity], result of:
          0.006291794 = score(doc=2858,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 2858, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=2858)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 67(2016) no.4, S.1016-1017
  17. Besselaar, P. van den; Wagner, C,; Bornmann, L.: Correct assumptions? (2016) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 3020) [ClassicSimilarity], result of:
          0.006291794 = score(doc=3020,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 3020, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=3020)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 67(2016) no.7, S.1779
  18. Leydesdorff, L.; Wagner, C,; Bornmann, L.: Replicability and the public/private divide (2016) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 3023) [ClassicSimilarity], result of:
          0.006291794 = score(doc=3023,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 3023, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=3023)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 67(2016) no.7, S.1777-1778
  19. Bornmann, L.: Complex tasks and simple solutions : the use of heuristics in the evaluation of research (2015) 0.00
    0.0017477208 = product of:
      0.005243162 = sum of:
        0.005243162 = weight(_text_:s in 8911) [ClassicSimilarity], result of:
          0.005243162 = score(doc=8911,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.120123915 = fieldWeight in 8911, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=8911)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.8, S.1738-1739
  20. Bornmann, L.; Bauer, J.: Which of the world's institutions employ the most highly cited researchers : an analysis of the data from highlycited.com (2015) 0.00
    0.0013981767 = product of:
      0.0041945297 = sum of:
        0.0041945297 = weight(_text_:s in 1556) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=1556,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.09609913 = fieldWeight in 1556, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=1556)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.10, S.2146-2148