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Motivated by classical work on the numerical integration of ordinary differential equations we present a ResNet-styled neural network architecture that encodes non-expansive (1-Lipschitz) operators, as long as the spectral norms of the…

We present PSiLON Net, an MLP architecture that uses $L_1$ weight normalization for each weight vector and shares the length parameter across the layer. The 1-path-norm provides a bound for the Lipschitz constant of a neural network and…

机器学习 · 计算机科学 2024-05-01 Aditya Biswas

The Lipschitz constant is an important quantity that arises in analysing the convergence of gradient-based optimization methods. It is generally unclear how to estimate the Lipschitz constant of a complex model. Thus, this paper studies an…

机器学习 · 统计学 2023-02-10 Calypso Herrera , Florian Krach , Josef Teichmann

We present a near linear time algorithm for constructing hierarchical nets in finite metric spaces with constant doubling dimension. This data-structure is then applied to obtain improved algorithms for the following problems: Approximate…

数据结构与算法 · 计算机科学 2007-05-23 Sariel Har-Peled , Manor Mendel

Lipschitz neural networks are well-known for providing certified robustness in deep learning. In this paper, we present a novel, efficient Block Reflector Orthogonal (BRO) layer that enhances the capability of orthogonal layers on…

机器学习 · 计算机科学 2025-08-06 Bo-Han Lai , Pin-Han Huang , Bo-Han Kung , Shang-Tse Chen

1-Lipschitz neural networks are fundamental for generative modelling, inverse problems, and robust classifiers. In this paper, we focus on 1-Lipschitz residual networks (ResNets) based on explicit Euler steps of negative gradient flows and…

机器学习 · 计算机科学 2025-10-14 Davide Murari , Takashi Furuya , Carola-Bibiane Schönlieb

Deep Neural Networks (DNNs) are vulnerable to adversarial attacks. Existing methods are devoted to developing various robust training strategies or regularizations to update the weights of the neural network. But beyond the weights, the…

计算机视觉与模式识别 · 计算机科学 2023-02-03 Minjing Dong , Yanxi Li , Yunhe Wang , Chang Xu

Training neural networks under a strict Lipschitz constraint is useful for provable adversarial robustness, generalization bounds, interpretable gradients, and Wasserstein distance estimation. By the composition property of Lipschitz…

机器学习 · 计算机科学 2019-06-12 Cem Anil , James Lucas , Roger Grosse

This paper is devoted to the estimation of the Lipschitz constant of general neural network architectures using semidefinite programming. For this purpose, we interpret neural networks as time-varying dynamical systems, where the $k$-th…

机器学习 · 计算机科学 2024-11-26 Patricia Pauli , Dennis Gramlich , Frank Allgöwer

In this paper, we study the problem of optimizing a two-layer artificial neural network that best fits a training dataset. We look at this problem in the setting where the number of parameters is greater than the number of sampled points.…

机器学习 · 计算机科学 2017-11-01 Digvijay Boob , Guanghui Lan

Lipschitz-based certification offers efficient, deterministic robustness guarantees but has struggled to scale in model size, training efficiency, and ImageNet performance. We introduce \emph{LipNeXt}, the first \emph{constraint-free} and…

机器学习 · 计算机科学 2026-01-27 Kai Hu , Haoqi Hu , Matt Fredrikson

The Lipschitz constant of a network plays an important role in many applications of deep learning, such as robustness certification and Wasserstein Generative Adversarial Network. We introduce a semidefinite programming hierarchy to…

最优化与控制 · 数学 2020-10-29 Tong Chen , Jean-Bernard Lasserre , Victor Magron , Edouard Pauwels

Normalizing flows have grown more popular over the last few years; however, they continue to be computationally expensive, making them difficult to be accepted into the broader machine learning community. In this paper, we introduce a…

机器学习 · 计算机科学 2021-12-15 Achintya Gopal

Designing neural networks with bounded Lipschitz constant is a promising way to obtain certifiably robust classifiers against adversarial examples. However, the relevant progress for the important $\ell_\infty$ perturbation setting is…

机器学习 · 计算机科学 2022-10-28 Bohang Zhang , Du Jiang , Di He , Liwei Wang

This paper introduces new parameterizations of equilibrium neural networks, i.e. networks defined by implicit equations. This model class includes standard multilayer and residual networks as special cases. The new parameterization admits a…

机器学习 · 计算机科学 2020-10-06 Max Revay , Ruigang Wang , Ian R. Manchester

It has been shown that a neural network's Lipschitz constant can be leveraged to derive robustness guarantees, to improve generalizability via regularization or even to construct invertible networks. Therefore, a number of methods varying…

机器学习 · 计算机科学 2026-02-18 Tom A. Splittgerber

Transferability of adversarial examples is a well-known property that endangers all classification models, even those that are only accessible through black-box queries. Prior work has shown that an ensemble of models is more resilient to…

机器学习 · 计算机科学 2024-10-08 Ali Ebrahimpour-Boroojeny , Hari Sundaram , Varun Chandrasekaran

Lipschitz constant is a fundamental property in certified robustness, as smaller values imply robustness to adversarial examples when a model is confident in its prediction. However, identifying the worst-case adversarial examples is known…

机器学习 · 计算机科学 2025-12-16 Yongjin Han , Suhyun Kim

Orthogonal graph layout algorithms aim to produce clear, compact, and readable network diagrams by arranging nodes and edges along horizontal and vertical lines, while minimizing bends and crossings. Most existing orthogonal layout methods…

The work is devoted to the construction of efficient and applicable to real tasks first-order methods of convex optimization, that is, using only values of the target function and its derivatives. Construction uses OGM-G, fast gradient…

最优化与控制 · 数学 2020-09-10 Nikita Pletnev