Local preferential attachment model for hierarchical networks
Local preferential attachment model for hierarchical networks
复制标题
分层网络的局部优先连接模型
DOI:
10.1016/j.physa.2008.12.028
复制
发表时间:
2009-04
期刊:
影响因子:
--
通讯作者:
Guo, Jin-Li
中科院分区:
文献类型:
--
作者:
Yang, Han-Xin;Wang, Li-Na;Zhou, Tao;Guo, Jin-Li
In real-life networks, incomers may only connect to a few others in a local area for their limited information, and individuals in a local area are likely to have close relations. Accordingly, we propose a local preferential attachment model. Here, a local-area-network stands for a node and all its neighbors, and the new nodes perform nonlinear preferential attachment, π(ki)∝kiα, in local areas. The stable degree distribution and clustering-degree correlations are analytically obtained. With the increasing of α, the clustering coefficient increases, while assortativity decreases from positive to negative. In addition, by adjusting the parameter α, the model can generate different kinds of degree distribution, from exponential to power-law. The hierarchical organization, independent of α, is the most significant character of this model.
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影响因子:
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作者:
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通讯作者:
L. Kocarev;G. Vattay
DOI:
10.1016/s0378-4371(03)00567-3
发表时间:
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