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arXiv 1709.01249cs.LGstat.ML
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非齐次超图聚类及其应用

Inhomogeneous Hypergraph Clustering with Applications

UIUC(伊利诺伊大学厄巴纳-香槟分校)

Pan Li, Olgica Milenkovic

摘要:

超图划分是机器学习、计算机视觉和网络分析中的一个重要问题。一种广泛使用的超图划分方法依赖于最小化跨簇划分超边的成本的归一化和。基于这种方法的数学解决方案假设超边的不同分区产生相同的成本。然而,这种假设未能利用同一超边内的不同顶点子集可能具有不同结构重要性的事实。因此,我们提出了一个新的超图聚类技术,称为非均匀超图分区,它分配不同的成本不同的超边削减。我们证明了非齐次划分产生的最优解的二次近似,如果非齐次成本满足子模块化约束。此外,我们证明了非均匀划分提供了显着的性能改进的应用程序,如结构学习的排名,子空间分割和主题聚类。

英文摘要:

Hypergraph partitioning is an important problem in machine learning, computer vision and network analytics. A widely used method for hypergraph partitioning relies on minimizing a normalized sum of the costs of partitioning hyperedges across clusters. Algorithmic solutions based on this approach assume that different partitions of a hyperedge incur the same cost. However, this assumption fails to leverage the fact that different subsets of vertices within the same hyperedge may have different structural importance. We hence propose a new hypergraph clustering technique, termed inhomogeneous hypergraph partitioning, which assigns different costs to different hyperedge cuts. We prove that inhomogeneous partitioning produces a quadratic approximation to the optimal solution if the inhomogeneous costs satisfy submodularity constraints. Moreover, we demonstrate that inhomogenous partitioning offers significant performance improvements in applications such as structure learning of rankings, subspace segmentation and motif clustering.

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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