Search Results for author: Weibin Mo

Found 5 papers, 1 papers with code

Minimax Regret Learning for Data with Heterogeneous Subgroups

no code implementations2 May 2024 Weibin Mo, Weijing Tang, Songkai Xue, Yufeng Liu, Ji Zhu

Given the observed groups of data, we develop a min-max-regret (MMR) learning framework for general supervised learning, which targets to minimize the worst-group regret.

PASTA: Pessimistic Assortment Optimization

no code implementations8 Feb 2023 Juncheng Dong, Weibin Mo, Zhengling Qi, Cong Shi, Ethan X. Fang, Vahid Tarokh

The objective is to use the offline dataset to find an optimal assortment.

Rejoinder: Learning Optimal Distributionally Robust Individualized Treatment Rules

no code implementations17 Oct 2021 Weibin Mo, Zhengling Qi, Yufeng Liu

However, when the growth of testing sample size available for training is in a slower order, efficient value function estimates may not perform well anymore.

Efficient Learning of Optimal Individualized Treatment Rules for Heteroscedastic or Misspecified Treatment-Free Effect Models

1 code implementation6 Sep 2021 Weibin Mo, Yufeng Liu

Other than potential misspecified nuisance models, most existing methods do not account for the potential problem when the variance of outcome is heterogeneous among covariates and treatment.

Decision Making

Learning Optimal Distributionally Robust Individualized Treatment Rules

no code implementations26 Jun 2020 Weibin Mo, Zhengling Qi, Yufeng Liu

We propose a novel distributionally robust ITR (DR-ITR) framework that maximizes the worst-case value function across the values under a set of underlying distributions that are "close" to the training distribution.

Decision Making

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