An effective screening design for sensitivity analysis of large models
Environmental Modelling & Software
DESASS: A software tool for designing, simulating and optimising WWTPs
Environmental Modelling & Software
Intelligent control aeration and external carbon addition for improving nitrogen removal
Environmental Modelling & Software
A systematic approach for fine-tuning of fuzzy controllers applied to WWTPs
Environmental Modelling & Software
How to avoid a perfunctory sensitivity analysis
Environmental Modelling & Software
Variance-based sensitivity analysis of model outputs using surrogate models
Environmental Modelling & Software
Sobol' sensitivity analysis of a complex environmental model
Environmental Modelling & Software
Environmental Modelling & Software
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In this paper, a revised version of the Morris approach, which includes an improved sampling strategy based on trajectory design, has been adapted to the screening of the most influential parameters of a fuzzy controller applied to WWTPs. Due to the high number of parameters, a systematic approach has been proposed to apply this improved sampling strategy with low computational demand. In order to find out the proper repetition number of elementary effects of each input factor on model output (EE"i) calculations, an iterative and automatic procedure has been applied. The results show that the sampling strategy has a significant effect on the parameter significance ranking and that random sampling could lead to a non-proper coverage of the parameter space.