Yang Yong, Qin Xiaolin, Lin Xiaoguang, Wen Han, Peng Yuncong
Chengdu Institute of Computer Application, Chinese Academy of Sciences, Chengdu 610041, P. R. China.
University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2022 Apr 25;39(2):293-300. doi: 10.7507/1001-5515.202107060.
In recent years, epileptic seizure detection based on electroencephalogram (EEG) has attracted the widespread attention of the academic. However, it is difficult to collect data from epileptic seizure, and it is easy to cause over fitting phenomenon under the condition of few training data. In order to solve this problem, this paper took the CHB-MIT epilepsy EEG dataset from Boston Children's Hospital as the research object, and applied wavelet transform for data augmentation by setting different wavelet transform scale factors. In addition, by combining deep learning, ensemble learning, transfer learning and other methods, an epilepsy detection method with high accuracy for specific epilepsy patients was proposed under the condition of insufficient learning samples. In test, the wavelet transform scale factors 2, 4 and 8 were set for experimental comparison and verification. When the wavelet scale factor was 8, the average accuracy, average sensitivity and average specificity was 95.47%, 93.89% and 96.48%, respectively. Through comparative experiments with recent relevant literatures, the advantages of the proposed method were verified. Our results might provide reference for the clinical application of epilepsy detection.
近年来,基于脑电图(EEG)的癫痫发作检测引起了学术界的广泛关注。然而,癫痫发作的数据难以收集,并且在训练数据较少的情况下容易出现过拟合现象。为了解决这个问题,本文以波士顿儿童医院的CHB-MIT癫痫EEG数据集为研究对象,通过设置不同的小波变换尺度因子应用小波变换进行数据增强。此外,通过结合深度学习、集成学习、迁移学习等方法,在学习样本不足的情况下,提出了一种针对特定癫痫患者的高精度癫痫检测方法。在测试中,设置小波变换尺度因子2、4和8进行实验比较和验证。当小波尺度因子为8时,平均准确率、平均灵敏度和平均特异性分别为95.47%、93.89%和96.48%。通过与近期相关文献的对比实验,验证了所提方法的优势。我们的结果可能为癫痫检测的临床应用提供参考。