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Local preferential attachment model for hierarchical networks

机译:分层网络的本地优先附件模型

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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-a rea-network stands for a node and all its neighbors, and the new nodes perform nonlinear preferential attachment, pi (k(i)) alpha k(i)(alpha), in local areas. The stable degree distribution and clustering-degree correlations are analytically obtained. With the increasing of alpha, the clustering coefficient increases, while assortativity decreases from positive to negative. In addition, by adjusting the parameter or, the model can generate different kinds of degree distribution, from exponential to power-law. The hierarchical organization, independent of alpha, is the most significant character of this model.
机译:在现实生活中,收入者只能与本地的一些其他人联系,以获取有限的信息,而本地的人可能有密切的关系。因此,我们提出了一种本地优先依恋模型。在此,局域网称为节点及其所有邻居,新节点在本地执行非线性优先连接pi(k(i))alpha k(i)α。通过解析获得稳定度分布和聚类度相关性。随着α的增加,聚类系数增加,而分类性从正降低到负。此外,通过调整参数or,模型可以生成从指数到幂律的不同程度的分布。独立于alpha的分层组织是此模型的最重要特征。

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