So sánh phương pháp

	Ghép điểm xu hướng được tăng cường bằng học máy	Ghép Chính xác Tinh chỉnh (CEM)
Lĩnh vực	Suy luận nhân quả	Suy luận nhân quả
Họ	Regression model	Regression model
Năm ra đời	2004	2011-2012
Người khởi xướng	McCaffrey, Ridgeway & Morral (2004); Westreich, Lessler & Funk (2010)	Iacus, King, & Porro
Loại	Causal inference / matching	Matching / causal inference
Công trình gốc	McCaffrey, D. F., Ridgeway, G., & Morral, A. R. (2004). Propensity score estimation with boosted regression for evaluating causal effects in observational studies. Psychological Methods, 9(4), 403-425.	Iacus, S. M., King, G., & Porro, G. (2012). Causal Inference without Balance Checking: Coarsened Exact Matching. Political Analysis, 20(1), 1-24.
Tên gọi khác	ML-PSM, boosted propensity score matching, ML-augmented PSM, nonparametric propensity score matching	CEM, coarsened matching, monotonic imbalance bounding matching
Liên quan	6	6
Tóm tắt	Machine learning-augmented propensity score matching (ML-PSM) replaces the traditional logistic regression used to estimate propensity scores with flexible machine learning algorithms — such as gradient boosted trees, random forests, or LASSO — to better capture complex, nonlinear relationships among covariates. The resulting richer propensity scores improve covariate balance and reduce bias in the estimated average treatment effect on the treated (ATT).	Coarsened Exact Matching is a preprocessing method that achieves covariate balance by temporarily coarsening continuous variables into bins, exactly matching treated and control units within those bins, and then discarding all unmatched units. Introduced by Iacus, King, and Porro (2011, 2012), it bounds imbalance on each covariate independently, yielding a matched sample on which any estimator can be applied without relying on a propensity score model.