Markov chain Monte Carlo is the engine of modern Bayesian statistics, being used to approximate the posterior and derived quantities of interest. Despite this, the issue of how …
M Riabiz, WY Chen, J Cockayne… - Journal of the Royal …, 2022 - academic.oup.com
The use of heuristics to assess the convergence and compress the output of Markov chain Monte Carlo can be sub-optimal in terms of the empirical approximations that are produced …
This paper proposes and studies a numerical method for approximation of posterior expectations based on interpolation with a Stein reproducing kernel. Finite-sample-size …
K Beer - arXiv preprint arXiv:2205.08154, 2022 - arxiv.org
This PhD thesis combines two of the most exciting research areas of the last decades: quantum computing and machine learning. We introduce dissipative quantum neural …
Stein discrepancies have emerged as a powerful tool for retrospective improvement of Markov chain Monte Carlo output. However, the question of how to design Markov chains …
CJ Oates - International Conference on Monte Carlo and Quasi …, 2022 - Springer
For two decades, reproducing kernels and their associated discrepancies have facilitated elegant theoretical analyses in the setting of quasi Monte Carlo. These same tools are now …
L Pronzato - Statistics and Computing, 2023 - Springer
We analyse the performance of several iterative algorithms for the quantisation of a probability measure μ, based on the minimisation of a Maximum Mean Discrepancy (MMD) …
Unbiased assessment of the predictivity of models learnt by supervised machine learning (ML) methods requires knowledge of the learned function over a reserved test set (not used …
B Staber, S Da Veiga - arXiv preprint arXiv:2206.06779, 2022 - arxiv.org
Due to the growing adoption of deep neural networks in many fields of science and engineering, modeling and estimating their uncertainties has become of primary importance …