Search Results for author: Jonathan Wenger

Found 9 papers, 6 papers with code

Accelerating Generalized Linear Models by Trading off Computation for Uncertainty

no code implementations31 Oct 2023 Lukas Tatzel, Jonathan Wenger, Frank Schneider, Philipp Hennig

Bayesian Generalized Linear Models (GLMs) define a flexible probabilistic framework to model categorical, ordinal and continuous data, and are widely used in practice.

Large-Scale Gaussian Processes via Alternating Projection

1 code implementation26 Oct 2023 Kaiwen Wu, Jonathan Wenger, Haydn Jones, Geoff Pleiss, Jacob R. Gardner

Training and inference in Gaussian processes (GPs) require solving linear systems with $n\times n$ kernel matrices.

Gaussian Processes Hyperparameter Optimization

On the Disconnect Between Theory and Practice of Overparametrized Neural Networks

no code implementations29 Sep 2023 Jonathan Wenger, Felix Dangel, Agustinus Kristiadi

Our empirical results demonstrate that this is not the case in optimization, uncertainty quantification or continual learning.

Continual Learning Uncertainty Quantification

Physics-Informed Gaussian Process Regression Generalizes Linear PDE Solvers

1 code implementation23 Dec 2022 Marvin Pförtner, Ingo Steinwart, Philipp Hennig, Jonathan Wenger

Crucially, this probabilistic viewpoint allows to (1) quantify the inherent discretization error; (2) propagate uncertainty about the model parameters to the solution; and (3) condition on noisy measurements.

Bayesian Inference regression

Posterior and Computational Uncertainty in Gaussian Processes

1 code implementation30 May 2022 Jonathan Wenger, Geoff Pleiss, Marvin Pförtner, Philipp Hennig, John P. Cunningham

For any method in this class, we prove (i) convergence of its posterior mean in the associated RKHS, (ii) decomposability of its combined posterior covariance into mathematical and computational covariances, and (iii) that the combined variance is a tight worst-case bound for the squared error between the method's posterior mean and the latent function.

Gaussian Processes

Preconditioning for Scalable Gaussian Process Hyperparameter Optimization

no code implementations1 Jul 2021 Jonathan Wenger, Geoff Pleiss, Philipp Hennig, John P. Cunningham, Jacob R. Gardner

While preconditioning is well understood in the context of CG, we demonstrate that it can also accelerate convergence and reduce variance of the estimates for the log-determinant and its derivative.

Gaussian Processes Hyperparameter Optimization

Non-Parametric Calibration for Classification

1 code implementation12 Jun 2019 Jonathan Wenger, Hedvig Kjellström, Rudolph Triebel

Many applications of classification methods not only require high accuracy but also reliable estimation of predictive uncertainty.

Active Learning Classification +2

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