Search (6 results, page 1 of 1)

  • × year_i:[2010 TO 2020}
  • × author_ss:"Leydesdorff, L."
  1. Shelton, R.D.; Leydesdorff, L.: Publish or patent : bibliometric evidence for empirical trade-offs in national funding strategies (2012) 0.01 
    0.011030916 = product of:
  0.03309275 = sum of:
    0.03309275 = product of:
      0.0661855 = sum of:
        0.0661855 = weight(_text_:publishing in 70) [ClassicSimilarity], result of:
          0.0661855 = score(doc=70,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.26989618 = fieldWeight in 70, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0390625 = fieldNorm(doc=70)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Abstract
    Multivariate linear regression models suggest a trade-off in allocations of national research and development (R&D). Government funding and spending in the higher education sector encourage publications as a long-term research benefit. Conversely, other components such as industrial funding and spending in the business sector encourage patenting. Our results help explain why the United States trails the European Union in publications: The focus in the United States is on industrial funding-some 70% of its total R&D investment. Likewise, our results also help explain why the European Union trails the United States in patenting, since its focus on government funding is less effective than industrial funding in predicting triadic patenting. Government funding contributes negatively to patenting in a multiple regression, and this relationship is significant in the case of triadic patenting. We provide new forecasts about the relationships of the United States, the European Union, and China for publishing; these results suggest much later dates for changes than previous forecasts because Chinese growth has been slowing down since 2003. Models for individual countries might be more successful than regression models whose parameters are averaged over a set of countries because nations can be expected to differ historically in terms of the institutional arrangements and funding schemes.
  2. Bauer, J.; Leydesdorff, L.; Bornmann, L.: Highly cited papers in Library and Information Science (LIS) : authors, institutions, and network structures (2016) 0.01 
    0.011030916 = product of:
  0.03309275 = sum of:
    0.03309275 = product of:
      0.0661855 = sum of:
        0.0661855 = weight(_text_:publishing in 3231) [ClassicSimilarity], result of:
          0.0661855 = score(doc=3231,freq=2.0), product of:
            0.24522576 = queryWeight, product of:
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.05019314 = queryNorm
            0.26989618 = fieldWeight in 3231, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.885643 = idf(docFreq=907, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3231)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Abstract
    As a follow-up to the highly cited authors list published by Thomson Reuters in June 2014, we analyzed the top 1% most frequently cited papers published between 2002 and 2012 included in the Web of Science (WoS) subject category "Information Science & Library Science." In all, 798 authors contributed to 305 top 1% publications; these authors were employed at 275 institutions. The authors at Harvard University contributed the largest number of papers, when the addresses are whole-number counted. However, Leiden University leads the ranking if fractional counting is used. Twenty-three of the 798 authors were also listed as most highly cited authors by Thomson Reuters in June 2014 (http://highlycited.com/). Twelve of these 23 authors were involved in publishing 4 or more of the 305 papers under study. Analysis of coauthorship relations among the 798 highly cited scientists shows that coauthorships are based on common interests in a specific topic. Three topics were important between 2002 and 2012: (a) collection and exploitation of information in clinical practices; (b) use of the Internet in public communication and commerce; and (c) scientometrics.
  3. Leydesdorff, L.; Bornmann, L.; Wagner, C.S.: ¬The relative influences of government funding and international collaboration on citation impact (2019) 0.01 
    0.0068004774 = product of:
  0.020401431 = sum of:
    0.020401431 = product of:
      0.040802862 = sum of:
        0.040802862 = weight(_text_:22 in 4681) [ClassicSimilarity], result of:
          0.040802862 = score(doc=4681,freq=2.0), product of:
            0.17576782 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05019314 = 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)
  0.33333334 = coord(1/3)
    Date
    8. 1.2019 18:22:45
  4. 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 
    0.0056670653 = product of:
  0.017001195 = sum of:
    0.017001195 = product of:
      0.03400239 = sum of:
        0.03400239 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
          0.03400239 = score(doc=4186,freq=2.0), product of:
            0.17576782 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05019314 = 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)
  0.33333334 = coord(1/3)
    Date
    22. 1.2011 12:51:07
  5. 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 
    0.0056670653 = product of:
  0.017001195 = sum of:
    0.017001195 = product of:
      0.03400239 = sum of:
        0.03400239 = weight(_text_:22 in 3089) [ClassicSimilarity], result of:
          0.03400239 = score(doc=3089,freq=2.0), product of:
            0.17576782 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05019314 = 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)
  0.33333334 = coord(1/3)
    Date
    24. 8.2016 17:53:22
  6. Leydesdorff, L.; Johnson, M.W.; Ivanova, I.: Toward a calculus of redundancy : signification, codification, and anticipation in cultural evolution (2018) 0.01 
    0.0056670653 = product of:
  0.017001195 = sum of:
    0.017001195 = product of:
      0.03400239 = sum of:
        0.03400239 = weight(_text_:22 in 4463) [ClassicSimilarity], result of:
          0.03400239 = score(doc=4463,freq=2.0), product of:
            0.17576782 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05019314 = 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)
  0.33333334 = coord(1/3)
    Date
    29. 9.2018 11:22:09

Authors

Themes