A Provable Generalized Tensor Spectral Method for Uniform Hypergraph Partitioning

author: Debarghya Ghoshdastidar, Department of Computer Science and Automation (CSA), Indian Institute of Science Bangalore
published: Sept. 27, 2015,   recorded: July 2015,   views: 1712

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Matrix spectral methods play an important role in statistics and machine learning, and most often the word `matrix’ is dropped as, by default, one assumes that similarities or affinities are measured between two points, thereby resulting in similarity matrices. However, recent challenges in computer vision and text mining have necessitated the use of multi-way affinities in the learning methods, and this has led to a considerable interest in hypergraph partitioning methods in machine learning community. A plethora of “higher-order” algorithms have been proposed in the past decade, but their theoretical guarantees are not well-studied. In this paper, we develop a unified approach for partitioning uniform hypergraphs by means of a tensor trace optimization problem involving the affinity tensor, and a number of existing higher-order methods turn out to be special cases of the proposed formulation. We further propose an algorithm to solve the proposed trace optimization problem, and prove that it is consistent under a planted hypergraph model. We also provide experimental results to validate our theoretical findings.

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