1 code implementation • 18 May 2023 • Marwa El Halabi, George Orfanides, Tim Hoheisel
We introduce variants of DCA and its complete form (CDCA) that we apply to the DC program corresponding to DS minimization.
no code implementations • 24 Feb 2020 • Gabriel Rioux, Rustum Choksi, Tim Hoheisel, Pierre Marechal, Christopher Scarvelis
Image deblurring is a notoriously challenging ill-posed inverse problem.
2 code implementations • 5 Aug 2019 • Aram-Alexandre Pooladian, Chris Finlay, Tim Hoheisel, Adam Oberman
This includes, but is not limited to, $\ell_1, \ell_2$, and $\ell_\infty$ perturbations; the $\ell_0$ counting "norm" (i. e. true sparseness); and the total variation seminorm, which is a (non-$\ell_p$) convolutional dissimilarity measuring local pixel changes.
no code implementations • 4 Mar 2017 • James V. Burke, Yuan Gao, Tim Hoheisel
Generalized matrix-fractional (GMF) functions are a class of matrix support functions introduced by Burke and Hoheisel as a tool for unifying a range of seemingly divergent matrix optimization problems associated with inverse problems, regularization and learning.