一种面向Chrome浏览器的视频云笔记插件

Cloud-based Notes Plugin for Video on Google Chrome

随着互联网的发展以及edx,Coursea和Udacity等开放式网络教学平台的推广,互联网教学逐渐兴起并广泛普及。互联网教学中学生获取知识的一个主要媒介是互联网课程中的教学视频资源。然而,当前的互联网教学辅助平台中存在一个明显的不足:学生无法及时针对教学视频细节在云端记录并分享笔记或寻求帮助。这将会影响学生对视频形式的教学内容的理解,也不利于形成优质的学习生态系统。由此,设计了一种面向Chrome浏览器的视频云笔记工具,并采用了HTML5,Node.js,MongoDB等关键技术对其进行了实现。该工具能够针对互联网教学视频资源的细节内容记录、发布笔记并在云端共享,有利于学生对视频教学资源中细节的整理、理解、讨论和最终掌握;同时该工具可以根据学生人群在使用工具的过程中产生的数据对视频内容进行一定程度的解析,挖掘视频教学资源中的关键点,从而降低学生获取关键知识的难度,辅助学生的学习过程。最后,进行了相关的实例研究,结果证明了所提出的分析设计方案的可行性和有效性。

With the development of Internet and the promotion of massive open online courses,online teaching has been widely used.In the environment of online teaching,most students acquire knowledge from the videos in online classes.However,there is an obvious shortcoming existing in most current online learning platforms that students can＇t take and share notes or ask for help conveniently while learning from videos.As a result,it may be difficult for students to have a deep understanding of the video lectures.So this paper designed and implemented a cloud-based note plugin for video on Google Chrome and implemented it with HTML5,Node.js,MongoDB and other key technologies.Students can take notes on videos lectures and share them with others.At the same time,the plugin can analyze the lecture content and find the key points in some degree according to students＇ using data so that it can support much help in both interactive discussion and knowledge understanding.Finally,this paper gave case studies to verify the feasibility and effectiveness of the solution.