An augmented approach to the desirability function

Hsiu-Wen Chen, Weng Kee Wong and Hongquan Xu

Journal of Applied Statistics, 2012, vol. 39, issue 3, 599-613

Abstract: The desirability function is widely used in the engineering field to tackle the problem of optimizing multiple responses simultaneously. This approach does not account for the variability in the predicted responses and minimizing this variability to have narrower prediction intervals is desirable. We propose to add this capability in the desirability function and also incorporate the relative importance of optimizing the multiple responses and minimizing the variances of the predicted responses at the same time. We show that the benefits of our augmented approach using two real data sets by comparing our solutions with those obtained from the desirability approach. In particular, it is shown that our approach offers greater flexibility and the solutions can reduce the variances of all the predicted responses resulting in narrower prediction intervals.

Date: 2012
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DOI: 10.1080/02664763.2011.605437

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