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E. Tchetgen

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#machine learning Preprint Oct 2026

ProximalFM: Amortized Proximal Causal Inference under Hidden Confounding

Standard causal identification methods often assume no unmeasured confounding and can fail when relevant confounders are unobserved. Proximal causal inference instead uses proxy variables to identify effects under hidden confounding. However, nonparametric proximal estimation can be challenging in practice: recovering...

Christoph Müller, Ayub Kharel, Alex Luedtke et al. · 0 citations
Review Aug 2026

Generalized Hierarchical Conformal Prediction

Many prediction problems arise with data collected in groups. In this setting, hierarchical conformal prediction (HCP) (Lee et al., 2026) provides distribution-free prediction sets for a new observation from a previously unseen group under hierarchical exchangeability. In many applications, however, prediction is condu...

Soham Mallick, E. Tchetgen, Edgar Dobriban et al. · 0 citations
Preprint Jul 2026

A General Exposure-Mapping-Agnostic Framework for Causal Inference under Interference

We develop a general framework for design-based causal inference under interference in cluster experiments conducted via two-stage randomization on a network of interconnected units, without relying on exposure mapping assumptions, exclusion of cross-cluster interference, or Bernoulli treatment assignments. Within this...

Yi-Hui He, E. T. Tchetgen Tchetgen · 0 citations
Preprint Aug 2026

Sharp Minimax Theory for Randomized Experiments

We study minimax-optimal designs and estimators for estimating the sample average treatment effect in finite population randomized experiments, where both design and estimator are unrestricted. For binary potential outcomes, we show this minimax risk is equivalent to the minimax risk $\rho_n^*$ of an estimation problem...

Timothy Sudijono, Edgar Dobriban, E. Tchetgen · 1 citation

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