Social network analysis: Characteristics of online social networks after a disaster
Social network analysis: Characteristics of online social networks after a disaster
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DOI：
10.1016/j.ijinfomgt.2017.08.003
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发表时间：
2018-02-01
影响因子：
21
通讯作者：
Hastak, Makarand
中科院分区：
文献类型：
--
作者：
Kim, Jooho;Hastak, Makarand
Twitter和Facebook等社交媒体通过向受灾社区传播紧急情况信息，在灾害管理中发挥着至关重要的作用。它是获取紧急信息的第四大最受欢迎的来源。许多研究探索了社交媒体数据，以了解网络，并提取关键信息，以制定灾前和灾后减灾计划。2016年路易斯安那州的洪水破坏了6万多所房屋，是2012年飓风桑迪之后美国最严重的灾难。路易斯安那州的教区积极利用社交媒体与受灾社区分享信息，例如，洪水淹没地图、紧急避难所的位置、医疗服务和废墟清除工作。本研究应用社会网络分析，将紧急社会网络数据转换为知识。我们探索的模式创建的在线用户在Facebook上的灾难响应过程中的聚合互动。它提供了见解，了解社会媒体使用的紧急信息传播的关键作用。研究结果表明，社交网络由三个实体组成：个人、应急机构和组织。社交网络的核心是由无数个人组成的。他们积极参与分享信息，与巴吞鲁日市沟通，并更新信息。应急机构和组织处于社会网络的外围，将一个社区与其他社区联系起来。这项研究的结果将有助于应急机构制定减灾计划的社交媒体运营策略。
Social media, such as Twitter and Facebook, plays a critical role in disaster management by propagating emergency information to a disaster-affected community. It ranks as the fourth most popular source for accessing emergency information. Many studies have explored social media data to understand the networks and extract critical information to develop a pre- and post-disaster mitigation plan.The 2016 flood in Louisiana damaged more than 60,000 homes and was the worst U.S. disaster after Hurricane Sandy in 2012. Parishes in Louisiana actively used their social media to share information with the disaster-affected community - e.g., flood inundation map, locations of emergency shelters, medical services, and debris removal operation. This study applies social network analysis to convert emergency social network data into knowledge. We explore patterns created by the aggregated interactions of online users on Facebook during disaster responses. It provides insights to understand the critical role of social media use for emergency information propagation. The study results show social networks consist of three entities: individuals, emergency agencies, and organizations. The core of a social network consists of numerous individuals. They are actively engaged to share information, communicate with the city of Baton Rouge, and update information. Emergency agencies and organizations are on the periphery of the social network, connecting a community with other communities. The results of this study will help emergency agencies develop their social media operation strategies for a disaster mitigation plan.