Voice agent

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Voice agent is a full-duplex, real-time interface for hospital appointment workflows, allowing natural voice interaction with immediate turn-taking and interruption without losing task state. Instead of rigid push-to-talk steps, the system supports continuous conversational flow while keeping patient context and scheduling state synchronized in the background.

Backed by an LLM connected to patient context and scheduling tools, it supports booking lookup, routing, and follow-up coordination through a single conversational workflow. The interaction model is interruptible by design, so users can barge in, redirect the exchange, or stop an in-progress response while the backend continues to manage appointment operations in real time.

publications

  1. Deep learning-enabled accurate assessment of gait impairments in Parkinson's disease using smartphone videos
    Jianda Han* , Zhihua Tian* , Jialing Wu* , Kai Zhang , Shaohua Li , Fahd Baig , Peipei Liu , Ravi Vaidyanathan , Francesca Morgante , Weiguang Huo
    * Equal contribution
    npj Digital Medicine, 2025 IF 15.1
    Source Code
  2. IMU2SKE: Hierarchical Contrastive Learning-Empowered Video-Based Detection of Freezing of Gait in Parkinson's Disease
    Zhihua Tian , Yanwei Zhao , Jianda Han , Weiguang Huo
    In IEEE CBS, 2025
    Source Code