Jiazi Bu 卜家梓

I am a 1st year Ph.D. student and research intern at Shanghai AI Laboratory, supervised by Prof. Dahua Lin. I obtained my bachelor's degree in Artificial Intelligence (GuoZhi Class, held by Prof. Xiaoou Tang and Prof. Cewu Lu) from Shanghai Jiao Tong University (SJTU). In addition, I have also worked with Prof. Junchi Yan at the SJTU-ReThinkLab.

My current research focuses on 2D AIGC and VLM. Prior to that, I worked on Computer Vision and AI4Science.

I am actively seeking for a joint PhD opportunity abroad.

News

2025-09: Begin my Ph.D. at Shanghai Artificial Intelligence Laboratory.

2025-09: 1 paper accepted to NeurIPS 2025 (as First Author).

2025-06: 1 paper accepted to ICCV 2025 (as Co-First Author).

2025-02: 1 paper accepted to CVPR 2025 (as First Author).

2025-01: 1 paper accepted to ICLR 2025 (as Co-First Author).

2025-01: 1 paper accepted to SCIENCE CHINA Information Sciences.

2024-09: 1 paper accepted to NeurIPS 2024.

2023-11: 1 paper accepted to AAAI 2024.

2021-08: I enter Shanghai Jiao Tong University as an undergraduate student.

(Co-) First Author Publications

HiFlow: Training-free High-Resolution Image Generation with Flow-Aligned Guidance
Jiazi Bu*, Pengyang Ling*, Yujie Zhou*, Pan Zhang, Tong Wu, Xiaoyi Dong, Yuhang Zang, Yuhang Cao, Dahua Lin, Jiaqi Wang
NeurIPS 2025
Page / Paper / Code

ByTheWay: Boost Your Text-to-Video Generation Model to Higher Quality in a Training-free Way
Jiazi Bu*, Pengyang Ling*, Pan Zhang, Tong Wu, Xiaoyi Dong, Yuhang Zang, Yuhang Cao, Dahua Lin, Jiaqi Wang
CVPR 2025
Paper / Code

DiCache: Let Diffusion Model Determine Its Own Cache
Jiazi Bu*, Pengyang Ling*, Yujie Zhou*, Yibin Wang, Yuhang Zang, Tong Wu, Dahua Lin, Jiaqi Wang
arXiv 2025
Page / Paper / Code

MotionClone: Training-Free Motion Cloning for Controllable Video Generation
Pengyang Ling*, Jiazi Bu*, Pan Zhang, Xiaoyi Dong, Yuhang Zang, Tong Wu, Huaian Chen, Jiaqi Wang, Yi Jin
ICLR 2025
Page / Paper / Code

Light-A-Video: Training-free Video Relighting via Progressive Light Fusion
Yujie Zhou*, Jiazi Bu*, Pengyang Ling*, Pan Zhang, Tong Wu, Qidong Huang, Jinsong Li, Xiaoyi Dong, Yuhang Zang, Yuhang Cao, Anyi Rao, Jiaqi Wang, Li Niu
ICCV 2025
Page / Paper / Code

Co-Author Publications

Pref-GRPO: Pairwise Preference Reward-based GRPO for Stable Text-to-Image Reinforcement Learning
Yibin Wang*, Zhimin Li*, Yuhang Zang*, Yujie Zhou, Jiazi Bu, Chunyu Wang, Qinglin Lu, Cheng Jin, Jiaqi Wang
arXiv 2025
Page / Paper / Code (Pref-GRPO) / Code (UniGenBench)

Unveiling The Matthew Effect Across Channels: Assessing Layer Width Sufficiency via Weight Norm Variance
Yiting Chen, Jiazi Bu, Junchi Yan
NeurIPS 2024
Paper / Code

ViTree: Single-Path Neural Tree for Step-Wise Interpretable Fine-Grained Visual Categorization
Danning Lao, Qi Liu, Jiazi Bu, Junchi Yan, Wei Shen
AAAI 2024
Paper / Code

Drug-drug Interaction Prediction via Hierarchical Structure Modeling
Huaijin Wu, Jiazi Bu, Nianzu Yang, Yao Sun, Haitao Song, Ning Liu, Junchi Yan
SCIENCE CHINA Information Sciences
Paper / Code

Technical Reports

MetaScript: Few-Shot Handwritten Chinese Content Generation via Generative Adversarial Networks
Jiazi Bu*, Qirui Li*, Kailing Wang*, Xiangyuan Xue*, Zhiyuan Zhang*
arXiv 2023
Report / Code

Honors and Awards

2025: Ye Jun and Shen Nanpeng Outstanding Scholarship ￥20000 (Top 30 graduates of SJTU)
2022: Guozhi Scholarship ￥8000
2021~2024: Zhiyuan Scholarship ￥5000 × 4
2022~2025: SJTU Undergraduate Scholarship × 4
2023: CUMCM National First Prize (Top 0.55%)
2025: SJTU Zhiyuan Honor Bachelor's Degree
2023: SJTU President Award
2021: SJTU Outstanding Freshman Training Camp Member
2025: SJTU Outstanding Graduate
2025: SJTU Best Bachelor's Thesis (Top 1%)