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arXiv 2501.02187math.OCcs.SI
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一种用于图聚类问题类别的高效二次惩罚方法

An Efficient Quadratic Penalty Method for a Class of Graph Clustering Problems

Beijing Institute of Technology(北京理工大学);School of Mathematics and Statistics(数学与统计学院);Beijing Key Laboratory on MCAACI(北京MCAACI重点实验室)

Wenshun Teng, Qingna Li

AI总结:

本文提出了一种高效二次惩罚方法,用于解决具有块特性的图聚类问题,通过稀疏约束优化和连续优化模型,提升了小规模和大规模数据集的聚类性能。

摘要:

基于社区的图聚类是分析复杂社交网络中最受欢迎的主题之一。此类聚类涉及将被认为共享更多连接的顶点分组,而不同组中的顶点共享较少连接。成功的聚类结果形成密集连接的诱导子图。本文研究了一种特定形式的图聚类问题,可以表述为半分配问题,其中目标函数具有块特性。我们将这些问题重新表述为稀疏约束优化问题,并将其放松为连续优化模型。然后,我们分别将二次惩罚法和二次惩罚正则化法应用于放松问题。广泛的数值实验表明,这两种方法有效地解决了合成和现实世界网络数据集中的图聚类任务。对于小规模问题,二次惩罚正则化法表现出更高的效率,而二次惩罚法在大规模情况下证明更为合适。

英文摘要:

Community-based graph clustering is one of the most popular topics in the analysis of complex social networks. This type of clustering involves grouping vertices that are considered to share more connections, whereas vertices in different groups share fewer connections. A successful clustering result forms densely connected induced subgraphs. This paper studies a specific form of graph clustering problems that can be formulated as semi-assignment problems, where the objective function exhibits block properties. We reformulate these problems as sparse-constrained optimization problems and relax them to continuous optimization models. We then apply the quadratic penalty method and the quadratic penalty regularized method to the relaxation problem, respectively. Extensive numerical experiments demonstrate that both methods effectively solve graph clustering tasks for both synthetic and real-world network datasets. For small-scale problems, the quadratic penalty regularized method demonstrates greater efficiency, whereas the quadratic penalty method proves more suitable for large-scale cases.

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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