Final year DPhil student Álvaro Arroyo (2021, Engineering) was named runner up in the G-Research 2025 PhD prize.

G-Research, a leading quantitative research and technology firm, facilitates a number of PhD prizes in Maths and Data Science with several academic institutions including the University of Oxford.

The prize is open to final or penultimate year PhD students at specific universities, working across areas including Machine Learning, Quantitative Finance and Mathematics.

Álvaro completed his DPhil in Machine Learning at Oxford, carrying out research focused on developing methods to better leverage structured data, including time series and graph-structured information. Much of Álvaro’s recent work explores how ideas from graph learning can be ported into attention-based models, which underpin modern large language models. Since graduating, Álvaro has joined Tower Research Capital as a Quantitative Researcher.

George Deligiannidis, Professor of Statistics and Director of MSc in Statistical Science said: “All shortlisted candidates were of excellent calibre, spanning a range of topics from algebra to machine learning, and all demonstrating excellent potential as evidenced by the breadth and depth of their submissions.”

Álvaro said: “Winning the prize was a tremendous honour; it’s very rewarding to see years of research recognised in this way. Univ and Oxford provided an exceptional environment to pursue ambitious ideas, and I’m deeply grateful for the mentorship and support I received throughout my DPhil.”

You can learn more about postgraduate study at Univ here.

You can read about our other University and College Prize Winners in the 2025 University College Record here.

Published: 10 December 2025

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