Matthew (Linghe) Zhang

Matthew (Linghe) Zhang

Fourth-year Statistics and Computer Science student at UC Santa Barbara.

Illusion Classroom

Published:

Illusion Classroom is a synchronized video platform for controlled, AI-mediated classroom research experiments across UCSB labs.

My contribution

I built the full system for 30+ concurrent streams across simultaneous daily experiments, cutting compute cost by 75% and startup latency by 55% while keeping p95 playback drift under 100 ms with sub-second recovery from server failures.

Visit project

Illusion Classroom synchronized video meeting with 39 participants
Synchronized classroom video playback.
Illusion Classroom timed multiple-choice question
Timed questions during a shared video session.
Illusion Classroom simulated-student editor
Editing a simulated student's live state.