human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "Gaze and Touch Interaction on Tablets"
  Abstract: We explore how gaze can support touch interaction on tablets. When holding the device, the free thumb is normally limited in reach, but can provide an opportunity for indirect touch input. Here we propose gaze and touch input, where touches redirect to the gaze target. This provides whole-screen reachability while only using a single hand for both holding and input. We present a user study comparing this technique to direct-touch, showing that users are slightly slower but can utilise one-handed use with less physical effort. To enable interaction with small targets, we introduce CursorShift, a method that uses gaze to provide users temporal control over cursors during direct-touch interactions. Taken together, users can employ three techniques on tablets: direct-touch, gaze and touch, and cursor input. In three applications, we explore how these techniques can coexist in the same UI and demonstrate how tablet tasks can be performed with thumb-only input of the holding hand, and with it describe novel interaction techniques for gaze based tablet interaction.

Connected through hyperedge HE-1 (induced by source paper "Design considerations for combining augmented reality with intelligent tutors"):
  with members:
    (none)

Connected through hyperedge HE-2 (induced by source paper "Pre-Touch Sensing for Mobile Interaction"):
  with members:
    - "Occlusion-aware interfaces"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science