Yudong Han

Yudong Han

Ph.D. Candidate, School of Computer Science, Peking University

Hire me 👋 I am Yudong Han (韩宇栋), a Ph.D. candidate at Peking University working on web graphics and LLMs for software engineering.

  • Position: Currently working on the Harness Team at DeepSeekDeepSeek. Previously a Software Engineer Intern on the Pixel Personalization team at GoogleGoogle (Shanghai), and a Research Intern on the QwenAlibaba Qwen Team.
  • Education: Peking UniversityPh.D. Candidate in Computer Science, School of Computer Science, Peking University; B.S. in Computer Science, School of Electronics Engineering and Computer Science, Peking University.
  • Publications: Published at ACM Multimedia, ICSE, WWW (TheWebConf), SIGIR, ACL, TPDS, and ISSTA — covering browser graphics, software testing, and agentic software engineering.
  • Competitive Programming: 🥈 Silver Medal (Rank 66 Nationally), National Olympiad in Informatics (NOI), 2017.
  • Skills & Interests: 🧑‍💻 Proficient in Rust, Python, TypeScript, C++, and Kotlin; research interests include WebGPU/WebGL optimization, LLM-powered agent systems, and edge computing.

🔗 Check out my Blog for technical notes and writings.

Experience

  • Intern, Harness Team – DeepSeek (Sep. 2026–Present) DeepSeek
  • Software Engineer Intern, Pixel Personalization – Google (Shanghai) (Jun. 2026–Aug. 2026) Google
  • Research Intern – Alibaba Tongyi Lab (通义实验室) (Jul. 2025–May 2026) Alibaba Tongyi Lab
    • Designed and built WebSplatter, a high-performance, high-fidelity in-browser 3D Gaussian Splatting rendering engine, achieving 1.2–4.5× speedups over state-of-the-art web-based 3DGS viewers.
  • President – Peking University Martial Arts Association (Feb. 2025–Present) Peking University
    • Lead a 200-member student association; design and teach a 10-week HEMA saber program combining historical manuscripts with modern sport fencing training.
    • Organized the “Exploring Bajiquan” lecture featuring a national intangible cultural heritage inheritor and a NetEase 24 Entertainment action artist; participated in a panel dialogue on martial arts heritage and game action design. News
  • Teaching Assistant – Introduction to Computing (Python Python) (Sep. 2021–Dec. 2025) Peking University
    • Instructed 500+ undergraduate students at Peking University.
    • Developed an in-browser Python IDE to provide a cross-platform, zero-installation, and privacy-first coding environment for beginners.
    • Created a “Cyber TA” powered by LLMs to offer students 24/7 automated debugging support.
    • Contributed to the course receiving the 2025 GMA Award: AI Special Recognition. Certificate News

📑 Publications

  • [MM'26] WebSplatter: Enabling Cross-Device Efficient Gaussian Splatting in Web Browsers via WebGPU Project Paper
    • Yudong Han, Chao Xu, Xiaodan Ye, Weichen Bi, Zilong Dong, Yun Ma
    • The 34th ACM International Conference on Multimedia, CCF-A[^]
    • Acceptance rate ≈ 25.0% (7,053 submissions)
  • [ICSE'26] Characterizing GPU-Accelerated Web Applications in Browsers Paper
    • Yudong Han, Weichen Bi, Haiyang Shen, Mugeng Liu, Ruibo An, Yun Ma
    • The 48th International Conference on Software Engineering, CCF-A[^]
    • Acceptance rate = 21.9% (321/1,469, research track)
  • [WWW'25] GL2GPU: Accelerating WebGL Applications via Dynamic API Translation to WebGPU Project Paper
    • Yudong Han, Weichen Bi, Ruibo An, Deyu Tian, Qi Yang, Yun Ma
    • The 34th ACM Web Conference, CCF-A[^]
    • Acceptance rate = 19.8% (409/2,062, oral)
  • [TPDS'25] DegaFL: Decentralized Gradient Aggregation for Cross-Silo Federated Learning Paper Code
    • Jialiang Han, Yudong Han, Xiang Jing, Gang Huang, Yun Ma
    • IEEE Transactions on Parallel and Distributed Systems, CCF-A[^]
    • Impact Factor = 5.9 (2025)
  • [SIGIR'25] WebANNS: Fast and Efficient Approximate Nearest Neighbor Search in Web Browsers Paper
    • Mugeng Liu, Siqi Zhong, Qi Yang, Yudong Han, Xuanzhe Liu, Yun Ma
    • The 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, CCF-A[^]
    • Acceptance rate = 22.3% (239/1,071, full paper)
  • [ACL'25] LLM-Powered Test Case Generation for Detecting Bugs in Plausible Programs Paper Code
    • Kaibo Liu, Zhenpeng Chen, Yiyang Liu, Jie M. Zhang, Mark Harman, Yudong Han, Yun Ma, Yihong Dong, Ge Li, Gang Huang
    • The 63rd Annual Meeting of the Association for Computational Linguistics, CCF-A[^]
    • Acceptance rate = 20.3% (1,699/8,360, main conference)
  • [WWW'24] FusionRender: Harnessing WebGPU’s Power for Enhanced Graphics Performance on Web Browsers Paper
    • Weichen Bi, Yun Ma, Yudong Han, Yifan Chen, Deyu Tian, Jiaqi Du
    • The 33rd ACM Web Conference, CCF-A[^]
    • Acceptance rate = 20.2% (405/2,008)
  • [FCS'24] WPIA: Accelerating DNN Warm-up in Web Browsers by Precompiling WebGL Programs Paper
    • Deyu Tian, Yun Ma, Yudong Han, Qi Yang, Haochen Yang, Gang Huang
    • Frontiers of Computer Science, CCF-B[^]
    • Impact Factor = 7.3 (2025)
  • [MSR'24] TrickyBugs: A Dataset of Corner-Case Bugs in Plausible Programs Paper Artifact
    • Kaibo Liu, Yudong Han, Yiyang Liu, Jie M. Zhang, Zhenpeng Chen, Federica Sarro, Gang Huang, Yun Ma
    • The 21st International Conference on Mining Software Repositories, CCF-C[^]
    • Acceptance rate = 28.8% (42/146, technical track)
  • [WISE'24] Web-Based AI Assistant for Medical Imaging: A Case Study on Predicting Spontaneous Preterm Birth via Ultrasound Images Paper
    • Weichen Bi, Zijian Shao, Yudong Han, Jiaqi Du, Yuan Wei, Lijuan Guo, Tianchen Wu, Shuang Li, Yun Ma
    • The 25th International Conference on Web Information Systems Engineering, CCF-C[^]
    • Acceptance rate = 29.9% (110/368, full paper)
  • [ISSTA'23] Who Judges the Judge: An Empirical Study on Online Judge Tests Paper
    • Kaibo Liu, Yudong Han, Jie M. Zhang, Zhenpeng Chen, Federica Sarro, Mark Harman, Gang Huang, Yun Ma
    • The 32nd ACM SIGSOFT International Symposium on Software Testing and Analysis, CCF-A[^]
    • Acceptance rate = 31.5% (117/372)

CCF refers to the China Computer Federation, whose official classification groups recommended international conferences and journals into A, B, and C tiers.

🏆 Honors and Awards

  • Dean’s Scholarship, Institute for Artificial Intelligence, Peking University (2025)
  • School Scholarship, Excellent Research Award, Peking University (2025)
  • Lingjun Linghang Scholarship, Lingjun Investment (2025)
  • The Web Conference Travel Award (2025)
  • GMA Award: AI Special Recognition (2025) Certificate News
  • Fourth Place, 2nd Beijing University Student Historical Fencing Open Competition (2025) 🤺
  • Second Prize, EDAthon – International EDA Algorithm Competition (2022) 🥈
  • Silver Medal (Rank 66 Nationally), National Olympiad in Informatics (NOI) (2017) 🥈

🔧 Technical Skills

  • Languages: Rust, Python, TypeScript/JavaScript, C++, Kotlin
  • Web Technologies: WebGPU, WebGL, Web App Optimization, Web-based LLM/RAG
  • Systems: Linux System Administration, AWS, Edge LLM Deployment, Docker, CI/CD

🥋 Beyond Academia

When I’m not debugging WebGPU shaders or training AI agents, you’ll find me wielding a longsword or saber in HEMA (Historical European Martial Arts) tournaments. As the current president of the Peking University Martial Arts Association, I balance my research pursuits with a passion for reconstructing historical sword combat techniques.

Competing at the 2nd Beijing University Student Historical Fencing Open Competition (April 2025)

Competing in a HEMA saber bout, Beijing, April 2025.