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arXiv 0904.3940physics.soc-phphysics.comp-ph
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具有重叠社区的有向和加权图上测试社区检测算法的基准

Benchmarks for testing community detection algorithms on directed and weighted graphs with overlapping communities

Andrea Lancichinetti, Santo Fortunato

摘要:

许多复杂的网络显示出一种介观结构,其中节点组与该组中的其他节点共享许多链接,而与不同组的节点共享的链接相对较少。这个特征被称为社区结构,它编码了关于节点的组织和功能的宝贵信息。已经提出了许多算法,但尚不清楚如何测试它们。最近,我们提出了一般类的无向和无权的基准图,与异质分布的节点度和社区大小。越来越多的注意力最近一直致力于开发算法,能够考虑的方向和重量的链接,这需要合适的基准测试图。在本文中,我们扩展了我们之前的基准测试背后的基本思想,以生成具有内置社区结构的有向和加权网络。我们还考虑了节点属于更多社区的可能性,这是真实系统中出现的一个特征,例如,e。例如,在一个实施例中,社交网络。作为一个实际应用,我们展示了模块化优化如何在我们的新基准上执行。

英文摘要:

Many complex networks display a mesoscopic structure with groups of nodes sharing many links with the other nodes in their group and comparatively few with nodes of different groups. This feature is known as community structure and encodes precious information about the organization and the function of the nodes. Many algorithms have been proposed but it is not yet clear how they should be tested. Recently we have proposed a general class of undirected and unweighted benchmark graphs, with heterogenous distributions of node degree and community size. An increasing attention has been recently devoted to develop algorithms able to consider the direction and the weight of the links, which require suitable benchmark graphs for testing. In this paper we extend the basic ideas behind our previous benchmark to generate directed and weighted networks with built-in community structure. We also consider the possibility that nodes belong to more communities, a feature occurring in real systems, like, e. g., social networks. As a practical application, we show how modularity optimization performs on our new benchmark.

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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