Understanding topological mesoscale features in community mining

S. Moon, Jinyoung You, Haewoon Kwak, Daniel Kim, Hawoong Jeong
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引用次数: 9

Abstract

Community detection has been one of the major topics in complex network research. Recently, several greedy algorithms for networks of millions of nodes have been proposed, but one of their limitations is inconsistency of outcomes [1]. Kwak et al. propose an iterative reinforcing approach to eliminate inconsistency in detected communities. In this paper we delve into structural characteristics of communities identified by Kwak's method with 12 real networks. We find that about 40% of nodes are grouped into communities in an inconsistent way in Orkut and Cyworld. Interestingly, they are only two out of 12 networks whose community size distribution follow power-law. As a first step towards interpretation of communities, we use Guimera and Amaral's method [2] to classify nodes into seven classes based on the z-score and the participation coefficient. Using the z-P analysis, we identify the roles of nodes in Karate and Autonomous System (AS) networks and match them against known roles for evaluation. We apply topological mesoscale information to compare two AS produced by Oliveira et al. [3], and Dhamdhere and Dovrolis [4] We report that even though their AS graphs differ in size, their topological characteristics are very similar.
了解社区采矿的拓扑中尺度特征
社区检测一直是复杂网络研究的重要课题之一。近年来,针对百万节点网络提出了几种贪心算法,但其局限性之一是结果不一致[1]。Kwak等人提出了一种迭代强化方法来消除被检测社区中的不一致性。本文以12个真实网络为样本,研究了用Kwak方法识别的社区的结构特征。我们发现,在Orkut和Cyworld中,大约40%的节点以不一致的方式分组到社区中。有趣的是,在12个网络中,它们只是两个社区规模分布遵循幂律的网络。作为解释社区的第一步,我们使用了Guimera和Amaral的方法[2],根据z-score和参与系数将节点分为7类。使用z-P分析,我们确定空手道和自治系统(AS)网络中节点的角色,并将它们与已知角色进行匹配以进行评估。我们应用拓扑中尺度信息来比较Oliveira等人[3]和Dhamdhere和Dovrolis[4]制作的两个AS图。我们报告说,尽管它们的AS图大小不同,但它们的拓扑特征非常相似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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