About Me

Tianhao Ma is currently a first-year M.E. student at University of Tokyo, under the supervision of Prof. Masashi Sugiyama and Prof. Takashi Ishida, and collaborates with Dr. Gang Niu. He received his B.E. degree from Jilin University under the supervision of Prof. Ximing Li. My primary research interest lies in statistical machine learning, learning from label proportions and diffusion LLM. Outside of research, he is an amateur football player and a China National Second-Class Athlete.

If you are interested in discussing with me, feel free to drop me an email (matianhao2120 at g.ecc.u-tokyo.ac.jp).

Furthermore, I am currently seeking PhD positions and am open to discussing potential research opportunities.

Publications

During my master’s study, I focus on weakly supervised learning and design algorithms with theoretical guarantees, with an emphasis on principled consistency and risk analysis.

• ICLR 2026 Learning from Label Proportions via Proportional Value Classification
  Tianhao Ma, Wei Wang, Ximing Li, Gang Niu, Masashi Sugiyama
  International Conference on Learning Representations (ICLR), 2026
  PDF

• ICLR 2026 Rethinking Consistent Multi-Label Classification under Inexact Supervision
  Wei Wang*, Tianhao Ma*, Ming-Kun Xie, Gang Niu, Masashi Sugiyama
  International Conference on Learning Representations (ICLR), 2026
  PDF

My earlier undergraduate research explored heuristic strategies to improve empirical performance of learning from label proportions, focusing on more effective optimization objectives and practical gains.

• CVPR 2025 Forming Auxiliary High-confident Instance-level Loss to Promote Learning from Label Proportions
  Tianhao Ma*, Han Chen*, Juncheng Hu, Yungang Zhu, Ximing Li
  IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025
  PDF

• CVPR 2026 Findings Learning from Label Proportion with Dual-proportion Constraints
  Tianhao Ma, Ximing Li, Changchun Li, Renchu Guan
  IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026
  PDF

*Equal contribution (co-first authors)

Honors and Awards

• National Second Prize Scholarship, 2023
• Yunnan Provincial Campus Football Tournament — 1st Place, 2019
• Jilin Provincial Collegiate Football Championship Super Division — 5th Place, 2021

Educations

• 2025.04 - 2027.03 (expected), Master, University of Tokyo, Tokyo.
• 2020.09 - 2024.07, Bachelor, Jilin University, Jilin.