Search Results - "Vono, Maxime"
-
1
Split-and-Augmented Gibbs Sampler-Application to Large-Scale Inference Problems
Published in IEEE transactions on signal processing (15-03-2019)“…This paper derives two new optimization-driven Monte Carlo algorithms inspired from variable splitting and data augmentation. In particular, the formulation of…”
Get full text
Journal Article -
2
Asymptotically Exact Data Augmentation: Models, Properties, and Algorithms
Published in Journal of computational and graphical statistics (18-11-2021)“…Data augmentation, by the introduction of auxiliary variables, has become an ubiquitous technique to improve convergence properties, simplify the…”
Get full text
Journal Article -
3
Bayesian Image Restoration under Poisson Noise and Log-concave Prior
Published in ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-05-2019)“…In recent years, much research has been devoted to the restoration of Poissonian images using optimization-based methods. On the other hand, the derivation of…”
Get full text
Conference Proceeding -
4
Efficient Sampling through Variable Splitting-inspired Bayesian Hierarchical Models
Published in ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-05-2019)“…Markov chain Monte Carlo (MCMC) methods are an important class of computation techniques to solve Bayesian inference problems. Much recent research has been…”
Get full text
Conference Proceeding -
5
Distribution-Aware Mean Estimation under User-level Local Differential Privacy
Published 12-10-2024“…We consider the problem of mean estimation under user-level local differential privacy, where $n$ users are contributing through their local pool of data…”
Get full text
Journal Article -
6
SPARSE BAYESIAN BINARY LOGISTIC REGRESSION USING THE SPLIT-AND-AUGMENTED GIBBS SAMPLER
Published in 2018 IEEE 28th International Workshop on Machine Learning for Signal Processing (MLSP) (01-09-2018)“…Logistic regression has been extensively used to perform classification in machine learning and signal/image processing. Bayesian formulations of this model…”
Get full text
Conference Proceeding -
7
Personalised Federated Learning On Heterogeneous Feature Spaces
Published 26-01-2023“…Most personalised federated learning (FL) approaches assume that raw data of all clients are defined in a common subspace i.e. all clients store their data…”
Get full text
Journal Article -
8
FedPop: A Bayesian Approach for Personalised Federated Learning
Published 07-06-2022“…Personalised federated learning (FL) aims at collaboratively learning a machine learning model taylored for each client. Albeit promising advances have been…”
Get full text
Journal Article -
9
High-dimensional Gaussian sampling: a review and a unifying approach based on a stochastic proximal point algorithm
Published 04-10-2020“…Efficient sampling from a high-dimensional Gaussian distribution is an old but high-stake issue. Vanilla Cholesky samplers imply a computational cost and…”
Get full text
Journal Article -
10
Asymptotically exact data augmentation: models, properties and algorithms
Published 10-09-2020“…Data augmentation, by the introduction of auxiliary variables, has become an ubiquitous technique to improve convergence properties, simplify the…”
Get full text
Journal Article -
11
DU-Shapley: A Shapley Value Proxy for Efficient Dataset Valuation
Published 03-06-2023“…We consider the dataset valuation problem, that is, the problem of quantifying the incremental gain, to some relevant pre-defined utility of a machine learning…”
Get full text
Journal Article -
12
DG-LMC: A Turn-key and Scalable Synchronous Distributed MCMC Algorithm via Langevin Monte Carlo within Gibbs
Published 11-06-2021“…Performing reliable Bayesian inference on a big data scale is becoming a keystone in the modern era of machine learning. A workhorse class of methods to…”
Get full text
Journal Article -
13
QLSD: Quantised Langevin stochastic dynamics for Bayesian federated learning
Published 01-06-2021“…The objective of Federated Learning (FL) is to perform statistical inference for data which are decentralised and stored locally on networked clients. FL…”
Get full text
Journal Article -
14
Efficient MCMC Sampling with Dimension-Free Convergence Rate using ADMM-type Splitting
Published 23-05-2019“…Performing exact Bayesian inference for complex models is computationally intractable. Markov chain Monte Carlo (MCMC) algorithms can provide reliable…”
Get full text
Journal Article -
15
Split-and-augmented Gibbs sampler - Application to large-scale inference problems
Published 10-10-2018“…This paper derives two new optimization-driven Monte Carlo algorithms inspired from variable splitting and data augmentation. In particular, the formulation of…”
Get full text
Journal Article -
16
Mixture of noises and sampling of non-log-concave posterior distributions
Published in 2022 30th European Signal Processing Conference (EUSIPCO) (29-08-2022)“…This work considers a challenging radio-astronomy inverse problem of physical parameter inference from multispectral observations. The forward model underlying…”
Get full text
Conference Proceeding -
17
Gas kinematics around filamentary structures in the Orion B cloud
Published 25-11-2022“…A&A 670, A59 (2023) Understanding the initial properties of star-forming material and how they affect the star formation process is key. From an observational…”
Get full text
Journal Article -
18
Quantitative inference of the $H_2$ column densities from 3 mm molecular emission: A case study towards Orion B
Published 31-08-2020“…A&A 645, A27 (2021) Molecular hydrogen being unobservable in cold molecular clouds, the column density measurements of molecular gas currently rely either on…”
Get full text
Journal Article -
19
Tracers of the ionization fraction in dense and translucent gas: I. Automated exploitation of massive astrochemical model grids
Published 27-07-2020“…A&A 645, A28 (2021) The ionization fraction plays a key role in the physics and chemistry of the neutral interstellar medium, from controlling the coupling of…”
Get full text
Journal Article -
20
C18O, 13CO, and 12CO abundances and excitation temperatures in the Orion B molecular cloud: An analysis of the precision achievable when modeling spectral line within the Local Thermodynamic Equilibrium approximation
Published 17-05-2020“…A&A 645, A26 (2021) CO isotopologue transitions are routinely observed in molecular clouds to probe the column density of the gas, the elemental ratios of…”
Get full text
Journal Article