Abstract
Different LSTM-based models were tested for binary drowsiness detection using the ULg Multimodality Drowsiness Database (DROZY). The dataset contains physiological signals and behavioral measures collected from participants during different experimental conditions designed to induce varying levels of drowsiness. The LSTM models were trained using a sequential approach using the inter-beat intervals, where they were exposed to increasing levels of drowsiness over time. The performance of the models was evaluated in terms of accuracy, precision, recall, F1-score, and AUC. The results showed that the stacked bidirectional LSTM model achieved the highest performance with an accuracy of 0.873, precision of 0.825, recall of 0.793, F1-score of 0.808, and AUC of 0.918. These findings suggest that LSTM-based models can learn to capture the temporal dynamics of drowsiness and make accurate predictions based on the current and previous levels of drowsiness.
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Funding
This work was partially funded by the Instituto de Telecomunicações (IT), by the Fundação para a Ciência e Tecnologia (FCT) under the project UIDB/50008/2020 and under the Scientific Employment Stimulus Individual Call grant 2022.04901.CEECIND, and by the European Regional Development Fund (FEDER) through the Operational Competitiveness and Internationalization Programme (COMPETE 2020), and by National Funds (OE) through the FCT under the LISBOA-01-0247-FEDER-069918 “CardioLeather”.
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Silva, R., Abrunhosa Rodrigues, L., Lourenço, A., Plácido da Silva, H. (2023). Temporal Dynamics of Drowsiness Detection Using LSTM-Based Models. In: Rojas, I., Joya, G., Catala, A. (eds) Advances in Computational Intelligence. IWANN 2023. Lecture Notes in Computer Science, vol 14134. Springer, Cham. https://doi.org/10.1007/978-3-031-43085-5_17
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