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arXiv 1802.01288cs.SIphysics.soc-ph
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基于连续谱松弛方法的网络社区发现

Network Community Detection with A Successive Spectral Relaxation Method

Wenye Li

摘要:

由于具有宝贵的理论和实践价值,划分网络的社区结构的问题已经吸引了科学和工程学科的重要研究关注。在文献中,纽曼的模块性度量通常用于量化给定分区的质量,从而最大化度量提供了检测网络中社区的原则性方法。不幸的是,该措施的精确优化计算是NP完全的,只适用于非常小的网络。必须寻求近似方法来扩展到大型网络。为了解决计算问题,我们提出了一种新的方法来确定分区决策。再加上一个迭代舍入策略和一个快速的约束功率方法,我们的工作实现了紧密和有效的谱松弛。所提出的方法进行了全面评估真实和合成网络。与最先进的方法相比,该方法获得了可比的,如果不是更好的,质量。同时,它非常适合并行执行,并报告了一个几乎线性的提高运行速度时,增加计算节点的数量,从而提供了一个实用的工具,用于划分非常大的网络。

英文摘要:

With invaluable theoretical and practical benefits, the problem of partitioning networks for community structures has attracted significant research attention in scientific and engineering disciplines. In literature, Newman's modularity measure is routinely applied to quantify the quality of a given partition, and thereby maximizing the measure provides a principled way of detecting communities in networks. Unfortunately, the exact optimization of the measure is computationally NP-complete and only applicable to very small networks. Approximation approaches have to be sought to scale to large networks. To address the computational issue, we proposed a new method to identify the partition decisions. Coupled with an iterative rounding strategy and a fast constrained power method, our work achieves tight and effective spectral relaxations. The proposed method was evaluated thoroughly on both real and synthetic networks. Compared with state-of-the-art approaches, the method obtained comparable, if not better, qualities. Meanwhile, it is highly suitable for parallel execution and reported a nearly linear improvement in running speed when increasing the number of computing nodes, which thereby provides a practical tool for partitioning very large networks.

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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