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arXiv 2109.09152cs.SI
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Instagram上政治讨论的动态:网络视角

On the Dynamics of Political Discussions on Instagram: A Network Perspective

Carlos H. G. Ferreira, Fabricio Murai, Ana P. C. Silva, Jussara M. Almeida, Martino Trevisan, Luca Vassio, Marco Mellia, Idilio Drago

摘要:

Instagram越来越多地被用作信息来源,尤其是在年轻人中。因此,政治人物现在利用这个平台传播意见和政治议程。在这里,我们从网络的角度分析了Instagram上的在线讨论,特别是政治话题。具体来说,我们调查了共同评论者社区的出现,也就是说,经常通过评论相同帖子进行互动的用户群体,可能会推动正在进行的在线讨论。特别是,我们感兴趣的是显着的相互作用,即,共同评论者之间的互动比预期的更频繁,这是偶然的,也是独立的。与通常大量发生的偶然和偶然的共同互动不同,显着的共同互动是推动在线讨论并最终推动信息传播的关键因素。我们的研究基于对巴西和意大利主要选举的10周数据的分析,跟踪政治家和其他名人。我们提取和特征的共同评论者的社区的拓扑结构,社区成员进行的讨论的属性,以及一些社区属性,特别是社区成员和主题,如何随着时间的推移而演变。我们发现,讨论政治话题的社区往往比其他主题更投入辩论,他们写更长的评论,使用更多的表情符号,标签和负面词汇。此外,围绕政治讨论建立的社区往往更具活力,尽管顶级评论者仍然活跃,并随着时间的推移保持社区成员资格。此外,我们观察到,随着时间的推移,讨论的话题也有很大的多样性:有些话题只是暂时吸引注意力,而其他话题则围绕着更基本的政治讨论,随着时间的推移一直保持活跃。

英文摘要:

Instagram has been increasingly used as a source of information especially among the youth. As a result, political figures now leverage the platform to spread opinions and political agenda. We here analyze online discussions on Instagram, notably in political topics, from a network perspective. Specifically, we investigate the emergence of communities of co-commenters, that is, groups of users who often interact by commenting on the same posts and may be driving the ongoing online discussions. In particular, we are interested in salient co-interactions, i.e., interactions of co-commenters that occur more often than expected by chance and under independent behavior. Unlike casual and accidental co-interactions which normally happen in large volumes, salient co-interactions are key elements driving the online discussions and, ultimately, the information dissemination. We base our study on the analysis of 10 weeks of data centered around major elections in Brazil and Italy, following both politicians and other celebrities. We extract and characterize the communities of co-commenters in terms of topological structure, properties of the discussions carried out by community members, and how some community properties, notably community membership and topics, evolve over time. We show that communities discussing political topics tend to be more engaged in the debate by writing longer comments, using more emojis, hashtags and negative words than in other subjects. Also, communities built around political discussions tend to be more dynamic, although top commenters remain active and preserve community membership over time. Moreover, we observe a great diversity in discussed topics over time: whereas some topics attract attention only momentarily, others, centered around more fundamental political discussions, remain consistently active over time.

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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