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B0599
Title: Response surface designs robust to missing observations Authors:  Luzia Trinca - Unesp (Brazil) [presenting]
Marcelo da Silva - USP (Brazil)
Steven Gilmour - KCL (United Kingdom)
Abstract: Design criteria which allow pure error degrees of freedom may produce designs that break down when even a single run is missing. The inclusion, in a compound criteria, of a measure of leverage uniformity is proposed in order to produce designs that are more robust to missing observations. By appropriately choosing the weights of each part of the criterion, robust designs are obtained that are also highly efficient in terms of other properties. Several examples are used for illustration.