Nonparametric Regression with Measurement Error in Banach Spaces
本文提出一种适用于Banach空间值预测变量的非参数回归框架,解决在无内积结构及测量误差情况下的估计问题。
本文提出一种适用于Banach空间值预测变量的非参数回归框架,解决在无内积结构及测量误差情况下的估计问题。
该研究提出了一种核平滑方法,用于在存在左截断死亡和间歇评估非致命事件的数据中非参数估计无事件生存率。
Traditional summary metrics struggle to capture the heterogeneity in individual physical activity intensity distributions. This study proposes a novel approach that integrates wrist-worn accelerometer-derived individual activity intensity hazard functions with functional data analysis. By employing nonparametric modeling, log-transformation, and covariate-adjusted functional principal component analysis (FPCA), the method uncovers dominant modes of variation in population-level physical activity patterns. Moving beyond mean-based summaries, this framework offers a more flexible and interpretable characterization of heterogeneity. Applied to large-scale NHANES data, the approach successfully identifies significant differences in high- and low-intensity activity profiles across population subgroups, demonstrating its superior capability in describing and comparing physical activity distributions.
本文提出一种适用于Banach空间值预测变量的非参数回归框架,解决在无内积结构及测量误差情况下的估计问题。
该研究提出了一种核平滑方法,用于在存在左截断死亡和间歇评估非致命事件的数据中非参数估计无事件生存率。
Traditional summary metrics struggle to capture the heterogeneity in individual physical activity intensity distributions. This study proposes a novel approach that integrates wrist-worn accelerometer-derived individual activity intensity hazard functions with functional data analysis. By employing nonparametric modeling, log-transformation, and covariate-adjusted functional principal component analysis (FPCA), the method uncovers dominant modes of variation in population-level physical activity patterns. Moving beyond mean-based summaries, this framework offers a more flexible and interpretable characterization of heterogeneity. Applied to large-scale NHANES data, the approach successfully identifies significant differences in high- and low-intensity activity profiles across population subgroups, demonstrating its superior capability in describing and comparing physical activity distributions.