-
Egghe, L.; Rousseau, R.: ¬The Hirsch index of a shifted Lotka function and its relation with the impact factor (2012)
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- Abstract
- Based on earlier results about the shifted Lotka function, we prove an implicit functional relation between the Hirsch index (h-index) and the total number of sources (T). It is shown that the corresponding function, h(T), is concavely increasing. Next, we construct an implicit relation between the h-index and the impact factor IF (an average number of items per source). The corresponding function h(IF) is increasing and we show that if the parameter C in the numerator of the shifted Lotka function is high, then the relation between the h-index and the impact factor is almost linear.
- Object
- h-index
- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.5, S.1048-1053
-
Egghe, L.; Guns, R.; Rousseau, R.: Thoughts on uncitedness : Nobel laureates and Fields medalists as case studies (2011)
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- Abstract
- Contrary to what one might expect, Nobel laureates and Fields medalists have a rather large fraction (10% or more) of uncited publications. This is the case for (in total) 75 examined researchers from the fields of mathematics (Fields medalists), physics, chemistry, and physiology or medicine (Nobel laureates). We study several indicators for these researchers, including the h-index, total number of publications, average number of citations per publication, the number (and fraction) of uncited publications, and their interrelations. The most remarkable result is a positive correlation between the h-index and the number of uncited articles. We also present a Lotkaian model, which partially explains the empirically found regularities.
- Footnote
- Vgl.: Erratum. In: Journal of the American Society for Information Science and Technology. 63(2012) no.2, S.429.
- Source
- Journal of the American Society for Information Science and Technology. 62(2011) no.8, S.1637-1644
-
Rousseau, S.; Rousseau, R.: Metric-wiseness (2015)
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- Source
- Journal of the Association for Information Science and Technology. 66(2015) no.11, S.2389
-
Yan, S.; Rousseau, R.; Huang, S.: Contributions of chinese authors in PLOS ONE (2016)
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- Source
- Journal of the Association for Information Science and Technology. 67(2016) no.3, S.543-549
-
Rousseau, R.: Egghe's g-index is not a proper concentration measure (2015)
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- Source
- Journal of the Association for Information Science and Technology. 66(2015) no.7, S.1518-1519
-
Rousseau, S.; Rousseau, R.: Interactions between journal attributes and authors' willingness to wait for editorial decisions (2012)
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- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.6, S.1213-1225
-
Zhang, L.; Rousseau, R.; Glänzel, W.: Document-type country profiles (2011)
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- Source
- Journal of the American Society for Information Science and Technology. 62(2011) no.7, S.1403-1411
-
Liu, Y.; Rousseau, R.: Citation analysis and the development of science : a case study using articles by some Nobel prize winners (2014)
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- Source
- Journal of the Association for Information Science and Technology. 65(2014) no.2, S.281-289
-
Rousseau, R.; Egghe, L.; Guns, R.: Becoming metric-wise : a bibliometric guide for researchers (2018)
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- Footnote
- Rez. in: JASIST 70(2019) no.5, S.530-532 (I. Dorsch)
- Pages
- xv, 385 S
-
Hu, X.; Rousseau, R.; Chen, J.: ¬A new approach for measuring the value of patents based on structural indicators for ego patent citation networks (2012)
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- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.9, S.1834-1842
-
Liu, Y.; Rousseau, R.: Towards a representation of diffusion and interaction of scientific ideas : the case of fiber optics communication (2012)
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- Source
- Information processing and management. 48(2012) no.4, S.791-801
-
Rousseau, R.; Ding, J.: Does international collaboration yield a higher citation potential for US scientists publishing in highly visible interdisciplinary Journals? (2016)
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- Source
- Journal of the Association for Information Science and Technology. 67(2016) no.4, S.1009-1013
-
Colebunders, R.; Kenyon, C.; Rousseau, R.: Increase in numbers and proportions of review articles in Tropical Medicine, Infectious Diseases, and oncology (2014)
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- Source
- Journal of the Association for Information Science and Technology. 65(2014) no.1, S.201-205
-
Liu, Y.; Rousseau, R.: Interestingness and the essence of citation : Thomas Reid and bibliographic description (2013)
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- Source
- Journal of documentation. 69(2013) no.4, S.580-589
-
Shi, D.; Rousseau, R.; Yang, L.; Li, J.: ¬A journal's impact factor is influenced by changes in publication delays of citing journals (2017)
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- Journal of the Association for Information Science and Technology. 68(2017) no.3, S.780-789
-
Hu, X.; Rousseau, R.: Do citation chimeras exist? : The case of under-cited influential articles suffering delayed recognition (2019)
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- Journal of the Association for Information Science and Technology. 70(2019) no.5, S.499-508
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Liu, Y.; Rousseau, R.: Knowledge diffusion through publications and citations : a case study using ESI-fields as unit of diffusion (2010)
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- Journal of the American Society for Information Science and Technology. 61(2010) no.2, S.340-351
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Zhang, L.; Rousseau, R.; Glänzel, W.: Diversity of references as an indicator of the interdisciplinarity of journals : taking similarity between subject fields into account (2016)
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- Journal of the Association for Information Science and Technology. 67(2016) no.5, S.1257-1265
