Journal of System Simulation ›› 2024, Vol. 36 ›› Issue (9): 2065-2074.doi: 10.16182/j.issn1004731x.joss.23-0588

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A Multimodal Residual Spatial-temporal Fusion Model Based on Automatic Sleep Classification

Guo Yecai1,2, Tong Shuang1   

  1. 1.School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
    2.School of Electronics and Information Engineering, Wuxi University, Wuxi 214105, China
  • Received:2023-05-18 Revised:2023-08-24 Online:2024-09-15 Published:2024-09-30

Abstract:

Highly accurate sleep staging plays a crucial role in correctly assessing sleep conditions. Aiming at the problem that the existing convolutional network cannot obtain the topological characteristics of physiological signals, a sleep staging algorithm based on multi-modal residual spatio-temporal fusion is proposed. Time-frequency images and spatio-temporal images are obtained using short-time Fourier transform and adaptive map convolution, which are converted into high-dimensional feature vectors; lightweight interaction of feature information flow is realized through time-frequency feature and spatio-temporal feature extraction modules; the feature enhancement fusion module fuses feature information to outputs sleep staging results. The results show that the model has a high accuracy. On the ISRUC-S3 data set, the overall accuracy is 85.3%, the F1 score is 83.8%, Cohen’s kappa is 81%, and the N1 stage accuracy reaches 69.81%. Experiments on the ISRUC-S1 dataset demonstrate the generality of the model.

Key words: sleep staging, multi-view fusion, graph convolutional network, deep learning, electroencephalogram

CLC Number: