arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.01577cs.SI
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在社交媒体上发现暴力极端分子

Detection of Violent Extremists in Social Media

Hamidreza Alvari, Soumajyoti Sarkar, Paulo Shakarian

摘要:

互联网的易用性使伊拉克和叙利亚伊斯兰国(ISIS)等暴力极端分子能够轻松接触到大量受众,建立个人关系并增加招募。社交媒体主要是根据他们从自己的用户那里收到的报告来缓解这个问题。尽管社交媒体努力暂停许多账户,但这一解决方案并不能保证有效,因为并非所有极端分子都是这样被抓住的,或者他们可以简单地使用另一个账户返回或迁移到其他社交网络。在本文中,我们设计了一个自动检测方案,使用少到三组相关的用户名,配置文件和用户的文本内容的信息,确定是否一个给定的用户名属于一个极端主义用户。我们首先证明,极端分子倾向于采用与他们志同道合的人过去采用的用户名相似的用户名。然后,我们提出了一个检测框架,该框架部署了高度指示潜在网络极端主义的特征。来自Twitter的真实世界ISIS相关数据集的结果证明了该方法在识别极端主义用户方面的有效性。

英文摘要:

The ease of use of the Internet has enabled violent extremists such as the Islamic State of Iraq and Syria (ISIS) to easily reach large audience, build personal relationships and increase recruitment. Social media are primarily based on the reports they receive from their own users to mitigate the problem. Despite efforts of social media in suspending many accounts, this solution is not guaranteed to be effective, because not all extremists are caught this way, or they can simply return with another account or migrate to other social networks. In this paper, we design an automatic detection scheme that using as little as three groups of information related to usernames, profile, and textual content of users, determines whether or not a given username belongs to an extremist user. We first demonstrate that extremists are inclined to adopt usernames that are similar to the ones that their like-minded have adopted in the past. We then propose a detection framework that deploys features which are highly indicative of potential online extremism. Results on a real-world ISIS-related dataset from Twitter demonstrate the effectiveness of the methodology in identifying extremist users.

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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