Designing a computer experiment that involves switches
Designing a computer experiment that involves switches
The use of Gaussian process emulators is now widespread in the analysis of computer experiments. These methods generally assume that all the simulator inputs are continuous. In this paper we consider the design problem for the case where one or more simulator inputs is a switch, a factor that can take the values on or off. We propose two possible designs: One based on Sobol sequences and one on Latin Hypercubes. In both cases a small, but space filling, subset of simulator runs are carried out at both switch settings. This design is then nested within larger space filling designs one for each of the switch settings. If the switch is found to not affect the results these two designs can be combined into a much larger also space tilling design.
47-57
Challenor, P.G.
a7e71e56-8391-442c-b140-6e4b90c33547
March 2011
Challenor, P.G.
a7e71e56-8391-442c-b140-6e4b90c33547
Abstract
The use of Gaussian process emulators is now widespread in the analysis of computer experiments. These methods generally assume that all the simulator inputs are continuous. In this paper we consider the design problem for the case where one or more simulator inputs is a switch, a factor that can take the values on or off. We propose two possible designs: One based on Sobol sequences and one on Latin Hypercubes. In both cases a small, but space filling, subset of simulator runs are carried out at both switch settings. This design is then nested within larger space filling designs one for each of the switch settings. If the switch is found to not affect the results these two designs can be combined into a much larger also space tilling design.
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Published date: March 2011
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Marine Systems Modelling
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Local EPrints ID: 178903
URI: http://eprints.soton.ac.uk/id/eprint/178903
ISSN: 1559-8608
PURE UUID: 29be71ee-d52f-47da-9ec3-2f59836ee422
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Date deposited: 28 Mar 2011 14:28
Last modified: 14 Mar 2024 02:47
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Author:
P.G. Challenor
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