新的统计时间序列数据增强和基于机器学习的简单呼吸数据的分类用于呼吸数字双胞胎模型
Sagheer Khan1, Aaesha Alzaabi1, Tharmalingam Ratnarajah1
1School of Engineering, The University of Edinburgh, Edinburgh EH9 3FF, UK.
Computers in biology and medicine
|December 7, 2023
概括
本研究引入了一种新的数据增强方法,用于创建合成呼吸数据,用于开发用于呼吸监测的数字双胞胎 (DT). 该方法提高了机器学习模型的准确性,以改善医疗保健决策.
科学领域:
- 数字健康数字健康
- 生物医学工程 生物医学工程
- 医疗保健中的机器学习
背景情况:
- 数字双胞胎 (DT) 在医疗保健4.0.0中提供个性化的医疗保健和决策支持.
- 精确监测呼吸衰竭需要广泛的患者数据,用于机器学习 (ML) 和深度学习 (DL) 模型.
- 呼吸数据的有限可用性阻碍了大规模的DT实施.
研究的目的:
- 提出一种新的统计时间序列数据增强方法,用于生成合成呼吸数据.
- 通过相关性分析验证增强方法 (皮尔森,斯皮尔曼,肯德尔).
- 开发一种方法来创建一个呼吸数字双胞胎 (DT) 模型.
主要方法:
- 使用ESP32 Wi-Fi通道状态信息 (CSI) 传感器收集不引人注目的呼吸数据.
- 应用数据无声化 (光滑,过) 和主要组件分析 (PCA) 来减少维度.
- 利用一种新的统计时间序列数据增强技术来生成合成数据.
主要成果:
- 从原始呼吸数据来估计每分钟呼吸次数 (BPM) 的准确率达到了92.3%.
- 包装树组合算法展示了最好的ML监督分类性能.
- 使用结合真实数据和合成数据,获得了89.2% (二元类) 和83.7% (多类) 的准确性.
结论:
- 拟议的数据增强方法有效地生成合成呼吸数据,解决数据稀缺问题.
- 开发的方法提供了构建呼吸数字双胞胎模型的蓝图.
- 增强ML模型性能与增强数据支持改善呼吸系统监测和医疗干预措施.
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