Towards Credible and Effective Data-Driven Decision-Making
summary
Describes a concrete method for minimax-optimal policy learning under unobserved confounding: parameterize confounding with a sensitivity model, plug that into a robustified version of inverse propensity weighting, and solve a robust ERM to pick policies that minimize worst-case regret. Gives decision-theoretic guarantees (out-of-sample improvement versus baseline when the uncertainty set is well specified) and statistical rates for the optimistic estimator, plus a case study comparing an observational study to a clinical trial.
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chapters (9)
- 0:00Introduction
- 0:38Challenges of causal inference
- 3:08Unobserved confounders
- 3:42Recap
- 4:12Performance Metrics
- 4:53Robust Machine Learning Recipe
- 6:46Guarantees
- 7:41Interleaving
- 7:57Conclusion
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