Is this Twitter Event a Disaster
Is this Twitter Event a Disaster
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这是 Twitter 事件一场灾难吗？
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
C. Lucas
中科院分区：
文献类型：
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作者：
André Dittrich;C. Lucas
Twitter等社交媒体服务已成为报道真实世界事件的重要渠道。例如，它们可以描述灾难期间的当前情况。危机管理中的决策是基于详细的现场信息，例如正在发生的事情，事件发生的地点和时间以及参与者。因此，在真实的应用中，通过社交媒体监测事件将能够分析当前的总体情况。在本文中，作者介绍了一个基于Twitter的实时自然灾害检测和监测的原型。该检测方法是多语言的，并计算潜在灾害事件的基于统计的概率。对于灾害的自动地理参考，该方法应用空间网格化。在此基础上，网格单元进行空间主题聚类，使用类似于区域生长的方法。应用程序的输出是自动生成的电子邮件警报，其中包含有关灾难的特定信息。
Social media services such as Twitter have become an important channel for reporting real-world events. For example, they can describe the current situation during a disaster. The decisions in crises management are based on detailed on-site information such as what is happening, where and when an event is happening, and who is involved. Thus, in real applications, monitoring the events over social media will enable to analyse the current overall situation. In this paper, the authors introduce a prototype for real-time Twitter-based natural disaster detection and monitoring. The detection approach is multilingual and calculates a statistical based probability for a potential disaster event. For an automatic geo-referencing of the disaster, the approach applies spatial gridding. On this basis the grid cells are subject to a spatial-thematic clustering which uses a method similar to region growing. The application’s output is an automatically generated email alert, containing specific information on the disaster.