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arXiv 2005.07632physics.soc-phq-bio.PE
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缺失数据网络中的免疫策略

Immunization Strategies in Networks with Missing Data

Samuel F. Rosenblatt, Jeffrey A. Smith, G. Robin Gauthier, Laurent Hébert-Dufresne

摘要:

以网络为基础的干预战略可以是在各种环境中减少有害传染的有效和具有成本效益的方法。正如所研究的那样,这些策略通常是不切实际的,因为它们通常假设网络结构的完整知识,这在实践中是不寻常的。在本文中,我们研究了不同的免疫策略在现实条件下的执行情况,其中的策略是由部分观察到的网络数据。我们的研究结果表明,全球免疫策略,如程度免疫,在大多数情况下是最佳的,例外的是在非常高的水平的缺失数据,随机策略,如熟人免疫,开始超过他们在最大限度地减少疫情。随机策略在某些情况下更稳健,因为它们可能受到缺失数据的不同影响。事实上,我们提出的熟人免疫变体之一利用了一个逻辑上现实的持续调查干预过程,作为一种有针对性的数据恢复形式,以改善缺失数据的水平。这些结果支持有针对性的免疫接种作为一种普遍做法的有效性。他们还强调了将网络视为理想化数学对象的风险:高估网络数据的准确性,放弃额外调查的回报。

英文摘要:

Network-based intervention strategies can be effective and cost-efficient approaches to curtailing harmful contagions in myriad settings. As studied, these strategies are often impractical to implement, as they typically assume complete knowledge of the network structure, which is unusual in practice. In this paper, we investigate how different immunization strategies perform under realistic conditions where the strategies are informed by partially-observed network data. Our results suggest that global immunization strategies, like degree immunization, are optimal in most cases; the exception is at very high levels of missing data, where stochastic strategies, like acquaintance immunization, begin to outstrip them in minimizing outbreaks. Stochastic strategies are more robust in some cases due to the different ways in which they can be affected by missing data. In fact, one of our proposed variants of acquaintance immunization leverages a logistically-realistic ongoing survey-intervention process as a form of targeted data-recovery to improve with increasing levels of missing data. These results support the effectiveness of targeted immunization as a general practice. They also highlight the risks of considering networks as idealized mathematical objects: overestimating the accuracy of network data and foregoing the rewards of additional inquiry.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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