Yu-Jie Zhang @ RIKEN AIP

Postdoc Researcher
Imperfect Information Learning Team
RIKEN Center for Advanced Intelligence Project
Email: yu-jie.zhang [at] riken.jp

[CV, Google Scholar, Github]
zhangyj_photo1.jpg 

About Me

I am a postdoctoral researcher in the Imperfect Information Learning Team at RIKEN AIP. I earned my Ph.D. from the University of Tokyo under the supervision of Prof. Masashi Sugiyama. Previously, I completed my M.Sc. with the LAMDA Group at Nanjing University, under the supervision of Prof. Zhi-Hua Zhou.

Research Interests

My research interests include Machine Learning and Data Mining. Currently, I am interested in


Conference Papers

Journal Paper

  • Optimistic Online Mirror Descent for Bridging Stochastic and Adversarial Online Convex Optimization. [conference version, Journal version, arXiv, bibtex]
    Sijia Chen, Yu-Jie Zhang, Wei-Wei Tu, Peng Zhao, and Lijun Zhang.
    Journal of Machine Learning Research (JMLR), to appear, 2024.

  • Adaptivity and Non-stationarity: Problem-dependent Dynamic Regret for Online Convex Optimization. [PDF, arXiv, bibtex]
    Peng Zhao, Yu-Jie Zhang, Lijun Zhang, and Zhi-Hua Zhou.
    Journal of Machine Learning Research (JMLR), 25(98):1−52, 2024.

  • Exploratory Machine Learning with Unknown Unknowns. [PDF, code, bibtex]
    Peng Zhao, Jia-Wei Shan, Yu-Jie Zhang and Zhi-Hua Zhou.
    Artificial Intelligence (AIJ), to appear, 2024.

Academic Service

  • Reviewer for Conferences: AAAI (2021, 2024), AISTATS (2021, 2022, 2023, 2024), ECAI (2020), ICLR (2022, 2023, 2024), ICML (2022, 2023, 2024), IJCAI (2020, 2021, 2022, 2023), NeurIPS (2021, 2022, 2023,2024), UAI (2022, 2023, 2024)
  • Reviewer for Journals: JMLR, IEEE TPAMI, FCS

Awards & Honors

  • NeurIPS 2023 Top Reviewer, 2023
  • UAI 2023 Top Reviewer, 2023
  • NeurIPS 2022 Top Reviewer, 2022
  • Todai Fellowship, 2021
  • Excellent Graduate of Nanjing University, Nanjing, 2021
  • National Graduate Scholarship for Master Student, MOE of PRC, 2020
  • Excellent Graduate of Tongji University, Shanghai, 2018
  • Shanghai Undergraduate Scholarship, Shanghai, 2017, 2016