Computer and Modernization ›› 2022, Vol. 0 ›› Issue (02): 120-126.

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Automatic Sleep Staging Based on 3CNN-BiGRU

  

  1. (College of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China)
  • Online:2022-03-31 Published:2022-03-31

Abstract: Aiming at the efficiency and accuracy of single-channel EEG signal sleep automatic staging, this paper proposes to use three-scale parallel Convolutional Neural Networks to extract sleep signal features and Bidirectional Gated Recurrent Unit 3CNN-BiGRU automatic sleep staging model to learn the internal time relationship between sleep stages. First, the model performs band-pass filtering on the original single-channel EEG signal, and uses the synthetic minority oversampling technique for class balance, and then sends it to the built model for training and verification experiments. Pre-training and fine-tuning training  are used for optimizing the model, and  10-folds and 20-folds cross-validation is uses to improve training reliability. The experimental results of different models under different data sets show that the 3CNN-BiGRU model has achieved better training efficiency and better staging accuracy.

Key words: EEG signal, sleep staging, convolutional neural network, bidirectional gated recurrent unit, synthetic minority oversampling technique