GPfit: An R Package for Fitting a Gaussian Process Model to Deterministic Simulator Outputs

Abstract

Gaussian process (GP) models are commonly used statistical metamodels for emulating expensive computer simulators. Fitting a GP model can be numerically unstable if any pair of design points in the input space are close together. Ranjan, Haynes, and Karsten (2011) proposed a computationally stable approach for fitting GP models to deterministic computer… (More)

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