Prediction of Gas Concentration Based on LSTM-LightGBM Variable Weight Combination Model

Xiangqian Wang, Ningke Xu, Xiangrui Meng and Haoqian Chang
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Xiangqian Wang: School of Computer Science and Technology, Anhui University of Science & Technology, Huainan 232000, China
Ningke Xu: School of Computer Science and Technology, Anhui University of Science & Technology, Huainan 232000, China
Xiangrui Meng: School of Computer Science and Technology, Anhui University of Science & Technology, Huainan 232000, China
Haoqian Chang: School of Computer Science and Technology, Anhui University of Science & Technology, Huainan 232000, China

Energies, 2022, vol. 15, issue 3, 1-17

Abstract: Gas accidents threaten the safety of underground coal mining, which are always accompanied by abnormal gas concentration trend. The purpose of this paper is to improve the prediction accuracy of gas concentration so as to prevent gas accidents and improve the level of coal mine safety management. Combining the LSTM model with the LightGBM model, the LSTM-LightGBM model is proposed with variable weight combination method based on residual assignment, which considers not only the time subsequence feature of data, but also the nonlinear characteristics of data. During the data preprocessing, the optimal parameters of gas concentration prediction are determined through the analysis of the Pearson correlation coefficients of different sensor data. The experimental results demonstrate that the mean absolute errors of LSTM-LighGBM, LSTM and LightGBM are 1.94%, 2.19% and 2.77%, respectively. The accuracy of LSTM-LightGBM variable weight combination model is better than that of the two above models, respectively. In this way, this study provides a novel idea and method for gas accident prevention based on gas concentration prediction.

Keywords: coal mine safety; LSTM; LightGBM; LSTM-LightGBM variable weight combination; gas concentration prediction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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