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arXiv 1401.6733physics.soc-phcs.SIphysics.data-an
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网络中的行走模块性和社团结构

Walk modularity and community structure in networks

David Mehrle, Amy Strosser, Anthony Harkin

摘要:

在过去的十年中,模块化最大化一直是发现生物学、计算、社会科学、统计力学等领域中具有实际意义的网络社区结构的最广泛使用的方法之一。模块性是一个质量函数,它测量聚类中发现的边缘数量减去基于随机机会统计期望找到的边缘数量之间的差异。我们提出了一个自然的泛化模块化的基础上的差异,实际和预期的数量之间的步行集群,我们称之为步行模块化。步行模块化可以用矩阵形式表示,社区检测可以通过寻找步行模块化矩阵的前导特征向量来执行。我们在合成网络和真实网络上演示了社区检测,发现与传统的模块化最大化相比,步行模块化最大化返回了显着改善的结果。

英文摘要:

Modularity maximization has been one of the most widely used approaches in the last decade for discovering community structure in networks of practical interest in biology, computing, social science, statistical mechanics, and more. Modularity is a quality function that measures the difference between the number of edges found within clusters minus the number of edges one would statistically expect to find based on random chance. We present a natural generalization of modularity based on the difference between the actual and expected number of walks within clusters, which we call walk-modularity. Walk-modularity can be expressed in matrix form, and community detection can be performed by finding leading eigenvectors of the walk-modularity matrix. We demonstrate community detection on both synthetic and real-world networks and find that walk-modularity maximization returns significantly improved results compared to traditional modularity maximization.

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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