Withdrawal Prediction Framework in Virtual Learning Environment

Autor: Nadia Aloui, Faiez Gargouri, Fedia Hlioui
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Service Science, Management, Engineering, and Technology. 11:47-64
ISSN: 1947-9603
1947-959X
Popis: Making the most from virtual learning environments captivates researchers, enhancing the learning experience and reducing the withdrawal rate. In that regard, this article presents a framework for a withdrawal prediction model for the data of the Open University, one of the largest distance-learning institutions. The main contributions of this work cover two main aspects: relational-to-tabular data transformation and data mining for withdrawal prediction. This main steps of the process are: (1) tackling the unbalanced data issue using the SMOTE algorithm; (2) voting over seven different features' selection algorithms; and (3) learning different classifiers for withdrawal prediction. The experimental study demonstrates that the decision trees exhibit better performance in terms of the F-measure value compared to the other tested models. Furthermore, the data balancing and feature selection processes show a crucial role for guiding the predictive model towards a reliable module.
Databáze: OpenAIRE