TY - CHAP N2 - Research on metamodel-based optimization has received considerably increasing interest in recent years, and has found successful applications in solving computationally expensive problems. The joint use of computer simulation experiments and metamodels introduces a source of uncertainty that we refer to as metamodel variability. To analyze and quantify this variability, we apply bootstrapping to residuals derived as prediction errors computed from cross-validation. The proposed method can be used with different types of metamodels, especially when limited knowledge on parameters? distribution is available or when a limited computational budget is allowed. Our preliminary experiments based on the robust version of the EOQ model show encouraging results. TI - Metamodel variability analysis combining bootstrapping and validation techniques ID - eprints1444 SN - 978-1-4673-4780-8 N1 - Article No.: 334 AV - public T2 - WSC '12 Proceedings of the Winter Simulation Conference PB - ACM Y1 - 2012/12// UR - http://dl.acm.org/citation.cfm?id=2430206 A1 - Dellino, Gabriella A1 - Meloni, Carlo ER -