在线讲座视频的课前关键环节分析

2016 IEEE 16th International Conference on Advanced Learning Technologies (ICALT) Pub Date : 2016-07-01 DOI:10.1109/ICALT.2016.102

Xiaoyin Che, T. Staubitz, Haojin Yang, C. Meinel

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引用次数: 2

摘要

在本文中，我们提出了一种评估在线课程中讲座视频片段重要性的方法。视频将首先根据幻灯片过渡进行分段。然后，我们根据对教师关注点的分析来评估每个部分的重要性。这个焦点主要是通过探索幻灯片和演讲中的特征来确定的。由于整个分析过程是基于多媒体材料，因此可以在课程正式开始之前完成。通过在MOOC《Web Technologies》课程中设置调查问题和收集论坛统计数据，对提出的方法进行了评价。总体趋势和所选关键段的高准确率(超过70%)都证明了所提方法的有效性。

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Pre-Course Key Segment Analysis of Online Lecture Videos

In this paper we propose a method to evaluate the importance of lecture video segments in online courses. The video will be first segmented based on the slide transition. Then we evaluate the importance of each segment based on our analysis of the teacher's focus. This focus is mainly identified by exploring features in the slide and the speech. Since the whole analysis process is based on multimedia materials, it could be done before the official start of the course. By setting survey questions and collecting forum statistics in the MOOC "Web Technologies", the proposed method is evaluated. Both the general trend and the high accuracy of selected key segments (over 70%) prove the effectiveness of the proposed method.

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2016 IEEE 16th International Conference on Advanced Learning Technologies (ICALT)

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