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arXiv 1301.2698cs.SIphysics.soc-ph
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用随机游动评估大型网络的社团结构

Evaluating community structure in large network with random walks

Jiankou Li

摘要:

社团结构是网络的重要性质之一。大多数社区算法由于其耗时而不适合大型网络。事实上,有很多网络都有数百万甚至数十亿个节点。在这种情况下,大多数算法运行时间为O(n2logn)甚至更大是不实际的。我们需要的是线性或近似线性的时间算法。针对这一需求,本文提出了一种快速评估网络社团结构的方法,并在此基础上提出了一种基于随机游动的近似线性时间的局部社团算法。使用我们的社区评价方法,我们可以发现一些与以前使用的方法不同的结果,即,纽曼模块化我们的算法在小规模的基准网络中是有效的,精度比更复杂的算法低,但对于大型网络,特别是超大型网络,在时间上有很大的优势。

英文摘要:

Community structure is one of the most important properties of networks. Most community algorithms are not suitable for large networks because of their time consuming. In fact there are lots of networks with millons even billons of nodes. In such case, most algorithms running in time O(n2logn) or even larger are not practical. What we need are linear or approximately linear time algorithm. Rising in response to such needs, we propose a quick methods to evaluate community structure in networks and then put forward a local community algorithm with nearly linear time based on random walks. Using our community evaluating measure, we could find some difference results from measures used before, i.e., the Newman Modularity. Our algorithm are effective in small benchmark networks with small less accuracy than more complex algorithms but a great of advantage in time consuming for large networks, especially super 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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