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arXiv 1406.6319stat.ML
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用于将交互数据聚类为图形集合的技术

Techniques for clustering interaction data as a collection of graphs

Nam H. Lee, Carey Priebe, Youngser Park, I-Jeng Wang, Michael Rosen

摘要:

分析“what-connects-to-what-when”形式的交互数据的自然方法是通过时间离散化(带宽选择)和空间离散化(顶点收缩)来创建图形的时间序列(或者更确切地说是序列)。这种离散化与非负因子分解技术一起可以用于获得图的聚类。执行图的聚类(与顶点聚类相对)的激励应用可以在神经科学和社交网络分析中找到,并且它还可以用于增强社区检测(即,顶点聚类)。在本文中,我们制定了一个问题的聚类图的模型选择问题。我们的方法涉及信息准则,非负矩阵分解和奇异值阈值,我们用真实和模拟数据说明我们的技术。

英文摘要:

A natural approach to analyze interaction data of form "what-connects-to-what-when" is to create a time-series (or rather a sequence) of graphs through temporal discretization (bandwidth selection) and spatial discretization (vertex contraction). Such discretization together with non-negative factorization techniques can be useful for obtaining clustering of graphs. Motivating application of performing clustering of graphs (as opposed to vertex clustering) can be found in neuroscience and in social network analysis, and it can also be used to enhance community detection (i.e., vertex clustering) by way of conditioning on the cluster labels. In this paper, we formulate a problem of clustering of graphs as a model selection problem. Our approach involves information criteria, non-negative matrix factorization and singular value thresholding, and we illustrate our techniques using real and simulated data.

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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