Low Variance Couplings for Stochastic Models of Intracellular Processes with Time-Dependent Rate Functions

David F. Anderson,Chaojie Yuan

Published 2017 in Bulletin of Mathematical Biology

ABSTRACT

A number of coupling strategies are presented for stochastically modeled biochemical processes with time-dependent parameters. In particular, the stacked coupling is introduced and is shown via a number of examples to provide an exceptionally low variance between the generated paths. This coupling will be useful in the numerical computation of parametric sensitivities and the fast estimation of expectations via multilevel Monte Carlo methods. We provide the requisite estimators in both cases.

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