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Comparing student and expert-based tagging of recorded lectures

机译:比较学生和专家对录制的讲座的标记

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摘要

In this paper we analyse the way students tag recorded lectures. We compare their tagging strategy and the tags that they create with tagging done by an expert. We look at the quality of the tags students add, and we introduce a method of measuring how similar the tags are, using vector space modelling and cosine similarity. We show that the quality of tagging by students is high enough to be useful. We also show that there is no generic vocabulary gap between the expert and the students. Our study shows no statistically significant correlation between the tag similarity and the indicated interest in the course, the perceived importance of the course, the number of lectures attended, the indicated difficulty of the course, the number of recorded lectures viewed, the indicated ease of finding the needed parts of a recorded lecture, or the number of tags used by the student.
机译:在本文中,我们分析了学生标记录制的讲座的方式。我们将他们的标记策略和他们创建的标记与专家进行的标记进行比较。我们研究了学生添加的标签的质量,并介绍了一种使用矢量空间建模和余弦相似度来测量标签相似度的方法。我们表明,学生标记的质量足够高,可以使用。我们还表明,专家和学生之间没有通用的词汇差距。我们的研究表明,标签相似性与所表明的课程兴趣,所感知的课程重要性,所参加的讲座数量,所指示的课程难度,所记录的讲座数量,所显示的易于学习程度之间,标签相似度与统计学上无显着相关性。查找录制的讲座所需的部分,或学生使用的标签数量。

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