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By chaining a sequence of differentiable invertible transformations, normalizing flows (NF) provide an expressive method of posterior approximation, exact density evaluation, and sampling. The trend in normalizing flow literature has been…

机器学习 · 计算机科学 2020-10-20 Robert Giaquinto , Arindam Banerjee

By discussing several examples, the theory of generalized functional models is shown to be very natural for modeling some situations of reasoning under uncertainty. A generalized functional model is a pair (f, P) where f is a function…

人工智能 · 计算机科学 2013-02-08 Paul-Andre Monney

In genetical genomics studies, it is important to jointly analyze gene expression data and genetic variants in exploring their associations with complex traits, where the dimensionality of gene expressions and genetic variants can both be…

统计方法学 · 统计学 2014-04-15 Wei Lin , Rui Feng , Hongzhe Li

Simultaneously performing variable selection and inference in high-dimensional regression models is an open challenge in statistics and machine learning. The increasing availability of vast amounts of variables requires the adoption of…

统计方法学 · 统计学 2025-05-08 Marco Molinari , Magne Thoresen

The concepts of sparsity, and regularised estimation, have proven useful in many high-dimensional statistical applications. Dynamic factor models (DFMs) provide a parsimonious approach to modelling high-dimensional time series, however, it…

统计方法学 · 统计学 2023-03-22 Luke Mosley , Tak-Shing T. Chan , Alex Gibberd

We introduce a general framework for testing goodness-of-fit for Gaussian graphical models in both the low- and high-dimensional settings. This framework is based on a novel algorithm for generating exchangeable copies by conditioning on…

统计方法学 · 统计学 2025-01-07 Xiaotong Lin , Weihao Li , Fangqiao Tian , Dongming Huang

We present a unified framework for estimation and analysis of generalized additive models in high dimensions. The framework defines a large class of penalized regression estimators, encompassing many existing methods. An efficient…

统计方法学 · 统计学 2019-03-13 Asad Haris , Noah Simon , Ali Shojaie

This article investigates uncertainty quantification of the generalized linear lasso~(GLL), a popular variable selection method in high-dimensional regression settings. In many fields of study, researchers use data-driven methods to select…

统计理论 · 数学 2023-07-11 Quentin Duchemin , Yohann de Castro

This paper presents GGRt, a novel approach to generalizable novel view synthesis that alleviates the need for real camera poses, complexity in processing high-resolution images, and lengthy optimization processes, thus facilitating stronger…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Hao Li , Yuanyuan Gao , Chenming Wu , Dingwen Zhang , Yalun Dai , Chen Zhao , Haocheng Feng , Errui Ding , Jingdong Wang , Junwei Han

We introduce and study the Group Square-Root Lasso (GSRL) method for estimation in high dimensional sparse regression models with group structure. The new estimator minimizes the square root of the residual sum of squares plus a penalty…

统计理论 · 数学 2013-08-01 Florentina Bunea , Johannes Lederer , Yiyuan She

In this paper, we propose a meshfree method based on the Gaussian radial basis function (RBF) to solve both classical and fractional PDEs. The proposed method takes advantage of the analytical Laplacian of Gaussian functions so as to…

数值分析 · 数学 2021-06-21 John Burkardt , Yixuan Wu , Yanzhi Zhang

We propose a nonparametric density estimator based on the Gaussian process (GP) and derive three novel closed form learning algorithms based on Fisher divergence (FD) score matching. The density estimator is formed by multiplying a base…

机器学习 · 计算机科学 2025-11-17 John Paisley , Wei Zhang , Brian Barr

The basic problem of shape complementarity analysis appears fundamental to applications as diverse as mechanical design, assembly automation, robot motion planning, micro- and nano-fabrication, protein-ligand binding, and rational drug…

计算几何 · 计算机科学 2017-12-05 Morad Behandish , Horea T. Ilies

Controlling the false discovery rate (FDR) in high-dimensional variable selection requires balancing rigorous error control with statistical power. Existing methods with provable guarantees are often overly conservative, creating a…

统计方法学 · 统计学 2026-02-06 Arnau Vilella , Jasin Machkour , Michael Muma , Daniel P. Palomar

Fisher discriminant analysis (FDA) is a widely used method for classification and dimensionality reduction. When the number of predictor variables greatly exceeds the number of observations, one of the alternatives for conventional FDA is…

机器学习 · 统计学 2018-11-30 Agniva Chowdhury , Jiasen Yang , Petros Drineas

The extraction of parton distribution functions (PDFs) from experimental or lattice QCD data is an ill-posed inverse problem, where regularization strongly impacts both systematic uncertainties and the reliability of the results. We study a…

高能物理 - 格点 · 物理学 2026-02-11 Yamil Cahuana Medrano , Hervé Dutrieux , Joseph Karpie , Kostas Orginos , Savvas Zafeiropoulos

An explicit perturbative computation of the Mori's memory function was performed by G\"otze and W\"olfle (GW) to calculate Generalized Drude scattering (GDS) rate for the case of electron-impurity and electron-phonon scattering in metals by…

超导电性 · 物理学 2016-02-16 Pankaj Bhalla , Navinder Singh

Rank regression offers robustness to outliers and heavy-tailed response distributions, invariance to monotonic transformations, and improved efficiency under non-Gaussian errors, making it a versatile tool for analyzing complex data. This…

统计方法学 · 统计学 2026-05-25 Jiyuan Tu , Suqi Wu , Yichen Zhang , Wen-Xin Zhou

Gaussian Process Regression (GPR) is a Bayesian method for inferring profiles based on input data. The technique is increasing in popularity in the fusion community due to its many advantages over traditional fitting techniques including…

统计方法学 · 统计学 2022-09-07 Jarrod Leddy , Sandeep Madireddy , Eric Howell , Scott Kruger

This paper proposes a model-free and data-adaptive feature screening method for ultra-high dimensional datasets. The proposed method is based on the projection correlation which measures the dependence between two random vectors. This…

统计方法学 · 统计学 2021-02-16 Wanjun Liu , Yuan Ke , Jingyuan Liu , Runze Li