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#ArsonEmergency and Australia's 'Black Summer': Polarisation and Misinformation on Social Media

机译：#arsonemergency和澳大利亚的“黑夏”：社交媒体的极化和误导

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During the summer of 2019-2020, while Australia suffered unprecedented bushfires across the country, false narratives regarding arson and limited backburning spread quickly on Twitter, particularly using the hashtag #ArsonEmergency. Misinformation and bot-and troll-like behaviour were detected and reported by social media researchers and the news soon reached mainstream media. This paper examines the communication and behaviour of two polarised online communities before and after news of the misinformation became public knowledge. Specifically, the Supporter community actively engaged with others to spread the hashtag, using a variety of news sources pushing the arson narrative, while the Opposer community engaged less, retweeted more, and focused its use of URLs to link to mainstream sources, debunking the narratives and exposing the anomalous behaviour. This influenced the content of the broader discussion. Bot analysis revealed the active accounts were predominantly human, but behavioural and content analysis suggests Supporters engaged in trolling, though both communities used aggressive language.
机译：在2019 - 2012年夏天，澳大利亚遭遇了前所未有的丛林大火，关于纵梁的假叙事，在推特上迅速迅速传播，特别是使用Hashtag #arsonemergency。通过社交媒体研究人员检测到并报告了错误信息和巨大的行为，并且该消息很快达到了主流媒体。本文介绍了两次极化在线社区的沟通和行为在错误信息的消息之前和之后成为公众知识。具体而言，支持者社区积极与他人一起参与散列，使用各种新闻来源推动纵火叙事，而反对者社区从事较少，再发出更多，并将其使用URL与主流来源的联系，揭示叙述并暴露异常行为。这影响了更广泛的讨论的内容。机器人分析显示，活动账户主要是人类，但行为和内容分析表明，虽然两个社区使用攻击性语言，但行为和内容分析表明支持者从事拖钓。

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