RobustSleepNet: Transfer learning for automated sleep staging at scale

• URL: http://arxiv.org/abs/2101.02452v1
• Date: Thu, 7 Jan 2021 09:39:08 GMT
• Title: RobustSleepNet: Transfer learning for automated sleep staging at scale
• Authors: Antoine Guillot and Valentin Thorey
• Abstract summary: Sleep disorder diagnosis relies on the analysis of polysomnography (PSG) records. In practice, sleep stage classification relies on the visual inspection of 30-seconds epochs of polysomnography signals. We introduce RobustSleepNet, a deep learning model for automatic sleep stage classification able to handle arbitrary PSG montages.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Sleep disorder diagnosis relies on the analysis of polysomnography (PSG) records. Sleep stages are systematically determined as a preliminary step of this examination. In practice, sleep stage classification relies on the visual inspection of 30-seconds epochs of polysomnography signals. Numerous automatic approaches have been developed to replace this tedious and expensive task. Although these methods demonstrated better performance than human sleep experts on specific datasets, they remain largely unused in sleep clinics. The main reason is that each sleep clinic uses a specific PSG montage that most automatic approaches are unable to handle out-of-the-box. Moreover, even when the PSG montage is compatible, publications have shown that automatic approaches perform poorly on unseen data with different demographics. To address these issues, we introduce RobustSleepNet, a deep learning model for automatic sleep stage classification able to handle arbitrary PSG montages. We trained and evaluated this model in a leave-one-out-dataset fashion on a large corpus of 8 heterogeneous sleep staging datasets to make it robust to demographic changes. When evaluated on an unseen dataset, RobustSleepNet reaches 97% of the F1 of a model trained specifically on this dataset. We then show that finetuning RobustSleepNet, using a part of the unseen dataset, increase the F1 by 2% when compared to a model trained specifically for this dataset. Hence, RobustSleepNet unlocks the possibility to perform high-quality out-of-the-box automatic sleep staging with any clinical setup. It can also be finetuned to reach a state-of-the-art level of performance on a specific population.

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