Lianchen Jia

About Me

---

Currently, I work at JD.com AI Infra team through TGT program, focusing on LLM inference engines and cloud-native inference system scheduling. I received my Ph.D. degree in December 2025 from the Department of Computer Science and Technology at Tsinghua University, advised by Prof. Lifeng Sun . I received my bachelor degree from Department of Computer Science and Technology at Harbin Engineering University in 2021.

We have ample HC for both full-time and intern positions. If you are interested, please feel free to contact me via email.
团队正式员工和实习生HC充足，如有兴趣欢迎邮件联系我。

Publications

---

Conference Papers

• Crucible: Quantifying the Potential of Control Algorithms through LLM Agents.
  Lianchen Jia, Chaoyang Li, Houde Qian, Tianchi Huang, Jiangchuan Liu, Lifeng Sun
  NeurIPS 2025.
  
• Beyond Interpretability: Exploring the Comprehensibility of Adaptive Video Streaming through Large Language Models.
  Lianchen Jia, Chaoyang Li, Ziqi Yuan, Jiahui Chen, Tianchi Huang, Jiangchuan Liu, Lifeng Sun
  ACM Multimedia 2025.
  
• Towards User-level QoE: Large-scale Practice in Personalized Optimization of Adaptive Video Streaming
  Lianchen Jia, Chao Zhou, Chaoyang Li, Jiangchuan Liu, Lifeng Sun
  SIGCOMM 2025.
  
• Meet challenges of RTT Jitter, A Hybrid Internet Congestion Control Algorithm
  Lianchen Jia, Chao Zhou, Tianchi Huang, Chaoyang Li, Lifeng Sun
  WWW 2024.
  
• Dancing with Shackles, Meet the Challenge of Industrial Adaptive Streaming via Offline Reinforcement Learning
  Lianchen Jia, Chao Zhou, Tianchi Huang, Chaoyang Li, Lifeng Sun
  INFOCOM 2024.
  
• RDladder: Resolution-Duration Ladder for VBR-encoded Videos via Imitation Learning
  Lianchen Jia, Chao Zhou, Tianchi Huang, Chaoyang Li, Lifeng Sun
  INFOCOM 2023.
  
• ZiXia: A Reinforcement Learning Approach via Adjusted Ranking Reward for Internet Congestion Control
  Lianchen Jia, Tianchi Huang, Lifeng Sun
  ICC 2022.
  
• Decoupling Defense Strategies for Robust Image Watermarking
  Jiahui Chen, Zehang Deng, Zeyu Zhang, Chaoyang Li, Lianchen Jia, Lifeng Sun
  CVPR 2026.
  
• HiVid: LLM-Guided Video Saliency For Content-Aware VOD And Live Streaming
  Jiahui Chen, Bo Peng, Lianchen Jia, Zeyu Zhang, Tianchi Huang, Lifeng Sun
  ICLR 2026.
  
• Concerto: Client-server Orchestration for Real-Time Video Analytics
  Chaoyang Li, Rui-Xiao Zhang, Tianchi Huang, Lianchen Jia, Lifeng Sun
  ACM Multimedia 2023
  
• Learned Internet Congestion Control for Short Video Uploading
  Tianchi Huang, Chao Zhou, Lianchen Jia, Ruixiao Zhang, Lifeng Sun
  ACM Multimedia 2022.
  

Honors

---

• Beijing Outstanding Graduates, 2025
• National Scholarship~(top 1%), 2019
• Outstanding Graduates~(top 2%) 2021
• Bronze Medal*2, ACM-ICPC Asia Regional Contest, 2019
• Bronze Medal, China Collegiate Programming Contest (CCPC) Regional Contest, 2019

Teaching

---

• TA for Streaming Media Technology, Tsinghua University, Fall 2022, 23, 24.
• TA for Multimedia Computing, Tsinghua University, Spring 2022, 23, 24, 25

Reviewer

---

• ACM Multimedia 2023,24,25
• ICME 2025
• TCSVT