Machine Learning, Causal Inference, Meta Learning, Instruments, Observational Studies.
function. One critical component of R-learner is the R-loss function for treatment effect estimation using cross-fitting. Given n independent and identically distributed examples with (xᵢ, yᵢ, tᵢ), i = 1, …, n, where xᵢ denotes per-person features, yᵢ ∈ R is the observed outcome, and tᵢ is the