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- W2952783206 abstract "We present an efficient finite difference method for the computation of parameter sensitivities that is applicable to a wide class of continuous time Markov chain models. The estimator for the method is constructed by coupling the perturbed and nominal processes in a natural manner, and the analysis proceeds by utilizing a martingale representation for the coupled processes. The variance of the resulting estimator is shown to be an order of magnitude lower due to the coupling. We conclude that the proposed method produces an estimator with a lower variance than other methods, including the use of Common Random Numbers, in most situations. Often the variance reduction is substantial. The method is no harder to implement than any standard continuous time Markov chain algorithm, such as Gillespie's algorithm. The motivating class of models, and the source of our examples, are the stochastic chemical kinetic models commonly used in the biosciences, though other natural application areas include population processes and queuing networks." @default.
- W2952783206 created "2019-06-27" @default.
- W2952783206 creator A5003071783 @default.
- W2952783206 date "2011-09-13" @default.
- W2952783206 modified "2023-09-27" @default.
- W2952783206 title "An Efficient Finite Difference Method for Parameter Sensitivities of Continuous Time Markov Chains" @default.
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- W2952783206 hasPublicationYear "2011" @default.
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