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We present new results for nonparametric identification of causal effects using noisy proxies for unobserved confounders. Our approach builds on the results of \citet{Hu2008} who tackle the problem of general measurement error. We call this…

计量经济学 · 经济学 2023-05-05 Ben Deaner

I develop a new identification strategy for treatment effects when noisy measurements of unobserved confounding factors are available. I use proxy variables to construct a random variable conditional on which treatment variables become…

计量经济学 · 经济学 2022-09-30 Kenichi Nagasawa

Latent confounders are a fundamental challenge for inferring causal effects from observational data. The instrumental variable (IV) approach is a practical way to address this challenge. Existing IV based estimators need a known IV or other…

机器学习 · 计算机科学 2024-12-09 Debo Cheng , Jiuyong Li , Lin Liu , Ziqi Xu , Weijia Zhang , Jixue Liu , Thuc Duy Le

Accurately estimating treatment effects over time is crucial in fields such as precision medicine, epidemiology, economics, and marketing. Many current methods for estimating treatment effects over time assume that all confounders are…

机器学习 · 统计学 2025-11-11 Mouad El Bouchattaoui , Myriam Tami , Benoit Lepetit , Paul-Henry Cournède

The estimation of the treatment effect is often biased in the presence of unobserved confounding variables which are commonly referred to as hidden variables. Although a few methods have been recently proposed to handle the effect of hidden…

统计方法学 · 统计学 2022-08-01 Kevin Jiang , Yang Ning

Recently, interest has grown in the use of proxy variables of unobserved confounding for inferring the causal effect in the presence of unmeasured confounders from observational data. One difficulty inhibiting the practical use is finding…

机器学习 · 计算机科学 2024-05-28 Feng Xie , Zhengming Chen , Shanshan Luo , Wang Miao , Ruichu Cai , Zhi Geng

The fundamental problem in treatment effect estimation from observational data is confounder identification and balancing. Most of the previous methods realized confounder balancing by treating all observed pre-treatment variables as…

统计方法学 · 统计学 2021-10-13 Anpeng Wu , Kun Kuang , Junkun Yuan , Bo Li , Runze Wu , Qiang Zhu , Yueting Zhuang , Fei Wu

We study the identification and estimation of long-term treatment effects when both experimental and observational data are available. Since the long-term outcome is observed only after a long delay, it is not measured in the experimental…

统计方法学 · 统计学 2024-09-04 Guido Imbens , Nathan Kallus , Xiaojie Mao , Yuhao Wang

Data-driven individualized decision making has recently received increasing research interests. Most existing methods rely on the assumption of no unmeasured confounding, which unfortunately cannot be ensured in practice especially in…

统计方法学 · 统计学 2022-12-26 Zhengling Qi , Rui Miao , Xiaoke Zhang

A recent literature considers causal inference using noisy proxies for unobserved confounding factors. The proxies are divided into two sets that are independent conditional on the confounders. One set of proxies are `negative control…

计量经济学 · 经济学 2021-10-11 Ben Deaner

We study the problem of learning conditional average treatment effects (CATE) from observational data with unobserved confounders. The CATE function maps baseline covariates to individual causal effect predictions and is key for…

机器学习 · 统计学 2018-10-09 Nathan Kallus , Xiaojie Mao , Angela Zhou

The heterogeneity of treatment effect (HTE) lies at the heart of precision medicine. Randomized controlled trials are gold-standard for treatment effect estimation but are typically underpowered for heterogeneous effects. In contrast, large…

统计方法学 · 统计学 2024-11-14 Shu Yang , Siyi Liu , Donglin Zeng , Xiaofei Wang

We study the identification and estimation of long-term treatment effects under unobserved confounding by combining an experimental sample, where the long-term outcome is missing, with an observational sample, where the treatment assignment…

计量经济学 · 经济学 2026-01-27 Ting-Chih Hung , Yu-Chang Chen

Convenient access to observational data enables us to learn causal effects without randomized experiments. This research direction draws increasing attention in research areas such as economics, healthcare, and education. For example, we…

社会与信息网络 · 计算机科学 2019-12-03 Ruocheng Guo , Jundong Li , Huan Liu

Estimating individual-level treatment effect from observational data is a fundamental problem in causal inference and has attracted increasing attention in the fields of education, healthcare, and public policy.In this work, we concentrate…

机器学习 · 计算机科学 2025-07-10 Hui Meng , Keping Yang , Xuyu Peng , Bo Zheng

We propose an approach to estimate the effect of multiple simultaneous interventions in the presence of hidden confounders. To overcome the problem of hidden confounding, we consider the setting where we have access to not only the…

统计方法学 · 统计学 2020-06-17 Sorawit Saengkyongam , Ricardo Silva

Estimating treatment effects from observational data is paramount in healthcare, education, and economics, but current deep disentanglement-based methods to address selection bias are insufficiently handling irrelevant variables. We…

机器学习 · 计算机科学 2024-08-27 Ahmad Saeed Khan , Erik Schaffernicht , Johannes Andreas Stork

Marginal structural models are a popular tool for investigating the effects of time-varying treatments, but they require an assumption of no unobserved confounders between the treatment and outcome. With observational data, this assumption…

统计方法学 · 统计学 2021-06-10 Matthew Blackwell , Soichiro Yamauchi

Causal effect estimation for dynamic treatment regimes (DTRs) contributes to sequential decision making. However, censoring and time-dependent confounding under DTRs are challenging as the amount of observational data declines over time due…

机器学习 · 统计学 2021-09-27 Adi Lin , Jie Lu , Junyu Xuan , Fujin Zhu , Guangquan Zhang

Inferring causal effects of continuous-valued treatments from observational data is a crucial task promising to better inform policy- and decision-makers. A critical assumption needed to identify these effects is that all confounding…