arXiv Machine Learning By Erin George, Rayan Saab

Generalization behavior of OPTQ and the role of regularization

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The paper investigates the generalization behavior of the OPTQ quantization algorithm and its stochastic variant. It derives bounds on the expected squared error when a test point is drawn from a fixed distribution, linking this error to the calibration dataset and to the regularization parameter λ. The authors use these theoretical insights to propose a new recommendation for choosing λ, which shows improved performance in experiments compared to previous suggestions.

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arXiv AI
Sep 24

Path Regularization: A Near-Complete and Optimal Nonasymptotic Generalization Theory for Multilayer Neural Networks and Double Descent Phenomenon

The paper presents a near-complete, nonasymptotic generalization theory for multilayer neural networks using path regularization, applicable to broad Lipschitz loss functions without requiring bounded loss or extreme network hyperparameters. It provides an explicit upper bound that addresses approximation rates in generalized Barron spaces and demonstrates the double descent phenomenon for ReLU networks. The authors claim near-minimax optimality for regression problems and plan to establish matching lower bounds in future work.

By Hao Yu