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  4. MATHICSE Technical Report : Generalized Parallel Tempering on Bayesian Inverse Problems
 
working paper

MATHICSE Technical Report : Generalized Parallel Tempering on Bayesian Inverse Problems

Latz, Jonas
•
Madrigal Cianci, Juan Pablo  
•
Nobile, Fabio  
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March 10, 2020

In the current work we present two generalizations of the Parallel Tempering algorithm, inspired by the so-called continuous-time Infinite Swapping algorithm. Such a method, found its origins in the molecular dynamics community, and can be understood as the limit case of the continuous-time Parallel Tempering algorithm, where the (random) time between swaps of states between two parallel chains goes to zero. Thus, swapping states between chains occurs continuously. In the current work, we extend this idea to the context of time-discrete Markov chains and present two Markov chain Monte Carlo algorithms that follow the same paradigm as the continuous-time infinite swapping procedure. We analyze the convergence properties of such discrete-time algorithms in terms of their spectral gap, and implement them to sample from different target distributions. Numerical results show that the proposed methods significantly improve sampling efficiency over more traditional sampling algorithms such as Random Walk Metropolis and (traditional) Parallel Tempering.

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Type
working paper
DOI
10.5075/epfl-MATHICSE-276213
Author(s)
Latz, Jonas
Madrigal Cianci, Juan Pablo  
Nobile, Fabio  
Tempone, Raul
Corporate authors
Corporate author = MATHICSE Group
Date Issued

2020-03-10

Publisher

MATHICSE

Subjects

Bayesian inversion

•

Parallel tempering

•

Infinite swapping

•

Markov chain Monte Carlo

•

Uuncertainty quantification

Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
CSQI  
RelationURL/DOI

IsPreviousVersionOf

https://infoscience.epfl.ch/record/288839
Available on Infoscience
March 12, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/167239
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