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Entropy 2016, 18(9), 330; doi:10.3390/e18090330

Short Term Electrical Load Forecasting Using Mutual Information Based Feature Selection with Generalized Minimum-Redundancy and Maximum-Relevance Criteria

School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China
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Academic Editor: Raúl Alcaraz Martínez
Received: 21 July 2016 / Revised: 5 September 2016 / Accepted: 5 September 2016 / Published: 8 September 2016
(This article belongs to the Section Information Theory)
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Abstract

A feature selection method based on the generalized minimum redundancy and maximum relevance (G-mRMR) is proposed to improve the accuracy of short-term load forecasting (STLF). First, mutual information is calculated to analyze the relations between the original features and the load sequence, as well as the redundancy among the original features. Second, a weighting factor selected by statistical experiments is used to balance the relevance and redundancy of features when using the G-mRMR. Third, each feature is ranked in a descending order according to its relevance and redundancy as computed by G-mRMR. A sequential forward selection method is utilized for choosing the optimal subset. Finally, a STLF predictor is constructed based on random forest with the obtained optimal subset. The effectiveness and improvement of the proposed method was tested with actual load data. View Full-Text
Keywords: short term load forecasting; generalized minimum redundancy and maximum relevance; random forest; sequential forward selection short term load forecasting; generalized minimum redundancy and maximum relevance; random forest; sequential forward selection
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Huang, N.; Hu, Z.; Cai, G.; Yang, D. Short Term Electrical Load Forecasting Using Mutual Information Based Feature Selection with Generalized Minimum-Redundancy and Maximum-Relevance Criteria. Entropy 2016, 18, 330.

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