Li Zhang

I am a Postdoctoral Researcher in the Department of Computer Science and Technology at Tsinghua University, working with Prof. Ju Ren. I received my Ph.D. degree from Beijing University of Posts and Telecommunications (BUPT) in 2025, advised by Prof. Mengwei Xu, and obtained my B.Eng. degree from Sichuan University in 2019.

My research interests lie in system/software optimization to power emerging mobile/edge applications. I am currently working on building mobile agents.

Email: li UNDERLINE zhang AT tsinghua DOT edu DOT cn

• [Preprint] MobileViews: A Million-scale and Diverse Mobile GUI Dataset

  Longxi Gao^*, Li Zhang^*, Shihe Wang, Pengzhi Gao, Wei Liu, Jian Luan, Shangguang Wang, Yuanchun Li, Mengwei Xu

  [arXiv][dataset]

• [ACL'26 Findings] Does Chain-of-Thought Reasoning Help Mobile GUI Agents? An Empirical Study

  Li Zhang^*, Longxi Gao^*, Mengwei Xu

  [pdf][arXiv][exemplified traces]

• [ICLR'26] GUI-Shift: Enhancing VLM-Based GUI Agents through Self-supervised Reinforcement Learning

  Longxi Gao, Li Zhang, Pengzhi Gao, Wei Liu, Jian Luan, Mengwei Xu

  [arXiv][poster][code]

• [TMC'26] Prototyping and Analyzing Mobile SoC Clusters as Modern Edge Servers

  Li Zhang, Boqing Shi, Xiang Li, Ao Zhou, Xiao Ma, Shangguang Wang, Mengwei Xu

  [pdf]

• [UIST'24] LlamaTouch: A Faithful and Scalable Testbed for Mobile UI Task Automation

  Li Zhang, Shihe Wang, Xianqing Jia, Zhihan Zheng, Yunhe Yan, Longxi Gao, Yuanchun Li, Mengwei Xu

  [pdf][arXiv][slides][poster][teaser video][code]

• [USENIX ATC'24] More is Different: Prototyping and Analyzing a New Form of Edge Server with Massive Mobile SoCs

  Li Zhang, Zhe Fu, Boqing Shi, Xiang Li, Rujin Lai, Chenyang Yang, Ao Zhou, Xiao Ma, Shangguang Wang, Mengwei Xu

  [pdf][arXiv][slides][code]

• [USENIX ATC'24] High-density Mobile Cloud Gaming on Edge SoC Clusters

  Li Zhang, Shangguang Wang, Mengwei Xu

  [pdf][slides][code]