UNIST has maintained its position as the top university in South Korea, according to the latest Centre for Science and Technology Studies (CWTS) Leiden Ranking, released on May 17, 2018.
This is the second consecutive year that UNIST has been crowned the top university in South Korea. The ranking has placed UNIST 52nd in the world, making it the only Korean university to be included in the top 100.
The Leiden Ranking is published by the Centre for Science and Technology Studies (CWTS) at Leiden University in the Netherlands and is based entirely on data provided by the Web of Science now run by Clarivate Analytics. The ranking evaluates universities on the impact of research conducted by their scientists, as well as their involvement in scientific collaboration. It focuses strictly on citation impact, using a methodology that accounts for differences between scientific fields in citation and collaboration practices.
This year’s CWTS Leiden Ranking judged the top 938 universities worldwide. A total of 55 countries made the list. These universities are the ones that have produced at least 1,000 Web of Science indexed publications in the period 2013–2016. The CWTS Leiden World Rankings situates its emphasis primarily on scientific merit measured through citation impact and research excellence. Therefore, the ‘Proportion of publication in the top 10% of the most frequently cited publications’ is an important criterion in this ranking.
In terms of the number and the proportion of scientific publications that, compared with other publications in the same field and in the same year, belong to the top 10% most frequently cited, UNIST (15.2%) was ranked as the nation’s top university by 2018 CWTS Leiden Ranking. This result was based on the Fractional Counting method and it was higher than those of POSTECH (11.3%), KAIST (11%), Seoul National Univesity (7.9%), and the University of Ulsan (7.5%).
The impact indicators in the Leiden Ranking can be calculated using either a full counting or a fractional counting method. The full counting method gives a full weight of one to each publication of a university. The fractional counting method gives less weight to collaborative publications than to non-collaborative ones.
When they measured the rankings using the Full Counting method, UNIST has still remained strong at 52nd among the best universities in the world. The Rockefeller University (31.5%) has kept its coveted ranking as the world’s top university, with MIT (25.1%) in second place, Princeton University (22.5%) in third place, and Standford University (22.4%) coming in fourth.
“We are pleased to be recognized once again as Korea’s leading university,” says Professor In Cheol Bang, Dean of Planning and Research. “This is largely due to the brilliance of our students and the dedication of our outstandng faculty and researchers.”
“I am greatful to our outstanding faculty and researchers, and our talented students, for their excellent efforts,” says President Mooyoung Jung of UNIST. “We will strive to ensure that UNIST’s education and research remains strong.”