Bias-Targeted Nonparametric Balancing for Stable Causal Mediation Analysis
面向稳定因果中介分析的偏差针对性非参数平衡
Influence function (IF)-based estimators are widely used in mediation analysis due to their modeling flexibility, but standard implementations require direct estimation of the distribution functions of the mediator and treatment variables. Since these functions appear in the denominator of IF-based estimators, they can induce significant instability, particularly with continuous mediators. In this work, we propose an alternative implementation of IF-based estimators for both…