Sequential designs for sensitivity analysis of functional inputs in computer experiments

Abstract : Computer experiments are nowadays commonly used to analyze industrial processes aiming at achieving a wanted outcome. Sensitivity analysis plays an important role in exploring the actual impact of adjustable parameters on the response variable. In this work we focus on sensitivity analysis of a scalar-valued output of a time-consuming computer code depending on scalar and functional input parameters. We investigate a sequential methodology, based on piecewise constant functions and sequential bifurcation, which is both economical and fully interpretable. The new approach is applied to a sheet metal forming problem in three sequential steps, resulting in new insights into the behavior of the forming process over time.
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https://hal-emse.ccsd.cnrs.fr/emse-01146010
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Submitted on : Monday, April 27, 2015 - 2:37:54 PM
Last modification on : Wednesday, May 8, 2019 - 1:30:26 AM

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Jana Fruth, Olivier Roustant, Sonja Kuhnt. Sequential designs for sensitivity analysis of functional inputs in computer experiments. Reliability Engineering and System Safety, Elsevier, 2015, 134, pp.Pages 260-267. ⟨http://www.sciencedirect.com/science/journal/09518320⟩. ⟨10.1016/j.ress.2014.07.018⟩. ⟨emse-01146010⟩

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