| C. Troussas, A. Krouska, Ph. Mylonas, C. Sgouropoulou |
| PersonaGPT: A Context-Aware Personalization Engine for Educational Chatbots Using Dynamic Learner Personas and Reflexive Dialogue |
| 20th International Workshop on Semantic and Social Media Adaptation & Personalization (SMAP 2025), 27-28 November 2025, Mystras, Greece |
|
ABSTRACT
|
| Artificial intelligence has transformed educational technology, with conversational agents becoming increasingly prominent in supporting student learning. While these chatbots offer accessibility and scalability, many still lack the capacity to personalize interactions based on the learner¢s evolving cognitive and emotional state. Current systems often rely on static profiles or shallow adaptation mechanisms that fail to account for real-time fluctuations in confidence, engagement, and comprehension. This paper presents PersonaGPT, a novel personalization engine for educational chatbots that constructs and continuously updates dynamic learner personas using behavioral signals, linguistic cues, and meta-dialogue patterns. The system integrates these personas into a reflexive dialogue engine, enabling the chatbot to adapt its tone, explanation depth, and instructional strategy in real time. PersonaGPT was implemented as a modular, web-based tutoring system using GPT-4, a Flask backend, and React.js interface, designed to teach SQL programming. In a controlled experiment with 81 university students, PersonaGPT significantly outperformed static and non-personalized chatbots in task completion, knowledge retention, and learner engagement. The study demonstrates that real-time persona modeling and reflexive dialogue enhance both the effectiveness and user experience of AI-powered education.
|
| 27 November , 2025 |
| C. Troussas, A. Krouska, Ph. Mylonas, C. Sgouropoulou, "PersonaGPT: A Context-Aware Personalization Engine for Educational Chatbots Using Dynamic Learner Personas and Reflexive Dialogue", 20th International Workshop on Semantic and Social Media Adaptation & Personalization (SMAP 2025), 27-28 November 2025, Mystras, Greece |
[  PDF] [
BibTex] [
Print] [
 Back] |
