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A new hybrid model that combines wavelet analysis (WA) and artificial neural network (ANN) called the wavelet neural network (WNN) model is proposed and applied for runoff time series prediction. In this paper, BP network is selected as the neural network, the Morlet wavelet is chosen as the hidden excitation function of precipitation model, the MATLAB is(More)
Biofuel production in China suffers from many uncertainties due to concerns about the government's support policy and supply of biofuel raw material. Predicting biofuel production is critical to the development of this energy industry. Depending on the biofuel's characteristics, we improve the prediction precision of the conventional prediction method by(More)
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