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Zaiyi Chen ABOUT ME

Hi! I am Zaiyi Chen. I received my Ph.D (and B.E) degree in Computer Science from University of Science and Technology of China(USTC) in 2019 (2012). My advisor is Enhong Chen, and my co-advisor is Linli Xu. I joined Prof. Tianbao Yang's group as a visiting scholar, working on first-order stochastic optimization, from Oct. 2016 to Oct. 2017. In 2019, I joined Cainiao Network. Now I am working on practical approximation algorithms in logistics and finance as an advanced algorithm expert.

Email: zaiyi.czy@alibaba-inc.com,
zaiyi.chen@outlook.com
Website: Homepage, Google Scholar
Research Interests: Machine Learning, Optimization, Sampling

News

(New! ) Nearly Optimal Competitive Ratio for Online Allocation Problems with Two-sided Resource Constraints and Finite Requests.
Zaiyi Chen*, Wenbing Ye*, Qixin Zhang*, Haoyuan Hu, Enhong Chen, Yu Yang
Accepted by ICML 2023

(New! ) Communication-Efficient Decentralized Online Continuous DR-Submodular Maximization.
Qixin Zhang, Zengde Deng, Xiangru Jian, Zaiyi Chen, Haoyuan Hu, Yu Yang
arXiv preprint arXiv:2208.08681

(New! ) An Online Algorithm for Chance Constrained Resource Allocation.
Yuwei Chen, Zengde Deng, Yinzhi Zhou, Zaiyi Chen, Yujie Chen, Haoyuan Hu
Accepted by ICASSP 2023

(New! ): Online Learning for Non-monotone Submodular Maximization: From Full Information to Bandit Feedback.
Qixin Zhang, Zengde Deng, Zaiyi Chen, Kuangqi Zhou, Haoyuan Hu, Yu Yang
Accepted by AISTATS 2023

Publications

Nearly Optimal Competitive Ratio for Online Allocation Problems with Two-sided Resource Constraints and Finite Requests.
Zaiyi Chen*, Wenbing Ye*, Qixin Zhang*, Haoyuan Hu, Enhong Chen, Yu Yang (* equal contribution)
ICML 2023

Communication-Efficient Decentralized Online Continuous DR-Submodular Maximization.
Qixin Zhang, Zengde Deng, Xiangru Jian, Zaiyi Chen, Haoyuan Hu, Yu Yang
arXiv preprint arXiv:2208.08681

An Online Algorithm for Chance Constrained Resource Allocation.
Yuwei Chen, Zengde Deng, Yinzhi Zhou, Zaiyi Chen, Yujie Chen, Haoyuan Hu
ICASSP 2023

Online Learning for Non-monotone Submodular Maximization: From Full Information to Bandit Feedback.
Qixin Zhang, Zengde Deng, Zaiyi Chen, Kuangqi Zhou, Haoyuan Hu, Yu Yang
AISTATS 2023

Stochastic Continuous Submodular Maximization: Boosting via Non-oblivious Function.
Qixin Zhang, Zengde Deng, Zaiyi Chen, Yu Yang
Proceedings of the 35th International Conference on Machine Learning, 2022 (ICML 2022)

Katalyst: Boosting Convex Katayusha for Non-Convex Problems with a Large Condition Number
Zaiyi Chen, Yi Xu, Haoyuan Hu and Tianbao Yang
Proceedings of the 36th International Conference on Machine Learning, 2019 (ICML 2019)

Cross Entropy for Robust Learning with Noisy Labels.
Yisen Wang*, Xingjun Ma*, Zaiyi Chen, Yuan Luo1 Jinfeng Yi, James Bailey
Accepted by International Conference on Computer Vision , 2019 (ICCV2019)

Universal Stagewise Learning for Non-Convex Problems with Convergence on Averaged Solutions
Zaiyi Chen, Zhuoning Yuan, Jinfeng Yi, Bowen Zhou, Enhong Chen, Tianbao Yang
The Seventh International Conference on Learning Representations, 2019 (ICLR 2019)

Adam revisited: a weighted past gradients perspective.
Hui Zhong, Zaiyi Chen, Chuan Qin, Zai Huang, Vincent W. Zhen, Tong Xu, Enhong Chen
Frontiers of Computer Science, 2019.

Joint semantic domain alignment and target classifier learning for unsupervised domain adaptation.
DongDong Chen, Yisen Wang, Jinfeng Yi, Zaiyi Chen, ZhiHua Zhou
arXiv preprint arXiv:1906.04053

SADAGRAD: Strongly Adaptive Stochastic Gradient Methods, [Supplement].
Zaiyi Chen, Yi Xu, Enhong Chen and Tianbao Yang
20min talk, Proceedings of the 35th International Conference on Machine Learning, 2018 (ICML 2018)

Fast Stochastic AUC Maximization with O(1/n)-Convergence Rate, [Supplement].
Mingrui Liu*, Xiaoxuan Zhang*, Zaiyi Chen, Xiaoyu Wang, Tianbao Yang
Proceedings of the 35th International Conference on Machine Learning, 2018 (ICML 2018)

Efficient Rank Minimization via Solving Non-convexPenalties by Iterative Shrinkage-Thresholding Algorithm.
Zaiyi Chen
arXiv preprinted, arXiv:1809.05292

Aligned Matrix Completion: Integrating Consistency and Independency in Multiple Domain.
Linli Xu (advisor), Zaiyi Chen, Qi Zhou, Enhong Chen, Nicholas Jing Yuan, Xing Xie
2016 IEEE 16th International Conference on Data Mining (ICDM2016)

Selecting Social Media Responses to News: A Convex Framework Based On Data Reconstruction.
Zaiyi Chen, Linli Xu, Enhong Chen, Biao Chang, Zhefeng Wang, Yitan Li
Proceedings of the 2015 SIAM International Conference on Data Mining (SDM2015)

Working Experiences

Senior Algorithm Expert, Aprl., 2019~Present
Cainiao Network, Alibaba Group, Hangzhou

Intern, Jun., 2018~Dec., 2018
AI Research and Platform, JD.com, Nanjing
Mentor: Jinfeng Yi

Visiting Scholar, Oct., 2016~Oct., 2017
Department of Computer Science, University of Iowa
Supervisor: Prof. Tianbao Yang

Miscellaneous