Augmented probability simulation for accelerated life test design

Nicholas G. Polson and Refik Soyer

Applied Stochastic Models in Business and Industry, 2017, vol. 33, issue 3, 322-332

Abstract: Designing accelerated life tests presents a number of conceptual and computational challenges. We propose a Bayesian decision‐theoretic approach for selecting an optimal stress‐testing schedule and develop an augmented probability simulation approach to obtain the optimal design. The notion of a ‘dual utility probability density’ enables us to invoke the concept of a conjugate utility function. For accelerated life tests, this allows us to construct an augmented probability simulation that simultaneously optimizes and calculates the expected utility. In doing so, we circumvent many of the computational difficulties associated with evaluating pre‐posterior expected utilities. To illustrate our methodology, we consider a single‐stage accelerated life test design; our approach naturally extends to multiple‐stage designs. Finally, we conclude with suggestions for further research. Copyright © 2017 John Wiley & Sons, Ltd.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:wly:apsmbi:v:33:y:2017:i:3:p:322-332

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