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Model-X knockoffs allows analysts to perform feature selection using almost any machine learning algorithm while still provably controlling the expected proportion of false discoveries. To apply model-X knockoffs, one must construct…

统计方法学 · 统计学 2021-06-30 Asher Spector , Lucas Janson

This manuscript considers the problem of learning a random Gaussian network function using a fully connected network with frozen intermediate layers and trainable readout layer. This problem can be seen as a natural generalization of the…

机器学习 · 统计学 2023-02-02 Dominik Schröder , Hugo Cui , Daniil Dmitriev , Bruno Loureiro

Pairwise comparisons are widely used in decision analysis, preference modeling, and evaluation problems. In many practical situations, the observed comparison matrix is not reciprocal. This lack of reciprocity is often treated as a defect…

机器学习 · 统计学 2026-04-07 Jean-Pierre Magnot

Gaussian processes are a powerful framework for quantifying uncertainty and for sequential decision-making but are limited by the requirement of solving linear systems. In general, this has a cubic cost in dataset size and is sensitive to…

We theoretically investigate the phenomena of generalization and memorization in diffusion models. Empirical studies suggest that these phenomena are influenced by model complexity and the size of the training dataset. In our experiments,…

机器学习 · 计算机科学 2025-10-09 Anand Jerry George , Rodrigo Veiga , Nicolas Macris

Diffusion models achieve remarkable generation quality, yet face a fundamental challenge known as memorization, where generated samples can replicate training samples exactly. We develop a theoretical framework to explain this phenomenon by…

机器学习 · 计算机科学 2026-03-31 Xinyu Zhou , Jiawei Zhang , Stephen J. Wright

We consider evidence integration from potentially dependent observation processes under varying spatio-temporal sampling resolutions and noise levels. We develop a multi-resolution multi-task (MRGP) framework while allowing for both…

机器学习 · 统计学 2019-11-06 Oliver Hamelijnck , Theodoros Damoulas , Kangrui Wang , Mark Girolami

This paper considers the problem of robust adaptive efficient estimating of a periodic function in a continuous time regression model with the dependent noises given by a general square integrable semimartingale with a conditionally…

统计理论 · 数学 2019-09-24 Evgeny Pchelintsev , Serguei Pergamenshchikov

The classical paradigm of scoring rules is to discriminate between two different forecasts by comparing them with observations. The probability distribution of the observed record is assumed to be perfect as a verification benchmark. In…

统计方法学 · 统计学 2021-08-06 Julie Bessac , Philippe Naveau

Score matching is an estimation procedure that has been developed for statistical models whose probability density function is known up to proportionality but whose normalizing constant is intractable, so that maximum likelihood is…

统计方法学 · 统计学 2024-04-23 Jiazhen Xu , Janice L. Scealy , Andrew T. A. Wood , Tao Zou

We develop a computational procedure to estimate the covariance hyperparameters for semiparametric Gaussian process regression models with additive noise. Namely, the presented method can be used to efficiently estimate the variance of the…

机器学习 · 计算机科学 2022-06-22 Siavash Ameli , Shawn C. Shadden

Supervised learning is all about the ability to generalize knowledge. Specifically, the goal of the learning is to train a classifier using training data, in such a way that it will be capable of classifying new unseen data correctly. In…

机器学习 · 计算机科学 2011-04-04 Ido Ginodi , Amir Globerson

We develop a multidimensional version of Gradient-MUSIC for estimating the frequencies of a nonharmonic signal from noisy samples. The guiding principle is that frequency recovery should be based only on the signal subspace determined by…

最优化与控制 · 数学 2026-03-31 Albert Fannjiang , Weilin Li

Standard supervised learning optimizes for predictive accuracy but remains agnostic to the internal geometry of learned features, often yielding representations that are entangled and brittle. We propose Class-Conditional Activation…

机器学习 · 计算机科学 2026-04-21 Akash Samanta , Manish Pratap Singh , Debasis Chaudhuri

We study the fundamental problem of learning the parameters of a high-dimensional Gaussian in the presence of noise -- where an $\varepsilon$-fraction of our samples were chosen by an adversary. We give robust estimators that achieve…

数据结构与算法 · 计算机科学 2017-11-07 Ilias Diakonikolas , Gautam Kamath , Daniel M. Kane , Jerry Li , Ankur Moitra , Alistair Stewart

Gaussian processes are a natural way of defining prior distributions over functions of one or more input variables. In a simple nonparametric regression problem, where such a function gives the mean of a Gaussian distribution for an…

数据分析、统计与概率 · 物理学 2008-02-03 Radford M. Neal

In state estimation algorithms that use feature tracks as input, it is customary to assume that the errors in feature track positions are zero-mean Gaussian. Using a combination of calibrated camera intrinsics, ground-truth camera pose, and…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Stephanie Tsuei , Wenjie Mo , Stefano Soatto

We consider the estimation of an n-dimensional vector s from the noisy element-wise measurements of $\mathbf{s}\mathbf{s}^T$, a generic problem that arises in statistics and machine learning. We study a mismatched Bayesian inference…

信息论 · 计算机科学 2021-09-14 Farzad Pourkamali , Nicolas Macris

In this paper, we investigate Gaussian process regression models where inputs are subject to measurement error. In spatial statistics, input measurement errors occur when the geographical locations of observed data are not known exactly.…

统计方法学 · 统计学 2015-06-30 Daniel Cervone , Natesh S. Pillai

Sequential testing problems involve a complex system with several components, each of which is "working" with some independent probability. The outcome of each component can be determined by performing a test, which incurs some cost. The…

数据结构与算法 · 计算机科学 2023-08-22 Rohan Ghuge , Anupam Gupta , Viswanath Nagarajan