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arXiv 0910.0103cond-mat.stat-mechphysics.soc-ph
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从局部互动中产生的全局偏好依恋

Emergence of Global Preferential Attachment From Local Interaction

Menghui Li, Liang Gao, Ying Fan, Jinshan Wu, Zengru Di

摘要:

基于全局度/强度的偏好连接被广泛用作网络的一种演化机制。本文发现,网络的全局偏好连接是由局部交互模型产生的,包括距离依赖偏好连接(DDPA)的加权网络演化模型(M. Li等人,New Journal of Physics 8(2006)72)、熟人网络模型(J. Davidsen等人,Phys. Rev. Lett. 88(2002)128701)和连接最近邻(CNN)模型(A. Vazquez,Phys.Rev.E67(2003)056104)。对于DDPA模型和CNN模型,依恋率与度或强度呈线性关系,而对于熟人网络模型,依恋率与度或强度的关系服从次线性幂律。这意味着,对于社交网络的进化,本地联系可能比假定的全球偏好依恋更根本。这与经验电子邮件网络演化中观察到的结果一致。

英文摘要:

Global degree/strength based preferential attachment is widely used as an evolution mechanism of networks. But it is hard to believe that any individual can get global information and shape the network architecture based on it. In this paper, it is found that the global preferential attachment emerges from the local interaction models, including distance-dependent preferential attachment (DDPA) evolving model of weighted networks(M. Li et al, New Journal of Physics 8 (2006) 72), acquaintance network model(J. Davidsen et al, Phys. Rev. Lett. 88 (2002) 128701) and connecting nearest-neighbor(CNN) model(A. Vazquez, Phys. Rev. E 67 (2003) 056104). For DDPA model and CNN model, the attachment rate depends linearly on the degree or strength, while for acquaintance network model, the dependence follows a sublinear power law. It implies that for the evolution of social networks, local contact could be more fundamental than the presumed global preferential attachment. This is onsistent with the result observed in the evolution of empirical email networks.

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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