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We establish optimal convergence rates for a decomposition-based scalable approach to kernel ridge regression. The method is simple to describe: it randomly partitions a dataset of size N into m subsets of equal size, computes an…

统计理论 · 数学 2014-05-01 Yuchen Zhang , John C. Duchi , Martin J. Wainwright

In this paper, we consider the problem of estimating the covariance kernel and its eigenvalues and eigenfunctions from sparse, irregularly observed, noise corrupted and (possibly) correlated functional data. We present a method based on…

统计方法学 · 统计学 2008-07-09 Debashis Paul , Jie Peng

Discrete kernel smoothing is now gaining importance in nonparametric statistics. In this paper, we investigate some asymptotic properties of the normalized discrete associated-kernel estimator of a probability mass function. We show, under…

统计理论 · 数学 2025-02-11 Youssef Esstafa , Célestin C. Kokonendji , Sobom M. Somé

We study distributed learning with the least squares regularization scheme in a reproducing kernel Hilbert space (RKHS). By a divide-and-conquer approach, the algorithm partitions a data set into disjoint data subsets, applies the least…

机器学习 · 计算机科学 2017-03-14 Shao-Bo Lin , Xin Guo , Ding-Xuan Zhou

This paper considers the partially functional linear model (PFLM) where all predictive features consist of a functional covariate and a high dimensional scalar vector. Over an infinite dimensional reproducing kernel Hilbert space, the…

统计理论 · 数学 2021-10-19 Shaogao Lv , Xin He , Junhui Wang

In recent years, kernel density estimation has been exploited by computer scientists to model machine learning problems. The kernel density estimation based approaches are of interest due to the low time complexity of either O(n) or…

机器学习 · 统计学 2007-10-16 Yen-Jen Oyang , Darby Tien-Hao Chang , Yu-Yen Ou , Hao-Geng Hung , Chih-Peng Wu , Chien-Yu Chen

Algorithmic robust statistics has traditionally focused on the contamination model where a small fraction of the samples are arbitrarily corrupted. We consider a recent contamination model that combines two kinds of corruptions: (i) small…

数据结构与算法 · 计算机科学 2024-10-23 Thanasis Pittas , Ankit Pensia

We provide a new estimator of integral operators with smooth kernels, obtained from a set of scattered and noisy impulse responses. The proposed approach relies on the formalism of smoothing in reproducing kernel Hilbert spaces and on the…

信息论 · 计算机科学 2017-12-04 Jérémie Bigot , Paul Escande , Pierre Weiss

In the setting of entangled single-sample distributions, the goal is to estimate some common parameter shared by a family of distributions, given one \emph{single} sample from each distribution. We study mean estimation and linear…

机器学习 · 计算机科学 2020-07-08 Hui Yuan , Yingyu Liang

For the conditional mean function of panel count model with time-varying coefficients, we propose to use local kernel regression method for estimation. Partial log-likelihood with local polynomial is formed for estimation. Under some…

统计理论 · 数学 2019-03-26 Yang Wang , Zhangsheng Yu

Various methods in statistical learning build on kernels considered in reproducing kernel Hilbert spaces. In applications, the kernel is often selected based on characteristics of the problem and the data. This kernel is then employed to…

机器学习 · 统计学 2024-03-12 Paul Dommel , Alois Pichler

Previous analysis of regularized functional linear regression in a reproducing kernel Hilbert space (RKHS) typically requires the target function to be contained in this kernel space. This paper studies the convergence performance of…

机器学习 · 统计学 2024-02-20 Jiading Liu , Lei Shi

We present estimators for smooth Hilbert-valued parameters, where smoothness is characterized by a pathwise differentiability condition. When the parameter space is a reproducing kernel Hilbert space, we provide a means to obtain efficient,…

统计理论 · 数学 2023-09-28 Alex Luedtke , Incheoul Chung

In this paper, we consider a partial deconvolution kernel estimator for nonparametric regression when some covariates are measured with error while others are observed without error. We focus on a general and realistic setting in which the…

统计理论 · 数学 2026-01-29 Baba Thiam

Coresets are among the most popular paradigms for summarizing data. In particular, there exist many high performance coresets for clustering problems such as $k$-means in both theory and practice. Curiously, there exists no work on…

数据结构与算法 · 计算机科学 2022-07-05 Chris Schwiegelshohn , Omar Ali Sheikh-Omar

Computing a consensus object from a set of given objects is a core problem in machine learning and pattern recognition. One popular approach is to formulate it as an optimization problem using the generalized median. Previous methods like…

计算机视觉与模式识别 · 计算机科学 2022-09-22 Andreas Nienkötter , Xiaoyi Jiang

This paper tackles the problem of selecting among several linear estimators in non-parametric regression; this includes model selection for linear regression, the choice of a regularization parameter in kernel ridge regression, spline…

统计理论 · 数学 2011-09-15 Sylvain Arlot , Francis Bach

Reduced modeling in high-dimensional reproducing kernel Hilbert spaces offers the opportunity to approximate efficiently non-linear dynamics. In this work, we devise an algorithm based on low rank constraint optimization and kernel-based…

机器学习 · 计算机科学 2020-02-23 Patrick Heas , Cedric Herzet , Benoit Combes

Mean-field control problems have received continuous interest over the last decade. Despite being more intricate than in classical optimal control, the linear-quadratic setting can still be tackled through Riccati equations. Remarkably, we…

最优化与控制 · 数学 2023-08-23 Pierre-Cyril Aubin-Frankowski , Alain Bensoussan

We consider shrinkage estimation of higher order Hilbert space valued Bochner integrals in a non-parametric setting. We propose estimators that shrink the $U$-statistic estimator of the Bochner integral towards a pre-specified target…

统计理论 · 数学 2022-07-22 Saiteja Utpala , Bharath K. Sriperumbudur