💃🏻 About Me

• 🎓 I am a Ph.D. candidate at the Gaoling School of Artificial Intelligence, Renmin University of China, supervised by Prof. Zhicheng Dou and Prof. Ji-Rong Wen.
• Research Interests: Video is the richest window into our dynamic world. My research is driven by the vision of enabling AI to perceive, interpret, and interact with this world through long video understanding, multi-modal understanding, and agentic reasoning. I aim to build intelligent systems capable of digesting hours of visual streams, reasoning over complex temporal narratives, and pinpointing intricate moments with human-like intuition.

📢 News

• [2025.09]: Paper MomentSeeker accepted at NIPS 2025 🎉🎉 Thanks to all co-authors!!

• [2025.06]: Starting this September, I’ll be a visiting student at 🇮🇹University of Trento, supervised by Prof. Dr. Nicu Sebe. Looking forward to new collaborations and challenges! 🚀

• [2025.06]: Released VideoDeepResearch, a novel framework combining a text-only LLM and a multi-modal toolkit to beat SOTA MLLMs. 🔗 Code on GitHub

• [2025.03]: Released MemVid, a memory-enhanced RAG framework for long video understanding.

• [2025.03]: Paper OmniGen accepted at CVPR 2025 🎉

• [2025.02]: Released MomentSeeker, a task-oriented benchmark for long-video moment retrieval.

• [2024.11]: Paper FineRAG accepted at COLING 2024 🥳

• [2023.08]: Paper VILE accepted at CIKM 2023 🥳

📚 Publications

- VideoExplorer: Think With Videos For Agentic Long-Video Understanding | Paper | GitHub | Preprint

H Yuan, Z Liu, J Zhou, H Qian, JR Wen, Z Dou

Proposes an agentic framework for long video understanding that leverages a text-only large reasoning model combined with a modular multi-modal toolkit. Achieves superior performance over state-of-the-art open-source and proprietary MLLMs, including GPT-4o, Qwen2.5-VL, and others, across a wide range of long video understanding benchmarks.

- MemVid: Memory-enhanced Retrieval Augmentation for Long Video Understanding | Paper | Preprint

H Yuan, Z Liu, M Qin, H Qian, Y Shu, Z Dou, JR Wen

Tackles query-less long-video understanding with a memorizing-reasoning-retrieving-focusing pipeline inspired by human memory.

- MomentSeeker: A Comprehensive Benchmark for Long Video Moment Retrieval | Paper | NIPS 2025

H Yuan, J Ni, Y Wang, J Zhou, Z Liang, Z Liu, Z Cao, Z Dou, JR Wen

Introduces a benchmark designed for long video moment retrieval, featuring diverse tasks and multiple query modalities.

- OmniGen: Unified Image Generation | Paper | CVPR 2025

S Xiao, Y Wang, J Zhou, H Yuan, X Xing, R Yan, S Wang, T Huang, Z Liu

A unified diffusion model that handles text-to-image, image editing, and conditional generation via a simple E2E architecture.

- FineRAG: Fine-grained Retrieval-Augmented Text-to-Image Generation | Paper | COLING 2024

H Yuan, Z Zhao, S Wang, S Xiao, M Ni, Z Liu, Z Dou

Breaks the RAG pipeline into 4 stages: query decomposition, candidate selection, retrieval-augmented diffusion, and self-reflection.

- VILE: Block-Aware Visual Enhanced Document Retrieval | Paper | CIKM 2023

H Yuan, Z Dou, Y Zhou, Y Guo, JR Wen

Proposes a dense retrieval model that fuses visual and textual signals to improve web page understanding.

🎓 Education

- Renmin University of China (2022.09 – 2027.06)

• Ph.D. in Artificial Intelligence, Supervisor: Prof. Zhicheng Dou, Prof. Ji-Rong Wen
• GPA: 3.87/4.0, Key Courses: Intelligent Information Retrieval (A), Machine Learning (A)

- Nankai University (2018.09 – 2022.06)

• B.S. in Computer Science, GPA: 91.64/100, Rank: 2/116
• CET-6: 538, CET-4: 585

💼 Experiences

• 2024.09 – 2025.12, Visiting Research Fellow, University of Trento🇮🇹 Supervised by Nicu Sebe

• 2024.05 – 2025.09, Research Intern, BAAI
  Supervised by Zheng Liu

• 2024.02 – 2024.04, Research Intern, Microsoft Research Asia
  Supervised by Chenfei Wu & Nan Duan

🏆 Competition

• 🥈 ICPC Asia Shenyang – Silver Medal
• 🥉 ICPC Asia Kunming – Bronze Medal
• 🥈 Mathematical Modeling Contest – National Second Prize

🎖 Scholarships

• 🥇 First-Class Scholarship, Gaoling School of AI – 2022.12
• 🥇 First-Class Scholarship (Top 5%), Nankai University – 2021.12, 2020.12
• 🏅 National Scholarship (Top 1.2%), Nankai University – 2019.12