About me

I am a first-year PhD student at MAC Lab, Xiamen University, advised by Prof. Liujuan Cao and Assoc. Prof. Xiawu Zheng.

My research focuses on long-horizon visual understanding and multimodal models. I study how visual systems can select informative observations and maintain state over time, so they can understand objects, events, and their relationships in continuous video streams under limited compute and memory.

Building on this work, I want to explore the connection between visual understanding and world modeling: how a system can move from interpreting past events to modeling how its environment changes, and use prediction to support perception and reasoning. My long-term goal is visual intelligence that observes, updates, and reasons continuously, revising and enriching its understanding of the world as new evidence arrives.

Efficient perception selects important observations from video; persistent understanding maintains long-term state; world modeling captures change and predicts what comes next.

News

  1. Starting my first year as a PhD student!

  2. Joined AMap, Alibaba Group, as a research intern.

  3. 🎉 1 paper (LLM Orchestration) has been accepted to ICML 2026.

  4. 🎉 1 paper (WFS-SB) has been accepted to CVPR 2026.

  5. 🎉 1 paper (QuoTA) has been accepted to AAAI 2026.

Selected publications

* Equal contribution

All 9 publications
EFS pipeline for event partitioning, anchor localization, and global refinement2026

arXiv preprint · Equal contribution

Event-Anchored Frame Selection for Effective Long-Video Understanding

Wang Chen*, Yongdong Luo*, Yuhui Zeng, Luojun Lin, Tianyu Xie, Fei Chao, Rongrong Ji, Xiawu Zheng

Partitions video into coherent events, localizes a query-relevant anchor in each event, and applies adaptive MMR for global refinement across coverage, relevance, and diversity.

Education & experience

Xiamen University logo

Xiamen UniversityComputer Science and Technology · PhD in progress

Education

From Sep 2026

AMap · Alibaba Group logo

AMap · Alibaba GroupResearch internship

Multimodal and video understanding

Internship

May 2026 - Present

Xiamen University logo

Xiamen UniversityArtificial Intelligence · Master's

Education

Sep 2024 - Aug 2026

Fuzhou University logo

Fuzhou UniversityArtificial Intelligence · B.Eng.

Began research in generative vision and facial aesthetics

Education

Sep 2020 - Jun 2024

Blog

How Qwen3.5 works

A detailed account of Qwen3.5, from pixels and visual tokens to Gated DeltaNet, Full Attention, MRoPE, and MoE, with equations and tensor shapes for the 9B model.

75 min read

Understanding a world while the video is still running

A close reading of streaming video evaluation, incremental inference, persistent state, and thinking during observation, with a focus on evidence, compute budgets, and questions the system has not seen yet.

50 min read
All posts