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arXiv 0909.3817physics.soc-phphysics.comp-ph
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度相关网络中的减速传播

Decelerated spreading in degree-correlated networks

Markus Schläpfer, Lubos Buzna

摘要:

虽然度相关性对于网络中的传播现象起着至关重要的作用,但它们对传播速度的影响几乎没有被理解。在这里,我们研究了无标度网络上的可调传播模型,并表明,如果具有高连通性的节点局部加速(减速)传播,则在正(负)相关网络中传播变得缓慢。检查有效的路径提供了一个连贯的解释,这一结果,而$k$核心分解揭示了相关性的节点扩散效率的依赖。我们的研究结果应该开辟新的途径来微妙地控制现实世界的传播过程。

英文摘要:

While degree correlations are known to play a crucial role for spreading phenomena in networks, their impact on the propagation speed has hardly been understood. Here we investigate a tunable spreading model on scale-free networks and show that the propagation becomes slow in positively (negatively) correlated networks if nodes with a high connectivity locally accelerate (decelerate) the propagation. Examining the efficient paths offers a coherent explanation for this result, while the $k$-core decomposition reveals the dependence of the nodal spreading efficiency on the correlation. Our findings should open new pathways to delicately control real-world spreading processes.

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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