Search Results for author: Zach Shahn

Found 5 papers, 0 papers with code

Estimating heterogeneous treatment effect from survival outcomes via (orthogonal) censoring unbiased learning

no code implementations20 Jan 2024 Shenbo Xu, Raluca Cobzaru, Bang Zheng, Stan N. Finkelstein, Roy E. Welsch, Kenney Ng, Ioanna Tzoulaki, Zach Shahn

In this work, we develop censoring unbiased transformations (CUTs) for survival outcomes both with and without competing risks. After converting time-to-event outcomes using these CUTs, direct application of HTE learners for continuous outcomes yields consistent estimates of heterogeneous cumulative incidence effects, total effects, and separable direct effects.

Efficient estimation of weighted cumulative treatment effects by double/debiased machine learning

no code implementations3 May 2023 Shenbo Xu, Bang Zheng, Bowen Su, Stan Finkelstein, Roy Welsch, Kenney Ng, Ioanna Tzoulaki, Zach Shahn

Estimators targeting overlap weighted effects have been proposed to address the challenge of poor overlap, and methods enabling flexible machine learning for nuisance models address model misspecification.

Causal Inference

ATTENTIVE EXPLAINABILITY FOR PATIENT TEMPORAL EMBEDDING

no code implementations27 Sep 2018 Daby Sow, Mohamed Ghalwash, Zach Shahn, Sanjoy Dey, Moulay Draidia, Li-wei Lehmann

Learning explainable patient temporal embeddings from observational data has mostly ignored the use of RNN architecture that excel in capturing temporal data dependencies but at the expense of explainability.

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