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A Hybrid Model of Least Squares Support Vector Regression Optimized by Particle Swarm Optimization for Electricity Demand Prediction

Published: 22 February 2019 Publication History

Abstract

To further increase prediction accuracy, improve power management and reduce waste, this paper proposes a hybrid electric load forecasting model based on wavelet analysis (WA) and least squares support vector regression (LSSVR) with particle swarm optimization (PSO) algorithm. Where wavelet analysis is used to transform the original electric data sequence into multi-resolution subsets during the preprocessing stage and then the decomposed subsets are inserted into LSSVR to realize prediction, finally the ultimate prediction results are obtained via the wavelet reconstruction with all the independent prediction results. However, the key to influence forecasting accuracy is the parameters used in the LSSVR, in this paper PSO is used to optimize the kernel parameter δ and the regularization parameter γ of LSSVR and choose the appropriate parameters for the hybrid forecasting model. The effectiveness of the proposed hybrid model has been proved in electric load prediction; the prediction results show that the proposed hybrid model outperforms the Elman networks model, the radial basis function (RBF) neural network model and LSSVR optimized only with PSO. The hybrid model achieves satisfying results, the mean absolute percentage error (MAPE) with 0.907% and the coefficient of determination (R 2) with 0.9936, it offers a higher forecasting precision.

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Cited By

View all
  • (2022)Chaos Prediction of Power Systems by Using Deep LearningProceedings of the 2022 14th International Conference on Machine Learning and Computing10.1145/3529836.3529843(11-17)Online publication date: 18-Feb-2022
  • (2022)Grid Load Forecasting Based on Dual Attention BiGRU and DILATE Loss FunctionIEEE Access10.1109/ACCESS.2022.318233410(64569-64579)Online publication date: 2022
  • (2021)Hierarchical parameter optimization based support vector regression for power load forecastingSustainable Cities and Society10.1016/j.scs.2021.10293771(102937)Online publication date: Aug-2021

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    ICMLC '19: Proceedings of the 2019 11th International Conference on Machine Learning and Computing
    February 2019
    563 pages
    ISBN:9781450366007
    DOI:10.1145/3318299
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 22 February 2019

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    Author Tags

    1. Short-term load forecasting
    2. discrete wavelet transform
    3. least squares support vector regression
    4. particle swarm optimization
    5. single-point

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    View all
    • (2022)Chaos Prediction of Power Systems by Using Deep LearningProceedings of the 2022 14th International Conference on Machine Learning and Computing10.1145/3529836.3529843(11-17)Online publication date: 18-Feb-2022
    • (2022)Grid Load Forecasting Based on Dual Attention BiGRU and DILATE Loss FunctionIEEE Access10.1109/ACCESS.2022.318233410(64569-64579)Online publication date: 2022
    • (2021)Hierarchical parameter optimization based support vector regression for power load forecastingSustainable Cities and Society10.1016/j.scs.2021.10293771(102937)Online publication date: Aug-2021

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