Yang Liu

I am a first-year PhD student at Aarhus University, Denmark, supervised by Associate Professor Ken Pfeuffer. I research human-computer interaction (HCI) in extended reality (XR).

All interactions are equal, but some interactions are more equal than others.

Different interactions offer different benefits, and we prefer certain interactions in contexts where those benefits matter. I explore how to extend these benefits to new spatial contexts where they were not available before.

For example, we naturally favor direct input, such as direct touch and grab gestures that we used extensively in the physical world. However, these interactions are limited to peripersonal space. SightWarp extends the benefits of direct input to distant target through eye-hand-based proxy summoning. Conversely, StylusPort brings users closer to distant targets for direct interaction.

papers

  1. [CHI '26]
    StylusPort: Investigating Teleportation using Stylus in VR Yang Liu, Qiushi Zhou, Mathias Lystbæk, Aidan Kehoe, Mario Gutierrez, Hans Gellersen, and Ken Pfeuffer Proceedings of the 2026 CHI conference on Human Factors in Computing Systems
  2. [UIST '25]
    At a Glance to Your Fingertips: Enabling Direct Manipulation of Distant Objects Through SightWarp Yang Liu, Thorbjørn Mikkelsen, Zehai Liu, Gengchen Tian, Diako Mardanbegi, Qiushi Zhou, Hans Gellersen, and Ken Pfeuffer The 38th Annual ACM Symposium on User Interface Software and Technology
  3. [ISMAR '25]
    DOF-Separation for 3D Manipulation in XR: Understanding Finger-Wrist Separation to Simultaneously Translate and Rotate Objects Thorbjørn Mikkelsen, Qiushi Zhou, Mathias Lystbæk, Yang Liu, Hans Gellersen, Ken Pfeuffer 2025 IEEE International Symposium on Mixed and Augmented Reality
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