The WebGaze software used in this page was introduced in by Papoutsaki and co-workers by a team from Brown university and Georgia Tech in 2016:
- Papoutsaki, A. et al. (2016). "WebGazer: Scalable Webcam Eye Tracking Using User Interactions."
Presented at the International Joint Conference on Artificial Intelligence (IJCAI).
https://www.ijcai.org/Proceedings/16/Papers/540.pdf
While we are at it, you may also find the following research publications relevant to this discussion: