将多部位微生物组数据与临床参数集成,可以通过使用自编码器提高死亡率预测
Binaya Dhakal1, Lakshmi Sai Kishore Savarapu1, Khaled Sayed1
1Electrical and Computer Engineering and Computer Science Department, University of New Haven, West Haven, CT, USA.
Journal of microbiological methods
|September 19, 2025
概括
这项研究引入了一种自编码模型,用于使用口腔,肺部和肠道部分的人类微生物组数据来预测死亡风险. 结合微生物组和临床数据的综合方法实现了98%的预测准确性,优于单个数据来源.
科学领域:
- 微生物学 微生物学
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
背景情况:
- 人类微生物组对健康至关重要,但由于高度的维度和复杂性,很难建模.
- 传统的机器学习方法在死亡风险预测方面与复杂的微生物相互作用作斗争.
研究的目的:
- 开发一个新的框架来预测死亡风险,使用多部件的人类微生物组数据.
- 在高维微生物组数据中增强特征提取和模式识别.
主要方法:
- 利用基于自编码器的模型将微生物组数据编码到一个低维的潜空间.
- 评估了三种数据配置:仅微生物组分类,仅临床数据和综合数据.
- 研究了z-score规范化预处理对种群数据的影响.
主要成果:
- 结合微生物组和临床数据的综合模型实现了更高的预测准确性 (98%的肺微生物组).
- 仅仅临床数据显示性能不一致 (70-90%),而微生物组数据单独是最弱的 (53-65%).
- Z-score正常化显著改善了所有部分的性能和回忆指标.
结论:
- 使用多部件微生物组和临床数据的综合方法提供了优越的死亡风险预测.
- 微生物组的体位特异性在预测建模中发挥着独特的作用.
- 自动编码器模型为复杂的微生物群数据集提供了有效的维度缩小.
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