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In this paper, we study the behavior of a kernel estimator of the regression function in the right censored model with $\alpha$-mixing data . The uniform strong consistency over a real compact set of the estimate is established along with a…

统计理论 · 数学 2008-02-21 Zohra Guessoum , Elias Ould-Saïd

Let $ (T_i)_i$ be a sequence of independent identically distributed (i.i.d.) random variables (r.v.) of interest distributed as $ T$ and $(X_i)_i$ be a corresponding vector of covariates taking values on $ \mathbb{R}^d$. In censorship…

统计理论 · 数学 2019-01-29 Bouhadjera Feriel , Ould Saïd , Mohamed Remita

Consider a random vector (X',Y)', where X is d-dimensional and Y is one-dimensional. We assume that Y is subject to random right censoring. The aim of this paper is twofold. First, we propose a new estimator of the joint distribution of…

统计理论 · 数学 2013-09-18 Olivier Lopez , Valentin Patilea , Ingrid Van Keilegom

We introduce and study a local linear nonparametric regression estimator for censorship model. The main goal of this paper is, to establish the uniform almost sure consistency result with rate over a compact set for the new estimate. To…

统计理论 · 数学 2020-04-07 Feriel Bouhadjera , Elias Saïd , Riad Remita

We develop a unified approach for classification and regression support vector machines for data subject to right censoring. We provide finite sample bounds on the generalization error of the algorithm, prove risk consistency for a wide…

机器学习 · 统计学 2013-01-15 Yair Goldberg , Michael R. Kosorok

The nonparametric estimators built by minimizing the mean squared relative error are gaining in popularity for their robustness in the presence of outliers in comparison to the Nadaraya Watson estimators. In this paper we build a relative…

统计理论 · 数学 2023-11-21 Adel Boucetta , Zohra Guessoum , Elias Ould-Said

In this paper, we establish weak consistency and asymptotic normality of an M-estimator of the regression function for left truncated and right censored (LTRC) model, where it is assumed that the observations form a stationary alpha-mixing…

统计理论 · 数学 2023-05-09 Hassiba Benseradj , Zohra Guessoum

This paper considers inference in a linear regression model with random right censoring and outliers. The number of outliers can grow with the sample size while their proportion goes to zero. The model is semiparametric and we make only…

统计理论 · 数学 2021-10-06 Jad Beyhum , Ingrid Van Keilegom

We propose a censored quantile regression estimator motivated by unbiased estimating equations. Under the usual conditional independence assumption of the survival time and the censoring time given the covariates, we show that the proposed…

统计理论 · 数学 2013-02-04 Chenlei Leng , Xingwei Tong

In this paper, we built a new nonparametric regression estimator with the local linear method by using the mean squared relative error as a loss function when the data are subject to random right censoring. We establish the uniform almost…

统计理论 · 数学 2020-04-07 Feriel Bouhadjera , Elias Saïd

The present paper deals with a nonparametric M-estimation for right censored regression model with stationary ergodic data. Defined as an implicit function, a kernel type estimator of a family of robust regression is considered when the…

统计方法学 · 统计学 2016-05-03 Mohamed Chaouch , Naamane Laib , Elias Ould-Said

It has been recently shown that nonparametric estimators of the additive regression function could be obtained in the presence of right censoring by coupling the marginal integration method with initial kernel-type Inverse Probability of…

统计理论 · 数学 2009-09-29 Mohammed Debbarh , Vivian Viallon

In this paper we study some asymptotic properties of the kernel conditional quantile estimator with randomly left-truncated data which exhibit some kind of dependence. We extend the result obtained by Lemdani, Ould-Sa\"id and Poulin [16] in…

统计理论 · 数学 2008-10-08 Elias Ould-Saïd , Djabrane Yahia , Abdelhakim Necir

Distributional regression aims to find the best candidate in a given parametric family of conditional distributions to model a given dataset. As each candidate in the distribution family can be identified by the corresponding distribution…

统计理论 · 数学 2026-05-18 Gitte Kremling , Gerhard Dikta

This paper, investigates the conditional quantile estimation of a scalar random response and a functional random covariate (i.e. valued in some infinite-dimensional space) whenever {\it functional stationary ergodic data with random…

统计理论 · 数学 2013-04-17 Mohamed Chaouch , Salah Khardani

Since survival data occur over time, often important covariates that we wish to consider also change over time. Such covariates are referred as time-dependent covariates. Quantile regression offers flexible modeling of survival data by…

统计方法学 · 统计学 2014-05-01 Malka Gorfine , Yair Goldberg , Yaacov Ritov

In this paper, we study a novel approach for the estimation of quantiles when facing potential right censoring of the responses. Contrary to the existing literature on the subject, the adopted strategy of this paper is to tackle censoring…

统计方法学 · 统计学 2017-03-24 Mickaël De Backer , Anouar El Ghouch , Ingrid Van Keilegom

We consider linear regression model estimation where the covariate of interest is randomly censored. Under a non-informative censoring mechanism, one may obtain valid estimates by deleting censored observations. However, this comes at a…

应用统计 · 统计学 2017-10-24 Folefac Atem , Roland A. Matsouaka

Despite its drawbacks, the complete case analysis is commonly used in regression models with missing covariates. Understanding when implementing complete cases will lead to consistent parameter estimation is vital before use. Here, our aim…

统计方法学 · 统计学 2024-08-21 Marissa C. Ashner , Tanya P. Garcia

We adress the problem of consistency of the $k$-nearest neighbors kernel estimators of the density and the regression function in the multivariate case. We get the rates of strong uniform consistency on the whole space $\mathbb{R}^p$ for…

统计理论 · 数学 2024-08-26 Luran Bengono Mintogo , Emmanuel de Dieu Nkou , Guy Martial Nkiet
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