Machine learning for university management: Micro Cluster Learning to predict "active" students

Abstract

The strategy process of universities can span several years into the future with prediction of student performance being an important aspect for university governance. “Micro Cluster Learning” is proposed, by applying a hybrid of machine learning and ARIMA models to micro clusters of a university’s administrative data. The aim was to predict a performance indicator one to three academic years in the future and to compare the results of five years and to official statistics. Micro clusters were generated and a stack of 20 machine learning algorithms was applied to each cluster. The algorithms and their hyperparameter settings were determined in an explorative manual pre-selection process. The results show deviations from the official statistics between 2 % and 8 % (SD = 6 %) for one academic year in the future, 1–29 % (SD = 19 %) for two and 1–17 % (SD = 11 %) for three years. Model performance correlated with increasing details in the micro clusters and was better in larger micro clusters. The method is very flexible and can be used in a multitude of different university settings worldwide and for different outcomes of interest, e.g., grades or student status. However, the flexibility goes along with a tedious setup and very long runtimes. Future improvements with increased automation are warranted and “meta-procedures” should be developed that can perform automated resampling and hyperparameter tuning on a stack of algorithms. The method presented in this study contributes to preventive university management in different countries and university systems.