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stat.ML2025
A Sensitivity Approach to Causal Inference Under Limited Overlap
Yuanzhe Ma, Yian Huang, Hongseok Namkoong
Limited overlap between treated and control groups is a key challenge in observational analysis. Standard approaches like trimming importance weights can reduce variance but introd…
stat.ML2022
Minimax Optimal Estimation of Stability Under Distribution Shift
Hongseok Namkoong, Yuanzhe Ma, Peter W. Glynn
The performance of decision policies and prediction models often deteriorates when applied to environments different from the ones seen during training. To ensure reliable operatio…