San Juan-Sebastian, Pablo; Virtanen, T.; García Mollá, Víctor Manuel; Vidal Maciá, Antonio Manuel(Springer-Verlag, 2018)
[EN] This paper presents an analysis of an efficient parallel implementation of the active-set Newton algorithm (ASNA), which is used to estimate the nonnegative weights of linear combinations of the atoms in a large-scale ...
García Mollá, Víctor Manuel; San Juan-Sebastian, Pablo; Virtanen, T.; Vidal Maciá, Antonio Manuel; Alonso-Jordá, Pedro(Elsevier, 2019)
[EN] In this paper, we propose, describe, and test a modification of the K-SVD algorithm. Given a set of training data, the proposed algorithm computes an overcomplete dictionary by minimizing the ß-divergence () between ...