arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.14059cs.SIcs.CY
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模拟Twitter上假新闻的传播

Modeling the spread of fake news on Twitter

Taichi Murayama, Shoko Wakamiya, Eiji Aramaki, Ryota Kobayashi

摘要:

假新闻可能对社会产生重大负面影响,因为移动设备的使用越来越多,全球互联网接入也在增加。因此,有必要建立一个简单的数学模型来理解假新闻的在线传播。在这项研究中,我们提出了一个假新闻在Twitter上传播的点过程模型。该模型将假新闻的传播描述为两个阶段的过程:最初,假新闻作为一条普通新闻传播;然后,当大多数用户开始认识到新闻的虚假性时,它本身作为另一个新闻故事传播。我们使用两个在Twitter上传播的假新闻项目数据集来验证这个模型。我们表明,该模型在准确预测假新闻传播的演变方面优于当前最先进的方法。此外,文本分析表明,我们的模型适当地推断了更正时间,即,当Twitter用户开始意识到新闻的虚假性时。该模型有助于了解假新闻在社交媒体上的传播动态。它提取传播模式的紧凑表示的能力可能有助于检测和缓解假新闻。

英文摘要:

Fake news can have a significant negative impact on society because of the growing use of mobile devices and the worldwide increase in Internet access. It is therefore essential to develop a simple mathematical model to understand the online dissemination of fake news. In this study, we propose a point process model of the spread of fake news on Twitter. The proposed model describes the spread of a fake news item as a two-stage process: initially, fake news spreads as a piece of ordinary news; then, when most users start recognizing the falsity of the news item, that itself spreads as another news story. We validate this model using two datasets of fake news items spread on Twitter. We show that the proposed model is superior to the current state-of-the-art methods in accurately predicting the evolution of the spread of a fake news item. Moreover, a text analysis suggests that our model appropriately infers the correction time, i.e., the moment when Twitter users start realizing the falsity of the news item. The proposed model contributes to understanding the dynamics of the spread of fake news on social media. Its ability to extract a compact representation of the spreading pattern could be useful in the detection and mitigation of fake news.

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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