2 papers
math.NA2026
A Practical Mode-parallel Implementation of the (H-)Tucker Decomposition via Randomization
Martina Iannacito, Sascha Portaro, Davide Palitta +2
In the last decades, tensors have emerged as the right tool to represent multidimensional data in a compact yet informative manner. Moreover, it is well-known that by performing lo…
math.NA2021
A spectral PALM algorithm for matrix and tensor-train based Dictionary Learning
Domitilla Brandoni, Margherita Porcelli, Valeria Simoncini
Dictionary Learning (DL) is one of the leading sparsity promoting techniques in the context of image classification, where the "dictionary" matrix D of images and the sparse matrix…