Journal of System Simulation ›› 2025, Vol. 37 ›› Issue (4): 882-894.doi: 10.16182/j.issn1004731x.joss.23-1532

• Papers • Previous Articles     Next Articles

A Transfer Learning-based Hybrid Model for PM2.5Concentration Prediction

Lu Xinbiao, Ye Chunlin, Chen Yisen, Wu Wen, Chen Yudan   

  1. School of Artificial Intelligence and Automation, Hohai University, Nanjing 211100, China
  • Received:2023-12-14 Revised:2024-02-20 Online:2025-04-17 Published:2025-04-16
  • Contact: Ye Chunlin

Abstract:

In order to solve the problems of increased computational cost due to irrelevant features and decreased prediction accuracy due to the difference in probability distribution caused by the change of data distribution over time in PM2.5 concentration prediction, this paper constructs a hybrid deep learning model TraTCN-LSTM-BiGRU based on migration learning. The meteorological factors related to PM2.5 concentration are selected as the model input using the mean-value heat map algorithm features; the source domain data and target domain data are divided by KL scatter and an adaptive layer is introduced into the model to achieve inter-domain distribution adaptation; the TCN-LSTM-BiGRU model is designed to extract high-level spatial features in multivariate variables using TCN, and the extracted features are fed into the LSTM for extracting time series features. The extracted features are fed into the LSTM to extract time-series features, and the features are fused by residual connection and fed into the BiGRU for prediction. Simulation results show that the model proposed in this paper can effectively predict the future trend of PM2.5, and effectively weaken the influence of the difference in data distribution.

Key words: transfer learning, PM2.5 concentration, mean-value heat map, probability distribution difference, TraTCN-LSTM-BiGRU

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