Seminars & Colloquia Calendar
Webinar: Andrea Montanari - Overparameterized Systems: From Smale 17th problem to neutral networks
Location: Zoom
Date & time: Wednesday, 08 October 2025 at 10:45AM - 12:00PM
Andrea Montanari – Stanford University
Wednesday, October 8th, 2025
Zoom opens: 10:30AM DST
Seminar begins: 10:45AM DST
Overparameterized Systems: From Smale 17th problem to neutral networks
Spin glass theory studies the structure of sublevel sets and minima (or near-minima) of certain classes of random functions in high dimension. Near-minima of random functions also play an important role in
high-dimensional statistics and machine learning, where minimizing an empirical risk function is the method of choice for learning a statistical model from noisy data.
I will review some surprising empirical phenomena in modern machine learning, focusing in particular on overfitting and generalization. I will explain how tools from spin glasses and random matrix theory can be used to characterize these phenomena in simple models, and clarify them.
[Based on joint works with Kiana Asgari, Basil Saeed, Eliran Subag, Pierfrancesco Urbani]
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