IEEE J Biomed Health Inform. 2019 Jan;23(1):83-94. doi: 10.1109/JBHI.2018.2871678.
The recent advances in pervasive sensing technologies have enabled us to monitor and analyze the multi-channel electroencephalogram (EEG) signals of epilepsy patients to prevent serious outcomes caused by epileptic seizures. To avoid manual visual inspection from long-term EEG readings, automatic EEG seizure detection has garnered increasing attention among researchers. In this paper, we present a unified multi-view deep learning framework to capture brain abnormalities associated with seizures based on multi-channel scalp EEG signals. The proposed approach is an end-to-end model that is able to jointly learn multi-view features from both unsupervised multi-channel EEG reconstruction and supervised seizure detection via spectrogram representation. We construct a new autoencoder-based multi-view learning model by incorporating both inter and intra correlations of EEG channels to unleash the power of multi-channel information. By adding a channel-wise competition mechanism in the training phase, we propose a channel-aware seizure detection module to guide our multi-view structure to focus on important and relevant EEG channels. To validate the effectiveness of the proposed framework, extensive experiments against nine baselines, including both traditional handcrafted feature extraction and conventional deep learning methods, are carried out on a benchmark scalp EEG dataset. Experimental results show that the proposed model is able to achieve higher average accuracy and f1-score at 94.37% and 85.34%, respectively, using 5-fold subject-independent cross validation, demonstrating a powerful and effective method in the task of EEG seizure detection.
最近普及感应技术的进步使我们能够监测和分析癫痫患者的多通道脑电图 (EEG) 信号,以防止癫痫发作引起的严重后果。为了避免对长期 EEG 读数进行手动视觉检查,自动 EEG 癫痫发作检测在研究人员中引起了越来越多的关注。在本文中,我们提出了一种统一的多视图深度学习框架,基于多通道头皮 EEG 信号来捕捉与癫痫发作相关的大脑异常。所提出的方法是一个端到端模型,能够通过频谱图表示从无监督多通道 EEG 重建和监督癫痫发作检测中共同学习多视图特征。我们通过结合 EEG 通道的内部和内部相关性来构建一个新的基于自动编码器的多视图学习模型,以释放多通道信息的力量。通过在训练阶段添加通道间竞争机制,我们提出了一种通道感知的癫痫检测模块,以指导我们的多视图结构关注重要和相关的 EEG 通道。为了验证所提出框架的有效性,我们在基准头皮 EEG 数据集上针对九个基线进行了广泛的实验,包括传统的手工特征提取和常规的深度学习方法。实验结果表明,所提出的模型能够在 5 倍受试者独立交叉验证中分别达到 94.37%和 85.34%的平均准确率和 f1 分数,证明了在 EEG 癫痫发作检测任务中是一种强大而有效的方法。