Search Results for author: Teo Deveney

Found 4 papers, 1 papers with code

Closing the ODE-SDE gap in score-based diffusion models through the Fokker-Planck equation

no code implementations27 Nov 2023 Teo Deveney, Jan Stanczuk, Lisa Maria Kreusser, Chris Budd, Carola-Bibiane Schönlieb

In this paper we rigorously describe the range of dynamics and approximations that arise when training score-based diffusion models, including the true SDE dynamics, the neural approximations, the various approximate particle dynamics that result, as well as their associated Fokker--Planck equations and the neural network approximations of these Fokker--Planck equations.

Your diffusion model secretly knows the dimension of the data manifold

no code implementations23 Dec 2022 Jan Stanczuk, Georgios Batzolis, Teo Deveney, Carola-Bibiane Schönlieb

A diffusion model approximates the score function i. e. the gradient of the log density of a noise-corrupted version of the target distribution for varying levels of corruption.

Deep surrogate accelerated delayed-acceptance HMC for Bayesian inference of spatio-temporal heat fluxes in rotating disc systems

1 code implementation5 Apr 2022 Teo Deveney, Eike Mueller, Tony Shardlow

Biot number calculations are involved in turbo-machinery design, which is safety critical and highly regulated, therefore it is important that our results have such mathematical guarantees.

Bayesian Inference

A deep surrogate approach to efficient Bayesian inversion in PDE and integral equation models

no code implementations3 Oct 2019 Teo Deveney, Eike Mueller, Tony Shardlow

The second is the development of a new, efficient deep learning-based method for Bayesian inversion applied to problems that can be described by PDEs or integral equations.

Bayesian Inference

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