arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2005.00452physics.soc-phcs.SIphysics.data-an
收藏

由网络特征值求电阻距离和特征向量中心性

Finding the Resistance Distance and Eigenvector Centrality from the Network's Eigenvalues

Caracé Gutiérrez, Juan Gancio, Cecilia Cabeza, Nicolás Rubido

摘要:

有不同的方法来分类网络的数据集,根据问题的不同,有不同的成功。例如,电阻距离和特征向量中心性测量已经分别成功地揭示了生态途径和区分阿尔茨海默病患者的生物医学图像。电阻距离测量网络中任何两个节点之间的有效距离,考虑到它们之间所有可能的最短路径,特征向量中心性测量网络中每个节点的相对重要性。然而,这两种方法都需要知道网络的特征值和特征向量--特征向量是计算上要求更高的任务。在这里,我们表明,我们可以密切接近这两个措施,只使用本征值谱,我们说明了这一点,通过实验的基本电阻电路和范式网络模型-随机和小世界网络。我们的结果支持分析推导,表明在所有情况下,特征向量的中心可以完美匹配,而电阻距离可以接近。我们的基本方法是基于Denton,Parke,Tao和Zhang的工作[arXiv:1908.03795(2019)],它不受这些拓扑测度的限制,可以应用于大多数需要计算特征向量的问题。

英文摘要:

There are different measures to classify a network's data set that, depending on the problem, have different success. For example, the resistance distance and eigenvector centrality measures have been successful in revealing ecological pathways and differentiating between biomedical images of patients with Alzheimer's disease, respectively. The resistance distance measures the effective distance between any two nodes of a network taking into account all possible shortest paths between them and the eigenvector centrality measures the relative importance of each node in the network. However, both measures require knowing the network's eigenvalues and eigenvectors -- eigenvectors being the more computationally demanding task. Here, we show that we can closely approximate these two measures using only the eigenvalue spectra, where we illustrate this by experimenting on elemental resistor circuits and paradigmatic network models -- random and small-world networks. Our results are supported by analytical derivations, showing that the eigenvector centrality can be perfectly matched in all cases whilst the resistance distance can be closely approximated. Our underlying approach is based on the work by Denton, Parke, Tao, and Zhang [arXiv:1908.03795 (2019)], which is unrestricted to these topological measures and can be applied to most problems requiring the calculation of eigenvectors.

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。

↑