Zobrazeno 1 - 10
of 2 259
pro vyhledávání: '"A. Bonnaire"'
Autor:
Gallo, Stefano, Aghanim, Nabila, Gouin, Céline, Eckert, Dominique, Douspis, Marian, Paste, Jade, Bonnaire, Tony
Publikováno v:
A&A 692, A200 (2024)
Filaments connected to galaxy clusters are crucial environments to study the building up of cosmic structures as they funnel matter towards the clusters' deep gravitational potentials. Identifying gas in filaments is a challenge, due to their lower d
Externí odkaz:
http://arxiv.org/abs/2407.10518
We present a new approach leveraging the Sliding Frank--Wolfe algorithm to address the challenge of line recovery in degraded images. Building upon advances in conditional gradient methods for sparse inverse problems with differentiable measurement m
Externí odkaz:
http://arxiv.org/abs/2403.11649
We provide an analytical study of the evolution of the Hessian during gradient descent dynamics, and relate a transition in its spectral properties to the ability of finding good minima. We focus on the phase retrieval problem as a case study for com
Externí odkaz:
http://arxiv.org/abs/2403.02418
Using statistical physics methods, we study generative diffusion models in the regime where the dimension of space and the number of data are large, and the score function has been trained optimally. Our analysis reveals three distinct dynamical regi
Externí odkaz:
http://arxiv.org/abs/2402.18491
Publikováno v:
A&A 689, A332 (2024)
Multiple-cluster systems, superclusters, contain large numbers of galaxies assembled in clusters inter-connected by multi-scale filamentary networks. As such, superclusters are a smaller version of the cosmic web and can be considered as miniature un
Externí odkaz:
http://arxiv.org/abs/2402.18455
In this paper, we develop a general method to estimate the instantaneous frequencies of the modes making up a multicomponent signal when the former exhibit interference in the time-frequency plane. In particular, studying the representation given by
Externí odkaz:
http://arxiv.org/abs/2312.14500
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract We study generative diffusion models in the regime where both the data dimension and the sample size are large, and the score function is trained optimally. Using statistical physics methods, we identify three distinct dynamical regimes duri
Externí odkaz:
https://doaj.org/article/db919330e31f4240b0f565cf222d4db2
Autor:
Bonnaire, Tony, Ghio, Davide, Krishnamurthy, Kamesh, Mignacco, Francesca, Yamamura, Atsushi, Biroli, Giulio
In these lecture notes we present different methods and concepts developed in statistical physics to analyze gradient descent dynamics in high-dimensional non-convex landscapes. Our aim is to show how approaches developed in physics, mainly statistic
Externí odkaz:
http://arxiv.org/abs/2308.03754
Autor:
L. Bouby, V. Bonhomme, S. Ivorra, R. Bacilieri, S. Ben Makhad, E. Bonnaire, M. Cabanis, M. Derreumaux, M. F. Dietsch-Sellami, F. Durand, A. Evin, I. Figueiral, L. Flottes, C. Hallavant, F. Jedrusiak, T. Lacombe, P. Marinval, L. Martin, V. Matterne, C. Pagnoux, T. Pastor, R. Pinaud, B. Pradat, S. Preiss, J. Ros, N. Rovira, M. P. Ruas, C. Schaal, M. Tillier, F. Toulemonde, J. Wiethold, J. F. Terral
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract The cultivation of grapevines has spanned millennia, leading to thousands of varieties through exchanges, mutations, and crosses between genotypes, as well probably as gene flow from wild populations. These varieties are typically categorize
Externí odkaz:
https://doaj.org/article/97cdcfa76eb44155a79e04110d07f6fc
Autor:
Julius Michael Wolfgart, Lea Cathrine Grötzner, Sascha Hemayatkar-Fink, Maik Schwitalle, Florian Christof Bonnaire, Martina Feierabend, Marina Danalache, Ulf Krister Hofmann
Publikováno v:
Journal of Orthopaedic Translation, Vol 48, Iss , Pp 232-243 (2024)
Background: In healthy articular cartilage, chondrocytes are found along arcades of collagen fibers as Single Strings. With onset of cartilage degeneration this pattern changes to Double Strings. In the course of osteoarthritis Small Clusters, and fi
Externí odkaz:
https://doaj.org/article/fb59ad23a07d4a80923f034b82799129