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David Childers

3 accepted papers

2024

Timing as an Action: Learning When to Observe and Act

AISTATS 2024poster

In standard reinforcement learning setups, the agent receives observations and performs actions at evenly spaced intervals. However, in many real-world settings, observations are expensive, forcing agents to commit to courses of action for designated periods of time. Consider that doctors, after eac…

Cited by 3SourcePDFScholar
2021

Efficient Online Estimation of Causal Effects by Deciding What to Observe

NeurIPS 2021spotlight

Researchers often face data fusion problems, where multiple data sources are available, each capturing a distinct subset of variables. While problem formulations typically take the data as given, in practice, data acquisition can be an ongoing process. In this paper, we introduce the problem of deci…

2021

Estimating treatment effects with observed confounders and mediators

UAI 2021poster

Given a causal graph, the do-calculus can express treatment effects as functionals of the observational joint distribution that can be estimated empirically. Sometimes the do-calculus identifies multiple valid formulae, prompting us to compare the statistical properties of the corresponding estimato…