Grade Prediction with Course and Student Specificc Models
|Agoritsa Polyzou and George Karypis|
|International Journal of Data Science and Analytics, 2016|
The accurate estimation of students' grades in future courses is important as it can inform the selection of next term's courses and create personalized degree pathways to facilitate successful and timely graduation. This paper presents future-course grade predictions methods based on sparse linear and low-rank matrix factorization models that are specific to each course or student-course tuple. These methods identify the predictive subsets of prior courses on a course-by-course basis and better address problems associated with the not-missing-at-random nature of the student-course historical grade data. The methods were evaluated on a dataset obtained from the University of Minnesota, for two different departments with different characteristics. This evaluation showed that focusing on course specific data improves the accuracy of grade prediction.
|Research topics: Collaborative filtering | Data mining | Learning analytics|