Search Results for author: Yongyi Guo

Found 5 papers, 0 papers with code

reBandit: Random Effects based Online RL algorithm for Reducing Cannabis Use

no code implementations27 Feb 2024 Susobhan Ghosh, Yongyi Guo, Pei-Yao Hung, Lara Coughlin, Erin Bonar, Inbal Nahum-Shani, Maureen Walton, Susan Murphy

The escalating prevalence of cannabis use, and associated cannabis-use disorder (CUD), poses a significant public health challenge globally.

Reinforcement Learning (RL)

Online learning in bandits with predicted context

no code implementations26 Jul 2023 Yongyi Guo, Ziping Xu, Susan Murphy

When the context error is non-vanishing, classical bandit algorithms fail to achieve sublinear regret.

Decision Making

Policy Optimization Using Semi-parametric Models for Dynamic Pricing

no code implementations13 Sep 2021 Jianqing Fan, Yongyi Guo, Mengxin Yu

$F(\cdot)$ with $m$-th order derivative ($m\geq 2$), our policy achieves a regret upper bound of $\tilde{O}_{d}(T^{\frac{2m+1}{4m-1}})$, where $T$ is time horizon and $\tilde{O}_{d}$ is the order that hides logarithmic terms and the dimensionality of feature $d$.

Decision Making

Machine Learning for Variance Reduction in Online Experiments

no code implementations NeurIPS 2021 Yongyi Guo, Dominic Coey, Mikael Konutgan, Wenting Li, Chris Schoener, Matt Goldman

We consider the problem of variance reduction in randomized controlled trials, through the use of covariates correlated with the outcome but independent of the treatment.

BIG-bench Machine Learning

Communication-Efficient Accurate Statistical Estimation

no code implementations12 Jun 2019 Jianqing Fan, Yongyi Guo, Kaizheng Wang

In addition, we give the conditions under which the one-step CEASE estimator is statistically efficient.

Distributed Optimization

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