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Author

Zijian Guo

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3 papers indexed here

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Preprint Jul 2026

Identification and Robust Inference for Multiple Treatments with Possibly Invalid Instruments

The instrumental variable (IV) method is widely used to infer causal effects in observational studies with unmeasured confounding, but invalid instruments can compromise both population identification and finite-sample inference. This paper studies linear IV models with multiple endogenous treatments and possibly inval...

Ziwei Mei, Qingliang Fan, Zijian Guo · 0 citations
#machine learning Open access Sep 2023

Guided Adversarial Robust Transfer Learning with Source Mixing

GART is designed to optimize the most adversarial loss with respect to a collection of source mixture distributions that guarantee excellent prediction performances for the target data and outperforms existing transfer learning methods, attaining higher robustness and accuracy.

X. Xiong, Zijian Guo, T. Cai · 9 citations
Preprint Jul 2026

Identification and Robust Inference for Multiple Treatment Effects with Possibly Invalid Instruments

The instrumental variable (IV) method is widely used to infer causal effects in observational studies with unmeasured confounding, but invalid instruments can compromise both population identification and finite-sample inference. This paper studies linear IV models with multiple endogenous treatments and possibly inval...

Ziwei Mei, Qingliang Fan, Zijian Guo · 0 citations

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