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cs.LG2025
Sampling, Diffusions, and Stochastic Localization
Andrea Montanari
Diffusions are a successful technique to sample from high-dimensional distributions. The target distribution can be either explicitly given or learnt from a collection of samples.…
cs.LG2025
Learning time-scales in two-layers neural networks
Raphaël Berthier, Andrea Montanari, Kangjie Zhou
Gradient-based learning in multi-layer neural networks displays a number of striking features. In particular, the decrease rate of empirical risk is non-monotone even after averagi…