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- W2495302103 abstract "Local search methods have been applied successfully in calibration of simple groundwater models, but might fail in locating the optimum for models of increased complexity, due to the more complex shape of the response surface. Global search algorithms have been demonstrated to perform well for these types of models, although at a more expensive computational cost. The main purpose of this study is to investigate the performance of a global and a local parameter optimization algorithm, respectively, the Shuffled Complex Evolution (SCE) algorithm and the gradient-based Gauss-Marquardt-Levenberg algorithm (implemented in the PEST software), when applied to a steady-state and a transient groundwater model. The results show that PEST can have severe problems in locating the global optimum and in being trapped in local regions of attractions. The global SCE procedure is, in general, more effective and provides a better coverage of the Pareto optimal solutions at a lower computational cost." @default.
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- W2495302103 date "2006-01-01" @default.
- W2495302103 modified "2023-09-25" @default.
- W2495302103 title "Comparison of parameter estimation algorithms in hydrological modelling" @default.
- W2495302103 hasPublicationYear "2006" @default.
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