Search (14 results, page 1 of 1)

  • × author_ss:"Gingras, Y."
  1. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.00
    0.0026156146 = product of:
      0.039234217 = sum of:
        0.039234217 = sum of:
          0.005919926 = weight(_text_:information in 2763) [ClassicSimilarity], result of:
            0.005919926 = score(doc=2763,freq=2.0), product of:
              0.050870337 = queryWeight, product of:
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.028978055 = queryNorm
              0.116372846 = fieldWeight in 2763, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.046875 = fieldNorm(doc=2763)
          0.03331429 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
            0.03331429 = score(doc=2763,freq=4.0), product of:
              0.101476215 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.028978055 = queryNorm
              0.32829654 = fieldWeight in 2763, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046875 = fieldNorm(doc=2763)
      0.06666667 = coord(1/15)
    
    Date
    22. 3.2009 19:22:35
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.858-862
  2. Archambault, E.; Campbell, D; Gingras, Y.; Larivière, V.: Comparing bibliometric statistics obtained from the Web of Science and Scopus (2009) 0.00
    2.3255666E-4 = product of:
      0.0034883497 = sum of:
        0.0034883497 = product of:
          0.0069766995 = sum of:
            0.0069766995 = weight(_text_:information in 2933) [ClassicSimilarity], result of:
              0.0069766995 = score(doc=2933,freq=4.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.13714671 = fieldWeight in 2933, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2933)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Abstract
    For more than 40 years, the Institute for Scientific Information (ISI, now part of Thomson Reuters) produced the only available bibliographic databases from which bibliometricians could compile large-scale bibliometric indicators. ISI's citation indexes, now regrouped under the Web of Science (WoS), were the major sources of bibliometric data until 2004, when Scopus was launched by the publisher Reed Elsevier. For those who perform bibliometric analyses and comparisons of countries or institutions, the existence of these two major databases raises the important question of the comparability and stability of statistics obtained from different data sources. This paper uses macrolevel bibliometric indicators to compare results obtained from the WoS and Scopus. It shows that the correlations between the measures obtained with both databases for the number of papers and the number of citations received by countries, as well as for their ranks, are extremely high. There is also a very high correlation when countries' papers are broken down by field. The paper thus provides evidence that indicators of scientific production and citations at the country level are stable and largely independent of the database.
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.7, S.1320-1326
  3. Larivière, V.; Gingras, Y.: ¬The impact factor's Matthew Effect : a natural experiment in bibliometrics (2010) 0.00
    1.9733087E-4 = product of:
      0.002959963 = sum of:
        0.002959963 = product of:
          0.005919926 = sum of:
            0.005919926 = weight(_text_:information in 3338) [ClassicSimilarity], result of:
              0.005919926 = score(doc=3338,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.116372846 = fieldWeight in 3338, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3338)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.2, S.424-427
  4. Larivière, V.; Gingras, Y.; Sugimoto, C.R.; Tsou, A.: Team size matters : collaboration and scientific impact since 1900 (2015) 0.00
    1.9733087E-4 = product of:
      0.002959963 = sum of:
        0.002959963 = product of:
          0.005919926 = sum of:
            0.005919926 = weight(_text_:information in 2035) [ClassicSimilarity], result of:
              0.005919926 = score(doc=2035,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.116372846 = fieldWeight in 2035, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2035)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.7, S.1323-1332
  5. Bertin, M.; Atanassova, I.; Gingras, Y.; Larivière, V.: ¬The invariant distribution of references in scientific articles (2016) 0.00
    1.9733087E-4 = product of:
      0.002959963 = sum of:
        0.002959963 = product of:
          0.005919926 = sum of:
            0.005919926 = weight(_text_:information in 2497) [ClassicSimilarity], result of:
              0.005919926 = score(doc=2497,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.116372846 = fieldWeight in 2497, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2497)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the Association for Information Science and Technology. 67(2016) no.1, S.164-177
  6. Larivière, V.; Archambault, V.; Gingras, Y.; Vignola-Gagné, E.: ¬The place of serials in referencing practices : comparing natural sciences and engineering with social sciences and humanities (2006) 0.00
    1.6444239E-4 = product of:
      0.0024666358 = sum of:
        0.0024666358 = product of:
          0.0049332716 = sum of:
            0.0049332716 = weight(_text_:information in 5107) [ClassicSimilarity], result of:
              0.0049332716 = score(doc=5107,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.09697737 = fieldWeight in 5107, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5107)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.8, S.997-1004
  7. Larivière, V.; Archambault, E.; Gingras, Y.: Long-term variations in the aging of scientific literature : from exponential growth to steady-state science (1900-2004) (2008) 0.00
    1.6444239E-4 = product of:
      0.0024666358 = sum of:
        0.0024666358 = product of:
          0.0049332716 = sum of:
            0.0049332716 = weight(_text_:information in 1357) [ClassicSimilarity], result of:
              0.0049332716 = score(doc=1357,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.09697737 = fieldWeight in 1357, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1357)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science and Technology. 59(2008) no.2, S.288-296
  8. Wallace, M.L.; Gingras, Y.; Duhon, R.: ¬A new approach for detecting scientific specialties from raw cocitation networks (2009) 0.00
    1.6444239E-4 = product of:
      0.0024666358 = sum of:
        0.0024666358 = product of:
          0.0049332716 = sum of:
            0.0049332716 = weight(_text_:information in 2709) [ClassicSimilarity], result of:
              0.0049332716 = score(doc=2709,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.09697737 = fieldWeight in 2709, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2709)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.2, S.240-246
  9. Larivière, V.; Gingras, Y.: On the relationship between interdisciplinarity and scientific impact (2009) 0.00
    1.6444239E-4 = product of:
      0.0024666358 = sum of:
        0.0024666358 = product of:
          0.0049332716 = sum of:
            0.0049332716 = weight(_text_:information in 3316) [ClassicSimilarity], result of:
              0.0049332716 = score(doc=3316,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.09697737 = fieldWeight in 3316, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3316)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.1, S.126-131
  10. Larivière, V.; Gingras, Y.: On the prevalence and scientific impact of duplicate publications in different scientific fields (1980-2007) (2010) 0.00
    1.6444239E-4 = product of:
      0.0024666358 = sum of:
        0.0024666358 = product of:
          0.0049332716 = sum of:
            0.0049332716 = weight(_text_:information in 3622) [ClassicSimilarity], result of:
              0.0049332716 = score(doc=3622,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.09697737 = fieldWeight in 3622, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3622)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Abstract
    Purpose - The issue of duplicate publications has received a lot of attention in the medical literature, but much less in the information science community. This paper aims to analyze the prevalence and scientific impact of duplicate publications across all fields of research between 1980 and 2007. Design/methodology/approach - The approach is a bibliometric analysis of duplicate papers based on their metadata. Duplicate papers are defined as papers published in two different journals having: the exact same title; the same first author; and the same number of cited references. Findings - In all fields combined, the prevalence of duplicates is one out of 2,000 papers, but is higher in the natural and medical sciences than in the social sciences and humanities. A very high proportion (>85 percent) of these papers are published the same year or one year apart, which suggest that most duplicate papers were submitted simultaneously. Furthermore, duplicate papers are generally published in journals with impact factors below the average of their field and obtain lower citations. Originality/value - The paper provides clear evidence that the prevalence of duplicate papers is low and, more importantly, that the scientific impact of such papers is below average.
  11. Kirchik, O.; Gingras, Y.; Larivière, V.: Changes in publication languages and citation practices and their effect on the scientific impact of Russian science (1993-2010) (2012) 0.00
    1.6444239E-4 = product of:
      0.0024666358 = sum of:
        0.0024666358 = product of:
          0.0049332716 = sum of:
            0.0049332716 = weight(_text_:information in 284) [ClassicSimilarity], result of:
              0.0049332716 = score(doc=284,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.09697737 = fieldWeight in 284, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=284)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.7, S.1411-1419
  12. Lozano, G.A.; Larivière, V.; Gingras, Y.: ¬The weakening relationship between the impact factor and papers' citations in the digital age (2012) 0.00
    1.6444239E-4 = product of:
      0.0024666358 = sum of:
        0.0024666358 = product of:
          0.0049332716 = sum of:
            0.0049332716 = weight(_text_:information in 486) [ClassicSimilarity], result of:
              0.0049332716 = score(doc=486,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.09697737 = fieldWeight in 486, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=486)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.11, S.2140-2145
  13. Larivière, V.; Lozano, G.A.; Gingras, Y.: Are elite journals declining? (2014) 0.00
    1.6444239E-4 = product of:
      0.0024666358 = sum of:
        0.0024666358 = product of:
          0.0049332716 = sum of:
            0.0049332716 = weight(_text_:information in 1228) [ClassicSimilarity], result of:
              0.0049332716 = score(doc=1228,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.09697737 = fieldWeight in 1228, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1228)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.4, S.649-655
  14. Gingras, Y.: Bibliometrics and research evaluation : uses and abuses (2016) 0.00
    1.3155391E-4 = product of:
      0.0019733086 = sum of:
        0.0019733086 = product of:
          0.0039466172 = sum of:
            0.0039466172 = weight(_text_:information in 3805) [ClassicSimilarity], result of:
              0.0039466172 = score(doc=3805,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.0775819 = fieldWeight in 3805, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3805)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Series
    History and foundations of information science