Search Results for author: Tim Hoheisel

Found 4 papers, 2 papers with code

Difference of Submodular Minimization via DC Programming

1 code implementation18 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.

feature selection

A principled approach for generating adversarial images under non-smooth dissimilarity metrics

2 code implementations5 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.

Adversarial Attack

Convex Geometry of the Generalized Matrix-Fractional Function

no code implementations4 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.

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