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Sparse deep neural networks have proven to be efficient for predictive model building in large-scale studies. Although several works have studied theoretical and numerical properties of sparse neural architectures, they have primarily…

机器学习 · 统计学 2023-09-18 Sanket Jantre , Shrijita Bhattacharya , Tapabrata Maiti

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

High dimensional statistics deals with the challenge of extracting structured information from complex model settings. Compared with the growing number of frequentist methodologies, there are rather few theoretically optimal Bayes methods…

统计理论 · 数学 2018-08-21 Chao Gao , Aad W. van der Vaart , Harrison H. Zhou

Many problems of low-level computer vision and image processing, such as denoising, deconvolution, tomographic reconstruction or super-resolution, can be addressed by maximizing the posterior distribution of a sparse linear model (SLM). We…

机器学习 · 统计学 2010-08-16 Matthias W. Seeger , Hannes Nickisch

We propose a general framework using spike-and-slab prior distributions to aid with the development of high-dimensional Bayesian inference. Our framework allows inference with a general quasi-likelihood function. We show that highly…

统计理论 · 数学 2019-08-21 Yves Atchade , Anwesha Bhattacharyya

In this work the issue of Bayesian inference for stationary data is addressed. Therefor a parametrization of a statistically suitable subspace of the the shift-ergodic probability measures on a Cartesian product of some finite state space…

统计理论 · 数学 2017-10-24 Fritz Moritz von Rohrscheidt

Function plays an important role in mathematics and many science branches. As the fast development of computer technology, more and more study on computational function analysis, e.g., Fast Fourier Transform, Wavelet Transform, Curve…

机器学习 · 计算机科学 2022-09-21 Changlin Wan , Zhongzhi Shi

Optimality results for two outstanding Bayesian estimation problems are given in this paper: the estimation of the sampling distribution for the squared total variation function and the estimation of the density for the $L^1$-squared loss…

统计理论 · 数学 2021-10-28 A. G. Nogales

Bayesian deep learning approaches assume model parameters to be latent random variables and infer posterior distributions to quantify uncertainty, increase safety and trust, and prevent overconfident and unpredictable behavior. However,…

机器学习 · 计算机科学 2023-07-13 Jihao Andreas Lin , Joe Watson , Pascal Klink , Jan Peters

The paper addresses joint sparsity selection in the regression coefficient matrix and the error precision (inverse covariance) matrix for high-dimensional multivariate regression models in the Bayesian paradigm. The selected sparsity…

统计方法学 · 统计学 2022-01-19 Srijata Samanta , Kshitij Khare , George Michailidis

We introduce a Fourier-based fast algorithm for Gaussian process regression in low dimensions. It approximates a translationally-invariant covariance kernel by complex exponentials on an equispaced Cartesian frequency grid of $M$ nodes.…

统计计算 · 统计学 2023-05-19 Philip Greengard , Manas Rachh , Alex Barnett

We consider a novel Bayesian approach to estimation, uncertainty quantification, and variable selection for a high-dimensional linear regression model under sparsity. The number of predictors can be nearly exponentially large relative to…

统计方法学 · 统计学 2025-02-28 Samhita Pal , Subhashis Ghoshal

Hierarchical parametric models consisting of observable and latent variables are widely used for unsupervised learning tasks. For example, a mixture model is a representative hierarchical model for clustering. From the statistical point of…

机器学习 · 统计学 2014-01-24 Keisuke Yamazaki

In this paper, we propose a new Bayesian inference method for a high-dimensional sparse factor model that allows both the factor dimensionality and the sparse structure of the loading matrix to be inferred. The novelty is to introduce a…

机器学习 · 统计学 2023-05-31 Ilsang Ohn , Lizhen Lin , Yongdai Kim

Generalized linear models (GLMs) are routinely used for modeling relationships between a response variable and a set of covariates. The simple form of a GLM comes with easy interpretability, but also leads to concerns about model…

统计方法学 · 统计学 2023-11-10 Davide Agnoletto , Tommaso Rigon , David B. Dunson

Simultaneous analysis of gene expression data and genetic variants is highly of interest, especially when the number of gene expressions and genetic variants are both greater than the sample size. Association of both causal genes and…

统计方法学 · 统计学 2021-10-07 Morteza Amini

We propose a general algorithmic framework for Bayesian model selection. A spike-and-slab Laplacian prior is introduced to model the underlying structural assumption. Using the notion of effective resistance, we derive an EM-type algorithm…

统计方法学 · 统计学 2020-06-19 Youngseok Kim , Chao Gao

Expectation propagation is a general prescription for approximation of integrals in statistical inference problems. Its literature is mainly concerned with Bayesian inference scenarios. However, expectation propagation can also be used to…

统计方法学 · 统计学 2018-05-23 P. Hall , I. M. Johnstone , J. T. Ormerod , M. P. Wand , J. C. F. Yu

Conformal prediction is a general method that converts almost any point predictor to a prediction set. The resulting set keeps good statistical properties of the original estimator under standard assumptions, and guarantees valid average…

统计方法学 · 统计学 2017-08-02 Jing Lei

We study the theoretical properties of the fused lasso procedure originally proposed by \cite{tibshirani2005sparsity} in the context of a linear regression model in which the regression coefficient are totally ordered and assumed to be…

统计理论 · 数学 2023-06-28 Fan Wang , Oscar Hernan Madrid Padilla , Yi Yu , Alessandro Rinaldo