SODor: Long-Term EEG Partitioning for Seizure Onset Detection

• URL: http://arxiv.org/abs/2412.15598v1
• Date: Fri, 20 Dec 2024 06:42:58 GMT
• Title: SODor: Long-Term EEG Partitioning for Seizure Onset Detection
• Authors: Zheng Chen, Yasuko Matsubara, Yasushi Sakurai, Jimeng Sun,
• Abstract summary: We propose a two-stage framework, method, that explicitly models seizure onset through a novel task formulation of subsequence clustering. Our method can correct misclassifications, achieving 5%-11% classification improvements over other baselines and accurately detecting seizure onsets.
• Score: 32.453257844419504
• License:
• Abstract: Deep learning models have recently shown great success in classifying epileptic patients using EEG recordings. Unfortunately, classification-based methods lack a sound mechanism to detect the onset of seizure events. In this work, we propose a two-stage framework, \method, that explicitly models seizure onset through a novel task formulation of subsequence clustering. Given an EEG sequence, the framework first learns a set of second-level embeddings with label supervision. It then employs model-based clustering to explicitly capture long-term temporal dependencies in EEG sequences and identify meaningful subsequences. Epochs within a subsequence share a common cluster assignment (normal or seizure), with cluster or state transitions representing successful onset detections. Extensive experiments on three datasets demonstrate that our method can correct misclassifications, achieving 5%-11% classification improvements over other baselines and accurately detecting seizure onsets.

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