arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2206.03213cs.CYcs.AI
收藏

利用AI和语义技术提高学生的学习成绩

Improving Students' Academic Performance with AI and Semantic Technologies

The Australian National University(澳大利亚国立大学)

Yixin Cheng

摘要:

人工智能和语义技术正在发展,并已应用于包括教育领域在内的各个研究领域。高等教育机构努力提高学生的学习成绩。对高危学生的早期干预和合理的课程设置对学生的成功至关重要。之前的研究选择部署传统的机器学习模型来预测学生的表现。在课程语义分析方面,在对语义技术在计算机科学课程中的应用进行了全面系统的回顾之后,研究的一个主要发现是,用于测量相似性的技术在概念、课程等的表示方面存在准确性和模糊性方面的局限性。利用上学期的成绩预测学生的学习成绩,以语义的方式对课程表示进行建模并计算相似度,以及识别两门相似课程之间的先决条件。关于性能预测,我们在巴西一所大学的数据集上使用了遗传算法和长短期记忆(LSTM)的组合,该数据集包含248730条记录。在相似性度量方面,我们采用BERT对句子进行编码,并使用余弦相似度来获得课程之间的距离。在先决条件识别方面,采用TextRazor从课程描述中提取概念,然后采用SemRefD度量两个概念之间的先决程度。这项研究的成果可以概括为:(i)突破性的结果提高了Manrique的工作2.5%的辍学预测的准确性方面;(ii)发现课程之间的相似性基于课程描述;(iii)确定在ANU计算学院的三门必修课程的先决条件。

英文摘要:

Artificial intelligence and semantic technologies are evolving and have been applied in various research areas, including the education domain. Higher Education institutions strive to improve students' academic performance. Early intervention to at-risk students and a reasonable curriculum is vital for students' success. Prior research opted for deploying traditional machine learning models to predict students' performance. In terms of curriculum semantic analysis, after conducting a comprehensive systematic review regarding the use of semantic technologies in the Computer Science curriculum, a major finding of the study is that technologies used to measure similarity have limitations in terms of accuracy and ambiguity in the representation of concepts, courses, etc. To fill these gaps, in this study, three implementations were developed, that is, to predict students' performance using marks from the previous semester, to model a course representation in a semantic way and compute the similarity, and to identify the prerequisite between two similar courses. Regarding performance prediction, we used the combination of Genetic Algorithm and Long-Short Term Memory (LSTM) on a dataset from a Brazilian university containing 248730 records. As for similarity measurement, we deployed BERT to encode the sentences and used cosine similarity to obtain the distance between courses. With respect to prerequisite identification, TextRazor was applied to extract concepts from course description, followed by employing SemRefD to measure the degree of prerequisite between two concepts. The outcomes of this study can be summarized as: (i) a breakthrough result improves Manrique's work by 2.5% in terms of accuracy in dropout prediction; (ii) uncover the similarity between courses based on course description; (iii) identify the prerequisite over three compulsory courses of School of Computing at ANU.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑