28 July 2024 to 3 August 2024
Europe/London timezone

On the geometric convergence of HMC on Riemannian manifolds

2 Aug 2024, 14:55
20m
Talk Algorithms and Artificial Intelligence Algorithms and artificial intelligence

Speaker

Xinhao Yu (University of Edinburgh)

Description

On the geometric convergence of HMC on Riemannian manifolds.

In this presentation we apply Harris' ergodic theorem on Markov chains to prove
the geometric convergence of Hamiltonian Monte Carlo: first on compact
Riemannian manifolds, and secondly on a large class of non-compact Riemannian
manifolds by introducing an extra Metropolis step in the radial direction. We
shall use $\phi^4$ theory as an explicit example of the latter case.

Primary authors

Xinhao Yu (University of Edinburgh) Prof. Anthony Kennedy (University of Edinburgh)

Presentation materials