397 citations · 968 across the 32 of their papers we have counts for
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math.OC2023
LSEMINK: A Modified Newton-Krylov Method for Log-Sum-Exp Minimization
Kelvin Kan, James G. Nagy, Lars Ruthotto
This paper introduces LSEMINK, an effective modified Newton-Krylov algorithm geared toward minimizing the log-sum-exp function for a linear model. Problems of this kind arise commo…
math.OC2023★ 2 cited
Alternating Minimization for Regression with Tropical Rational Functions
Alex Dunbar, Lars Ruthotto
We propose an alternating minimization heuristic for regression over the space of tropical rational functions with fixed exponents. The method alternates between fitting the numera…
cs.LG2023★ 3 cited
Multilevel Diffusion: Infinite Dimensional Score-Based Diffusion Models for Image Generation
Paul Hagemann, Sophie Mildenberger, Lars Ruthotto +2
Score-based diffusion models (SBDM) have recently emerged as state-of-the-art approaches for image generation. Existing SBDMs are typically formulated in a finite-dimensional setti…