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pro vyhledávání: '"Benjamin Grimmer"'
Autor:
Benjamin Grimmer
Publikováno v:
Mathematical Programming.
The first part of this work established the foundations of a radial duality between nonnegative optimization problems, inspired by the work of (Renegar, 2016). Here we utilize our radial duality theory to design and analyze projection-free optimizati
Publikováno v:
Mathematical Programming.
Autor:
Benjamin Grimmer, James Renegar
Publikováno v:
Foundations of Computational Mathematics. 22:211-256
We present a simple scheme for restarting first-order methods for convex optimization problems. Restarts are made based only on achieving specified decreases in objective values, the specified amounts being the same for all optimization problems. Unl
Autor:
Adrienn Krauszman, Golam Kabir, Mei Li, Xudong Hu, Kim A. Connelly, Benjamin Grimmer, Jana Grune, Christian Madry, Wolfgang M. Kuebler, Brant E. Isakson
Publikováno v:
Cardiovasc Res
Aims Hypoxic pulmonary vasoconstriction (HPV) is a physiological response to alveolar hypoxia that diverts blood flow from poorly ventilated to better aerated lung areas to optimize ventilation-perfusion matching. Yet, the exact sensory and signaling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bca128571ae3ccbe4bed7a609b2c6ab1
https://europepmc.org/articles/PMC9612799/
https://europepmc.org/articles/PMC9612799/
Autor:
Mateo Díaz, Benjamin Grimmer
We study convergence rates of the classic proximal bundle method for a variety of nonsmooth convex optimization problems. We show that, without any modification, this algorithm adapts to converge faster in the presence of smoothness or a H\"older gro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87d15cb76f52ec4b2b95b06895d922c3
http://arxiv.org/abs/2105.07874
http://arxiv.org/abs/2105.07874
Autor:
Holger Müller-Redetzky, Melanie Dohmen, Benjamin Grimmer, Stefan Hippenstiel, Wolfgang M. Kuebler, Diana Fatykhova, Felix Behrens, Martin Witzenrath, Markus C. Brack, Elisa Thomasch, Florian Kurth, Sabrina Schulz, Sarah Weidenfeld, Szandor Simmons, Laura Michalick, Andreas C. Hocke, Norbert Suttorp, Philip Daniel Solymosi, Victor M. Corman
Publikováno v:
The FASEB Journal
Study objective Endothelial dysfunction and increased microvascular permeability are hallmarks of severe COVID‐19. At present, the extent of endothelial barrier failure and its underlying mechanisms in COVID‑19 remain unclear. We hypothesized tha
Autor:
Wolfgang M. Kuebler, Adrienn Krauszman, Golam Kabir, Jana Grune, Xudong Hu, Benjamin Grimmer, Brant E. Isakson, Kim A. Connelly
Publikováno v:
The FASEB Journal. 35
Autor:
Benjamin Grimmer, Wolfgang M. Kuebler
Publikováno v:
Am J Respir Cell Mol Biol
Chronic hypoxia (CH) augments depolarization-induced pulmonary vasoconstriction through superoxide-dependent, Rho kinase–mediated Ca(2+) sensitization. Nicotinamide adenine dinucleotide phosphate oxidase and EGFR (epidermal growth factor receptor)
Autor:
Benjamin Grimmer
Often in the analysis of first-order methods for both smooth and nonsmooth optimization, assuming the existence of a growth/error bound or KL condition facilitates much stronger convergence analysis. Hence separate analysis is typically needed for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b33c917a670ceacedbd08f4243354ff
http://arxiv.org/abs/2104.10196
http://arxiv.org/abs/2104.10196
Autor:
Benjamin Grimmer
Publikováno v:
Algorithmica. 80:2849-2873
We consider a variety of NP-Complete network connectivity problems. We introduce a novel dual-based approach to approximating network design problems with cut-based linear programming relaxations. This approach gives a $3/2$-approximation to Minimum