论文标题
通过学习分析系统与预测模型结合学习者的期望和表现
Aligning Learners' Expectations and Performance by Learning Analytics Systemwith a Predictive Model
论文作者
论文摘要
学习分析(LA)是数据收集,分析和有关学习者的数据的代表,以改善其学习和表现。此外,LA为在高等教育中进行自我调节的学习机会打开了大门,这是一个循环过程,在该过程中,学习者激活和维持针对其个人学习目标的行为。洛杉矶和自我调节的学习潜力很大。但是,它们尚未广泛应用于高等教育机构。斯洛文尼亚高等教育机构落后于洛杉矶采用的其他欧洲国家。我们的研究旨在通过定性和定量领导的工作流程来构建以需求为导向的LA解决方案,旨在填补这一空白,包括通过经验来收集学生对LA的期望并提出仪表板解决方案。翻译学生对学习分析问卷和焦点小组的期望被用来收集学习者的期望。基于它们,为选定的课程实施了利用LA和AI型模型等级预测的用户界面。该界面包括早期预测,同行比较和历史数据概述。等级预测基于在虚拟学习环境,人口统计数据和实验室成绩中建立在用户交互的机器学习模型上。首先,分类用于确定有失败的学生 - 课程的第一个月后,其精度达到了98%。其次,通过决策树回归器预测确切的等级,在第一个月后达到平均绝对误差为11.2级(以100点比例)。拟议的系统的主要好处是在学期中支持自我调节学习过程,可能会激励学生调整学习策略以防止课程失败。最初的学生评估显示了积极的结果。
Learning analytics (LA) is data collection, analysis, and representation of data about learners in order to improve their learning and performance. Furthermore, LA opens the door to opportunities for self-regulated learning in higher education, a circular process in which learners activate and sustain behaviours that are oriented toward their personal learning goals. The potentials of LA and self-regulated learning are huge; however, they are not yet widely applied in higher education institutions. Slovenian higher education institutions have lagged behind other European countries in LA adoption. Our research aims to fill this gap by using a qualitatively and quantitatively led workflow for building a requirement-oriented LA solution, consisting of empirically gathering the students' expectations of LA and presenting a dashboard solution. Translated Student Expectations of Learning Analytics Questionnaire and focus groups were used to gather expectations from learners. Based on them, a user interface utilizing LA and grade prediction with an AI model was implemented for a selected course. The interface includes early grade prediction, peer comparison, and historical data overview. Grade prediction is based on a machine learning model built on users' interaction in the virtual learning environment, demographic data and lab grades. First, classification is used to determine students at risk of failing - its precision reaches 98% after the first month of the course. Second, the exact grade is predicted with the Decision Tree Regressor, reaching a mean absolute error of 11.2grade points (on a 100 points scale) after the first month. The proposed system's main benefit is the support for self-regulation of the learning process during the semester, possibly motivating students to adjust their learning strategies to prevent failing the course. Initial student evaluation showed positive results.