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arXiv 1607.08673cs.SIphysics.soc-ph
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具有社团结构的二部图的度量与建模

Measuring and Modeling Bipartite Graphs with Community Structure

Sinan Aksoy, Tamara G. Kolda, Ali Pinar

摘要:

网络科学是分析从社会学到工程学再到生物学等领域复杂系统的有力工具。本文主要研究大规模二部图(也称为双向图或双模网络)的生成模型。我们提出了两个生成模型,可以轻松调整以再现现实世界网络的特征,不仅是定性的,而且是定量的。我们考虑的特征是度分布和变态系数。变态系数是聚类系数的二分类似物,是参与长度为4的循环的长度为3的路径的比例。变态系数高是群落结构紧密的必要条件。我们定义了边,节点和度变态系数,使更详细的了解的二分连接,这是不能解释的程度分布单独。我们的第一个模型,二分Chung-Lu(CL),能够再现真实世界的度分布,我们的第二个模型,二分块两级Erdös-Rényi(BTER),再现度分布以及度变态系数。我们证明了这些模型的有效性在几个现实世界的数据集。

英文摘要:

Network science is a powerful tool for analyzing complex systems in fields ranging from sociology to engineering to biology. This paper is focused on generative models of large-scale bipartite graphs, also known as two-way graphs or two-mode networks. We propose two generative models that can be easily tuned to reproduce the characteristics of real-world networks, not just qualitatively, but quantitatively. The characteristics we consider are the degree distributions and the metamorphosis coefficient. The metamorphosis coefficient, a bipartite analogue of the clustering coefficient, is the proportion of length-three paths that participate in length-four cycles. Having a high metamorphosis coefficient is a necessary condition for close-knit community structure. We define edge, node, and degreewise metamorphosis coefficients, enabling a more detailed understanding of the bipartite connectivity that is not explained by degree distribution alone. Our first model, bipartite Chung-Lu (CL), is able to reproduce real-world degree distributions, and our second model, bipartite block two-level Erdös-Rényi (BTER), reproduces both the degree distributions as well as the degreewise metamorphosis coefficients. We demonstrate the effectiveness of these models on several real-world data sets.

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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