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CP-TT: using TT-SVD to greedily construct a Canonical Polyadic tensor approximation
arXiv - CS - Numerical Analysis Pub Date : 2020-11-19 , DOI: arxiv-2011.09725
Virginie Ehrlacher, Maria Fuente Ruiz, Damiano Lombardi

In the present work, a method is proposed in order to compute a Canonical Polyadic (CP) approximation of a given tensor. It is based on a greedy method and an adaptation of the TT-SVD method. The proposed approach can be straightforwardly extended to compute rank-$k$ updates in a stable way. Some numerical experiments are proposed, in which the proposed method is compared to ALS and ASVD methods and performs particularly well for high-order tensors.

中文翻译:

CP-TT:使用TT-SVD贪婪地构建Canonical Polyadic张量近似

在目前的工作中,提出了一种方法来计算给定张量的规范多元 (CP) 近似。它基于贪婪方法和 TT-SVD 方法的改编。所提出的方法可以直接扩展为以稳定的方式计算 rank-$k$ 更新。提出了一些数值实验,其中将所提出的方法与 ALS 和 ASVD 方法进行了比较,并且对高阶张量表现得特别好。
更新日期:2020-11-20
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