arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2203.00784stat.MEstat.APstat.COstat.ML
收藏

暴露曲线的贝叶斯自适应和可解释函数回归

Bayesian adaptive and interpretable functional regression for exposure profiles

Yunan Gao, Daniel R. Kowal

摘要:

妊娠期接触污染物是一个已知的对生育和健康结果不利的因素。然而,产前空气污染暴露与教育成果之间的联系尚不清楚,特别是怀孕期间易感性的关键窗口。使用一个大的队列的学生在北卡罗来纳州,我们研究了产前每日$\mbox{PM}_{2.5}$暴露和第四年底的年级阅读成绩之间的联系。我们开发和应用一个局部自适应和高度可扩展的贝叶斯回归模型的标量响应函数和标量预测。该模型将B样条基扩展与动态收缩先验配对,以捕获回归表面中的平滑和快速变化的特征。该模型是伴随着一个新的决策分析方法的功能回归,提取敏感性的关键窗口,并指导模型的解释。这些工具有助于识别和解决函数回归模型的可解释性的广泛限制。仿真研究表明,更准确的点估计,更精确的不确定性量化,和更优越的窗口选择比现有的方法。利用所提出的建模,计算和决策分析框架,我们得出结论,产前$\mbox{PM}_{2.5}$暴露在早期和晚期妊娠是最不利的第四年底的年级阅读成绩。

英文摘要:

Pollutant exposure during gestation is a known and adverse factor for birth and health outcomes. However, the links between prenatal air pollution exposures and educational outcomes are less clear, in particular the critical windows of susceptibility during pregnancy. Using a large cohort of students in North Carolina, we study the link between prenatal daily $\mbox{PM}_{2.5}$ exposure and 4th end-of-grade reading scores. We develop and apply a locally adaptive and highly scalable Bayesian regression model for scalar responses with functional and scalar predictors. The proposed model pairs a B-spline basis expansion with dynamic shrinkage priors to capture both smooth and rapidly-changing features in the regression surface. The model is accompanied by a new decision analysis approach for functional regression that extracts the critical windows of susceptibility and guides the model interpretations. These tools help to identify and address broad limitations with the interpretability of functional regression models. Simulation studies demonstrate more accurate point estimation, more precise uncertainty quantification, and far superior window selection than existing approaches. Leveraging the proposed modeling, computational, and decision analysis framework, we conclude that prenatal $\mbox{PM}_{2.5}$ exposure during early and late pregnancy is most adverse for 4th end-of-grade reading scores.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑