ABSTRACT Recently, owing to the development of information technology, there have been many changes in learning activities and equipment. For instance, compared with traditional textbook-based learning, e-learning has freed learners from spatial-temporal restrictions, and other educational media are replacing textbooks. Specifically, educational videos have become very popular, as they are effective at conveying their content or meaning. Furthermore, their accessibility has been improved because of the emergence of platforms that enable the sharing and delivery of such videos. However, when learners use such platforms, they tend to face difficulty in finding videos they want, as these platforms have a lot of videos. They also experience the inconvenience of performing additional searches because of the lack of information relevant to the video. To solve these problems, we propose a learning assistant system for educational video platforms. Our system helps learners find videos based on their readability level and contents. Moreover, it provides learners with useful information such as keywords and named entities for further learning activities. To demonstrate the effectiveness, we implemented a prototype system on a website dealing with speech videos and performed various experiments. By reporting some results, we show that our scheme can be used to implement sustainable education.

中文翻译：

---

可持续教育视像学习辅助计划

摘要 近年来，由于信息技术的发展，学习活动和设备发生了许多变化。例如，与传统的基于教科书的学习相比，电子学习使学习者摆脱了时空限制，其他教育媒体正在取代教科书。具体来说，教育视频变得非常流行，因为它们可以有效地传达其内容或意义。此外，由于能够共享和交付此类视频的平台的出现，它们的可访问性得到了改善。然而，当学习者使用这些平台时，他们往往难以找到他们想要的视频，因为这些平台有很多视频。由于缺乏与视频相关的信息，他们还会遇到执行额外搜索的不便。为了解决这些问题，我们提出了一种教育视频平台的学习辅助系统。我们的系统帮助学习者根据他们的可读性级别和内容查找视频。此外，它还为学习者提供了有用的信息，例如关键字和命名实体，以供进一步学习活动使用。为了证明有效性，我们在处理语音视频的网站上实现了一个原型系统并进行了各种实验。通过报告一些结果，我们表明我们的方案可用于实施可持续教育。为了证明有效性，我们在处理语音视频的网站上实现了一个原型系统并进行了各种实验。通过报告一些结果，我们表明我们的方案可用于实施可持续教育。为了证明有效性，我们在处理语音视频的网站上实现了一个原型系统并进行了各种实验。通过报告一些结果，我们表明我们的方案可用于实施可持续教育。