Adaptive sequential experiment methodology for response surface optimisation Online publication date: Fri, 18-Dec-2009
by Adel Alaeddini, Kai Yang
International Journal of Quality Engineering and Technology (IJQET), Vol. 1, No. 1, 2009
Abstract: Traditional response surface methodology (RSM) designs such as central composite design (CCD) use fixed factor settings to fit appropriate mathematical models. Despite their widespread applications, such approaches are not effective in terms of the number of required experiments and model precision. The number of required experiments shows its importance when economical aspects of each extra experiment are considered. Also, model precision reveals its significance when the problem deals with large factor space. Considering these facts, we introduce the methodology of adaptive sequential experiments on two-dimensional space which conducts fewer experiments on non-optimal region and more experiments on the optimal region. This methodology is based on a simple strategy: using previous experiments information for determining the factor setting of new experiments and shrinking the factor space to smaller region toward the optimal point. We show the effectiveness of these strategies by comparing the proposed approach with CCD on twelve numerical examples.
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