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arXiv 1609.07086math.NAcs.NA
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基于t积的随机张量奇异值分解

A Randomized Tensor Singular Value Decomposition based on the t-product

Jiani Zhang, Arvind K. Saibaba, Misha Kilmer, Shuchin Aeron

摘要:

由Kilmer和Martin~ \cite{2011kilmer}提出的三阶张量的张量奇异值分解(t-SVD)在计算机断层扫描、人脸识别、视频补全等领域得到了成功的应用。在本文中,我们提出了一种方法,扩展了著名的随机矩阵方法的t-SVD。这种方法可以产生具有与t-SVD相似性质的因子分解,但在非常大的数据集上计算效率更高。我们提出的算法,理论结果的细节,并提供数值结果,显示我们的方法压缩和分析数据集的承诺。我们还提出了一个改进的分析矩阵的随机子空间迭代,这可能是独立的兴趣,科学界。

英文摘要:

The tensor Singular Value Decomposition (t-SVD) for third order tensors that was proposed by Kilmer and Martin~\cite{2011kilmer} has been applied successfully in many fields, such as computed tomography, facial recognition, and video completion. In this paper, we propose a method that extends a well-known randomized matrix method to the t-SVD. This method can produce a factorization with similar properties to the t-SVD, but is more computationally efficient on very large datasets. We present details of the algorithm, theoretical results, and provide numerical results that show the promise of our approach for compressing and analyzing datasets. We also present an improved analysis of the randomized subspace iteration for matrices, which may be of independent interest to the scientific community.

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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