Ariadne: Embodied LLMs for Collaborative Problem-Solving in XR

Ariadne is an embodied, AI-powered discussion facilitator designed to mediate group collaboration within Virtual Reality. By intelligently adapting its verbal and non-verbal behaviours to team dynamics, Ariadne helps balance multi-user conversations and reduce cognitive load during collaborative tasks.

poster

Description

Project Ariadne investigates whether an embodied AI facilitator enhances collaborative problem-solving in virtual reality.

We designed a controlled study with two conditions, one with AI facilitation and one without, in which teams of 4 participants work together on an information-asymmetric escape-room task in a shared VR environment. Our evaluation metrics include:

  • group cohesion (measured with GCS-R)
  • memory pooling (measured via TMS coordination + specialization subscales)
  • level of turn-taking
  • cognitive load (measured via NASA-TLX)
  • perceived agent utility (measured via post-questionnaire Likert scale rankings)

The implementation employs a dual-agent Talker-Thinker architecture that combines real-time conversational responsiveness with periodic strategic reasoning. Core technical components include streaming speech-to-text and synthesis, avatar animation control, WebSocket-based session management, and a persistent belief store for facilitation context. This work contributes evidence-based design guidance for human-AI collaboration in immersive educational and professional settings.