Yang Jie, Hu Shimin, Wang Qichao, Fong Simon
Department of Computer and Information Science, University of Macau, Taipa 999078, China.
College of Artificial Intelligence, Chongqing Industry & Trade Polytechnic, Chongqing 408000, China.
Entropy (Basel). 2021 Sep 26;23(10):1252. doi: 10.3390/e23101252.
The university curriculum is a systematic and organic study complex with some immediate associated steps; the initial learning of each semester's course is crucial, and significantly impacts the learning process of subsequent courses and further studies. However, the low teacher-student ratio makes it difficult for teachers to consistently follow up on the detail-oriented learning situation of individual students. The extant learning early warning system is committed to automatically detecting whether students have potential difficulties-or even the risk of failing, or non-pass reports-before starting the course. Previous related research has the following three problems: first of all, it mainly focused on e-learning platforms and relied on online activity data, which was not suitable for traditional teaching scenarios; secondly, most current methods can only proffer predictions when the course is in progress, or even approaching the end; thirdly, few studies have focused on the feature redundancy in these learning data. Aiming at the traditional classroom teaching scenario, this paper transforms the pre-class student performance prediction problem into a multi-label learning model, and uses the attribute reduction method to scientifically streamline the characteristic information of the courses taken and explore the important relationship between the characteristics of the previously learned courses and the attributes of the courses to be taken, in order to detect high-risk students in each course before the course begins. Extensive experiments were conducted on 10 real-world datasets, and the results proved that the proposed approach achieves better performance than most other advanced methods in multi-label classification evaluation metrics.
大学课程是一个具有一些直接相关步骤的系统且有机的学习综合体;每学期课程的初始学习至关重要,并对后续课程及进一步学习的过程产生重大影响。然而,师生比例较低使得教师难以持续跟踪每个学生注重细节的学习情况。现有的学习预警系统致力于在课程开始前自动检测学生是否存在潜在困难——甚至是不及格或未通过报告的风险。以往相关研究存在以下三个问题:首先,它主要聚焦于电子学习平台,依赖在线活动数据,不适用于传统教学场景;其次,当前大多数方法只能在课程进行中甚至接近尾声时提供预测;第三,很少有研究关注这些学习数据中的特征冗余。针对传统课堂教学场景,本文将课前学生成绩预测问题转化为多标签学习模型,并使用属性约简方法科学地精简所学课程的特征信息,探索先前所学课程特征与待学课程属性之间的重要关系,以便在课程开始前检测每门课程中的高风险学生。在10个真实世界数据集上进行了广泛实验,结果证明所提方法在多标签分类评估指标方面比大多数其他先进方法具有更好的性能。