CWTS Leiden Ranking 2013
The CWTS Leiden Ranking 2013 measures the scientific performance of 500 major universities worldwide. Using a sophisticated set of bibliometric indicators, the ranking aims to provide highly accurate measurements of the scientific impact of universities and of universities’ involvement in scientific collaboration. The CWTS Leiden Ranking 2013 is based on Web of Science indexed publications from the period 2008–2011.
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The ranking is based on over 25 years of bibliometric experience at Leiden University's CWTS.
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The main power of the Leiden ranking is that it is solely based on scholarly impact. Clear. Straightforward.
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There are only a few rankings worldwide that are really important. The Leiden Ranking is one of those.
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The Leiden ranking is developed by some of the leading experts in the field and gives us a fundament of facts when trying to estimate the impact of our research.
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The Leiden ranking doesn't attempt to weigh different things in a single indicator. That's a big plus.
Differences with other university rankings
Compared with other university rankings, the Leiden Ranking offers more advanced indicators of scientific impact and collaboration and uses a more transparent methodology. The Leiden Ranking does not rely on highly subjective data obtained from reputational surveys or on data provided by universities themselves. Also, the Leiden Ranking refrains from aggregating different dimensions of university performance into a single overall indicator.
Improvements and new features
The CWTS Leiden Ranking 2013 includes a number of improvements and new features. In particular, the data collection methodology of the ranking has been extensively revised and statistics at the level of five broad fields of science have been added. New features include an indicator of university-industry collaboration and the possibility of excluding publications in special types of journals (e.g., non-international journals, trade journals, and popular magazines).
