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Predicting Liquid Natural Gas Consumption via the Multilayer Perceptron Algorithm Using Bayesian Hyperparameter Autotuning

Author

Listed:
  • Hyungah Lee

    (Energy Environment IT Convergence Group, Plant Engineering Center, Institute for Advanced Engineering, Yongin-si 17180, Republic of Korea)

  • Woojin Cho

    (Energy Environment IT Convergence Group, Plant Engineering Center, Institute for Advanced Engineering, Yongin-si 17180, Republic of Korea)

  • Jong-hyeok Park

    (Energy Environment IT Convergence Group, Plant Engineering Center, Institute for Advanced Engineering, Yongin-si 17180, Republic of Korea)

  • Jae-hoi Gu

    (Energy Environment IT Convergence Group, Plant Engineering Center, Institute for Advanced Engineering, Yongin-si 17180, Republic of Korea)

Abstract

Reductions in energy consumption and greenhouse gas emissions are required globally. Under this background, the Multilayer Perceptron machine-learning algorithm was used to predict liquid natural gas consumption to improve energy consumption efficiency. Setting hyperparameters remains challenging in machine-learning-based prediction. Here, to improve prediction efficiency, hyperparameter autotuning via Bayesian optimization was used to identify the optimal combination of the eight key hyperparameters. The autotuned model was validated by comparing its predictive performance with that of a base model (with all hyperparameters set to the default values) using the coefficient of variation of root-mean-square error (CvRMSE) and coefficient of determination ( R 2 ) based on the Measurement and Verification Guideline evaluation metrics. To confirm the model’s industrial applicability, its predictions were compared with values measured at a small-to-medium-sized food factory. The optimized model performed better than the base model, achieving a CvRMSE of 12.30% and an R 2 of 0.94, and achieving a predictive accuracy of 91.49%. By predicting energy consumption, these findings are expected to promote the efficient operation and management of energy in the food industry.

Suggested Citation

  • Hyungah Lee & Woojin Cho & Jong-hyeok Park & Jae-hoi Gu, 2024. "Predicting Liquid Natural Gas Consumption via the Multilayer Perceptron Algorithm Using Bayesian Hyperparameter Autotuning," Energies, MDPI, vol. 17(10), pages 1-16, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:10:p:2290-:d:1391540
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    References listed on IDEAS

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    3. Hyungah Lee & Dongju Kim & Jae-Hoi Gu, 2023. "Prediction of Food Factory Energy Consumption Using MLP and SVR Algorithms," Energies, MDPI, vol. 16(3), pages 1-21, February.
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