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Title: Small-Noise Analysis and Symmetrization of Implicit Monte Carlo Samplers

Journal Article · · Communications on Pure and Applied Mathematics
DOI:https://doi.org/10.1002/cpa.21592· OSTI ID:1418471
 [1];  [2];  [3]
  1. Courant Institute, New York, NY (United States)
  2. Univ. of Arizona, Tucson, AZ (United States)
  3. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Implicit samplers are algorithms for producing independent, weighted samples from multivariate probability distributions. These are often applied in Bayesian data assimilation algorithms. We use Laplace asymptotic expansions to analyze two implicit samplers in the small noise regime. Our analysis suggests a symmetrization of the algorithms that leads to improved implicit sampling schemes at a relatively small additional cost. Here, computational experiments confirm the theory and show that symmetrization is effective for small noise sampling problems.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); National Science Foundation (NSF)
Grant/Contract Number:
AC02-05CH11231; DMS-1217065; DMS-1418775; DMS-1419044
OSTI ID:
1418471
Journal Information:
Communications on Pure and Applied Mathematics, Vol. 69, Issue 10; ISSN 0010-3640
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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Cited By (2)

Sampling via Measure Transport: An Introduction book January 2016
Sampling via Measure Transport: An Introduction book June 2017

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