no code implementations • 30 Nov 2023 • Yuhan Li, Hongtao Zhang, Keaven Anderson, Songzi Li, Ruoqing Zhu
In the pharmaceutical industry, the use of artificial intelligence (AI) has seen consistent growth over the past decade.
no code implementations • 30 Oct 2023 • Hanwen Ye, Wenzhuo Zhou, Ruoqing Zhu, Annie Qu
In particular, the proposed learning scheme builds a more general framework which includes the popular outcome weighted learning framework as a special case of ours.
no code implementations • 23 Sep 2023 • Wenzhuo Zhou, Yuhan Li, Ruoqing Zhu, Annie Qu
This task faces two primary challenges: providing a comprehensive and rigorous error quantification in CI estimation, and addressing the distributional shift that results from discrepancies between the distribution induced by the target policy and the offline data-generating process.
no code implementations • 21 Jan 2023 • Yuhan Li, Wenzhuo Zhou, Ruoqing Zhu
Many real-world applications of reinforcement learning (RL) require making decisions in continuous action environments.
1 code implementation • 1 Jun 2022 • Yifan Chen, Tianning Xu, Dilek Hakkani-Tur, Di Jin, Yun Yang, Ruoqing Zhu
This paper revisits the approach from a matrix approximation perspective, and identifies two issues in the existing layer-wise sampling methods: suboptimal sampling probabilities and estimation biases induced by sampling without replacement.
1 code implementation • 26 Apr 2022 • Sarah Elizabeth Formentini, Wei Liang, Ruoqing Zhu
The idea is to estimate the variance-covariance matrix of the cumulative hazard function prediction on a grid of time points.
1 code implementation • 18 Feb 2022 • Tianning Xu, Ruoqing Zhu, Xiaofeng Shao
To bridge these gaps in the literature, we propose a new view of the Hoeffding decomposition for variance estimation that leads to an unbiased estimator.
no code implementations • 10 Feb 2022 • Rui Qiu, Zhou Yu, Ruoqing Zhu
Statistical analysis is increasingly confronted with complex data from metric spaces.
no code implementations • 20 Oct 2021 • Wenzhuo Zhou, Ruoqing Zhu, Annie Qu
To address these challenges, we propose a Proximal Temporal consistency Learning (pT-Learning) framework to estimate an optimal regime that is adaptively adjusted between deterministic and stochastic sparse policy models.
no code implementations • 29 Sep 2021 • Yifan Chen, Tianning Xu, Dilek Hakkani-Tur, Di Jin, Yun Yang, Ruoqing Zhu
To accelerate the training of graph convolutional networks (GCN), many sampling-based methods have been developed for approximating the embedding aggregation.
no code implementations • 17 May 2021 • Yutong Li, Ruoqing Zhu, Annie Qu, Mike Yeh
We represent each dermoscopic image as the style image and transfer the style of the lesion onto a homogeneous content image.
2 code implementations • 27 Jan 2020 • Yifan Cui, Michael R. Kosorok, Erik Sverdrup, Stefan Wager, Ruoqing Zhu
Forest-based methods have recently gained in popularity for non-parametric treatment effect estimation.
no code implementations • 3 Aug 2018 • Ying-Qi Zhao, Ruoqing Zhu, Guanhua Chen, Yingye Zheng
We propose a new method termed stabilized O-learning for deriving stabilized dynamic treatment regimes, which are sequential decision rules for individual patients that not only adapt over the course of the disease progression but also remain consistent over time in format.
Methodology
no code implementations • 7 May 2018 • Jack Yutong Li, Ruoqing Zhu, Annie Qu, Han Ye, Zhankun Sun
The subjects can then be interpreted as a non-subtractive linear combination of orthogonal basis topic vectors.