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Gradient estimation for smooth stopping criteria

Published online by Cambridge University Press:  15 June 2022

Bernd Heidergott*
Affiliation:
Vrije Universiteit Amsterdam
Yijie Peng*
Affiliation:
Peking University
*
*Postal address: Department of Operations Analytics, De Boelelaan 1105, 1081 HV Amsterdam. Email address: b.f.heidergott@vu.nl
**Postal address: Guanhua School of Management, 52 Haidian Rd, Beijing. Email address: pengyijie@pku.edu.cn

Abstract

We establish sufficient conditions for differentiability of the expected cost collected over a discrete-time Markov chain until it enters a given set. The parameter with respect to which differentiability is analysed may simultaneously affect the Markov chain and the set defining the stopping criterion. The general statements on differentiability lead to unbiased gradient estimators.

Type
Original Article
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of Applied Probability Trust

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