中文
相关论文

相关论文: Nonparametric Risk Assessment and Density Estimati…

200 篇论文

This paper addresses the problems of conditional variance estimation and confidence interval construction in nonparametric regression using dense networks with the Rectified Linear Unit (ReLU) activation function. We present a…

This paper proposes nonparametric kernel-smoothing estimation for panel data to examine the degree of heterogeneity across cross-sectional units. We first estimate the sample mean, autocovariances, and autocorrelations for each unit and…

计量经济学 · 经济学 2019-05-28 Ryo Okui , Takahide Yanagi

The mean residual life function is a key functional for a survival distribution. It has a practically useful interpretation as the expected remaining lifetime given survival up to a particular time point, and it also characterizes the…

统计方法学 · 统计学 2018-10-11 Valerie Poynor , Athanasios Kottas

In this paper we analyze several strategies for the estimation of the roughness parameter of the $\mathcal G_I^0$ distribution. It has been shown that this distribution is able to characterize a large number of targets in monopolarized SAR…

信息论 · 计算机科学 2016-11-17 Juliana Gambini , Julia Cassetti , María Magdalena Lucini , Alejandro C. Frery

In this paper, we consider the problem of estimating a conditional density in moderately large dimensions. Much more informative than regression functions, conditional densities are of main interest in recent methods, particularly in the…

统计方法学 · 统计学 2018-01-22 Minh-Lien Jeanne Nguyen

Gaussian process regression has proven very powerful in statistics, machine learning and inverse problems. A crucial aspect of the success of this methodology, in a wide range of applications to complex and real-world problems, is…

统计理论 · 数学 2021-03-18 Yifan Chen , Houman Owhadi , Andrew M. Stuart

This paper investigates the post-hoc calibration of confidence for "exploratory" machine learning classification problems. The difficulty in these problems stems from the continuing desire to push the boundaries of which categories have…

Topological data analysis offers a rich source of valuable information to study vision problems. Yet, so far we lack a theoretically sound connection to popular kernel-based learning techniques, such as kernel SVMs or kernel PCA. In this…

机器学习 · 统计学 2014-12-24 Jan Reininghaus , Stefan Huber , Ulrich Bauer , Roland Kwitt

The mean field variational Bayes (VB) algorithm implemented in Stan is relatively fast and efficient, making it feasible to produce model-estimated official statistics on a rapid timeline. Yet, while consistent point estimates of parameters…

统计方法学 · 统计学 2024-07-08 Terrance D. Savitsky , Julie Gershunskaya

We study generalized bootstrap confidence regions for the mean of a random vector whose coordinates have an unknown dependency structure. The random vector is supposed to be either Gaussian or to have a symmetric and bounded distribution.…

统计理论 · 数学 2010-07-02 Sylvain Arlot , Gilles Blanchard , Etienne Roquain

We consider nonlinear inverse problems described by operator equations in Banach spaces. Assuming conditional stability of the inverse problem, that is, assuming that stability holds on a closed, convex subset of the domain of the operator,…

数值分析 · 数学 2012-06-19 Maarten V. de Hoop , Lingyun Qiu , Otmar Scherzer

We propose statistical inferential procedures for panel data models with interactive fixed effects in a kernel ridge regression framework.Compared with traditional sieve methods, our method is automatic in the sense that it does not require…

统计理论 · 数学 2017-03-10 Shunan Zhao , Ruiqi Liu , Zuofeng Shang

We introduce NeuralSurv, the first deep survival model to incorporate Bayesian uncertainty quantification. Our non-parametric, architecture-agnostic framework captures time-varying covariate-risk relationships in continuous time via a novel…

机器学习 · 计算机科学 2025-12-17 Mélodie Monod , Alessandro Micheli , Samir Bhatt

This paper introduces the kernel mixture network, a new method for nonparametric estimation of conditional probability densities using neural networks. We model arbitrarily complex conditional densities as linear combinations of a family of…

机器学习 · 统计学 2017-05-22 Luca Ambrogioni , Umut Güçlü , Marcel A. J. van Gerven , Eric Maris

Estimating the mixing density of a latent mixture model is an important task in signal processing. Nonparametric maximum likelihood estimation is one popular approach to this problem. If the latent variable distribution is assumed to be…

统计方法学 · 统计学 2024-03-01 Shijie Wang , Minsuk Shin , Ray Bai

We study the estimation problem of distribution-on-distribution regression, where both predictors and responses are probability measures. Existing approaches typically rely on a global optimal transport map or tangent-space linearization,…

机器学习 · 统计学 2025-11-17 Inga Girshfeld , Xiaohui Chen

Persistence diagrams play a fundamental role in Topological Data Analysis where they are used as topological descriptors of filtrations built on top of data. They consist in discrete multisets of points in the plane $\mathbb{R}^2$ that can…

计算几何 · 计算机科学 2019-03-25 Frédéric Chazal , Vincent Divol

In Bayesian inference, we seek to compute information about random variables such as moments or quantiles on the basis of {available data} and prior information. When the distribution of random variables is {intractable}, Monte Carlo (MC)…

统计理论 · 数学 2021-04-06 Alec Koppel , Amrit Singh Bedi , Brian M. Sadler , Victor Elvira

For a larger set of predictions of several differently trained machine learning models, known as bagging predictors, the mean of all predictions is taken by default. Nevertheless, this proceeding can deviate from the actual ground truth in…

机器学习 · 计算机科学 2026-04-07 Philipp Seitz , Jan Schmitt , Andreas Schiffler

Given i.i.d samples from some unknown continuous density on hyper-rectangle $[0, 1]^d$, we attempt to learn a piecewise constant function that approximates this underlying density non-parametrically. Our density estimate is defined on a…

机器学习 · 统计学 2015-09-24 Kun Yang , Hao Su , Wing Hung Wang