AI助教实时答疑，提升在线学习主动参与度。
From Passive Watching to Active Learning: Empowering Proactive Participation in Digital Classrooms with AI Video Assistant
- 用大模型打造上下文感知的互动问答界面
- 年轻学习者与灵活工作人群知识提升显著
- 97.6%回复准确率，适合远程学习者使用
在在线教育中，创新工具对提升学习效果至关重要。SAM（Study with AI Mentor）是一个将教育视频与基于大语言模型的上下文感知聊天界面相结合的先进平台。SAM鼓励学生实时提问并探索模糊概念，提供个性化、情境相关的帮助，包括公式、幻灯片和图像的解释。我们通过两项研究评估了SAM：一项涉及25名大学生，另一项有80名众包参与者，采用前后知识测试对比使用SAM的实验组与对照组。结果表明，使用SAM的学习者在年轻学习者及灵活工作环境人群（如学生）中表现出更显著的知识增长，且聊天机器人回复准确率达97.6%。参与者对SAM的易用性和有效性反馈积极。SAM的主动学习模式不仅提升了学习成效，还赋能学生全面掌控自身学习体验，代表了在线学习工具的未来方向。
原文摘要 · Abstract (English)
In online education, innovative tools are crucial for enhancing learning outcomes. SAM (Study with AI Mentor) is an advanced platform that integrates educational videos with a context-aware chat interface powered by large language models. SAM encourages students to ask questions and explore unclear concepts in real time, offering personalized, context-specific assistance, including explanations of formulas, slides, and images. We evaluated SAM in two studies: one with 25 university students and another with 80 crowdsourced participants, using pre- and post-knowledge tests to compare a group using SAM and a control group. The results demonstrated that SAM users achieved greater knowledge gains specifically for younger learners and individuals in flexible working environments, such as students, supported by a 97.6% accuracy rate in the chatbot's responses. Participants also provided positive feedback on SAM's usability and effectiveness. SAM's proactive approach to learning not only enhances learning outcomes but also empowers students to take full ownership of their educational experience, representing a promising future direction for online learning tools.
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