Search Results for author: David Bruns-Smith

Found 4 papers, 1 papers with code

Augmented balancing weights as linear regression

no code implementations27 Apr 2023 David Bruns-Smith, Oliver Dukes, Avi Feller, Elizabeth L. Ogburn

These popular doubly robust or double machine learning estimators combine outcome modeling with balancing weights -- weights that achieve covariate balance directly in lieu of estimating and inverting the propensity score.

regression

Robust Fitted-Q-Evaluation and Iteration under Sequentially Exogenous Unobserved Confounders

no code implementations1 Feb 2023 David Bruns-Smith, Angela Zhou

Offline reinforcement learning is important in domains such as medicine, economics, and e-commerce where online experimentation is costly, dangerous or unethical, and where the true model is unknown.

reinforcement-learning valid

Model-Free and Model-Based Policy Evaluation when Causality is Uncertain

1 code implementation2 Apr 2022 David Bruns-Smith

When decision-makers can directly intervene, policy evaluation algorithms give valid causal estimates.

Off-policy evaluation valid

Outcome Assumptions and Duality Theory for Balancing Weights

no code implementations17 Mar 2022 David Bruns-Smith, Avi Feller

We study balancing weight estimators, which reweight outcomes from a source population to estimate missing outcomes in a target population.

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