In the 2016 edition of the CWTS Leiden Ranking, we aim to move beyond just ranking. The Leiden Ranking can now be explored from three different perspectives. In addition to the traditional list view, where universities are presented in a list ordered based on a selected indicator, the Leiden Ranking 2016 offers two new perspectives, the chart view and the map view. The chart view presents universities in a scatter plot, enabling two selected indicators to be compared. The map view presents universities in an interactive geographical map.
To emphasize the importance of taking a multidimensional perspective on the Leiden Ranking, in the 2016 edition universities are by default ordered based on the size of their publication output. To create a ranking based on an impact or collaboration indicator, you need to explicitly select the indicator based on which you want universities to be ranked. Also, in the 2016 edition of the Leiden Ranking, size-dependent and size-independent indicators (e.g., the number and the percentage of highly cited publications) are presented together, highlighting that both types of indicators need to be taken into account.
Compared with other university rankings, the CWTS 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.
More information on the improvements made in the 2016 edition of the CWTS Leiden Ranking is available in this blog post.
The CWTS Leiden Ranking 2016 includes 842 universities from 53 different countries. The Leiden Ranking is based on Web of Science data. All universities worldwide with more than 1000 fractionally counted Web of Science indexed core publications in the period 2011–2014 are included in the ranking. For more information on the selection of the universities, please read this blog post.