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We demonstrate how Hahn et al.'s Bayesian Causal Forests model (BCF) can be used to estimate conditional average treatment effects for the longitudinal dataset in the 2022 American Causal Inference Conference Data Challenge. Unfortunately,…

应用统计 · 统计学 2023-05-15 Ajinkya H. Kokandakar , Hyunseung Kang , Sameer K. Deshpande

Determining subgroups that respond especially well (or poorly) to specific interventions (medical or policy) requires new supervised learning methods tailored specifically for causal inference. Bayesian Causal Forest (BCF) is a recent…

机器学习 · 统计学 2022-09-16 Nikolay Krantsevich , Jingyu He , P. Richard Hahn

Bayesian Causal Forests (BCF) is a causal inference machine learning model based on a highly flexible non-parametric regression and classification tool called Bayesian Additive Regression Trees (BART). Motivated by data from the Trends in…

机器学习 · 统计学 2023-03-10 Nathan McJames , Andrew Parnell , Yong Chen Goh , Ann O'Shea

This paper introduces an innovative Bayesian machine learning algorithm to draw interpretable inference on heterogeneous causal effects in the presence of imperfect compliance (e.g., under an irregular assignment mechanism). We show,…

统计方法学 · 统计学 2021-12-02 Falco J. Bargagli-Stoffi , Kristof De-Witte , Giorgio Gnecco

Causal discovery and causal reasoning are classically treated as separate and consecutive tasks: one first infers the causal graph, and then uses it to estimate causal effects of interventions. However, such a two-stage approach is…

Principal stratification analysis evaluates how causal effects of a treatment on a primary outcome vary across strata of units defined by their treatment effect on some intermediate quantity. This endeavor is substantially challenged when…

统计方法学 · 统计学 2024-03-21 Chanmin Kim , Corwin Zigler

Long-running clinical trials offer a unique opportunity to study disease progression and treatment response over time, enabling questions about how and when interventions alter patient trajectories. However, drawing causal conclusions in…

应用统计 · 统计学 2025-08-13 Emma Prevot , Dieter A. Häring , Thomas E. Nichols , Chris C. Holmes , Habib Ganjgahi

Causal inference has recently gained notable attention across various fields like biology, healthcare, and environmental science, especially within explainable artificial intelligence (xAI) systems, for uncovering the causal relationships…

机器学习 · 计算机科学 2025-01-13 Xiaofeng Xiao , Khawlah Alharbi , Pengyu Zhang , Hantang Qin , Xubo Yue

This paper introduces the Difference-in-Differences Bayesian Causal Forest (DiD-BCF), a novel non-parametric model addressing key challenges in DiD estimation, such as staggered adoption and heterogeneous treatment effects. DiD-BCF provides…

统计方法学 · 统计学 2025-06-10 Hugo Gobato Souto , Francisco Louzada Neto

Tailoring treatment assignment to specific individuals can improve the health outcomes, but a single study may offer inadequate information for this purpose. The ability to leverage information from an auxiliary data source deemed to be…

统计方法学 · 统计学 2025-02-05 Ashwini Venkatasubramaniam , Julian Wolfson

We propose a fully Bayesian approach for causal inference with multivariate categorical data based on staged tree models, a class of probabilistic graphical models capable of representing asymmetric and context-specific dependencies. To…

统计方法学 · 统计学 2025-11-06 Andrea Cremaschi , Manuele Leonelli , Gherardo Varando

This paper presents a novel nonlinear regression model for estimating heterogeneous treatment effects from observational data, geared specifically towards situations with small effect sizes, heterogeneous effects, and strong confounding.…

统计方法学 · 统计学 2019-11-14 P. Richard Hahn , Jared S. Murray , Carlos Carvalho

This paper develops a sparsity-inducing version of Bayesian Causal Forests, a recently proposed nonparametric causal regression model that employs Bayesian Additive Regression Trees and is specifically designed to estimate heterogeneous…

统计方法学 · 统计学 2021-11-17 Alberto Caron , Gianluca Baio , Ioanna Manolopoulou

Approximate Bayesian computation (ABC) methods provide an elaborate approach to Bayesian inference on complex models, including model choice. Both theoretical arguments and simulation experiments indicate, however, that model posterior…

Healthcare decision-making requires not only accurate predictions but also insights into how factors influence patient outcomes. While traditional Machine Learning (ML) models excel at predicting outcomes, such as identifying high risk…

机器学习 · 计算机科学 2025-01-28 Sheresh Zahoor , Pietro Liò , Gaël Dias , Mohammed Hasanuzzaman

In causal inference, it is common to estimate the causal effect of a single treatment variable on an outcome. However, practitioners may also be interested in the effect of simultaneous interventions on multiple covariates of a fixed target…

统计方法学 · 统计学 2022-11-24 Jaime Roquero Gimenez , Dominik Rothenhäusler

We are interested in estimating the effect of a treatment applied to individuals at multiple sites, where data is stored locally for each site. Due to privacy constraints, individual-level data cannot be shared across sites; the sites may…

机器学习 · 计算机科学 2023-04-04 Ruoxuan Xiong , Allison Koenecke , Michael Powell , Zhu Shen , Joshua T. Vogelstein , Susan Athey

Decentralized data sources are prevalent in real-world applications, posing a formidable challenge for causal inference. These sources cannot be consolidated into a single entity owing to privacy constraints. The presence of dissimilar data…

机器学习 · 计算机科学 2024-05-31 Thanh Vinh Vo , Young lee , Tze-Yun Leong

We introduce Targeted Smooth Bayesian Causal Forests (tsBCF), a nonparametric Bayesian approach for estimating heterogeneous treatment effects which vary smoothly over a single covariate in the observational data setting. The tsBCF method…

In many scenarios, the observational data needed for causal inferences are spread over two data files. In particular, we consider scenarios where one file includes covariates and the treatment measured on one set of individuals, and a…

统计方法学 · 统计学 2020-09-22 Sharmistha Guha , Jerome P. Reiter , Andrea Mercatanti
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