根据部分注释对发作发病区的分类
Xuyang Zhao1,2, Qibin Zhao2,3, Toshihisa Tanaka1,2
1Department of Electrical Engineering and Computer Science, Tokyo University of Agriculture and Technology, Tokyo, Japan.
Cognitive neurodynamics
|June 2, 2023
概括
这项研究引入了一种机器学习方法,用于自动识别患者的发作发作区 (SOZ),使用内电脑图 (iEEG) 数据. 该方法显著减少了专家的工作量,并实现了高分类准确性,有助于的诊断.
科学领域:
- 神经科学是一个神经科学.
- 医疗信息学 医疗信息学
- 信号处理 信号处理
背景情况:
- 的诊断依赖于专家对长期内脑电图 (iEEG) 数据的视觉分析,以确定发作区域 (SOZ).
- 这种手动过程耗时,具有挑战性,需要丰富的经验,突出了对自动诊断辅助器的需求.
- 机器学习 (ML) 为提高SOZ识别的效率和准确性提供了潜在的解决方案.
研究的目的:
- 开发和评估一种基于ML的方法,用于准确和有效地分类发作发作区 (SOZ) 和非SOZiEEG数据.
- 为了比较各种特征提取技术的有效性,包括传统方法和先进的转换,用于SOZ检测.
- 调查积极未标记 (PU) 学习的实用性,以尽量减少临床专家的注释负担.
主要方法:
- 内脑电图 (iEEG) 数据被细分为20秒间隔.
- 使用过,,短时间里叶变换 (STFT),波量变换 (WT) 和实证模式分解 (EMD) 进行了特征提取.
- 包括支持向量机器 (SVM),完全连接的神经网络 (FCNN) 和卷积神经网络 (CNN) 在内的分类模型被训练和评估,并结合了积极的未标记 (PU) 学习.
主要成果:
- 拟议的方法使用ML模型实现了SOZ和非SOZ数据的高性能分类.
- 将特征提取方法进行比较,以确定SOZ检测中最具歧视性的特征.
- 集成PU学习显著减少了专家注释工作量,同时保持了高分类准确度.
结论:
- 开发的ML方法为从iEEG数据中识别发作区 (SOZ) 提供了高精度的诊断辅助.
- 功能工程和先进的ML模型,结合PU学习,为减少诊断专家工作量提供了一个有希望的策略.
- 这种方法有可能提高临床实践中SOZ识别的效率和一致性.
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