arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.07752cs.SI
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强局部超图扩散聚类与半监督学习

Strongly Local Hypergraph Diffusions for Clustering and Semi-supervised Learning

Meng Liu, Nate Veldt, Haoyu Song, Pan Li, David F. Gleich

摘要:

基于超图的机器学习方法现在被广泛认为对于建模和使用数据对象之间的高阶和多向关系是重要的。局部超图聚类和半监督学习特别涉及在给定的一组标记顶点附近找到一组连接良好的节点。虽然图的局部聚类方法很多,但超图的局部聚类方法相对较少。此外,那些存在的往往缺乏灵活性,以模拟一般类的超图切割功能或不能扩展到大的问题。为了解决这些问题,本文提出了一种新的基于扩散的超图聚类算法,解决了一个二次超图切割为基础的目标类似于一个超图模拟的Andersen-Chung-Lang个性化PageRank聚类图。我们证明了,对于固定的最大超边大小的图,这种方法是强局部的,这意味着它的运行时间只取决于输出的大小,而不是超图的大小,是高度可扩展的。此外,我们的方法使我们能够计算各种各样的基数为基础的超图切割功能。我们还证明了通过求解新的目标函数发现的聚类满足Cheeger质量保证。我们证明,在大型现实世界的超图,我们的新方法发现更好的集群和运行速度比现有的方法。具体来说,它在几秒钟内运行的超图与几百万hyperedges相比,基于流的技术分钟。我们还表明,我们的框架是足够的一般性,也可以用来解决超图上的其他p-范数为基础的切割目标。我们的代码是可用的\url{github.com/MengLiuPurdue/LHQD}。

英文摘要:

Hypergraph-based machine learning methods are now widely recognized as important for modeling and using higher-order and multiway relationships between data objects. Local hypergraph clustering and semi-supervised learning specifically involve finding a well-connected set of nodes near a given set of labeled vertices. Although many methods for local clustering exist for graphs, there are relatively few for localized clustering in hypergraphs. Moreover, those that exist often lack flexibility to model a general class of hypergraph cut functions or cannot scale to large problems. To tackle these issues, this paper proposes a new diffusion-based hypergraph clustering algorithm that solves a quadratic hypergraph cut based objective akin to a hypergraph analog of Andersen-Chung-Lang personalized PageRank clustering for graphs. We prove that, for graphs with fixed maximum hyperedge size, this method is strongly local, meaning that its runtime only depends on the size of the output instead of the size of the hypergraph and is highly scalable. Moreover, our method enables us to compute with a wide variety of cardinality-based hypergraph cut functions. We also prove that the clusters found by solving the new objective function satisfy a Cheeger-like quality guarantee. We demonstrate that on large real-world hypergraphs our new method finds better clusters and runs much faster than existing approaches. Specifically, it runs in few seconds for hypergraphs with a few million hyperedges compared with minutes for flow-based technique. We furthermore show that our framework is general enough that can also be used to solve other p-norm based cut objectives on hypergraphs. Our code is available \url{github.com/MengLiuPurdue/LHQD}.

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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