Forecasting natural gas consumption using Bagging and modified regularization techniques

被引:32
作者
Meira, Erick [1 ,2 ]
Cyrino Oliveira, Fernando Luiz [1 ]
de Menezes, Lilian M. [3 ]
机构
[1] Pontifical Catholic Univ Rio de Janeiro, Dept Ind Engn, Rua Marques Sao Vicente,225,Ed Cardeal Leme, BR-22451900 Rio De Janeiro, Brazil
[2] Brazilian Agcy Res & Innovat Finep, Energy Informat Technol & Serv Div, Praia Flamengo 200,9 Andar, BR-22210030 Rio De Janeiro, Brazil
[3] City Univ London, Bayes Business Sch, Cass, London EC1Y 8TZ, England
关键词
Forecasting; Natural gas demand; Ensembles; Bagging; Regularization; TIME-SERIES; NEURAL-NETWORKS; ENERGY-CONSUMPTION; DECOMPOSITION; COMBINATION; REGRESSION; BOOTSTRAP; ENSEMBLE; COMPETITION; MODELS;
D O I
10.1016/j.eneco.2021.105760
中图分类号
F [经济];
学科分类号
02 ;
摘要
This paper develops a new approach to forecast natural gas consumption via ensembles. It combines Bootstrap Aggregation (Bagging), univariate time series forecasting methods and modified regularization routines. A new variant of Bagging is introduced, which uses Maximum Entropy Bootstrap (MEB) and a modified regularization routine that ensures that the data generating process is kept in the ensemble. Monthly natural gas consumption time series from 18 European countries are considered. A comparative, out-of-sample evaluation is conducted up to 12 steps (a year) ahead, using a comprehensive set of competing forecasting approaches. These range from statistical benchmarks to machine learning methods and state-of-the-art ensembles. Several performance (accuracy) metrics are used, and a sensitivity analysis is undertaken. Overall, the new variant of Bagging is flexible, reliable, and outperforms well-established approaches. Consequently, it is suitable to support decision making in the energy and other sectors.
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页数:23
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