2 papers
math.NA2025
Weighted Group Lasso for a static EEG problem
Ole Løseth Elvetun, Bjørn Fredrik Nielsen, Niranjana Sudheer
We investigate the weighted Group Lasso formulation for the static inverse electroencephalography (EEG) problem, aiming at reconstructing the unknown underlying neuronal sources fr…
math.NA2025
Weighting operators for sparsity regularization
Ole Løseth Elvetun, Bjørn Fredrik Nielsen, Niranjana Sudheer
Standard regularization methods typically favor solutions which are in, or close to, the orthogonal complement of the null space of the forward operator/matrix . This p…