Is there an analog of Nesterov acceleration for gradient-based MCMC?

YA Ma, NS Chatterji, X Cheng, N Flammarion… - 2021 - projecteuclid.org
We formulate gradient-based Markov chain Monte Carlo (MCMC) sampling as optimization
on the space of probability measures, with Kullback–Leibler (KL) divergence as the …

On the relation between gradient flows and the large-deviation principle, with applications to Markov chains and diffusion

A Mielke, MA Peletier, DRM Renger - Potential Analysis, 2014 - Springer
Motivated by the occurrence in rate functions of time-dependent large-deviation principles,
we study a class of non-negative functions ℒ that induce a flow, given by ℒ (ρ t, ρ ̇ t)= 0 …

Wasserstein proximal algorithms for the Schrödinger bridge problem: Density control with nonlinear drift

KF Caluya, A Halder - IEEE Transactions on Automatic Control, 2021 - ieeexplore.ieee.org
In this article, we study the Schrödinger bridge problem (SBP) with nonlinear prior dynamics.
In control-theoretic language, this is a problem of minimum effort steering of a given joint …

Gradient flow algorithms for density propagation in stochastic systems

KF Caluya, A Halder - IEEE Transactions on Automatic Control, 2019 - ieeexplore.ieee.org
We develop a new computational framework to solve the partial differential equations
(PDEs) governing the flow of the joint probability density functions (PDFs) in continuous-time …

Variational approach to coarse-graining of generalized gradient flows

MH Duong, A Lamacz, MA Peletier… - Calculus of variations and …, 2017 - Springer
In this paper we present a variational technique that handles coarse-graining and passing to
a limit in a unified manner. The technique is based on a duality structure, which is present in …

[HTML][HTML] Stationary solutions of the Vlasov–Fokker–Planck equation: Existence, characterization and phase-transition

MH Duong, J Tugaut - Applied Mathematics Letters, 2016 - Elsevier
In this paper, we study the set of stationary solutions of the Vlasov–Fokker–Planck (VFP)
equation. This equation describes the time evolution of the probability distribution of a …

Large deviations in stochastic heat-conduction processes provide a gradient-flow structure for heat conduction

MA Peletier, F Redig, K Vafayi - Journal of Mathematical Physics, 2014 - pubs.aip.org
We consider three one-dimensional continuous-time Markov processes on a lattice, each of
which models the conduction of heat: the family of Brownian Energy Processes with …

Stochastic uncertainty propagation in power system dynamics using measure-valued proximal recursions

A Halder, KF Caluya, P Ojaghi… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
We present a proximal algorithm that performs a variational recursion on the space of joint
probability measures to propagate the stochastic uncertainties in power system dynamics …

Operator-splitting schemes for degenerate, non-local, conservative-dissipative systems

D Adams, MH Duong, G Reis - arXiv preprint arXiv:2105.11146, 2021 - arxiv.org
In this paper, we develop a natural operator-splitting variational scheme for a general class
of non-local, degenerate conservative-dissipative evolutionary equations. The splitting …

Wasserstein gradient flow formulation of the time-fractional Fokker-Planck equation

MH Duong, B Jin - arXiv preprint arXiv:1908.09055, 2019 - arxiv.org
In this work, we investigate a variational formulation for a time-fractional Fokker-Planck
equation which arises in the study of complex physical systems involving anomalously slow …