机器学习和概率方法用于预测COVID-19传播和病例
Md Sakhawat Hossain1,2, Ravi Goyal3, Natasha K Martin3
1Department of Public Health Sciences, Clemson University, Clemson, SC, USA.
medRxiv : the preprint server for health sciences
|July 16, 2025
概括
这项研究引入了一种机器学习框架,用于预测COVID-19的生殖数量和病例数量. 组合模型,结合空间平滑,与现有方法相比,显著提高了预测准确性.
科学领域:
- 流行病学 流行病学
- 机器学习 机器学习
- 生物统计学 生物统计学
背景情况:
- 准确预测COVID-19传播对于公共卫生至关重要.
- 像EpiNow2这样的现有方法提供了有价值的估计,但可以得到改进.
研究的目的:
- 开发和评估用于预测有效生殖数 (Rt) 和COVID-19病例数的机器学习框架.
- 提高南卡罗来纳州县级预测准确度和稳定性.
主要方法:
- 使用机器学习模型 (回归,随机森林,XGBoost) 开发了一个概率预测框架.
- 整合了EpiNow2的初始Rt估计,并进行了空间平滑.
- 使用概率波桑模型进行病例计数预测.
- 采用组合方法,结合多个模型.
主要成果:
- 整体模型在预测Rt和病例数量方面在7,14和21天的时间范围内始终超过了EpiNow2.
- 在第一个时期,在7天Rt预测中,实现了94.4%的中位数百分比协议 (PA),而EpiNow2.0的比例为87.0%.
- 在病例计数预测中表现出更好的稳定性和性能.
结论:
- 将空间平滑与整体机器学习模型相结合,大大提高了流行病预测的准确性和稳定性.
- 开发的框架为有关COVID-19的公共卫生决策提供了更可靠的工具.
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