Robust random walk-like Metropolis-Hastings algorithms for concentrating posteriors

D Rudolf, B Sprungk - arxiv preprint arxiv:2202.12127, 2022 - arxiv.org
Motivated by Bayesian inference with highly informative data we analyze the performance of
random walk-like Metropolis-Hastings algorithms for approximate sampling of increasingly …

Maximum a posteriori estimators in are well-defined for diagonal Gaussian priors

I Klebanov, P Wacker - arxiv preprint arxiv:2207.00640, 2022 - arxiv.org
We prove that maximum a posteriori estimators are well-defined for diagonal Gaussian
priors $\mu $ on $\ell^ p $ under common assumptions on the potential $\Phi $. Further, we …

On expansions and nodes for sparse grid collocation of lognormal elliptic PDEs

OG Ernst, B Sprungk, L Tamellini - Sparse Grids and Applications-Munich …, 2021 - Springer
This work is a follow-up to our previous contribution (“Convergence of sparse collocation for
functions of countably many Gaussian random variables (with application to elliptic PDEs)” …

Hierarchical surrogate-based Approximate Bayesian Computation for an electric motor test bench

DN John, L Stohrer, C Schillings, M Schick… - arxiv preprint arxiv …, 2021 - arxiv.org
Inferring parameter distributions of complex industrial systems from noisy time series data
requires methods to deal with the uncertainty of the underlying data and the used simulation …

Learning model discrepancy of an electric motor with Bayesian inference

D John, M Schick, V Heuveline - Preprint Series of …, 2018 - journals.ub.uni-heidelberg.de
Uncertainty Quantification (UQ) is highly requested in computational modeling and
simulation, especially in an industrial context. With the continuous evolution of modern …

Uncertainty quantification for an electric motor inverse problem-tackling the model discrepancy challenge

DN John - 2021 - archiv.ub.uni-heidelberg.de
In the context of complex applications from engineering sciences the solution of
identification problems still poses a fundamental challenge. In terms of Uncertainty …

Contributions to Robust and Efficient Methods for Analysis of High-Dimensional Data

K Yang - 2024 - escholarship.mcgill.ca
The work presented, including the introduction, literature review, bridging texts, discussion,
and conclusion, was authored by myself, Kai Yang, and significantly enhanced under the …

[BOOK][B] Particle Methods for Bayesian Inverse Problems Governed by Partial Differential Equations (PDES)

AN Myers - 2020 - search.proquest.com
Inverse problems enable integration of observational and experimental data, simulations
and/or mathematical models to make scientific predictions. Solving an inverse problem with …