ABSTRACT A crowdsourcing environment, where there is a very large volume of diverse content resulting from the participation of a mass of unspecified individuals, has resulted in significant changes in education. This paper presents an e-learning content system to manage the inclusion of crowdsourced material on the Web within lecture materials. The e-learning content system comprises a scrape system, learning content editor, and tracing system. As Web content may change with the progress of time, teachers (and students) must check whether the Web-based materials previously used in their classes have been updated. Accordingly, we designed scrape metadata specifications for tracing the original source. These metadata include information on copyrights and tracing, rather than basic data regarding the original source, to allow users to determine whether the original source has been updated. An editor was also configured so that the scraped Web content could be immediately incorporated into the teaching materials for enhanced convenience. The change point tracing accuracy test and utility evaluation performed using this system show that the accuracy of the change point tracing was 97.1% and that this system effectively saves time as compared with checking for changes by entering each URL directly.

中文翻译：

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基于众包的电子学习内容系统实现的原始溯源

摘要 在众包环境中，由于大量未指定个人的参与而产生大量不同的内容，这导致了教育的重大变化。本文介绍了一种电子学习内容系统，用于管理网络上的众包材料在讲座材料中的包含。电子学习内容系统包括抓取系统、学习内容编辑器和跟踪系统。由于网络内容可能会随着时间的推移而发生变化，因此教师（和学生）必须检查以前在课堂上使用的基于网络的材料是否已更新。因此，我们设计了用于追踪原始来源的刮取元数据规范。这些元数据包括关于版权和追踪的信息，而不是关于原始来源的基本数据，允许用户确定原始源是否已更新。还配置了一个编辑器，以便可以将抓取的 Web 内容立即合并到教学材料中，以提高便利性。使用该系统进行的变化点追踪准确度测试和效用评估表明，变化点追踪的准确率为97.1%，与直接输入每个URL来检查变化相比，该系统有效地节省了时间。