RePlay: Contextually Presenting Learning Videos Across Software Applications

RePlay: Contextually Presenting Learning Videos Across Software Applications
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RePlay:跨软件应用程序根据上下文呈现学习视频

DOI:
10.1145/3290605.3300527
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发表时间:
2019
期刊:
CHI2019
影响因子:
--
通讯作者:
Klemmer, Scott
Klemmer, Scott
中科院分区:
--
文献类型:
--
作者:
Fraser, C. Ailie;Ngoon, Tricia J.;Dontcheva, Mira;Klemmer, Scott

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复杂的活动通常需要人们跨多个软件应用程序工作。然而,人们经常缺乏关于至少一个应用程序的有价值的知识,特别是当软件更改和新软件出现时。现有的帮助系统要么缺乏上下文知识,要么紧密结合到单个应用程序中。我们介绍了一个独立于应用程序的方法,上下文呈现视频学习资源,并通过重播系统演示。RePlay使用可访问性API来收集有关用户活动的上下文。它利用现有的搜索引擎来呈现相关视频,并使用视频字幕突出显示其中的关键片段。我们报告了一个为期一周的实地研究(n=7)和实验室研究(n=24)表明,上下文辅助帮助人们花更少的时间远离他们的任务比网络视频搜索,并取代当前的视频导航策略。我们的研究结果突出了在应用程序中表示和使用上下文的挑战。
Complex activities often require people to work across multiple software applications. However, people frequently lack valuable knowledge about at least one application, especially as software changes and new software emerges. Existing help systems either lack contextual knowledge or are tightly-knit into a single application. We introduce an application-independent approach for contextually presenting video learning resources and demonstrate it through the RePlay system. RePlay uses accessibility APIs to gather context about the user's activity. It leverages an existing search engine to present relevant videos and highlights key segments within them using video captions. We report on a week-long field study (n=7) and a lab study (n=24) showing that contextual assistance helps people spend less time away from their task than web video search and replaces current video navigation strategies. Our findings highlight challenges with representing and using context across applications.
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