Multi-marginal couplings combined with an adaptive shared-randomness Poisson Monte Carlo method improve coalescence rates for multiple Metropolis-Hastings chains, cutting meeting times by up to 50%.
A coupling-based approach to f-divergences diagnostics for markov chain monte carlo.arXiv preprint arXiv:2510.07559, 2025
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Multi-Marginal Couplings for Metropolis-Hastings
Multi-marginal couplings combined with an adaptive shared-randomness Poisson Monte Carlo method improve coalescence rates for multiple Metropolis-Hastings chains, cutting meeting times by up to 50%.