The classification released by the National Taiwan University uses bibliometric methods (i.e, the number of scientific articles and received citations), to compare the best 800 universities in the world.
In the 2021 edition, the University of Pisa is placed 227th internationally and 7th in Italy.
Beyond global rankings, NTU also provides a classification for 6 specific fields (NTU by Field), and one for 24 selected subjects (NTU by Subject).
The University of Pisa, among the Italian universities, is placed 5th in the NTU by Field for "Natural Sciences", and 8th for "Agriculture", while in the NTU by Subject it is placed 2nd for "Physics", 12th for "Agricultural Science" and 6th for "Space Science".
| Subject | Ranking |
|---|---|
| Physics | 62 (2nd ITA) |
| Space Science | 106 (7th ITA) |
| Plant & Animal Science | 116 (5th ITA) |
| Agricultural Sciences | 133 (12th ITA) |