Contact me at matteo.negri@uniroma1.it
Senior Post-Doc at Università di Roma Sapienza
PhD in Physics at Politecnico di Torino
Master's Degree in Physics at Università degli studi di Milano
I am part of the Chimera Group in the physics department of University of Rome Sapienza.
My office is in the Fermi building, ground floor, room 002 (behind the reception).
My main focus is finding strategies to optimize highly non-convex problems that arise in data science and biophysics.
My recent works focus on inferring the structure of data with unsupervised neural networks, trying to simplfy modern architertures to understand deep learning with a physicist's perspective. In particular, we found that simple Hopfield networks can recognise examples from a test dataset by exploiting the spurious mixtues in the energy landscape.
During my PhD I also studied local-entropy-based algorithms to train neural networks, which find rare solutions with better generalization properties. I applied the same kind of algorithms to characterize pre-biotic proteins and possible connections with the neutral theory of evolution.
You can find more here.
Here is a 5-minutes presentation of my recent work on Hopfield networks.
I firmly believe in the social role of science and scientists, but I am invested in science popularization also because I really enjoy it. Recently I’ve been involved in initiatives for high-school students organized by my university and in some history-of-physics lectures for adults organized by a book store. This year I will participate to the FameLab competition, which also includes training sessions for the participants. You can find more here (mostly in italian).