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arXiv 1804.06005physics.soc-ph
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网络中节点与真实社区的相关性分析

Correlation Analysis of Nodes Identifies Real Communities in Networks

Jingming Zhang, Jianjun Cheng, Xing Su, Xinhong Yin, Shiyan Zhao, Xiaoyun Chen

摘要:

复杂网络分析中的一个重要问题是揭示社区结构,即网络节点在同一社区中紧密连接,社区之间存在稀疏连接。以往的社区检测算法存在复杂度高、需要社区数量或规模等先验信息、多次运行不能得到相同的划分结果等缺点。在本文中,我们提出了一个简单而有效的算法,它只使用节点的相关性,这既不需要优化预定义的目标函数,也不需要社区的数量或大小的信息。我们测试我们的算法在真实世界和合成图的社区结构是已知的,并观察到该算法检测这种已知的结构具有很高的适用性和可靠性。我们还将该算法应用到一些网络的社区结构是未知的,并发现它在这些情况下检测确定性和信息社区分区。

英文摘要:

A significant problem in analysis of complex network is to reveal community structure, in which network nodes are tightly connected in the same communities, between which there are sparse connections. Previous algorithms for community detection in real-world networks have the shortcomings of high complexity or requiring for prior information such as the number or sizes of communities or are unable to obtain the same resulting partition in multiple runs. In this paper, we proposed a simple and effective algorithm that uses the correlation of nodes alone, which requires neither optimization of predefined objective function nor information about the number or sizes of communities. We test our algorithm on real-world and synthetic graphs whose community structure is already known and observe that the proposed algorithm detects this known structure with high applicability and reliability. We also apply the algorithm to some networks whose community structure is unknown and find that it detects deterministic and informative community partitions in these cases.

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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