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Cited by 758

The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.

Choosing the Sample Size of a Computer Experiment: A Practical Guide

Loeppky, Jason L., Sacks, Jerome, Welch, William J.·2009·Technometrics

Abstract

We provide reasons and evidence supporting the informal rule that the number of runs for an effective initial computer experiment should be about 10 times the input dimension. Our arguments quantify two key characteristics of computer codes that affect the sample size required for a desired level of accuracy when approximating the code via a Gaussian process (GP). The first characteristic is the total sensitivity of a code output variable to all input variables; the second corresponds to the way this total sensitivity is distributed across the input variables, specifically the possible presence of a few prominent input factors and many impotent ones (i.e., effect sparsity). Both measures relate directly to the correlation structure in the GP approximation of the code. In this way, the article moves toward a more formal treatment of sample size for a computer experiment. The evidence supporting these arguments stems primarily from a simulation study and via specific codes modeling climate and ligand activation of G-protein.

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Crossref · 10.1198/tech.2009.08040

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Metadata

Authors
Loeppky, J. L., Sacks, J., & Welch, W. J.
Venue
Technometrics
Published
2009-11
Volume
51
Issue
4
Pages
366-376
ISSN
  • 0040-1706 (ISSN-L)
  • 1537-2723
OpenAlex
W2098720801
Cited by
758
References
16
FWCI
20.75
Type
journal article
Language
en
Open access
closed

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