Today, a paper I co-authored with colleagues from CYENS, University of Cyprus and cognitiveux which was presented at CHI Greece 2025. The paper is entitled “The Reel Deal: Designing and Evaluating LLM-Generated Short-Form Educational Videos”. It presents a web-based system that uses large language models (LLMs) to automatically generate structured short-form video (i.e., reels) from lecture long-form videos while preserving instructor-authored material.
In a between-subject user study with 62 university students, we evaluated ReelsEd and demonstrated that it outperformed traditional long-form videos in engagement, quiz performance, and task efficiency without increasing cognitive load. Learners expressed high trust in our system and valued its clarity, usefulness, and ease of navigation. Our findings point to new design opportunities for integrating generative AI into educational tools that prioritize usability, learner agency, and pedagogical alignment.
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