Problem
Research questions and friction points this paper is trying to address.
social bots
activist cohesion
protest peak
human networks
Black Lives Matter
Social bots weaken activist cohesion
🤖 AI Summary
研究探讨了社交机器人在2020年黑人命也是命抗议活动期间对人类网络凝聚力的影响，通过分析转推网络的变化发现机器人暴露导致了后续支持者间凝聚力下降。
📝 Abstract
Social bots now make up a substantial share of online political communication, where they are studied mainly as producers of misinformation and amplified content. Far less is known about whether their presence reshapes the human relationships that hold movements together. We ask whether exposure to bots during a protest peak is followed by the erosion of cohesion in human networks. Tracking retweet networks of core participants in the 2020 Black Lives Matter (BLM) protests before, during, and after the peak, we measure change in cohesion at two scales: triadic closure in individual ego networks and edge density within detected communities. Greater bot exposure during the peak predicts steeper subsequent declines in human cohesion at both scales, and the loss concentrates among supporters of the movement. Bots may weaken activism less by changing what people believe than by dissolving the ties through which collective action is sustained.
Innovation
Methods, ideas, or system contributions that make the work stand out.
social bots
cohesion erosion
activism
network analysis
Black Lives Matter
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