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Wearable Sleep Apnea Detection Method Based on Multi-Task and Multi-AttentionResidualShrinkage Convolutional Neural Network |
Shen Qi1,2,3, Wei Keming1,2,3, Liu Guanzheng1,2,3#* |
1(School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, Guangdong, China) 2(Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, Guangzhou 510006, China) 3(Guangdong Provincial Engineering and Technology Centre of Advanced and Portable Medical Device, Guangzhou 510006, China) |
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Abstract Sleep apnea syndrome (sleep apnea syndrome, SAS) is a common chronic respiratory disorder, often accompanied by a variety of complications, which seriously plagues human health. The SAS detection method of photoplethysmography (PPG) based on wearable devices has attracted extensive attention because of the advantages of low cost, low load and easy to wear. Aiming at the problem of greater interference of PPG signals based on wearable devices, a sleep apnea detection method based on multi-task multi-attention residual shrinkage convolutional neural network was proposed in this study. First of all, 92 wrist PPG sleep data were collected using smart bracelet devices. Next, a residual multi-attention mechanism convolution block was designed, which efficiently integrated the dual important features of the network in the time domain and the channel domain. Then, the residual shrinkage convolution block was introduced to suppress the signal noise and the redundant features of the network. Through the combination of these two blocks, a backbone network for feature extraction was constructed. The results showed that the accuracy, sensitivity, and specificity of the segment detection achieved 81.82%, 70.27%, and 85.81%, respectively; and the accuracy, sensitivity, and specificity of individual detection achieved 95.65%, 88.89%, and 97.30%, respectively. Compared with peers, the proposed method displayed better performance and was able to integrate to the wearable devices for sleep apnea syndrome detection.
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Received: 13 October 2021
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Corresponding Authors:
*E-mail: liugzh3@163.com
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About author:: #Member, Chinese Society of Biomedical Engineering |
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