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首页> 外文期刊>International journal of web information systems >Augmented reality-based approach for interactivity in MOOCs
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Augmented reality-based approach for interactivity in MOOCs

机译：基于增强现实的MOOC交互方法

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Purpose - MOOCs represent a new concept that offers learning content to participants freely, anywhere and anytime. However, they suffer from several unsolved problems such as high dropout percentage, low completion rate or uncontrollable understanding level of the participants that can be caused by the lack of the practical activities and simulations. This article aims to propose a solution to ensure the integration of virtual manipulations in MOOCs. Design/methodology/approach - This paper proposes the integration of virtual manipulations (simulations and practical activities) relying on augmented reality. To ensure the manipulation of the used 3D objects, two methods have been proposed based on markers or hand gestures. Customized markers are used, facilitating their recognition by the users, to visualize the objects and to ensure their interactions. Hand gestures have been proposed to perform the manipulation easily. Consequently, hand detection and gestures classification using hand contour detection and HSV filter have been applied. Findings - Two MOOCs pedagogically similar were proposed to evaluate the effectiveness of the proposed solution. The only difference is that the second MOOC contains virtual manipulations that the participants can perform to understand better and to interact during the courses. The finding results show that the participants' understanding and satisfaction levels in the second MOOC were higher, and the dropout rate was lower than the first one. Originality/value - The integration of practical activities/simulations in MOOCs using augmented reality is the key novelty of our work. To do so, two manipulation methods have been proposed, so the instructor can feel free to choose the adequate method to ensure a better progress of the manipulations.
机译：目的-MOOC代表了一个新概念，可以随时随地为参与者免费提供学习内容。但是，他们面临着一些未解决的问题，例如缺少实践活动和模拟，可能导致参与者辍学率高，完成率低或参与者的理解水平无法控制。本文旨在提出一种解决方案，以确保在MOOC中集成虚拟操作。设计/方法/方法-本文提出了依赖于增强现实的虚拟操作（模拟和实际活动）的集成。为了确保对使用的3D对象进行操作，已提出了两种基于标记或手势的方法。使用定制的标记，以方便用户识别它们，以可视化对象并确保其交互。已经提出手势以容易地执行操纵。因此，已经应用了使用手轮廓检测和HSV过滤器进行手检测和手势分类。研究结果-提出了两个在教学方法上相似的MOOC，以评估所提出解决方案的有效性。唯一的不同是第二个MOOC包含虚拟操作，参与者可以通过虚拟操作更好地理解课程并在课程中进行互动。结果表明，第二次MOOC的参与者的理解和满意度较高，辍学率低于第一次。原创性/价值-使用增强现实技术将MOOC中的实践活动/模拟集成在一起是我们工作的关键新颖性。为此，已经提出了两种操作方法，因此教师可以随意选择适当的方法以确保更好的操作进度。

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