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arXiv 2106.06244cs.IR
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基于多媒体资源消耗的Web搜索知识获取预测

Predicting Knowledge Gain during Web Search based on Multimedia Resource Consumption

Christian Otto, Ran Yu, Georg Pardi, Johannes von Hoyer, Markus Rokicki, Anett Hoppe, Peter Holtz, Yvonne Kammerer, Stefan Dietze, Ralph Ewerth

摘要:

在非正式学习场景中,多媒体内容(如视频教程或讲座)的普及程度显著提高。然而,用户的交互,导航行为,从而学习的结果,还没有得到广泛的研究。这一领域的相关工作,也被称为搜索学习,集中在行为或文本资源的特征来预测学习结果和知识的获得。在本文中,我们研究我们是否可以利用代表多媒体资源消耗的功能来预测的知识增益(KG)在Web搜索过程中从会话数据,即没有先验知识的学习者。为此,我们提出了一套多媒体功能的图像和视频观看量。我们的特征提取在实验室研究中进行了评估,有113名参与者,我们收集了给定搜索的数据作为雷暴和闪电形成的学习任务。我们自动分析监控日志数据,并利用最先进的计算机视觉方法来提取所看到的多媒体资源的特征。实验结果表明,多媒体特征可以提高KG预测。最后,我们对KG预测的特征重要性(文本和多媒体)进行了分析。

英文摘要:

In informal learning scenarios the popularity of multimedia content, such as video tutorials or lectures, has significantly increased. Yet, the users' interactions, navigation behavior, and consequently learning outcome, have not been researched extensively. Related work in this field, also called search as learning, has focused on behavioral or text resource features to predict learning outcome and knowledge gain. In this paper, we investigate whether we can exploit features representing multimedia resource consumption to predict of knowledge gain (KG) during Web search from in-session data, that is without prior knowledge about the learner. For this purpose, we suggest a set of multimedia features related to image and video consumption. Our feature extraction is evaluated in a lab study with 113 participants where we collected data for a given search as learning task on the formation of thunderstorms and lightning. We automatically analyze the monitored log data and utilize state-of-the-art computer vision methods to extract features about the seen multimedia resources. Experimental results demonstrate that multimedia features can improve KG prediction. Finally, we provide an analysis on feature importance (text and multimedia) for KG prediction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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