no code implementations • 2 May 2025 • Zhenyu Wang, Molei Liu, Jing Lei, Francis Bach, Zijian Guo
To address this challenge, we employ the Fantope relaxation, reformulating the problem as a convex minimax optimization, with the objective defined as the maximum loss across sources.
no code implementations • 29 Jan 2025 • Yihong Gu, Cong Fang, Yang Xu, Zijian Guo, Jianqing Fan
Pursuing invariant prediction from heterogeneous environments opens the door to learning causality in a purely data-driven way and has several applications in causal discovery and robust transfer learning.
no code implementations • 16 Dec 2024 • Zhenyu Wang, Yifan Hu, Peter Bühlmann, Zijian Guo
To address both challenges, we focus on the additive intervention regime and propose nearly necessary and sufficient conditions for ensuring that the invariant prediction model matches the causal outcome model.
no code implementations • 30 Apr 2024 • Longlong Jing, Ruichi Yu, Xu Chen, Zhengli Zhao, Shiwei Sheng, Colin Graber, Qi Chen, Qinru Li, Shangxuan Wu, Han Deng, Sangjin Lee, Chris Sweeney, Qiurui He, Wei-Chih Hung, Tong He, Xingyi Zhou, Farshid Moussavi, Zijian Guo, Yin Zhou, Mingxing Tan, Weilong Yang, CongCong Li
In this paper, we propose STT, a Stateful Tracking model built with Transformers, that can consistently track objects in the scenes while also predicting their states accurately.
no code implementations • 27 Feb 2024 • Zijian Guo, Weichao Zhou, Wenchao Li
Offline safe reinforcement learning (RL) aims to train a constraint satisfaction policy from a fixed dataset.
1 code implementation • 12 Oct 2023 • Qingliang Fan, Zijian Guo, Ziwei Mei, Cun-Hui Zhang
Using the control function approach for identification, we implement a regularized nonparametric estimation to obtain an initial estimator of the model.
no code implementations • 12 Sep 2023 • Xin Xiong, Zijian Guo, Tianxi Cai
Many existing transfer learning methods rely on leveraging information from source data that closely resembles the target data.
1 code implementation • 5 Sep 2023 • Zhenyu Wang, Peter Bühlmann, Zijian Guo
To address such potential distribution shifts, we develop an unsupervised domain adaptation approach that leverages labeled data from multiple source domains and unlabeled data from the target domain.
Federated Learning
Multi-Source Unsupervised Domain Adaptation
+2
3 code implementations • 15 Jun 2023 • Zuxin Liu, Zijian Guo, Haohong Lin, Yihang Yao, Jiacheng Zhu, Zhepeng Cen, Hanjiang Hu, Wenhao Yu, Tingnan Zhang, Jie Tan, Ding Zhao
This paper presents a comprehensive benchmarking suite tailored to offline safe reinforcement learning (RL) challenges, aiming to foster progress in the development and evaluation of safe learning algorithms in both the training and deployment phases.
no code implementations • 2 Apr 2023 • David Carl, Corinne Emmenegger, Peter Bühlmann, Zijian Guo
TSCI implements a two-stage algorithm.
no code implementations • 9 Mar 2023 • Yucheng Xu, Li Nanbo, Arushi Goel, Zijian Guo, Zonghai Yao, Hamidreza Kasaei, Mohammadreze Kasaei, Zhibin Li
Videos depict the change of complex dynamical systems over time in the form of discrete image sequences.
1 code implementation • 14 Feb 2023 • Zuxin Liu, Zijian Guo, Yihang Yao, Zhepeng Cen, Wenhao Yu, Tingnan Zhang, Ding Zhao
Safe reinforcement learning (RL) trains a constraint satisfaction policy by interacting with the environment.
1 code implementation • 29 May 2022 • Zuxin Liu, Zijian Guo, Zhepeng Cen, huan zhang, Jie Tan, Bo Li, Ding Zhao
One interesting and counter-intuitive finding is that the maximum reward attack is strong, as it can both induce unsafe behaviors and make the attack stealthy by maintaining the reward.
1 code implementation • 30 Apr 2022 • Qingliang Fan, Zijian Guo, Ziwei Mei
The novelty of the proposed test is that it allows the number of covariates and instruments to be larger than the sample size.
1 code implementation • 24 Mar 2022 • Zijian Guo, Mengchu Zheng, Peter Bühlmann
The success of TSCI requires the instrumental variable's effect on treatment to differ from its violation form.
no code implementations • 4 May 2021 • Jue Hou, Zijian Guo, Tianxi Cai
Risk modeling with EHR data is challenging due to a lack of direct observations on the disease outcome, and the high dimensionality of the candidate predictors.
no code implementations • 15 Nov 2020 • Zijian Guo
Integrative analysis of data from multiple sources is critical to making generalizable discoveries.
1 code implementation • 8 Apr 2020 • Zijian Guo, Domagoj Ćevid, Peter Bühlmann
Inferring causal relationships or related associations from observational data can be invalidated by the existence of hidden confounding.
Methodology Statistics Theory Statistics Theory