Assessing and predicting student performance is crucial forboth universities and students, enabling early interventions to mitigate academic risks. Traditional machine learning approaches typically represent student records as one-dimensional feature vectors, which struggle to capture the chronological structure and interdependencies of courses in credit-based programs. To address this, we propose a novel image-based representation of student records, where columns represent courses and rows correspond to semesters, preserving the temporal sequence of academic progress. Additionally, we employ term frequency–inverse document frequency (TF-IDF) techniques to identify and position highly correlated courses adjacent to each other. A convolutional neural network (CNN) is then trained on these images to predict academic outcomes. Evaluated on a dataset of more than 3,000 students recorded over 10 academic years, our model achieves 92% accuracy in identifying students at academic risk, significantly outperforming traditional machine learning models, which reach only 77% accuracy.

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Graphical Representation of Students Records for Early Performance Prediction Using Deep Learning

  • Quynh-Mai Do Le,
  • Tien-Dat Nguyen,
  • Viet-Tung Nguyen,
  • Dinh-Van Nguyen

摘要

Assessing and predicting student performance is crucial forboth universities and students, enabling early interventions to mitigate academic risks. Traditional machine learning approaches typically represent student records as one-dimensional feature vectors, which struggle to capture the chronological structure and interdependencies of courses in credit-based programs. To address this, we propose a novel image-based representation of student records, where columns represent courses and rows correspond to semesters, preserving the temporal sequence of academic progress. Additionally, we employ term frequency–inverse document frequency (TF-IDF) techniques to identify and position highly correlated courses adjacent to each other. A convolutional neural network (CNN) is then trained on these images to predict academic outcomes. Evaluated on a dataset of more than 3,000 students recorded over 10 academic years, our model achieves 92% accuracy in identifying students at academic risk, significantly outperforming traditional machine learning models, which reach only 77% accuracy.