Parallel marginalization Monte Carlo with applications to conditional path sampling

Details Parallel marginalization Monte Carlo with applications to conditional path sampling Parallel marginalization Monte Carlo with applications to conditional path sampling

2007-09-11

arxiv.org/abs/0709.1721v1

Statistics

Computation

Scientific paper

Monte Carlo sampling methods often suffer from long correlation times. Consequently, these methods must be run for many steps to generate an independent sample. In this paper a method is proposed to overcome this difficulty. The method utilizes information from rapidly equilibrating coarse Markov chains that sample marginal distributions of the full system. This is accomplished through exchanges between the full chain and the auxiliary coarse chains. Results of numerical tests on the bridge sampling and filtering/smoothing problems for a stochastic differential equation are presented.

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