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Direct search optimization in mathematical modeling and a watershed model application
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    The purpose of this report is to describe and demonstrate the application of Pattern Search, a direct search optimization technique, to mathematical modeling. Pattern Search is explained in three ways: geometrically, verbally, and mathematically". Examples are given to demonstrate the uses of this technique. Input/output data are provided that may be used to check the accuracy of a duplication of the computer program. (Appendix B). It is shown that Pattern Search is a powerful technique for the objective determination of optimal values for model coefficients. The technique is applied to a Watershed Model.

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