Simplex-based screening designs for estimating metamodels

Abstract : The screening method proposed by Morris in 1991 allows to identify the important factors of a model, including those involved in interactions. This method, known as the elementary effects method, relies on a “one-factor-at-a-time” (OAT) design of experiments, i.e. two successive points differ only by one factor. In this article, we introduce a non-OAT simplex-based design for the elementary effects method. Its main advantage, compared to Morris's OAT design, is that the sample size doesn't collapse when the design is projected on sub-spaces spanned by groups of factors. The use of this design to estimate a metamodel depending only on the (screened) important factors is discussed.
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Reliability Engineering and System Safety, Elsevier, 2009, 94 (7), pp.1156-1160. 〈10.1016/j.ress.2008.08.002〉
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Gilles Pujol. Simplex-based screening designs for estimating metamodels. Reliability Engineering and System Safety, Elsevier, 2009, 94 (7), pp.1156-1160. 〈10.1016/j.ress.2008.08.002〉. 〈hal-00305313〉

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