Personalized Learning Path Planning with Goal-Driven Learner State Modeling
This addresses personalized learning for students, but it appears incremental as it builds on existing LLM and reinforcement learning methods.
The paper tackles the problem of designing adaptive learning paths that align with individual goals by introducing Pxplore, a framework that integrates reinforcement learning and LLMs, and shows effectiveness in producing coherent, personalized, and goal-driven paths through extensive experiments.
Personalized Learning Path Planning (PLPP) aims to design adaptive learning paths that align with individual goals. While large language models (LLMs) show potential in personalizing learning experiences, existing approaches often lack mechanisms for goal-aligned planning. We introduce Pxplore, a novel framework for PLPP that integrates a reinforcement-based training paradigm and an LLM-driven educational architecture. We design a structured learner state model and an automated reward function that transforms abstract objectives into computable signals. We train the policy combining supervised fine-tuning (SFT) and Group Relative Policy Optimization (GRPO), and deploy it within a real-world learning platform. Extensive experiments validate Pxplore's effectiveness in producing coherent, personalized, and goal-driven learning paths. We release our code and dataset to facilitate future research.