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Sparse structure learning in high-dimensional Gaussian graphical models is an important problem in multivariate statistical signal processing; since the sparsity pattern naturally encodes the conditional independence relationship among…

统计方法学 · 统计学 2023-09-26 Ksheera Sagar , Jyotishka Datta , Sayantan Banerjee , Anindya Bhadra

This paper develops some objective priors for certain parameters of the bivariate normal distribution. The parameters considered are the regression coefficient, the generalized variance, and the ratio of the conditional variance of one…

统计理论 · 数学 2008-12-18 Malay Ghosh , Upasana Santra , Dalho Kim

In this paper we compare and contrast the behavior of the posterior predictive distribution to the risk of the maximum a posteriori estimator for the random features regression model in the overparameterized regime. We will focus on the…

机器学习 · 统计学 2023-10-30 Youngsoo Baek , Samuel I. Berchuck , Sayan Mukherjee

Maximum a posteriori (MAP) estimation, like all Bayesian methods, depends on prior assumptions. These assumptions are often chosen to promote specific features in the recovered estimate. The form of the chosen prior determines the shape of…

统计方法学 · 统计学 2022-11-15 Zilai Si , Yucong Liu , Alexander Strang

Many Bayesian statistical inference problems come down to computing a maximum a-posteriori (MAP) assignment of latent variables. Yet, standard methods for estimating the MAP assignment do not have a finite time guarantee that the algorithm…

机器学习 · 统计学 2024-10-31 Harsh Vardhan Dubey , Ji Ah Lee , Patrick Flaherty

The replica method is a non-rigorous but well-known technique from statistical physics used in the asymptotic analysis of large, random, nonlinear problems. This paper applies the replica method, under the assumption of replica symmetry, to…

信息论 · 计算机科学 2015-01-20 Sundeep Rangan , Alyson K. Fletcher , Vivek K Goyal

Observational astrophysics consists of making inferences about the Universe by comparing data and models. The credible intervals placed on model parameters are often as important as the maximum a posteriori probability values, as the…

天体物理仪器与方法 · 物理学 2021-12-15 Will J. Percival , Oliver Friedrich , Elena Sellentin , Alan Heavens

Approximate Bayesian computation allows for statistical analysis in models with intractable likelihoods. In this paper we consider the asymptotic behaviour of the posterior distribution obtained by this method. We give general results on…

统计方法学 · 统计学 2018-05-09 David T. Frazier , Gael M. Martin , Christian P. Robert , Judith Rousseau

Computing the conditional mode of a distribution, better known as the $\mathit{maximum\ a\ posteriori}$ (MAP) assignment, is a fundamental task in probabilistic inference. However, MAP estimation is generally intractable, and remains hard…

机器学习 · 计算机科学 2026-01-23 Matthew Shorvon , Frederik Mallmann-Trenn , David S. Watson

Regularized linear regression is central to machine learning, yet its high-dimensional behavior with informative priors remains poorly understood. We provide the first exact asymptotic characterization of training and test risks for maximum…

机器学习 · 统计学 2026-01-28 Malik Tiomoko , Ekkehard Schnoor

By representing the range of fair betting odds according to a pair of confidence set estimators, dual probability measures on parameter space called frequentist posteriors secure the coherence of subjective inference without any prior…

统计理论 · 数学 2012-05-02 David R. Bickel

We study full Bayesian procedures for high-dimensional linear regression under sparsity constraints. The prior is a mixture of point masses at zero and continuous distributions. Under compatibility conditions on the design matrix, the…

统计理论 · 数学 2015-10-15 Ismaël Castillo , Johannes Schmidt-Hieber , Aad van der Vaart

A common problem in natural sciences is the comparison of competing models in the light of observed data. Bayesian model comparison provides a statistically sound framework for this comparison based on the evidence each model provides for…

机器学习 · 统计学 2022-03-23 Jan Boelts

We consider the asymptotic behavior of posterior distributions and Bayes estimators based on observations which are required to be neither independent nor identically distributed. We give general results on the rate of convergence of the…

统计理论 · 数学 2009-09-29 Subhashis Ghosal , Aad van der Vaart

The Bayesian formulation of inverse problems is attractive for three primary reasons: it provides a clear modelling framework; means for uncertainty quantification; and it allows for principled learning of hyperparameters. The posterior…

统计理论 · 数学 2019-05-14 Matthew M. Dunlop , Tapio Helin , Andrew M. Stuart

A new approach for Bayesian model averaging (BMA) and selection is proposed, based on the mixture model approach for hypothesis testing in Kaniav et al., 2014. Inheriting from the good properties of this approach, it extends BMA to cases…

统计方法学 · 统计学 2018-08-02 Merlin Keller , Kaniav Kamary

The maximum a-posteriori (MAP) perturbation framework has emerged as a useful approach for inference and learning in high dimensional complex models. By maximizing a randomly perturbed potential function, MAP perturbations generate unbiased…

机器学习 · 计算机科学 2013-10-17 Francesco Orabona , Tamir Hazan , Anand D. Sarwate , Tommi Jaakkola

The martingale posterior framework is a generalization of Bayesian inference where one elicits a sequence of one-step ahead predictive densities instead of the likelihood and prior. Posterior sampling then involves the imputation of unseen…

统计理论 · 数学 2026-03-02 Edwin Fong , Andrew Yiu

We revisit the question of priors that achieve approximate matching of Bayesian and frequentist predictive probabilities. Such priors may be thought of as providing frequentist calibration of Bayesian prediction or simply as devices for…

统计理论 · 数学 2008-12-18 Trevor J. Sweeting

Federated Bayesian neural networks require fixing a prior on the model parameters together with a likelihood. Eliciting meaningful priors on the weight space of modern overparameterized models is notoriously difficult, and misspecification…

机器学习 · 计算机科学 2026-05-19 Boning Zhang , Matteo Zecchin , Mingzhao Guo , Dongzhu Liu , Osvaldo Simeone
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