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Given a reproducing kernel Hilbert space H of real-valued functions and a suitable measure mu over the source space D (subset of R), we decompose H as the sum of a subspace of centered functions for mu and its orthogonal in H. This…

机器学习 · 统计学 2012-12-10 Nicolas Durrande , David Ginsbourger , Olivier Roustant , Laurent Carraro

By way of concrete presentations, we construct two infinite-dimensional transforms at the crossroads of Gaussian fields and reproducing kernel Hilbert spaces (RKHS), thus leading to a new infinite-dimensional Fourier transform in a general…

泛函分析 · 数学 2023-03-31 Palle E. T. Jorgensen , Myung-Sin Song , James Feng Tian

Kernel Adaptive Filtering (KAF) are mathematically principled methods which search for a function in a Reproducing Kernel Hilbert Space. While they work well for tasks such as time series prediction and system identification they are…

机器学习 · 计算机科学 2023-12-20 Benjamin Colburn , Jose C. Principe , Luis G. Sanchez Giraldo

Statistical modeling and inference problems with sample sizes substantially smaller than the number of available covariates are challenging. Chakraborty et al. (2012) did a full hierarchical Bayesian analysis of nonlinear regression in such…

机器学习 · 统计学 2022-02-14 Xiao Fang , Malay Ghosh

Sample reweighting is one of the most widely used methods for correcting the error of least squares learning algorithms in reproducing kernel Hilbert spaces (RKHS), that is caused by future data distributions that are different from the…

机器学习 · 计算机科学 2023-07-24 Duc Hoan Nguyen , Sergei V. Pereverzyev , Werner Zellinger

In this paper, we consider the nonparametric least square regression in a Reproducing Kernel Hilbert Space (RKHS). We propose a new randomized algorithm that has optimal generalization error bounds with respect to the square loss, closing a…

机器学习 · 计算机科学 2019-05-28 Kwang-Sung Jun , Ashok Cutkosky , Francesco Orabona

A Kernel Adaptive Metropolis-Hastings algorithm is introduced, for the purpose of sampling from a target distribution with strongly nonlinear support. The algorithm embeds the trajectory of the Markov chain into a reproducing kernel Hilbert…

Statistical machine learning plays an important role in modern statistics and computer science. One main goal of statistical machine learning is to provide universally consistent algorithms, i.e., the estimator converges in probability or…

机器学习 · 统计学 2016-04-18 Andreas Christmann , Florian Dumpert , Dao-Hong Xiang

We study recursive regularized learning algorithms in the reproducing kernel Hilbert space (RKHS) with non-stationary online data streams. We introduce the concept of random Tikhonov regularization path and decompose the tracking error of…

机器学习 · 计算机科学 2025-10-24 Xiwei Zhang , Yan Chen , Tao Li

This paper considers the construction of Reproducing Kernel Hilbert Spaces (RKHS) on the sphere as an alternative to the conventional Hilbert space using the inner product that yields the L^2(S^2) function space of finite energy signals. In…

信息论 · 计算机科学 2013-12-10 Rodney A. Kennedy , Parastoo Sadeghi , Zubair Khalid , Jason D. McEwen

Based on the theory of reproducing kernel Hilbert space (RKHS) and semiparametric method, we propose a new approach to nonlinear dimension reduction. The method extends the semiparametric method into a more generalized domain where both the…

统计方法学 · 统计学 2021-01-06 Wenquan Cui , Haoyang Cheng

This paper addresses the covariate shift problem in the context of nonparametric regression within reproducing kernel Hilbert spaces (RKHSs). Covariate shift arises in supervised learning when the input distributions of the training and…

In Magnetic Resonance Imaging (MRI) data samples are collected in the spatial frequency domain (k-space), typically by time-consuming line-by-line scanning on a Cartesian grid. Scans can be accelerated by simultaneous acquisition of data…

医学物理 · 物理学 2015-03-24 Vivek Athalye , Michael Lustig , Martin Uecker

Under the reproducing kernel Hilbert spaces (RKHS), we consider the penalized least-squares of the partially functional linear models (PFLM), whose predictor contains both functional and traditional multivariate parts, and the multivariate…

统计理论 · 数学 2022-10-03 Huiming Zhang , Xiaoyu Lei

Recently, there has been emerging interest in constructing reproducing kernel Banach spaces (RKBS) for applied and theoretical purposes such as machine learning, sampling reconstruction, sparse approximation and functional analysis.…

机器学习 · 计算机科学 2021-12-09 Rongrong Lin , Haizhang Zhang , Jun Zhang

Random objects are complex non-Euclidean data taking value in general metric space, possibly devoid of any underlying vector space structure. Such data are getting increasingly abundant with the rapid advancement in technology. Examples…

统计方法学 · 统计学 2023-10-13 Satarupa Bhattacharjee , Bing Li , Lingzhou Xue

Estimation of the mean and covariance functions is a fundamental problem in functional data analysis, particularly for discretely observed functional data. In this work, we study a regularization-based framework for estimating the mean and…

统计理论 · 数学 2026-03-20 Naveen Gupta , Bharath K Sriperumbudur

Kernel methods approximate nonlinear maps in a data-driven manner by projecting the target map onto a finite-dimensional Hilbert space called the solution space. Traditionally, this space is a subspace of a fixed ambient reproducing kernel…

数值分析 · 数学 2026-01-30 Tamás Dózsa , Andrea Angino , Zoltán Szabó , József Bokor , Matthias Voigt

Support vector machines (SVMs) are special kernel based methods and belong to the most successful learning methods since more than a decade. SVMs can informally be described as a kind of regularized M-estimators for functions and have…

机器学习 · 统计学 2010-07-26 Andreas Christmann , Robert Hable

To characterize the function space explored by neural networks (NNs) is an important aspect of learning theory. In this work, noticing that a multi-layer NN generates implicitly a hierarchy of reproducing kernel Hilbert spaces (RKHSs) -…

机器学习 · 计算机科学 2024-04-12 Zhengdao Chen