activity
20132024
most citedSequential Monte Carlo Methods for State and Parameter Estimation in Abruptly Changing Environments

86 citations · 121 across the 27 of their papers we have counts for

collaborators

31 papers

stat.ML2024

Stochastic Gradient Piecewise Deterministic Monte Carlo Samplers

Paul Fearnhead, Sebastiano Grazzi, Chris Nemeth +1

Recent work has suggested using Monte Carlo methods based on piecewise deterministic Markov processes (PDMPs) to sample from target distributions of interest. PDMPs are non-reversi…

stat.ML2024

Diffusion Generative Modelling for Divide-and-Conquer MCMC

C. Trojan, P. Fearnhead, C. Nemeth

Divide-and-conquer MCMC is a strategy for parallelising Markov Chain Monte Carlo sampling by running independent samplers on disjoint subsets of a dataset and merging their output.…

stat.ML2023

Learning Rate Free Sampling in Constrained Domains

Louis Sharrock, Lester Mackey, Christopher Nemeth

We introduce a suite of new particle-based algorithms for sampling in constrained domains which are entirely learning rate free. Our approach leverages coin betting ideas from conv…

stat.ML2023

Tuning-Free Maximum Likelihood Training of Latent Variable Models via Coin Betting

Louis Sharrock, Daniel Dodd, Christopher Nemeth

We introduce two new particle-based algorithms for learning latent variable models via marginal maximum likelihood estimation, including one which is entirely tuning-free. Our meth…

stat.ML2023

Coin Sampling: Gradient-Based Bayesian Inference without Learning Rates

Louis Sharrock, Christopher Nemeth

In recent years, particle-based variational inference (ParVI) methods such as Stein variational gradient descent (SVGD) have grown in popularity as scalable methods for Bayesian in…

stat.ML2022

Preferential Subsampling for Stochastic Gradient Langevin Dynamics

Srshti Putcha, Christopher Nemeth, Paul Fearnhead

Stochastic gradient MCMC (SGMCMC) offers a scalable alternative to traditional MCMC, by constructing an unbiased estimate of the gradient of the log-posterior with a small, uniform…