Zeng, Linzhou, Zhibang Tan, Yougang Ke, and Lingling Xia. “Danmaku-Based Automatic Analysis of Real-Time Online Learning Engagement”. International Journal of Interactive Mobile Technologies (iJIM) 18, no. 08 (April 23, 2024): pp. 127–139. Accessed August 17, 2024. https://online-journals.org/index.php/i-jim/article/view/48025.