Search Results for author: Yves Atchade

Found 4 papers, 1 papers with code

On Cyclical MCMC Sampling

no code implementations1 Mar 2024 LiWei Wang, Xinru Liu, Aaron Smith, Yves Atchade

Cyclical MCMC is a novel MCMC framework recently proposed by Zhang et al. (2019) to address the challenge posed by high-dimensional multimodal posterior distributions like those arising in deep learning.

A statistical perspective on algorithm unrolling models for inverse problems

no code implementations10 Nov 2023 Yves Atchade, Xinru Liu, Qiuyun Zhu

We show that the unrolling depth needed for the optimal statistical performance of GDNs is of order $\log(n)/\log(\varrho_n^{-1})$, where $n$ is the sample size, and $\varrho_n$ is the convergence rate of the corresponding gradient descent algorithm.

Minimax Quasi-Bayesian estimation in sparse canonical correlation analysis via a Rayleigh quotient function

1 code implementation16 Oct 2020 Qiuyun Zhu, Yves Atchade

The method builds on Tan et al. (2018) and uses a re-scaled Rayleigh quotient function as the quasi-log-likelihood.

Sequential change-point detection in high-dimensional Gaussian graphical models

no code implementations20 Jun 2018 Hossein Keshavarz, George Michailidis, Yves Atchade

High dimensional piecewise stationary graphical models represent a versatile class for modelling time varying networks arising in diverse application areas, including biology, economics, and social sciences.

Change Point Detection Vocal Bursts Intensity Prediction

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