Event detection in educational records: an application of big data approaches
by Alan D. Smith
International Journal of Business and Systems Research (IJBSR), Vol. 15, No. 3, 2021

Abstract: As the exponential growth of predictive analytics applied to educational institutions continues, with various goals in mind, an event detection system could serve as the foundation for more sophisticated predictive systems. What is envisioned is a system that flags educational records that have a sudden change (i.e., event detection in education records). The basic algorithm prosed would retrieve the current week's data for each student, calculate Euclidian and Mahalanobis distances among current week's data, and historical student data, sort all student data based on these distances, and update historical data with current data. The educational event detection system uses a query-based, R-tree structure, big data analytical approach. A simulated experiment determined that the event detection algorithm was able to detect relatively small changes in simulated data. Although, the units of the two distance metrics do not coincide, so distance measurements are not directly comparable, the event detection algorithm with the two different distance metrics have comparable CPU run times. Research and suggestions for constructing predictive analytics on student learners' attrition/retention approaches were documented.

Online publication date: Wed, 12-May-2021

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