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 BUPT in 2025, advised by Prof. Mengwei Xu.

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

Here is my CV.

Email: li UNDERLINE zhang AT tsinghua DOT edu DOT cn

• [Preprint] Does Chain-of-Thought Reasoning Help Mobile GUI Agent? An Empirical Study

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

  [arXiv]

• [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]

• [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][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

• [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]

• [IMC'21] From Cloud to Edge: A First Look at Public Edge Platforms

  Mengwei Xu, Zhe Fu, Xiao Ma, Li Zhang, Yanan Li, Feng Qian, Shangguang Wang, Ke Li, Jingyu Yang, Xuanzhe Liu

  [pdf][slides][dataset]