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Who Are We Missing? A Principled Approach to Characterizing the Underrepresented Population
March 8, 2024, 5:43 a.m. | Harsh Parikh, Rachael Ross, Elizabeth Stuart, Kara Rudolph
cs.LG updates on arXiv.org arxiv.org
Abstract: Randomized controlled trials (RCTs) serve as the cornerstone for understanding causal effects, yet extending inferences to target populations presents challenges due to effect heterogeneity and underrepresentation. Our paper addresses the critical issue of identifying and characterizing underrepresented subgroups in RCTs, proposing a novel framework for refining target populations to improve generalizability. We introduce an optimization-based approach, Rashomon Set of Optimal Trees (ROOT), to characterize underrepresented groups. ROOT optimizes the target subpopulation distribution by minimizing the …
abstract arxiv challenges cs.cy cs.lg effects inferences issue novel paper population serve stat.ap stat.me subgroups type underrepresentation understanding
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