An agent-based model for emotion contagion and competition in online social media
An agent-based model for emotion contagion and competition in online social media
复制标题
在线社交媒体中基于代理的情绪传染和竞争模型
DOI：
10.1016/j.physa.2017.12.086
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发表时间：
2018-04-01
影响因子：
3.3
通讯作者：
Zhao, Jichang
中科院分区：
文献类型：
--
作者：
Fan, Rui;Xu, Ke;Zhao, Jichang
最近的研究表明，人类的情绪不仅在现实世界的社区中传播，而且在在线社交媒体中传播。然而，考虑到最新调查结果和多种在线社交媒体机制的综合模型仍然缺失。为了弥补这一重要的差距，基于Agent的模型，同时考虑情绪的影响和领带强度的偏好，提出了模拟情绪传染和竞争。我们的模型很好地再现了经验数据中观察到的模式，如愤怒对弱关系的偏好，愤怒主导的用户的高生命力和愤怒的推文的短转发间隔，以及愤怒在负面事件中的竞争力。与先前提出的基线模型的比较进一步证明了其在建模在线情绪传染的有效性。我们的模型还令人惊讶地发现，当愤怒与喜悦的比例差距小于12%时，愤怒最终将主导在线社交媒体，并在网络空间中达到集体愤怒。这里披露的关键差距确实可以在愤怒控制的早期阶段发出警告信号。我们的模型将有助于在计算机模拟方面研究情绪传染和竞争等多个问题。(C)2017爱思唯尔B.V.保留所有权利。
Recent studies suggest that human emotions diffuse in not only real-world communities but also online social media. However, a comprehensive model that considers up-todate findings and multiple online social media mechanisms is still missing. To bridge this vital gap, an agent-based model, which concurrently considers emotion influence and tie strength preferences, is presented to simulate the emotion contagion and competition. Our model well reproduces patterns observed in the empirical data, like anger's preference on weak ties, anger-dominated users' high vitalities and angry tweets' short retweet intervals, and anger's competitiveness in negative events. The comparison with a previously presented baseline model further demonstrates its effectiveness in modeling online emotion contagion. It is also surprisingly revealed by our model that as the ratio of anger approaches joy with a gap less than 12%, anger will eventually dominate the online social media and arrives the collective outrage in the cyber space. The critical gap disclosed here can be indeed warning signals at early stages for outrage control. Our model would shed lights on the study of multiple issues regarding emotion contagion and competition in terms of computer simulations. (C) 2017 Elsevier B.V. All rights reserved.