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arXiv 1207.3603cs.SIcs.CVphysics.soc-ph
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社区发现算法的定性比较

Qualitative Comparison of Community Detection Algorithms

Galatasaray University(加拉塔萨雷大学);University of Burgundy(勃艮第大学)

Günce Orman, Vincent Labatut, Hocine Cherifi

摘要:

社区发现是复杂网络分析中一个非常活跃的领域,它包括识别相对于网络的其余部分更紧密互连的节点组。现有的算法通常在真实世界和人工网络上进行测试和比较,通过一些分区相似性度量来评估它们的性能。然而,人造网络的现实性可能会受到质疑,这些措施的适当性并不明显。在这项研究中,我们利用最新的进展有关的社区结构的表征来解决这些问题。我们首先生成网络,这要归功于迄今为止最真实的模型。他们的分析表明,它们只显示了在现实世界社区结构中观察到的一些属性。然后,我们在这些网络上应用五个社区发现算法,并发现定量评估的性能不一定与定性分析所确定的社区一致。因此,似乎这两种方法都应该应用于执行算法的相关比较。

英文摘要:

Community detection is a very active field in complex networks analysis, consisting in identifying groups of nodes more densely interconnected relatively to the rest of the network. The existing algorithms are usually tested and compared on real-world and artificial networks, their performance being assessed through some partition similarity measure. However, artificial networks realism can be questioned, and the appropriateness of those measures is not obvious. In this study, we take advantage of recent advances concerning the characterization of community structures to tackle these questions. We first generate networks thanks to the most realistic model available to date. Their analysis reveals they display only some of the properties observed in real-world community structures. We then apply five community detection algorithms on these networks and find out the performance assessed quantitatively does not necessarily agree with a qualitative analysis of the identified communities. It therefore seems both approaches should be applied to perform a relevant comparison of the algorithms.

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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