论文标题

确定关键的LMS功能以预测高危学生

Identifying Critical LMS Features for Predicting At-risk Students

论文作者

Guo, Ying, Gunay, Cengiz, Tangirala, Sairam, Kerven, David, Jin, Wei, Savage, Jamye Curry, Lee, Seungjin

论文摘要

学习管理系统(LMS)在高等教育方面已经变得至关重要,并在帮助教育机构促进学生成功方面发挥了重要作用。传统上,高等教育机构在管理,报告和提供教育内容方面已使用了LMS。在本文中,我们通过使用其数据日志来执行数据分析并确定学术危险的学生,介绍了LMS的额外使用。数据驱动的见解将使教育机构和教育工作者能够开发和实施针对学术上处于危险学生的教学干预措施。我们使用了Brightspace LMS在2019年秋季,2020年春季和2020年秋季学期的匿名数据日志。有监督的机器学习算法用于预测学生的最终课程表现,并且发现几种算法表现良好,精度高于90%。 Shap值方法用于评估预测模型中使用的特征的相对重要性。根据与LMS的互动/参与的相似性,无监督的学习也用于将学生分为不同的集群。在受监督和无监督的学习中,我们确定了两个最重要的功能(number_of_assignment_submissions和content_completed)。更重要的是,我们的研究奠定了基础,并为开发可能纳入LMS的实时数据分析指标提供了框架。

Learning management systems (LMSs) have become essential in higher education and play an important role in helping educational institutions to promote student success. Traditionally, LMSs have been used by postsecondary institutions in administration, reporting, and delivery of educational content. In this paper, we present an additional use of LMS by using its data logs to perform data-analytics and identify academically at-risk students. The data-driven insights would allow educational institutions and educators to develop and implement pedagogical interventions targeting academically at-risk students. We used anonymized data logs created by Brightspace LMS during fall 2019, spring 2020, and fall 2020 semesters at our college. Supervised machine learning algorithms were used to predict the final course performance of students, and several algorithms were found to perform well with accuracy above 90%. SHAP value method was used to assess the relative importance of features used in the predictive models. Unsupervised learning was also used to group students into different clusters based on the similarities in their interaction/involvement with LMS. In both of supervised and unsupervised learning, we identified two most-important features (Number_Of_Assignment_Submissions and Content_Completed). More importantly, our study lays a foundation and provides a framework for developing a real-time data analytics metric that may be incorporated into a LMS.

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