Bayesian update with importance sampling: Required sample size

D Sanz-Alonso, Z Wang - Entropy, 2020 - mdpi.com
Importance sampling is used to approximate Bayes' rule in many computational approaches
to Bayesian inverse problems, data assimilation and machine learning. This paper reviews …

Localized ensemble Kalman inversion

XT Tong, M Morzfeld - Inverse Problems, 2023 - iopscience.iop.org
Ensemble Kalman inversion (EKI) is an adaption of the ensemble Kalman filter (EnKF) for
the numerical solution of inverse problems. Both EKI and EnKF suffer from the'subspace …

Integrative methods for post-selection inference under convex constraints

S Panigrahi, J Taylor, A Weinstein - The Annals of Statistics, 2021 - projecteuclid.org
Integrative methods for post-selection inference under convex constraints Page 1 The Annals
of Statistics 2021, Vol. 49, No. 5, 2803–2824 https://doi.org/10.1214/21-AOS2057 © Institute of …

A unified performance analysis of likelihood-informed subspace methods

T Cui, XT Tong - Bernoulli, 2022 - projecteuclid.org
A unified performance analysis of likelihood-informed subspace methods Page 1 Bernoulli
28(4), 2022, 2788–2815 https://doi.org/10.3150/21-BEJ1437 A unified performance analysis …

Entropy contraction of the Gibbs sampler under log-concavity

F Ascolani, H Lavenant, G Zanella - arXiv preprint arXiv:2410.00858, 2024 - arxiv.org
The Gibbs sampler (aka Glauber dynamics and heat-bath algorithm) is a popular Markov
Chain Monte Carlo algorithm which iteratively samples from the conditional distributions of a …

Replica exchange for non-convex optimization

J Dong, XT Tong - Journal of Machine Learning Research, 2021 - jmlr.org
Gradient descent (GD) is known to converge quickly for convex objective functions, but it can
be trapped at local minima. On the other hand, Langevin dynamics (LD) can explore the …

Sparse approximation of triangular transports, part i: The finite-dimensional case

J Zech, Y Marzouk - Constructive Approximation, 2022 - Springer
For two probability measures ρ and π with analytic densities on the d-dimensional cube [-1,
1] d, we investigate the approximation of the unique triangular monotone Knothe–Rosenblatt …

[HTML][HTML] BAMCAFE: A Bayesian machine learning advanced forecast ensemble method for complex turbulent systems with partial observations

N Chen, Y Li - Chaos: An Interdisciplinary Journal of Nonlinear …, 2021 - pubs.aip.org
Ensemble forecast based on physics-informed models is one of the most widely used
forecast algorithms for complex turbulent systems. A major difficulty in such a method is the …

Local MALA-within-Gibbs for Bayesian image deblurring with total variation prior

R Flock, S Liu, Y Dong, XT Tong - arXiv preprint arXiv:2409.09810, 2024 - arxiv.org
We consider Bayesian inference for image deblurring with total variation (TV) prior. Since
the posterior is analytically intractable, we resort to Markov chain Monte Carlo (MCMC) …

Sparse approximation of triangular transports, part II: The infinite-dimensional case

J Zech, Y Marzouk - Constructive Approximation, 2022 - Springer
For two probability measures ρ and π on [-1, 1] N we investigate the approximation of the
triangular Knothe–Rosenblatt transport T:[-1, 1] N→[-1, 1] N that pushes forward ρ to π …