Documents
Presentation Slides
A MULTI-RESOLUTION LOW-RANK TENSOR DECOMPOSITION
- Citation Author(s):
- Submitted by:
- Sergio Rozada Doval
- Last updated:
- 5 May 2022 - 4:53pm
- Document Type:
- Presentation Slides
- Document Year:
- 2022
- Event:
- Presenters:
- Sergio Rozada
- Paper Code:
- MLSP-19.6
- Categories:
- Keywords:
- Log in to post comments
The (efficient and parsimonious) decomposition of higher-order tensors is a fundamental problem with numerous applications in a variety of fields. Several methods have been proposed in the literature to that end, with the Tucker and PARAFAC decompositions being the most prominent ones. Inspired by the latter, in this work we propose a multi-resolution low-rank tensor decomposition to describe (approximate) a tensor in a hierarchical fashion. The central idea of the decomposition is to recast the tensor into multiple lower-dimensional tensors to exploit the structure at different levels of resolution. The method is first explained, an alternating least squares algorithm is discussed, and preliminary simulations illustrating the potential practical relevance are provided.