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Statistical Inference for Heterogeneous Treatment Effects Discovered by Generic Machine Learning in Randomized Experiments
April 23, 2024, 4:48 a.m. | Kosuke Imai, Michael Lingzhi Li
stat.ML updates on arXiv.org arxiv.org
Abstract: Researchers are increasingly turning to machine learning (ML) algorithms to investigate causal heterogeneity in randomized experiments. Despite their promise, ML algorithms may fail to accurately ascertain heterogeneous treatment effects under practical settings with many covariates and small sample size. In addition, the quantification of estimation uncertainty remains a challenge. We develop a general approach to statistical inference for heterogeneous treatment effects discovered by a generic ML algorithm. We apply the Neyman's repeated sampling framework to …
abstract algorithms arxiv causal effects inference machine machine learning ml algorithms practical researchers sample small stat.ap statistical stat.me stat.ml treatment type
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