Sampling from Gaussian process posteriors using stochastic gradient descent

JA Lin, J Antorán, S Padhy, D Janz… - Advances in …, 2023 - proceedings.neurips.cc
Gaussian processes are a powerful framework for quantifying uncertainty and for sequential
decision-making but are limited by the requirement of solving linear systems. In general, this …

Adapting the linearised laplace model evidence for modern deep learning

J Antorán, D Janz, JU Allingham… - International …, 2022 - proceedings.mlr.press
The linearised Laplace method for estimating model uncertainty has received renewed
attention in the Bayesian deep learning community. The method provides reliable error bars …

Sampling-based inference for large linear models, with application to linearised Laplace

J Antorán, S Padhy, R Barbano, E Nalisnick… - arXiv preprint arXiv …, 2022 - arxiv.org
Large-scale linear models are ubiquitous throughout machine learning, with contemporary
application as surrogate models for neural network uncertainty quantification; that is, the …

An educated warm start for deep image prior-based micro CT reconstruction

R Barbano, J Leuschner, M Schmidt… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Deep image prior (DIP) was recently introduced as an effective unsupervised approach for
image restoration tasks. DIP represents the image to be recovered as the output of a deep …

Promises and pitfalls of the linearized Laplace in Bayesian optimization

A Kristiadi, A Immer, R Eschenhagen… - arXiv preprint arXiv …, 2023 - arxiv.org
The linearized-Laplace approximation (LLA) has been shown to be effective and efficient in
constructing Bayesian neural networks. It is theoretically compelling since it can be seen as …

Sequential experimental design for X-ray CT using deep reinforcement learning

T Wang, F Lucka, T van Leeuwen - arXiv preprint arXiv:2307.06343, 2023 - arxiv.org
In X-ray Computed Tomography (CT), projections from many angles are acquired and used
for 3D reconstruction. To make CT suitable for in-line quality control, reducing the number of …

PEARL: Cascaded Self-supervised Cross-fusion Learning For Parallel MRI Acceleration

Q Zhu, B Liu, ZX Cui, C Cao, X Yan… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
Supervised deep learning (SDL) methodology holds promise for accelerated magnetic
resonance imaging (AMRI) but is hampered by the reliance on extensive training data …

Invertible neural networks and normalizing flows for image reconstruction

A Denker - 2024 - media.suub.uni-bremen.de
Data-based methods, in particular deep learning methods, have been successfully applied
to solve various inverse problems. In medical imaging, for example in computed tomography …