Instituto Superior Técnico

Núcleo de Estudos e Projectos

CWTS Leiden Ranking

The CWTS Leiden ranking seeks to measure the scientific performance of  750 large universities worldwide. It is a bibliometric ranking based on indexed publications on the Thomson Reuters WoS database (Science Citation Index Expanded, Social Sciences Citation Index, and Arts & Humanities Citation Index).

The table below allows us to observe the evolution of the  ULisboa in the Leiden Ranking, in the  “Impact” indicator. In this ranking, the periods of reference for each year correspond to  X-2:X-5, where the Universidade Técnica de Lisboa/Universidade de Lisboa (UL) merger appears from 2016.

Table 1: Evolution of the ULisboa’s performance per subject in indicator “Impact”.

Subject Region 2014* 2015 2016 2017 2018 2019 2020
Physical Sciences & Engineering Portugal 5 2 1 1 1 1 1
Europe 181 149 11 12 15  16 17
World 428 330 75 82 93  100 100
Mathematics & Computer Science Portugal 5 5 1 1 1 1 1
Europe 181 19 6 5 6 6 16
World 428 463 44 50 62 69 93

* In 2014 the two subject fields were aggregated. The table above shows the same rank for easy-reading purposes.