Optimal multivariate bounded adjustment.

Autor: Runger, George, Lian, Zilong, Del Castillo, Enrique
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Zdroj: IIE Transactions; Oct2010, Vol. 42 Issue 10, p746-752, 7p, 1 Graph
Abstrakt: A bounded adjustment strategy is an important link between statistical process control and engineering process control (or closed-loop feedback adjustment). The optimal bounded adjustment strategy for the case of a single variable has been reported in the literature and recently a number of publications have enhanced this relationship (but still for a single variable). The optimal bounded adjustment strategy for a multivariate processes (of arbitrary dimension) is derived in this article. This uses optimization and exploits a symmetry relationship to obtain a closed-form solution for the optimal strategy. Furthermore, a numerical method is developed to analyze the adjustment strategy for an arbitrary number of dimensions with only a one-dimensional integral. This provides the link between statistical and engineering process control in the important multivariate case. Both infinite- and finite-horizon solutions are presented along with a numerical illustration. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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