地震后的紧急通信显示,社交网络是重要关系的支柱
Jayson S Jia1, Yiwei Li2, Sheng Liu2
1Faculty of Business and Economics, The University of Hong Kong, Hong Kong SAR, China.
PNAS nexus
|November 29, 2023
概括
社交网络是抗灾能力的关键. 对雅安地震的一项研究显示,潜在的,脆弱的关系在灾后变得至关重要,形成了一个有弹性的社交网络骨干.
科学领域:
- 社会学 社会学 社会学
- 网络科学 网络科学
- 灾害研究 灾害研究
背景情况:
- 在灾难期间,社交网络对集体性至关重要.
- 了解灾后社会关系的动态对于有效的应对和恢复至关重要.
研究的目的:
- 在重大灾难发生后,确定形成社会网络的支柱的关键社会联系.
- 调查这些重要的灾后联系的特征及其预测因素.
- 确定重要联系的骨干是否足以实现网络连接.
主要方法:
- 利用准实验设计分析了中国雅安发生的一次大地震.
- 采用了91,839名居民的匿名移动电信数据.
- 分析了灾后最初的通信模式 (呼叫选择,顺序,延迟) 以确定"重要的联系".
主要成果:
- 只有26.8%的激活的重要联系在正常情况下是最强的联系.
- 许多关键的联系以前是潜伏或弱的,在地震后变得强大和持久.
- 灾难期间的纽带激活最好通过嵌入和纽带强度的相互作用来预测.
结论:
- 一个由重要纽带组成的社交网络骨干,而不仅仅是强或弱的纽带,对于抗灾能力至关重要.
- 这种骨干结构足以创建一个分层网络,在灾区内连接不同的社区.
- 这些发现凸显了社会联系的动态性质及其在灾难应对中的关键作用.
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