End-to-end Sleep Staging with Raw Single Channel EEG using Deep Residual ConvNets
This work addresses sleep monitoring for health applications, offering an incremental improvement in automated sleep stage classification.
The paper tackled sleep staging by proposing a 34-layer deep residual ConvNet that processes raw single-channel EEG signals to classify sleep stages, achieving relative improvements in accuracy of 6.8% and 6.3% on household and multi-source data compared to the state-of-the-art.
Humans approximately spend a third of their life sleeping, which makes monitoring sleep an integral part of well-being. In this paper, a 34-layer deep residual ConvNet architecture for end-to-end sleep staging is proposed. The network takes raw single channel electroencephalogram (Fpz-Cz) signal as input and yields hypnogram annotations for each 30s segments as output. Experiments are carried out for two different scoring standards (5 and 6 stage classification) on the expanded PhysioNet Sleep-EDF dataset, which contains multi-source data from hospital and household polysomnography setups. The performance of the proposed network is compared with that of the state-of-the-art algorithms in patient independent validation tasks. The experimental results demonstrate the superiority of the proposed network compared to the best existing method, providing a relative improvement in epoch-wise average accuracy of 6.8% and 6.3% on the household data and multi-source data, respectively. Codes are made publicly available on Github.