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Short-term electricity demand and gas price forecasts using wavelet transforms and adaptive models

Hang T. Nguyen and Ian T. Nabney

Energy, 2010, vol. 35, issue 9, 3674-3685

Abstract: This paper presents some forecasting techniques for energy demand and price prediction, one day ahead. These techniques combine wavelet transform (WT) with fixed and adaptive machine learning/time series models (multi-layer perceptron (MLP), radial basis functions, linear regression, or GARCH). To create an adaptive model, we use an extended Kalman filter or particle filter to update the parameters continuously on the test set. The adaptive GARCH model is a new contribution, broadening the applicability of GARCH methods. We empirically compared two approaches of combining the WT with prediction models: multicomponent forecasts and direct forecasts. These techniques are applied to large sets of real data (both stationary and non-stationary) from the UK energy markets, so as to provide comparative results that are statistically stronger than those previously reported. The results showed that the forecasting accuracy is significantly improved by using the WT and adaptive models. The best models on the electricity demand/gas price forecast are the adaptive MLP/GARCH with the multicomponent forecast; their NMSEs are 0.02314 and 0.15384 respectively.

Keywords: Multi-layer perceptron; Radial basis function; GARCH; Linear regression; Adaptive models; Wavelet transform (search for similar items in EconPapers)
Date: 2010
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