Electricity consumption forecasting has vital importance for the energy planning of a country. Of the enabling machine learning models, support vector regression (SVR) has been widely used to set up forecasting models due to its superior generalization for unseen data. However, one key procedure for the predictive modeling is feature selection, which might hurt the prediction accuracy if improper features were selected. In this regard, a modified discrete particle swarm optimization (MDPSO) was employed for feature selection in this study, and then MDPSO-SVR hybrid mode was built to predict future electricity consumption. Compared with other well-established counterparts, MDPSO-SVR model consistently performs best in two real-world electricity consumption datasets, which indicates that MDPSO for feature selection can improve the prediction accuracy and the SVR equipped with the MDPSO can be a promised alternative for electricity consumption forecasting.
翻译:电耗预测对一个国家的能源规划至关重要。在有利的机器学习模型中,支持矢量回归(SVR)由于对不可见数据的高度普及而被广泛用于建立预测模型。然而,预测模型的一个关键程序是特征选择,如果选择了不适当的特征,可能会损害预测的准确性。在这方面,本研究采用了修改后的离散粒群优化(MDPSO)作为特征选择,随后又建立了MDPSO-SVR混合模式来预测未来的电力消费。与其他成熟的对应方相比,MDPSO-SVR模型在两个真实世界的电力消费数据集中一贯表现最佳,这表明用于特征选择的MDPSO可以提高预测的准确性,而配有MDPSO的SO可以承诺用电量预测的一种替代办法。