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Content-Independent Avatar Ownership Detection for Preventing Sockpuppet-Enabled Violations in th...

Talkat UIST 2025 · 2025-09-28..10-01· [security, webxr]
links:none on file
name:Guohao Li
links:none on file
name:Lu Zhou
links:none on file
name:li yang
links:none on file
name:Haixin Ye
links:none on file
slides:none on file

AvatarJudger identifies all avatars controlled by the same person using 3D finger-joint telemetry rather than account metadata, claiming cross-device ownership detection with a multi-stage pipeline that combines a random-forest global model and a deep neural net for short-term habits. Evaluation on 2,217 avatars from 30 participants across HoloLens 2, Quest 2, and Vision Pro yields >94% accuracy, finds pink noise in 90% of signals, highlights left-hand fingertip–wrist distances and 44 stable features, and notes time drift and reliance on hand‑to‑keyboard input.

AI-written summary · about

  1. 0:00Introduction to research
  2. 1:09Challenges in avatar identity detection
  3. 2:35Proposed solution using finger movement data
  4. 5:08Feature extraction and methodology
  5. 7:14Evaluation results and accuracy
  6. 8:40Robustness and limitations
  7. 10:06Q&A session
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