CogGen: A Learner-Centered Generative AI Architecture for Intelligent Tutoring with Programming Video
This work advances AI-powered tutoring for programming education by combining structured student modeling with interactive AI conversations, offering a scalable approach to enhance video-based learning.
The paper tackles the problem of making programming videos more interactive and adaptive for learners by introducing CogGen, an AI architecture that integrates student modeling with generative AI tutoring, resulting in effective video segmentation and strong pedagogical alignment.
We introduce CogGen, a learner-centered AI architecture that transforms programming videos into interactive, adaptive learning experiences by integrating student modeling with generative AI tutoring based on the Cognitive Apprenticeship framework. The architecture consists of three components: (1) video segmentation by learning goals, (2) a conversational tutoring engine applying Cognitive Apprenticeship strategies, and (3) a student model using Bayesian Knowledge Tracing to adapt instruction. Our technical evaluation demonstrates effective video segmentation accuracy and strong pedagogical alignment across knowledge, method, action, and interaction layers. Ablation studies confirm the necessity of each component in generating effective guidance. This work advances AI-powered tutoring by bridging structured student modeling with interactive AI conversations, offering a scalable approach to enhancing video-based programming education.