Search Results for author: Davide Murari

Found 6 papers, 3 papers with code

Contractive Systems Improve Graph Neural Networks Against Adversarial Attacks

no code implementations12 Nov 2023 Moshe Eliasof, Davide Murari, Ferdia Sherry, Carola-Bibiane Schönlieb

Graph Neural Networks (GNNs) have established themselves as a key component in addressing diverse graph-based tasks.

Designing Stable Neural Networks using Convex Analysis and ODEs

1 code implementation29 Jun 2023 Ferdia Sherry, Elena Celledoni, Matthias J. Ehrhardt, Davide Murari, Brynjulf Owren, Carola-Bibiane Schönlieb

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 weights are appropriately constrained.

Deblurring Image Classification +2

Predictions Based on Pixel Data: Insights from PDEs and Finite Differences

no code implementations1 May 2023 Elena Celledoni, James Jackaman, Davide Murari, Brynjulf Owren

Neural networks are the state-of-the-art for many approximation tasks in high-dimensional spaces, as supported by an abundance of experimental evidence.

Dynamical systems' based neural networks

1 code implementation5 Oct 2022 Elena Celledoni, Davide Murari, Brynjulf Owren, Carola-Bibiane Schönlieb, Ferdia Sherry

The structure of the neural network is then inferred from the properties of the ODE vector field.

Learning Hamiltonians of constrained mechanical systems

1 code implementation31 Jan 2022 Elena Celledoni, Andrea Leone, Davide Murari, Brynjulf Owren

Recently, there has been an increasing interest in modelling and computation of physical systems with neural networks.

Lie Group integrators for mechanical systems

no code implementations25 Feb 2021 Elena Celledoni, Ergys Çokaj, Andrea Leone, Davide Murari, Brynjulf Owren

Finally, we show how Lie group integrators can be applied to model the controlled path of a payload being transported by two rotors.

Image Registration Numerical Analysis Numerical Analysis Dynamical Systems 65L05, 70E55

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