Contour estimation via two fidelity computer simulators under limited resources
Journal
Computational Statistics
Journal Volume
28
Journal Issue
4
Pages
1813-1834
Date Issued
2013
Author(s)
Abstract
The utilization of multiple fidelity simulators for the design and analysis of computer experiments has received increased attention in recent years. In this paper, we study the contour estimation problem for complex systems by considering two fidelity simulators. Our goal is to design a methodology of choosing the best suited simulator and input location for each simulation trial so that the overall estimation of the desired contour can be as good as possible under limited simulation resources. The proposed methodology is sequential and based on the construction of Gaussian process surrogate for the output measure of interest. We illustrate the methodology on a canonical queueing system and evaluate its efficiency via a simulation study. © 2012 Springer-Verlag Berlin Heidelberg.
Subjects
Co-kriging; Contour estimation; Expected improvement criterion; Sequential design; Two fidelity simulators
Type
journal article