使用交叉反复量化分析计算不同长度的时间序列的相似度,并应用到睡眠阶段分析
Henning Johannes Drews1, Flavia Felletti2, Håvard Kallestad1,3
1Department of Mental Health, Norwegian University of Science and Technology, Trondheim, Norway.
Scientific reports
|October 4, 2024
概括
交叉递归量化分析 (CRQA) 可以在没有数据处理的情况下有效地分析不平等的时间序列. 通过CRQA检测到的稳定超日睡眠周期 (USC) 预测死亡率,为睡眠研究提供了一种新的方法.
科学领域:
- 复杂系统科学 复杂系统科学
- 生理时间序列分析.
- 睡眠医学研究 睡眠医学研究
背景情况:
- 比较不平等长度的时间序列往往需要数据处理,这可能会引入偏差.
- 分析生理时间序列的传统方法与不同长度的数据作斗争,限制了它们的应用.
- 了解睡眠周期的动态及其与健康结果的关系需要强大的分析工具.
研究的目的:
- 引入和验证交叉反复量化分析 (CRQA) 以分析不平等长度的时间序列,而无需预处理.
- 调查超日NREM/REM睡眠周期 (USC) 复发模式对死亡率的预测能力.
- 为了证明CRQA在分析分类时间序列,如睡眠周期数据中的实用性.
主要方法:
- 交叉递归量化分析 (CRQA) 已在具有连续和离散数据的模型系统上开发和验证.
- CRQA应用于睡眠心脏健康研究 (SHHS) 数据集,这是一个大规模的家庭多睡眠记录.
- 分析了超日睡眠周期 (USC) 的复发模式,以确定它们与全因死亡率的关联.
主要成果:
- 与需要数据操纵 (修剪,拉伸,压缩) 的传统方法相比,CRQA表现出更高的性能.
- 对SHHS数据的分析显示,与USC稳定性相关的复发模式预测了全因死亡率.
- 在对共变量进行控制后,USC复发模式和死亡率之间的关联仍然显著.
结论:
- CRQA是一种强大而公正的工具,用于检测不平等长度的时间序列中的相关性和合,特别是分类数据.
- 根据CRQA的量化,超日睡眠周期的稳定性是所有原因死亡率的重要预测因素.
- CRQA为睡眠研究和复杂生理动态分析提供了有价值的新方法.
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