The Leiden ranking 2011/2012: Data collection, indicators, and interpretation
By Ludo Waltman, Clara Calero-Medina, Joost Kosten, Ed C. M. Noyons, Robert J. W. Tijssen, Nees Jan van Eck, T. V. Leeuwen, Anthony F. J. van Raan, Martijn S. Visser, Paul F. Wouters. J. Assoc. Inf. Sci. Technol., 2012
444 citations recorded by the source corpus.
The Leiden Ranking 2011/2012 is a ranking of universities based on bibliometric indicators of publication output, citation impact, and scientific collaboration. The ranking includes 500 major universities from 41 different countries. This paper provides an extensive discussion of the Leiden Ranking 2011/2012. The ranking is compared with other global university rankings, in particular the Academic Ranking of World Universities (commonly known as the Shanghai Ranking) and the Times Higher Education World University Rankings. The comparison focuses on the methodological choices underlying the different rankings. Also, a detailed description is offered of the data collection methodology of the Leiden Ranking 2011/2012 and of the indicators used in the ranking. Various innovations in the Leiden Ranking 2011/2012 are presented. These innovations include (1) an indicator based on counting a university's highly cited publications, (2) indicators based on fractional rather than full counting of collaborative publications, (3) the possibility of excluding non-English language publications, and (4) the use of stability intervals. Finally, some comments are made on the interpretation of the ranking and a number of limitations of the ranking are pointed out. © 2012 Wiley Periodicals, Inc.
Subfields: Political Science and International Relations, Statistics and Probability
View Paper: https://www.semanticscholar.org/paper/bb93006c63f823f0bf98bf17c0f4fa421f432728
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In Political Science and International Relations
- Ludo Waltman
- Loet Leydesdorff
- Anthony F. J. van Raan
- Inga A. Ivanova
- Elias G. Carayannis
- Evangelos Grigoroudis
In Statistics and Probability
- Ludo Waltman
- John C. Mingers
- Loet Leydesdorff
- Nees Jan van Eck
- Anthony F. J. van Raan
- Antonio Perianes-Rodríguez
- Raminta Pranckute
- Chaomei Chen
Citations in the corpus
- A review of theory and practice in scientometrics (2015, background): “Leiden also produces a ranking of world universities based on bibliometric methods that will be discussed elsewhere (Waltman et al., 2012).”
- Advances in bibliometric analysis: research performance assessment and science mapping (2014, background): “Methodological and technical problems have to be solved in order to conduct a bibliometric analysis properly [1].”
- A review of the literature on citation impact indicators (2015, methodology): “This is for instance observed by Aksnes and Sivertsen (2004) at the level of countries and by Waltman et al. (2012a) at the level of universities.”
- Constructing bibliometric networks: A comparison between full and fractional counting (2016, background): “28 million publications indexed in the Web of Science database that were published in 2014 and that are authored by one or more of the 750 universities included in the 2015 edition of the CWTS Leiden Ranking (www.leidenranking.com; Waltman et al., 2012).”