Monte Carlo (MC) methods are widely used in statistics, signal processing and machinelearning. A well-known class of MC methods are Markov Chain Monte Carlo (MCMC)algorithms. In order to foster better exploration of the state space, specially in high-dimensional applications, several schemes employing multiple parallel MCMC chains have beenrecently introduced. In this work, ...

We develop a novel Markov chain Monte Carlo (MCMC) method that exploits hierarchy of models increasing complexity to efficiently generate samples from an unnormalized target distribution. Broadly, the rewrites multilevel MCMC approach Dodwell et al. [SIAM/ASA J. Un-certain. Quantif., 3 (2015), pp. 1075–1108] in terms delayed acceptance Christen and Fox [J. Comput. Graph. Statist., 14 (2005), 79...

We apply coarse-to-fine MCMC to perform Bayesian inference for a seismic monitoring system. While traditional MCMC has difficulty moving between local optima, by applying coarse-to-fine MCMC, we can adjust the resolution of the model and this allows the state to jump between different optima more easily. It is quite similar to simulated annealing. We will use a 1D model as an example, and then ...

Markov Chain Monte Carlo (MCMC) methods are increasingly popular among epidemiologists. The reason for this may in part be that MCMC offers an appealing approach to handling some difficult types of analyses. Additionally, MCMC methods are those most commonly used for Bayesian analysis. However, epidemiologists are still largely unfamiliar with MCMC. They may lack familiarity either with he impl...

When model parameters in systems biology are not available from experiments, they need to be inferred so that the resulting simulation reproduces the experimentally known phenomena. For the purpose, Bayesian statistics with Markov chain Monte Carlo (MCMC) is a useful method. Conventional MCMC needs likelihood to evaluate a posterior distribution of acceptable parameters, while the approximate B...

Monte Carlo sampling methods are the standard procedure for approximating complicated integrals of multidimensional posterior distributions in Bayesian inference. In this work, we focus on class Layered Adaptive Importance Sampling (LAIS) scheme, which is a family adaptive importance samplers where Markov chain algorithms employed to drive an underlying multiple scheme. The modular nature LAIS ...

Abstract We study a class of adaptive Markov Chain Monte Carlo (MCMC) processes which aim at behaving as an optimal target process via a learning procedure. We show, under appropriate conditions, that the adaptive process and the optimal (nonadaptive) MCMC process share identical asymptotic properties. The special case of adaptive MCMC algorithms governed by stochastic approximation is consider...