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Sample size planning for conditional counterfactual mean estimation with a K-armed randomized experiment
March 8, 2024, 5:41 a.m. | Gabriel Ruiz
cs.LG updates on arXiv.org arxiv.org
Abstract: We cover how to determine a sufficiently large sample size for a $K$-armed randomized experiment in order to estimate conditional counterfactual expectations in data-driven subgroups. The sub-groups can be output by any feature space partitioning algorithm, including as defined by binning users having similar predictive scores or as defined by a learned policy tree. After carefully specifying the inference target, a minimum confidence level, and a maximum margin of error, the key is to turn …
abstract algorithm arxiv counterfactual cs.lg data data-driven experiment feature mean partitioning planning sample space stat.me stat.ml subgroups type
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