Finding Influential Spreaders from Human Activity beyond Network Location.
Finding Influential Spreaders from Human Activity beyond Network Location.
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DOI：
10.1371/journal.pone.0136831
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Makse HA
中科院分区：
文献类型：
--
作者：
Min B;Liljeros F;Makse HA
大多数用于识别社交网络上有影响力的传播者以传播消息或阻止流行病的中心点都需要传播发生的网络的完整拓扑信息。然而，在实践中，收集社交网络中的代理之间的所有连接很难实现。结果，这样的度量可能难以应用于真实的社交网络。因此，需要一种新的方法来识别有影响力的人没有明确的网络信息，以提供一个有效的免疫或传播策略，在实际意义上。在这项研究中，我们寻求一种可能的方式来寻找有影响力的传播者，通过使用社会机制的社会关系是如何形成的真实的网络。我们发现，通过询问人们如何相互互动，可以实现可靠的免疫计划。从这些调查中，我们发现，在测试的社会机制中，连接到枢纽的概率趋势对有影响力的传播者具有最强的预测能力。我们的观察还表明，当网络具有强大的模块化结构时，连接不同社区的人更有可能成为有影响力的传播者。我们的发现意味着，不仅网络位置的影响，而且个人的行为是很重要的，以设计最佳的免疫或传播方案。
Most centralities proposed for identifying influential spreaders on social networks to either spread a message or to stop an epidemic require the full topological information of the network on which spreading occurs. In practice, however, collecting all connections between agents in social networks can be hardly achieved. As a result, such metrics could be difficult to apply to real social networks. Consequently, a new approach for identifying influential people without the explicit network information is demanded in order to provide an efficient immunization or spreading strategy, in a practical sense. In this study, we seek a possible way for finding influential spreaders by using the social mechanisms of how social connections are formed in real networks. We find that a reliable immunization scheme can be achieved by asking people how they interact with each other. From these surveys we find that the probabilistic tendency to connect to a hub has the strongest predictive power for influential spreaders among tested social mechanisms. Our observation also suggests that people who connect different communities is more likely to be an influential spreader when a network has a strong modular structure. Our finding implies that not only the effect of network location but also the behavior of individuals is important to design optimal immunization or spreading schemes.