Zobrazeno 1 - 10
of 8 299
pro vyhledávání: '"A. Chopin"'
Assuming X is a random vector and A a non-invertible matrix, one sometimes need to perform inference while only having access to samples of Y = AX. The corresponding likelihood is typically intractable. One may still be able to perform exact Bayesian
Externí odkaz:
http://arxiv.org/abs/2410.18243
Autor:
Chopin, Jeremy, Dahyot, Rozenn
Data embeddings with CLIP and ImageBind provide powerful features for the analysis of multimedia and/or multimodal data. We assess their performance here for classification using a Gaussian Mixture models (GMMs) based layer as an alternative to the s
Externí odkaz:
http://arxiv.org/abs/2410.13421
In this paper we propose a novel, general purpose, algorithm to optimize functions $l\colon \mathbb{R}^d \rightarrow \mathbb{R}$ not assumed to be convex or differentiable or even continuous. The main idea is to sequentially fit a sequence of paramet
Externí odkaz:
http://arxiv.org/abs/2408.00888
This work investigates the offline formulation of the contextual bandit problem, where the goal is to leverage past interactions collected under a behavior policy to evaluate, select, and learn new, potentially better-performing, policies. Motivated
Externí odkaz:
http://arxiv.org/abs/2405.14335
Given a smooth function $f$, we develop a general approach to turn Monte Carlo samples with expectation $m$ into an unbiased estimate of $f(m)$. Specifically, we develop estimators that are based on randomly truncating the Taylor series expansion of
Externí odkaz:
http://arxiv.org/abs/2403.20313
Autor:
Gomes, Tristan da Câmara Santa Clara, Marchal, Nicolas, Moureaux, Anatole, de Wergifosse, Simon, Chopin, Chloé, Piraux, Luc, Medina, Joaquín de la Torre, Araujo, Flavio Abreu
Publikováno v:
Physical Review Research 6, 023211 (2024)
Three-dimensional interconnected nanowire networks have recently attracted notable attention for the fabrication of new devices for energy harvesting/storage, sensing, catalysis, magnetic and spintronic applications and for the design of new hardware
Externí odkaz:
http://arxiv.org/abs/2401.06158
Micromagnetic simulations are used to study a spin-torque vortex oscillator excited by an out-of-plane dc current. The vortex core gyration amplitude is confined between two orbits due to periodical vortex core polarity reversals. The upper limit cor
Externí odkaz:
http://arxiv.org/abs/2312.02800
This paper explores the connections between tempering (for Sequential Monte Carlo; SMC) and entropic mirror descent to sample from a target probability distribution whose unnormalized density is known. We establish that tempering SMC corresponds to e
Externí odkaz:
http://arxiv.org/abs/2310.11914
Publikováno v:
Phys. Rev. E 109, 025003 (2024)
We investigate the elastic energy stored in a filament pair as a function of applied twist by measuring torque under prescribed end-to-end separation conditions. We show that the torque increases rapidly to a peak with applied twist when the filament
Externí odkaz:
http://arxiv.org/abs/2309.11344
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-6 (2024)
Abstract Micromagnetic simulations are used to study a spin-torque vortex oscillator excited by an out-of-plane dc current. The vortex core gyration amplitude is confined between two orbits due to periodical vortex core polarity reversals. The upper
Externí odkaz:
https://doaj.org/article/3a2d0097a7bb4aa3a33b9dc35a2ba422
