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arXiv 1408.3570physics.soc-phcond-mat.stat-mechcs.SI
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演化复杂网络的局部重连规则

Local rewiring rules for evolving complex networks

Ewan R. Colman, Geoff J. Rodgers

摘要:

对于每个节点具有相同的固定出度的有向网络,考虑了链路重布线的影响。我们模拟了一个由三种机制产生的网络,这些机制存在于各种网络系统中:增长,全球重新布线和本地重新布线。在重新布线阶段,随机选择一个节点,将其一条向外的边从其目的地分离,然后以两种可能的方式之一重新连接到网络;全局连接到随机选择的节点,或局部连接到原始选择节点的后代的后代。虽然连接到节点的概率随着其连通性的增加而增加,但分离的概率也会增加,结果是指数度分布,其中少数外围节点具有极大的度。我们通过识别一组节点可以增长到非常高的程度的情况来解释这些离群值。

英文摘要:

The effects of link rewiring are considered for the class of directed networks where each node has the same fixed out-degree. We model a network generated by three mechanisms that are present in various networked systems; growth, global rewiring and local rewiring. During a rewiring phase a node is randomly selected, one of its out-going edges is detached from its destination then re-attached to the network in one of two possible ways; either globally to a randomly selected node, or locally to a descendant of a descendant of the originally selected node. Although the probability of attachment to a node increases with its connectivity, the probability of detachment also increases, the result is an exponential degree distribution with a small number of outlying nodes that have extremely large degree. We explain these outliers by identifying the circumstances for which a set of nodes can grow to very high degree.

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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