Two-stage model for epileptic seizures detection on EEG recordings
2023 7th Scientific School Dynamics of Complex Networks and their Applications (DCNA)(2023)
摘要
The purpose of this study is to analyze the applicability of a two-stage model based on convolutional neural networks to improve the quality of seizure detection on real EEG data. Wavelet analysis is used for time-frequency analysis. To localize epileptic discharges, the seizure detection task was reduced to the classification task where the prediction process consists of two steps: the first model provides coarse predictions which are refined by the second model trained on the first model’s errors. As a result of using the proposed two-stage model, the F1-score metric was improved by about 2% compared to a single coarse model, and at the same time led to a significant increase in false negative predictions, which shows the tradeoff brought by the considered approach.
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关键词
EEG,time-frequency analysis,neural networks
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