Author

Zachary Izzo

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Preprint Aug 2026

Causal Survival Forests with Negative Controls

We study heterogeneous treatment-effect (HTE) estimation in observational survival studies commonly associated with both censored outcomes and unmeasured confounding. We integrate causal survival forests (CSF) with negative controls (NC) from proximal causal inference and introduce Negative Control Causal Survival Fore...

Zijun Gao, Kyoungeui Hong, Leyi Ma et al. · 0 citations

Jul 2026

Tracing LLM Behavior to the Training Data with Empirical Next-Token Distributions

It is found that for a significant fraction of inputs, the LLM's distribution agrees with the ENTD almost perfectly, and the agreement generally increases with model scale and training compute, but there is a long tail of input sequences where the LLM and ENTD differ significantly.

Zachary Izzo · arXiv.org · 0 citations