Qiyu Li

Ph.D. student at UC San Diego

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I am a third-year Ph.D. student at UC San Diego, Halıcıoğlu Data Science Institute (HDSI), where I am fortunately advised by Prof. Haojian Jin. Previously, I obtained my B.S. degree in Computer Science from Peking University.

My research interests lie in the intersection of Privacy & Security and Human-Computer Interaction (HCI). Specifically, I am interested in tackling the growing privacy issues of digital systems by understanding the sociotechnical challenges faced by various stakeholders and designing systems to address these privacy issues.

selected publications

  1. CHI
    PrivacyAkinator: Articulating Key Privacy Design Decisions by Answering LLM-Generated Multiple-choice Questions
    Qiyu Li, Yuen Sum Wong, Yuen Kei Wong, and 2 more authors
    In Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems , Barcelona, Spain, 2026
  2. PETS
    OAuthHub: Mitigating OAuth Data Overaccess through a Local Data Hub
    Qiyu Li, Yuhe Tian, and Haojian Jin
    In Proceedings on Privacy Enhancing Technologies , Calgary, Canada, 2026
  3. IMWUT
    Governing Open Vocabulary Data Leaks Using an Edge LLM through Programming by Example
    Qiyu Li, Jinhe Wen, and Haojian Jin
    Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., Nov 2024
    PDF Video Slides
  4. CCS
    Moderator: Moderating Text-to-Image Diffusion Models through Fine-grained Context-based Policies
    Peiran Wang*, Qiyu Li*, Longxuan Yu, and 3 more authors
    In Proceedings of the 2024 ACM SIGSAC Conference on Computer and Communications Security , Salt Lake City, Utah, USA, Nov 2024
    ACM CCS Distinguished Paper Award
    PDF Code Slides