Results 11 to 20 of about 252 (167)

Trimmed means for functional data [PDF]

open access: yes, 2001
Data depth, functional data, trimmed means estimates, 62G07, 62G05,
Fraiman, Ricardo   +3 more
core   +1 more source

Bootstrap variance estimation for Nadaraya quantile estimator [PDF]

open access: yes, 2009
Nadaraya quantile estimator, Order-calibration, Smoothed bootstrap, 62G05, 62G09, 62G30,
Cheung, KY   +5 more
core   +1 more source

Asymptotic normality of the relative error regression function estimator for censored and time series data

open access: yesDependence Modeling, 2021
Consider a survival time study, where a sequence of possibly censored failure times is observed with d-dimensional covariate The main goal of this article is to establish the asymptotic normality of the kernel estimator of the relative error regression ...
Bouhadjera Feriel, Saïd Elias Ould
doaj   +1 more source

Large deviations for exchangeable observations with applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 55, Page 2947-2958, 2004., 2004
We first prove some large deviation results for a mixture of i.i.d. random variables. Compared with most of the known results in the literature, our results are built on relaxing some restrictive conditions that may not be easy to be checked in certain typical cases.
Jinwen Chen
wiley   +1 more source

All models are wrong, but which are useful? Comparing parametric and nonparametric estimation of causal effects in finite samples

open access: yesJournal of Causal Inference, 2023
There is a long-standing debate in the statistical, epidemiological, and econometric fields as to whether nonparametric estimation that uses machine learning in model fitting confers any meaningful advantage over simpler, parametric approaches in finite ...
Rudolph Kara E.   +4 more
doaj   +1 more source

Strong Consistency of Estimators for Heteroscedastic Partly Linear Regression Model under Dependent Samples

open access: yesInternational Journal of Stochastic Analysis, Volume 15, Issue 3, Page 207-219, 2002., 2002
In this paper we are concerned with the heteroscedastic regression model yi = xiβ + g(ti) + σiei, 1 ≤ i ≤ n under correlated errors ei, where it is assumed that σi2=f(ui), the design points (xi, ti, ui) are known and nonrandom, and g and f are unknown functions. The interest lies in the slope parameter β.
Han-Ying Liang, Bing-Yi Jing
wiley   +1 more source

On the asymptotic covariance of the multivariate empirical copula process

open access: yesDependence Modeling, 2019
Genest and Segers (2010) gave conditions under which the empirical copula process associated with a random sample from a bivariate continuous distribution has a smaller asymptotic covariance than the standard empirical process based on a random sample ...
Genest Christian   +2 more
doaj   +1 more source

Nonparametric density estimators based on nonstationary absolutely regular random sequences

open access: yesInternational Journal of Stochastic Analysis, Volume 9, Issue 3, Page 233-254, 1996., 1995
In this paper, the central limit theorems for the density estimator and for the integrated square error are proved for the case when the underlying sequence of random variables is nonstationary. Applications to Markov processes and ARMA processes are provided.
Michel Harel, Madan L. Puri
wiley   +1 more source

A note on efficient minimum cost adjustment sets in causal graphical models

open access: yesJournal of Causal Inference, 2022
We study the selection of adjustment sets for estimating the interventional mean under an individualized treatment rule. We assume a non-parametric causal graphical model with, possibly, hidden variables and at least one adjustment set composed of ...
Smucler Ezequiel, Rotnitzky Andrea
doaj   +1 more source

A new simulation estimator of system reliability

open access: yesInternational Journal of Stochastic Analysis, Volume 7, Issue 3, Page 331-336, 1994., 1993
A basic identity is proven and applied to obtain new simulation estimators concerning (a) system reliability, (b) a multi‐valued system. We show that the variance of this new estimator is often of the order α2 when the usual raw estimator has variance of the order α and α is small.
Sheldon M. Ross
wiley   +1 more source

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