Enhanced personalized learning exercise question recommendation model based on knowledge tracing

(1) * Pei Pei Mail (National University Manila Philippines, and Anhui Sanlian University, China)
(2) Rodolfo C. Raga Jr. Mail (National University, Manila, Philippines)
(3) Mideth Abisado Mail (National University, Manila, Philippines)
*corresponding author

Abstract


Personalized exercise question recommendation is a crucial aspect of smart education used to customize educational exercises and questions to individual students' distinct abilities and learning progress. Integrating cognitive diagnosis with deep learning has shown promising results in personalized exercise recommendations. However, the black-box nature of the deep learning model hinders their interpretability. This makes it challenging for educators and students to understand the reasons behind the model's predictions for the next problem, and this limits their opportunity to take an active role in improving the learning process. To address this limitation, this article presents a novel personalized exercise question recommendation model based on knowledge tracing. The approach incorporates graph convolutional neural networks to model the student's abilities, thus enhancing the interpretability of the model. By employing Bidirectional gate recurrent unit (Bi-GRU), the model effectively traces fluctuations in students' abilities over time and predicts their responses to exercise questions. Experimental results demonstrate the effectiveness of this model, achieving an accuracy of 90.8% and 92.6% on ASSISTment 2009 and ASSISTment 2017 datasets, containing 4218 and 1709 student records, respectively. Moreover, the experiment was also conducted to validate the model's exercise difficulty setting. Results indicate an acceptable level of effectiveness in generating appropriate difficulty-level recommendations for individual students. The proposed model contributes to advancing personalized exercise recommendations by offering valuable insights that can lead to more efficient and effective student learning experiences.

Keywords


Knowledge tracing;Personalized learning recommendation;Graph Neural Network;Cognitive diagnosis

   

DOI

https://doi.org/10.26555/ijain.v10i1.1136
      

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