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Non-asymptotic estimates for accelerated high order Langevin Monte Carlo algorithms
May 10, 2024, 4:44 a.m. | Ariel Neufeld, Ying Zhang
stat.ML updates on arXiv.org arxiv.org
Abstract: In this paper, we propose two new algorithms, namely aHOLA and aHOLLA, to sample from high-dimensional target distributions with possibly super-linearly growing potentials. We establish non-asymptotic convergence bounds for aHOLA in Wasserstein-1 and Wasserstein-2 distances with rates of convergence equal to $1+q/2$ and $1/2+q/4$, respectively, under a local H\"{o}lder condition with exponent $q\in(0,1]$ and a convexity at infinity condition on the potential of the target distribution. Similar results are obtained for aHOLLA under certain global …
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