# Strong freezing of the binary perceptron model

## Location

Sequoia 200

Monday, September 26, 2022 4:00 PM

Shuangping Li (Stanford Statistics)

We consider the binary perceptron model, a simple model of neural networks that has gathered significant attention in the statistical physics, information theory, and probability theory communities. We show that at low constraint density (m=n^{1-epsilon}), the model exhibits a strong freezing phenomenon with high probability, i.e., most solutions are isolated. We prove it by a refined analysis of the log partition function. Our proof technique relies on a second moment method and cluster expansions.

This talk is based on joint work with Allan Sly.