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Open AccessArticle

Energy Consumption Load Forecasting Using a Level-Based Random Forest Classifier

1
Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan
2
Department of Electrical Engineering, University of San Jose-Recoletos, Cebu City 6000, Philippines
*
Author to whom correspondence should be addressed.
Symmetry 2019, 11(8), 956; https://doi.org/10.3390/sym11080956
Received: 1 June 2019 / Revised: 6 July 2019 / Accepted: 13 July 2019 / Published: 29 July 2019
(This article belongs to the Special Issue Selected Papers from IIKII 2019 conferences in Symmetry)
Energy consumers may not know whether their next-hour forecasted load is either high or low based on the actual value predicted from their historical data. A conventional method of level prediction with a pattern recognition approach was performed by first predicting the actual numerical values using typical pattern-based regression models, hen classifying them into pattern levels (e.g., low, average, and high). A proposed prediction with pattern recognition scheme was developed to directly predict the desired levels using simpler classifier models without undergoing regression. The proposed pattern recognition classifier was compared to its regression method using a similar algorithm applied to a real-world energy dataset. A random forest (RF) algorithm which outperformed other widely used machine learning (ML) techniques in previous research was used in both methods. Both schemes used similar parameters for training and testing simulations. After 10-time cross training validation and five averaged repeated runs with random permutation per data splitting, the proposed classifier shows better computation speed and higher classification accuracy than the conventional method. However, when the number of its desired levels increases, its prediction accuracy seems to decrease and approaches the accuracy of the conventional method. The developed energy level prediction, which is computationally inexpensive and has a good classification performance, can serve as an alternative forecasting scheme. View Full-Text
Keywords: energy level consumption; pattern recognition; random forest; machine learning; load forecasting; level classification energy level consumption; pattern recognition; random forest; machine learning; load forecasting; level classification
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Chen, Y.-T.; Piedad, E., Jr.; Kuo, C.-C. Energy Consumption Load Forecasting Using a Level-Based Random Forest Classifier. Symmetry 2019, 11, 956.

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