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Measuring multiple evolution mechanisms of complex networks

机译:衡量复杂网络的多种进化机制

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摘要

Numerous concise models such as preferential attachment have been put forward to reveal the evolution mechanisms of real-world networks, which show that real-world networks are usually jointly driven by a hybrid mechanism of multiplex features instead of a single pure mechanism. To get an accurate simulation for real networks, some researchers proposed a few hybrid models by mixing multiple evolution mechanisms. Nevertheless, how a hybrid mechanism of multiplex features jointly influence the network evolution is not very clear. In this study, we introduce two methods (link prediction and likelihood analysis) to measure multiple evolution mechanisms of complex networks. Through tremendous experiments on artificial networks, which can be controlled to follow multiple mechanisms with different weights, we find the method based on likelihood analysis performs much better and gives very accurate estimations. At last, we apply this method to some real-world networks which are from different domains (including technology networks and social networks) and different countries (e.g., USA and China), to see how popularity and clustering co-evolve. We find most of them are affected by both popularity and clustering, but with quite different weights.
机译:提出了许多简洁的模型,例如优先附着,以揭示现实世界网络的演化机制,这表明现实世界网络通常是由多重特征的混合机制而非单个纯机制共同驱动的。为了获得对真实网络的准确仿真,一些研究人员通过混合多种进化机制提出了一些混合模型。但是,尚不清楚如何通过复用特征的混合机制共同影响网络发展。在这项研究中,我们介绍两种方法(链接预测和似然分析)来测量复杂网络的多种演化机制。通过在人工网络上进行的大量实验,可以控制其遵循具有不同权重的多种机制,我们发现基于似然分析的方法效果更好,并且给出了非常准确的估计。最后,我们将此方法应用于来自不同领域(包括技术网络和社交网络)和不同国家(例如美国和中国)的一些现实世界网络,以了解流行度和集群如何协同发展。我们发现其中大多数受流行度和聚类影响,但权重却大不相同。

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