GELT: A graph embeddings based lite-transformer for knowledge tracing

The development of intelligent education has led to the emergence of knowledge tracing as a fundamental task in the learning process. Traditionally, the knowledge state of each student has been determined by assessing their performance in previous learning activities. In recent years, Deep Learning...

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Bibliographic Details
Published in:PloS one 2024-05, Vol.19 (5), p.e0301714-e0301714
Main Authors: Liang, Zhijie, Wu, Ruixia, Liang, Zhao, Yang, Juan, Wang, Ling, Su, Jianyu
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Artificial intelligence
Biology and Life Sciences
Computer and Information Sciences
Deep Learning
Educational research
Energy conservation
Graph neural networks
Graph theory
Humans
Knowledge
Machine learning
Methods
Neural networks
Neural Networks, Computer
Skills
Social Sciences
Tracing
Transformers
Variables
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Summary:The development of intelligent education has led to the emergence of knowledge tracing as a fundamental task in the learning process. Traditionally, the knowledge state of each student has been determined by assessing their performance in previous learning activities. In recent years, Deep Learning approaches have shown promising results in capturing complex representations of human learning activities. However, the interpretability of these models is often compromised due to the end-to-end training strategy they employ. To address this challenge, we draw inspiration from advancements in graph neural networks and propose a novel model called GELT (Graph Embeddings based Lite-Transformer). The purpose of this model is to uncover and understand the relationships between skills and questions. Additionally, we introduce an energy-saving attention mechanism for predicting knowledge states that is both simple and effective. This approach maintains high prediction accuracy while significantly reducing computational costs compared to conventional attention mechanisms. Extensive experimental results demonstrate the superior performance of our proposed model compared to other state-of-the-art baselines on three publicly available real-world datasets for knowledge tracking.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0301714