Event-Driven Analysis of Crowd Dynamics in the Black Lives Matter Online Social Movement

Event-Driven Analysis of Crowd Dynamics in the Black Lives Matter Online Social Movement
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“黑人生命也是命”在线社会运动中人群动态的事件驱动分析

DOI:
10.1145/3308558.3313673
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发表时间:
2019
期刊:
Event-Driven Analysis of Crowd Dynamics in the Black Lives Matter Online Social Movement
影响因子:
--
通讯作者:
Romero, Daniel M.
Romero, Daniel M.
中科院分区:
--
文献类型:
--
作者:
Peng, Hao;Budak, Ceren;Romero, Daniel M.

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网络社会运动(OSMs)在促进现代社会民主方面发挥着关键作用。大多数在线活动主要是由关键的线下事件推动的。在众多研究中,很少有研究探讨群体动态与其线下环境之间的相互作用。在这里,我们将重点放在“黑人的命也是命”运动上,并利用事件驱动的方法对3600万条推文和数千个线下事件的数据集进行研究,研究不同类型的线下事件——警察暴力和加剧的抗议——如何随着时间的推移影响人群行为。我们发现警察暴力事件和抗议活动在招募过程中发挥了重要作用。此外,通过分析社会互动的再参与动态和模式,我们发现,从长远来看,在警察暴力事件和抗议期间加入运动的用户比在其他时间加入运动的用户表现出更多的承诺。然而,在其他时间招募的用户在短期内比其他两组更致力于运动。此外,我们观察到,在警察暴力事件期间形成的社会关系比在其他时间形成的社会关系更有可能持续一段时间。相反,在抗议期间形成的关系是最不可能维持的。总之,我们的研究结果揭示了突发事件对“黑人的命也是命”运动中集体行为的招募、保留和沟通模式的影响。
Online social movements (OSMs) play a key role in promoting democracy in modern society. Most online activism is largely driven by critical offline events. Among many studies investigating collective behavior in OSMs, few has explored the interaction between crowd dynamics and their offline context. Here, focusing on the Black Lives Matter OSM and utilizing an event-driven approach on a dataset of 36 million tweets and thousands of offline events, we study how different types of offline events-police violence and heightened protests-influence crowd behavior over time. We find that police violence events and protests play important roles in the recruitment process. Moreover, by analyzing the re-participation dynamics and patterns of social interactions, we find that, in the long term, users who joined the movement during police violence events and protests show significantly more commitment than those who joined during other times. However, users recruited during other times are more committed to the movement than the other two groups in the short term. Furthermore, we observe that social ties formed during police violence events are more likely to be sustained over time than those formed during other times. Contrarily, ties formed during protests are the least likely to be maintained. Altogether, our results shed light on the impact of bursting events on the recruitment, retention, and communication patterns of collective behavior in the Black Lives Matter OSM.
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DOI: --
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期刊: Conference on Empirical Methods in Natural Language Processing
影响因子: --
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期刊: The Journal of Nervous and Mental Disease
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