期刊
IEEE TRANSACTIONS ON EMERGING TOPICS IN COMPUTATIONAL INTELLIGENCE
卷 5, 期 5, 页码 803-812出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TETCI.2020.2996943
关键词
Feature extraction; Heart rate variability; Acceleration; Deep learning; Sleep; Monitoring; Microsoft Windows; Sleep-wake detection; Sensor data; Local features; LSTM; Ensemble deep learning
Sleep-wake detection is crucial for assessing sleep quality. A novel ensemble deep learning framework combining heart rate variability and acceleration data has been proposed in this article. By integrating LF-LSTM network and handcrafted HRV features, the performance of sleep-wake classification is significantly boosted.
Sleep-wake detection is of great importance for the measurement of sleep quality. In this article, a novel ensemble deep learning framework is proposed to detect sleep-wake states based on heart rate variability (HRV) and acceleration. We firstly design a local feature based long short-term memory (LF-LSTM) network to encode temporal dependency and learn features from acceleration data with high sampling frequency. In the meantime, some handcrafted features are extracted from HRV which has a special data format. After that, we develop a unified framework to integrate these two types of features, i.e., the features extracted from HRV and the features learned by LF-LSTM from acceleration, to form a complete feature set. Finally, an efficient ensemble learning scheme is proposed to further boost the performance of sleep-wake classification. A real dataset has been collected to verify the effectiveness of the proposed approach. We also compare with some well-known benchmark approaches for sleep-wake detection. The results demonstrate that the proposed ensemble deep learning method outperforms all the benchmark approaches.
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