Search Results for author: P. Richard Hahn

Found 11 papers, 5 papers with code

Stochastic Tree Ensembles for Estimating Heterogeneous Effects

no code implementations15 Sep 2022 Nikolay Krantsevich, Jingyu He, P. Richard Hahn

Determining subgroups that respond especially well (or poorly) to specific interventions (medical or policy) requires new supervised learning methods tailored specifically for causal inference.

Causal Inference

Statistical Aspects of SHAP: Functional ANOVA for Model Interpretation

1 code implementation21 Aug 2022 Andrew Herren, P. Richard Hahn

We use this connection to show that challenges in SHAP approximations largely relate to the choice of a feature distribution and the number of $2^p$ ANOVA terms estimated.

Local Gaussian process extrapolation for BART models with applications to causal inference

no code implementations23 Apr 2022 Meijiang Wang, Jingyu He, P. Richard Hahn

Despite this success, standard implementations of BART typically provide inaccurate prediction and overly narrow prediction intervals at points outside the range of the training data.

Causal Inference Gaussian Processes +2

Semi-supervised learning and the question of true versus estimated propensity scores

1 code implementation14 Sep 2020 Andrew Herren, P. Richard Hahn

According to this formulation, large unlabeled data sets could be used to estimate a high dimensional propensity function and causal inference using a much smaller labeled data set could proceed via weighted estimators using the learned propensity scores.

Causal Inference

Stochastic tree ensembles for regularized nonlinear regression

1 code implementation9 Feb 2020 Jingyu He, P. Richard Hahn

This paper develops a novel stochastic tree ensemble method for nonlinear regression, which we refer to as XBART, short for Accelerated Bayesian Additive Regression Trees.

regression

A Survey of Learning Causality with Data: Problems and Methods

3 code implementations25 Sep 2018 Ruocheng Guo, Lu Cheng, Jundong Li, P. Richard Hahn, Huan Liu

This work considers the question of how convenient access to copious data impacts our ability to learn causal effects and relations.

BIG-bench Machine Learning

Efficient sampling for Gaussian linear regression with arbitrary priors

no code implementations14 Jun 2018 P. Richard Hahn, Jingyu He, Hedibert Lopes

This paper develops a slice sampler for Bayesian linear regression models with arbitrary priors.

regression

Bayesian regression tree models for causal inference: regularization, confounding, and heterogeneous effects

4 code implementations29 Jun 2017 P. Richard Hahn, Jared S. Murray, Carlos Carvalho

This paper develops a semi-parametric Bayesian regression model for estimating heterogeneous treatment effects from observational data.

Methodology

A Structural Approach to Coordinate-Free Statistics

no code implementations1 May 2014 Tom LaGatta, P. Richard Hahn

We construct a stochastic version of the OLS estimator, which is a continuous disintegration exactly for the class of "uncorrelated implies independent" (UII) measures.

BIG-bench Machine Learning

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