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Adaptive simulation using perfect control variates

Published online by Cambridge University Press:  14 July 2016

Shane G. Henderson*
Affiliation:
Cornell University
Burt Simon*
Affiliation:
University of Colorado at Denver
*
Postal address: School of Operations Research and Industrial Engineering, Cornell University, Ithaca, NY 14853, USA. Email address: shane@orie.cornell.edu
∗∗ Postal address: Department of Mathematics, University of Colorado at Denver, Campus Box 170, PO Box 173364, Denver, CO 80217-3364, USA. Email address: bsimon@math.cudenver.edu

Abstract

We introduce adaptive-simulation schemes for estimating performance measures for stochastic systems based on the method of control variates. We consider several possible methods for adaptively tuning the control-variate estimators, and describe their asymptotic properties. Under certain assumptions, including the existence of a ‘perfect control variate’, all of the estimators considered converge faster than the canonical rate of n −1/2, where n is the simulation run length. Perfect control variates for a variety of stochastic processes can be constructed from ‘approximating martingales’. We prove a central limit theorem for an adaptive estimator that converges at rate A similar estimator converges at rate n −1. An exponential rate of convergence is also possible under suitable conditions.

Information

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 2004 

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