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PAC-Bayes learning is an established framework to both assess the generalisation ability of learning algorithms, and design new learning algorithm by exploiting generalisation bounds as training objectives. Most of the exisiting bounds…

机器学习 · 统计学 2023-05-31 Maxime Haddouche , Benjamin Guedj

Deep learning methods are known to generalize well from training to future data, even in an overparametrized regime, where they could easily overfit. One explanation for this phenomenon is that even when their *ambient dimensionality*,…

机器学习 · 计算机科学 2025-05-22 Hossein Zakerinia , Dorsa Ghobadi , Christoph H. Lampert

This paper analyzes the convergence and generalization of training a one-hidden-layer neural network when the input features follow the Gaussian mixture model consisting of a finite number of Gaussian distributions. Assuming the labels are…

机器学习 · 计算机科学 2023-01-30 Hongkang Li , Shuai Zhang , Meng Wang

We study the distribution of a fully connected neural network with random Gaussian weights and biases in which the hidden layer widths are proportional to a large constant $n$. Under mild assumptions on the non-linearity, we obtain…

机器学习 · 计算机科学 2024-06-18 Stefano Favaro , Boris Hanin , Domenico Marinucci , Ivan Nourdin , Giovanni Peccati

In this paper, we study the generalization performance of min $\ell_2$-norm overfitting solutions for the neural tangent kernel (NTK) model of a two-layer neural network with ReLU activation that has no bias term. We show that, depending on…

机器学习 · 计算机科学 2023-03-09 Peizhong Ju , Xiaojun Lin , Ness B. Shroff

Generalization bounds which assess the difference between the true risk and the empirical risk, have been studied extensively. However, to obtain bounds, current techniques use strict assumptions such as a uniformly bounded or a Lipschitz…

机器学习 · 计算机科学 2022-11-03 Itai Gat , Yossi Adi , Alexander Schwing , Tamir Hazan

We derive a novel information-theoretic analysis of the generalization property of meta-learning algorithms. Concretely, our analysis proposes a generic understanding of both the conventional learning-to-learn framework and the modern…

机器学习 · 计算机科学 2021-12-13 Qi Chen , Changjian Shui , Mario Marchand

This paper follows up on a recent work of Neu et al. (2021) and presents some new information-theoretic upper bounds for the generalization error of machine learning models, such as neural networks, trained with SGD. We apply these bounds…

机器学习 · 计算机科学 2022-03-22 Ziqiao Wang , Yongyi Mao

Considering a probability distribution over parameters is known as an efficient strategy to learn a neural network with non-differentiable activation functions. We study the expectation of a probabilistic neural network as a predictor by…

机器学习 · 计算机科学 2023-04-17 Louis Fortier-Dubois , Gaël Letarte , Benjamin Leblanc , François Laviolette , Pascal Germain

Implicit deep learning has received increasing attention recently due to the fact that it generalizes the recursive prediction rules of many commonly used neural network architectures. Its prediction rule is provided implicitly based on the…

机器学习 · 计算机科学 2022-02-21 Tianxiang Gao , Hailiang Liu , Jia Liu , Hridesh Rajan , Hongyang Gao

We propose a novel method for closed-form predictive distribution modeling with neural nets. In quantifying prediction uncertainty, we build on Evidential Deep Learning, which has been impactful as being both simple to implement and giving…

机器学习 · 统计学 2021-01-22 Manuel Haussmann , Sebastian Gerwinn , Melih Kandemir

When applied to the non-linear matter distribution of the universe, neural networks have been shown to be very statistically sensitive probes of cosmological parameters, such as the linear perturbation amplitude $\sigma_8$. However, when…

宇宙学与河外天体物理 · 物理学 2023-03-29 Utkarsh Giri , Moritz Münchmeyer , Kendrick M. Smith

In this paper, we study the compression of a target two-layer neural network with N nodes into a compressed network with M<N nodes. More precisely, we consider the setting in which the weights of the target network are i.i.d. sub-Gaussian,…

信息论 · 计算机科学 2022-08-17 Mohammad Hossein Amani , Simone Bombari , Marco Mondelli , Rattana Pukdee , Stefano Rini

While there has been progress in developing non-vacuous generalization bounds for deep neural networks, these bounds tend to be uninformative about why deep learning works. In this paper, we develop a compression approach based on…

机器学习 · 计算机科学 2022-11-28 Sanae Lotfi , Marc Finzi , Sanyam Kapoor , Andres Potapczynski , Micah Goldblum , Andrew Gordon Wilson

Recent results in the literature suggest that the penultimate (second-to-last) layer representations of neural networks that are trained for classification exhibit a clustering property called neural collapse (NC). We study the implicit…

机器学习 · 计算机科学 2022-09-29 Tomer Galanti , Liane Galanti , Ido Ben-Shaul

We consider the problem of learning a one-hidden-layer neural network with non-overlapping convolutional layer and ReLU activation, i.e., $f(\mathbf{Z}, \mathbf{w}, \mathbf{a}) = \sum_j a_j\sigma(\mathbf{w}^T\mathbf{Z}_j)$, in which both…

机器学习 · 计算机科学 2018-06-18 Simon S. Du , Jason D. Lee , Yuandong Tian , Barnabas Poczos , Aarti Singh

We prove large and moderate deviations for the output of Gaussian fully connected neural networks. The main achievements concern deep neural networks (i.e., when the model has more than one hidden layer) and hold for bounded and continuous…

概率论 · 数学 2026-04-01 Claudio Macci , Barbara Pacchiarotti , Giovanni Luca Torrisi

Machine learning models trained by different optimization algorithms under different data distributions can exhibit distinct generalization behaviors. In this paper, we analyze the generalization of models trained by noisy iterative…

机器学习 · 统计学 2022-12-29 Hao Wang , Rui Gao , Flavio P. Calmon

Over-parameterized neural networks generalize well in practice without any explicit regularization. Although it has not been proven yet, empirical evidence suggests that implicit regularization plays a crucial role in deep learning and…

机器学习 · 计算机科学 2019-03-07 Masayoshi Kubo , Ryotaro Banno , Hidetaka Manabe , Masataka Minoji

We study the extent to which wide neural networks may be approximated by Gaussian processes when initialized with random weights. It is a well-established fact that as the width of a network goes to infinity, its law converges to that of a…

概率论 · 数学 2021-02-18 Ronen Eldan , Dan Mikulincer , Tselil Schramm