开放：虚拟康复学习环境中老年患者参与度识别的基准数据集和基线

Engagement in virtual learning is critical to participant satisfaction, performance, and adherence, particularly in domains such as online education and virtual rehabilitation, where interactive communication is essential for success. However, accurately measuring engagement in virtual group settings remains a significant challenge. There is growing interest in leveraging artificial intelligence for large-scale, real-world, and automated engagement recognition. Although engagement has been widely studied among younger populations in academic contexts, research methods and datasets focused on o