Surrogate models can reduce computational costs for multivariable functions with an unknown internal structure (black boxes). In a discrete formulation, surrogate modeling is …
Y Liu, X Zeng, W Wang - BIT Numerical Mathematics, 2023 - Springer
In this paper, we consider the three-order tensor recovery problem within the tensor tubal rank framework. Most of the recent studies under this framework can not handle the tubal …
S Krämer - arXiv preprint arXiv:2106.15201, 2021 - arxiv.org
Affine sum-of-ranks minimization (ASRM) generalizes the affine rank minimization (ARM) problem from matrices to tensors. Here, the interest lies in the ranks of a family $\mathcal {K} …
This thesis concerns the optimization and application of low-rank methods, with a special focus on tensor trains (TTs). In particular, we develop methods for computing TT …