Journal
HYDROLOGICAL PROCESSES
Volume 23, Issue 19, Pages 2765-2773Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/hyp.7374
Keywords
neural network; constrained differential dynamic programming (CDDP); groundwater management
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Researchers have found that obtaining optimal solutions for groundwater resource-planning problems, while simultaneously considering time-varying pumping rates, is a challenging task. This study integrates any artificial neural network (ANN) and constrained differential dynamic programming (CDDP) as simulation-optimization model, called ANN-CDDP. Optimal solutions for a groundwater resource-planning problem are determined while simultaneously considering time-varying pumping rates. A trained ANN is used as the transition function to predict ground water table under variable pumping conditions. The results show that the ANN-CDDP reduces computational time by as much as 94.5% when compared to the time required by the conventional model. The proposed optimization model saves a considerable amount of computational time for solving large-scale problems. Copyright (c) 2009 John Wiley & Sons, Ltd.
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