arXiv Machine Learning

A Unified Matrix-Spectral Framework for Stability and Interpretability in Deep Learning

The paper introduces a unified matrix‑spectral framework that treats deep neural networks as data‑dependent products of linear operators, enabling the analysis of stability and interpretability through spectral quantities. It defines a Global Matrix Stability Index that aggregates spectral information from Jacobians, parameter gradients, Neural Tangent Kernel operators, and loss Hessians into a single stability scale, and shows that spectral entropy provides a more realistic measure of sensitivity than worst‑case bounds. Experiments on MNIST, CIFAR‑10, and CIFAR‑100 demonstrate that modest spectral regularization can significantly improve attribution stability without large changes to global spectral summaries.

arXiv Machine Learning
Jul 16

How the Hessian-Spectrum of Neural Networks Depends on Data

arXiv:2607. 13631v1 Announce Type: new Abstract: The Hessian matrix is an important quantity of interest when it comes to studying the loss landscape and optimization dynamics in deep learning, as well as designing measures of generalization, second-order learning algorithms, etc.

By Jasraj Singh, Enea Monzio Compagnoni, Antonio Orvieto
arXiv AI
Sep 15

L-Lipschitz Gershgorin ResNet Network

The paper introduces a method for constructing L-Lipschitz deep residual networks (ResNets) using a Linear Matrix Inequality (LMI) framework. By reformulating the ResNet architecture as a pseudo-tridiagonal LMI and applying the Gershgorin circle theorem, the authors derive closed‑form constraints on network parameters that guarantee Lipschitz continuity. The work also presents a compositional framework for handling recursive systems in hierarchical architectures, while noting that the Gershgorin-based approximations can over‑constrain the system, reducing expressive capacity.

By Marius F. R. Juston, William R. Norris, Dustin Nottage, Ahmet Soylemezoglu
Hugging Face Trending Papers
Jul 15

How the Hessian-Spectrum of Neural Networks Depends on Data

The Hessian matrix is an important quantity of interest when it comes to studying the loss landscape and optimization dynamics in deep learning, as well as designing measures of generalization, second-order learning algorithms, etc. Prior works have focused on empirical results or pursued a theoretical treatment under overly simplified settings.

arXiv Machine Learning
Jul 2

Zeroth-Order Optimization at the Edge of Stability

arXiv:2604. 14669v2 Announce Type: replace Abstract: Zeroth-order (ZO) methods are widely used when gradients are unavailable or prohibitively expensive, including black-box learning and memory-efficient fine-tuning of large models, yet their optimization dynamics in deep learning remain underexplored.

By Minhak Song, Liang Zhang, Bingcong Li, Niao He, Michael Muehlebach, Sewoong Oh