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We introduce a kernel estimator, to the tail index of a right-censored Pareto-type distribution, that generalizes Worms's one (Worms and Worms, 2014)in terms of weight coefficients. Under some regularity conditions, the asymptotic normality…

统计理论 · 数学 2021-10-15 Abdelhakim Necir , Louiza Soltane

Kernel mean embeddings are a popular tool that consists in representing probability measures by their infinite-dimensional mean embeddings in a reproducing kernel Hilbert space. When the kernel is characteristic, mean embeddings can be used…

机器学习 · 计算机科学 2021-06-29 Boris Muzellec , Francis Bach , Alessandro Rudi

The continuous extension of a discrete random variable is amongst the computational methods used for estimation of multivariate normal copula-based models with discrete margins. Its advantage is that the likelihood can be derived…

统计方法学 · 统计学 2014-11-10 Aristidis K. Nikoloulopoulos

In supervised learning with distributional inputs in the two-stage sampling setup, relevant to applications like learning-based medical screening or causal learning, the inputs (which are probability distributions) are not accessible in the…

机器学习 · 计算机科学 2026-01-22 Christian Fiedler

While the hurdle Poisson regression is a popular class of models for count data with excessive zeros, the link function in the binary component may be unsuitable for highly imbalanced cases. Ordinary Poisson regression is unable to handle…

应用统计 · 统计学 2020-08-14 Shuang Yin , Dipak K. Dey , Emiliano A. Valdez , Xiaomeng Li

In this paper we develop a data-driven smoothing technique for high-dimensional and non-linear panel data models. We allow for individual specific (non-linear) functions and estimation with econometric or machine learning methods by using…

统计方法学 · 统计学 2020-01-06 Xi Chen , Ye Luo , Martin Spindler

The density weighted average derivative (DWAD) of a regression function is a canonical parameter of interest in economics. Classical first-order large sample distribution theory for kernel-based DWAD estimators relies on tuning parameter…

计量经济学 · 经济学 2024-02-16 Matias D. Cattaneo , Max H. Farrell , Michael Jansson , Ricardo Masini

Using offline observational data for policy evaluation and learning allows decision-makers to evaluate and learn a policy that connects characteristics and interventions. Most existing literature has focused on either discrete treatment…

人工智能 · 计算机科学 2025-01-22 Cheuk Hang Leung , Yiyan Huang , Yijun Li , Qi Wu

The focus of modern biomedical studies has gradually shifted to explanation and estimation of joint effects of high dimensional predictors on disease risks. Quantifying uncertainty in these estimates may provide valuable insight into…

统计方法学 · 统计学 2021-03-09 Zhe Fei , Yi Li

The paper introduces a new kernel-based Maximum Mean Discrepancy (MMD) statistic for measuring the distance between two distributions given finitely-many multivariate samples. When the distributions are locally low-dimensional, the proposed…

机器学习 · 统计学 2018-09-03 Xiuyuan Cheng , Alexander Cloninger , Ronald R. Coifman

We develop a novel framework for sparse multiscale kernel approximation of large scattered data problems based on a samplet representation. Samplets form a multiresolution analysis of localized discrete signed measures and enable…

数值分析 · 数学 2026-04-03 Sara Avesani , Gaia Fumagalli , Michael Multerer , Chiara Segala

Kernel estimation techniques, such as mean shift, suffer from one major drawback: the kernel bandwidth selection. The bandwidth can be fixed for all the data set or can vary at each points. Automatic bandwidth selection becomes a real…

计算机视觉与模式识别 · 计算机科学 2011-11-10 Aurelie Bugeau , Patrick Pérez

Count data with complex features arise in many disciplines, including ecology, agriculture, criminology, medicine, and public health. Zero inflation, spatial dependence, and non-equidispersion are common features in count data. There are…

统计方法学 · 统计学 2024-05-14 Bokgyeong Kang , John Hughes , Murali Haran

We study counterfactual distribution learning for high-dimensional outcomes whose counterfactual law may concentrate near lower-dimensional structure. Standard isotropic smoothing treats all ambient directions equally, leading to…

统计方法学 · 统计学 2026-05-26 Kwangho Kim

Kernel methods for deconvolution have attractive features, and prevail in the literature. However, they have disadvantages, which include the fact that they are usually suitable only for cases where the error distribution is infinitely…

统计理论 · 数学 2009-09-29 Peter Hall , Alexander Meister

We propose a new estimator for nonparametric binary choice models that does not impose a parametric structure on either the systematic function of covariates or the distribution of the error term. A key advantage of our approach is its…

计量经济学 · 经济学 2026-01-13 Guo Yan

Particle smoothing methods are used for inference of stochastic processes based on noisy observations. Typically, the estimation of the marginal posterior distribution given all observations is cumbersome and computational intensive. In…

机器学习 · 计算机科学 2017-05-24 H. -Ch. Ruiz , H. J. Kappen

To target challenges in differentiable optimization we analyze and propose strategies for derivatives of the Mat\'ern kernel with respect to the smoothness parameter. This problem is of high interest in Gaussian processes modelling due to…

数值分析 · 数学 2022-01-04 Oana Marin , Christopher Geoga , Michel Schanen

Non-parametric maximum likelihood estimation encompasses a group of classic methods to estimate distribution-associated functions from potentially censored and truncated data, with extensive applications in survival analysis. These methods,…

统计方法学 · 统计学 2021-08-05 Justin D. Tubbs , Lane Guolan Chen , Thuan Quoc Thach , Pak C. Sham

This paper introduces Discrete Markov Probabilistic Models (DMPMs), a novel discrete diffusion algorithm for discrete data generation. The algorithm operates in discrete bit space, where the noising process is a continuous-time Markov chain…

机器学习 · 统计学 2025-10-09 Le-Tuyet-Nhi Pham , Dario Shariatian , Antonio Ocello , Giovanni Conforti , Alain Durmus