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Kennedy-O'Hagan

Multi-fidelity Gaussian processes: predicting a costly code from cheap approximations

Paper title Predicting the output from a complex computer code when fast approximations are available

Kennedy and O'Hagan

Paper doi.org⁠

Combines expensive runs of the most complex version of a computer code with relatively cheap runs of one or more simpler approximations, in a Bayesian approach where prior beliefs about the codes are Gaussian processes, for prediction and uncertainty analysis of the expensive output.

Published
Biometrika

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