About me

I’m a Ph.D. student at CSE, HKUST, supervised by Prof. Binhang Yuan. I am also fortunate to collaborate with Prof. Wentao Zhang of PKU-DCML Group. Previously I worked as a research assistant at Peking University DAIR lab, supervised by Prof. Bin Cui.

My research interests mainly focus on Efficient Training for Large Language Models and Multimodal Large Language Models.

Selected Work

• Multi-Step Visual Reasoning with Visual Tokens Scaling and Verification
  Tianyi Bai, Zengjie Hu, Fupeng Sun, Jiantao Qiu, Yizhen Jiang, Guangxin He, Bohan Zeng, Conghui He, Binhang Yuan, Wentao Zhang
  In submission

• Hallucination at a Glance: Controlled Visual Edits and Fine-Grained Multimodal Learning
  Tianyi Bai, Yuxuan Fan, Jiantao Qiu, Fupeng Sun, Jiayi Song, Junlin Han, Zichen Liu, Conghui He, Wentao Zhang, Binhang Yuan
  In submission

• Efficient Pretraining Data Selection for Language Models via Multi-Actor Collaboration
  Tianyi Bai, Ling Yang, Zhen Hao Wong, Fupeng Sun, Jiahui Peng, Xinlin Zhuang, Chi Zhang, Lijun Wu, Jiantao Qiu, Wentao Zhang, Binhang Yuan, Conghui He
  ACL 2025 Main

• A Survey of Multimodal Large Language Model from A Data-centric Perspective
  Tianyi Bai, Hao Liang, Binwang Wan, Ling Yang, Bozhou Li, Yifan Wang, Bin Cui, Conghui He, Binhang Yuan, Wentao Zhang
  ACM Computing Survey in submission

Full list in Google Scholar.

Education

• Hong Kong University of Science and Technology
  PhD in Computer Science and Engineering
  September 2023-present

Intern & Work Experience

• Shanghai Artificial Intelligence Laboratory, Shanghai, China
  May 2024 to May 2025
  Position: Research Intern
  Project:
  • Data-efficient LLM pretraining (supervised by Dr. Conghui He and Dr. Jiantao Qiu) –> Multi-Agent Collaborative Data Selection for Efficient LLM Pretraining
  • Synthetic Data Detection (supervised by Dr. Conghui He and Prof. Weijia Li) –> LOKI: A Comprehensive Synthetic Data Detection Benchmark using Large Multimodal Models
• Peking University, Beijing, China
  January 2024 to Present
  Position: Research Intern supervised by Prof. Wentao Zhang
  Project:
  • Data-centric Generative AI –> A Survey of Multimodal Large Language Model from A Data-centric Perspective
• Peking University, Beijing, China
  July 2021 to July 2023
  Position: Research Intern in Prof. Bin Cui’s Group
  Projects:
  • Transfer Learning for Bayesian Optimization –> First author preprint review: Transfer Learning for Bayesian Optimization: A Survey
  • Transfer Learning based Hyperparameter Optimization –> KDD2022: Transfer Learning based Search Space Design for Hyperparameter Tuning