A cross-hazard analysis of terse message retransmission on Twitter
A cross-hazard analysis of terse message retransmission on Twitter
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DOI：
10.1073/pnas.1508916112
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发表时间：
2015-12-01
影响因子：
11.1
通讯作者：
Butts, Carter T.
中科院分区：
文献类型：
--
作者：
Sutton, Jeannette;Ben Gibson, C.;Butts, Carter T.
几十年来，公共预警信息一直通过广播信息渠道，包括广播和电视传播;最近，风险沟通渠道已扩大到包括社交媒体网站，在那里，信息可以很容易地通过用户转发放大。本研究探讨的因素，预测通过Twitter传播的官方危险通信的转发程度。使用涉及五种不同危害的事件的数据，我们确定了三种类型的属性-本地网络属性，消息内容和消息样式-共同放大和/或衰减转发的官方通信迫在眉睫的威胁。我们发现，使用一个商定的标签和用户的数量以下的官方帐户积极影响消息的转发，作为消息内容描述的危害影响或强调用户之间的凝聚力。相比之下，针对个人的消息，表达感激之情，或包括一个URL的传播不如没有这些功能的类似消息广泛。我们的研究结果表明，通常采取的一些措施，向公众传达额外的信息（例如，包含URL）可能会在消息放大方面付出代价;另一方面，在危险通信指南中传统上不强调的某些类型的内容可能会提高重传率。
For decades, public warning messages have been relayed via broadcast information channels, including radio and television; more recently, risk communication channels have expanded to include social media sites, where messages can be easily amplified by user retransmission. This research examines the factors that predict the extent of retransmission for official hazard communications disseminated via Twitter. Using data from events involving five different hazards, we identity three types of attributes-local network properties, message content, and message style-that jointly amplify and/or attenuate the retransmission of official communications under imminent threat. We find that the use of an agreed-upon hashtag and the number of users following an official account positively influence message retransmission, as does message content describing hazard impacts or emphasizing cohesion among users. By contrast, messages directed at individuals, expressing gratitude, or including a URL were less widely disseminated than similar messages without these features. Our findings suggest that some measures commonly taken to convey additional information to the public (e.g., URL inclusion) may come at a cost in terms of message amplification; on the other hand, some types of content not traditionally emphasized in guidance on hazard communication may enhance retransmission rates.