CLST: Cold-Start Mitigation in Knowledge Tracing by Aligning a Generative Language Model as a Students' Knowledge Tracer

• URL: http://arxiv.org/abs/2406.10296v2
• Date: Tue, 18 Jun 2024 00:53:50 GMT
• Title: CLST: Cold-Start Mitigation in Knowledge Tracing by Aligning a Generative Language Model as a Students' Knowledge Tracer
• Authors: Heeseok Jung, Jaesang Yoo, Yohaan Yoon, Yeonju Jang,
• Abstract summary: We propose cold-start mitigation in knowledge tracing by aligning a generative language model as a students' knowledge tracer (T) We framed the KT task as a natural language processing task, wherein problem-solving data are expressed in natural language. We evaluated the performance of the CLST in situations of data scarcity using various baseline models for comparison.
• Score: 1.6713666776851528
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Knowledge tracing (KT), wherein students' problem-solving histories are used to estimate their current levels of knowledge, has attracted significant interest from researchers. However, most existing KT models were developed with an ID-based paradigm, which exhibits limitations in cold-start performance. These limitations can be mitigated by leveraging the vast quantities of external knowledge possessed by generative large language models (LLMs). In this study, we propose cold-start mitigation in knowledge tracing by aligning a generative language model as a students' knowledge tracer (CLST) as a framework that utilizes a generative LLM as a knowledge tracer. Upon collecting data from math, social studies, and science subjects, we framed the KT task as a natural language processing task, wherein problem-solving data are expressed in natural language, and fine-tuned the generative LLM using the formatted KT dataset. Subsequently, we evaluated the performance of the CLST in situations of data scarcity using various baseline models for comparison. The results indicate that the CLST significantly enhanced performance with a dataset of fewer than 100 students in terms of prediction, reliability, and cross-domain generalization.

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