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- W2095682380 abstract "Artificial neural networks (ANNs) are applied to estimating nitrate concentrations in a typical Midwestern river, i.e., the Upper Sangamon River in Illinois. Throughout the Midwestern U.S., nitrate in raw water has recently become an increasingly important problem. This is due to recent changes in the USEPA nitrate standard and to the increasingly widespread use of chemical fertilizers in agriculture. Back-propagation neural networks (BPNN) and radial basis function neural networks (RBFNN) are compared as to their effectiveness in water quality modeling. Training of the RBFNN is much faster than that of the BPNN and yields more robust results. These two types of ANNs are compared to traditional regression and mechanistic water quality modeling, based on overall accuracy and on the frequency of false-negative prediction. The RBFNN achieves the best results of all models in terms of overall accuracy, and both BPNN and RBFNN yield the same false-negative frequency, which is better than that of the traditional models." @default.
- W2095682380 created "2016-06-24" @default.
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- W2095682380 date "2003-06-17" @default.
- W2095682380 modified "2023-09-25" @default.
- W2095682380 title "Modeling Nitrate Concentration in Natural Streams by Using Artificial Neural Networks" @default.
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- W2095682380 doi "https://doi.org/10.1061/40685(2003)152" @default.
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