Results 41 to 50 of about 6,008,196 (338)

Maximum likelihood estimation for Gaussian process with nonlinear drift

open access: yesNonlinear Analysis, 2018
We investigate the regression model Xt = θG(t) + Bt, where θ is an unknown parameter, G is a known nonrandom function, and B is a centered Gaussian process.
Yuliya Mishura   +2 more
doaj   +1 more source

Variable Selection Using Nonlocal Priors in High-Dimensional Generalized Linear Models With Application to fMRI Data Analysis

open access: yesEntropy, 2020
High-dimensional variable selection is an important research topic in modern statistics. While methods using nonlocal priors have been thoroughly studied for variable selection in linear regression, the crucial high-dimensional model selection properties
Xuan Cao, Kyoungjae Lee
doaj   +1 more source

Parameter estimation for fractional mixed fractional Brownian motion based on discrete observations

open access: yesModern Stochastics: Theory and Applications, 2023
The object of investigation is the mixed fractional Brownian motion of the form ${X_{t}}=\kappa {B_{t}^{{H_{1}}}}+\sigma {B_{t}^{{H_{2}}}}$, driven by two independent fractional Brownian motions ${B_{1}^{H}}$ and ${B_{2}^{H}}$ with Hurst parameters ${H_ ...
Kostiantyn Ralchenko, Mykyta Yakovliev
doaj   +1 more source

Strong consistency of a kernel-based rule for spatially dependent data [PDF]

open access: yesArab Journal of Mathematical Sciences, 2020
We consider the kernel-based classifier proposed by Younso (2017). This nonparametric classifier allows for the classification of missing spatially dependent data. The weak consistency of the classifier has been studied by Younso (2017).
Ahmad Younso, Ziad Kanaya, Nour Azhari
doaj   +1 more source

On strong consistency of the variance estimator [PDF]

open access: yesProceedings of the 19th conference on Winter simulation - WSC '87, 1987
One way to construct a confidence interval for the mean constant of a stochastic process, is via consistent estimation of another parameter of the process, namely, the time-average variance constant. In this paper, we discuss strong consistency of the variance estimator for several methods of steady-state output analysis.
openaire   +1 more source

Strong Consistency of Incomplete Functional Percentile Regression

open access: yesAxioms
This paper analyzes the co-fluctuation between a scalar response random variable and a curve regressor using quantile regression. We focus on the situation wherein the output variable is observed with random missing.
Mohammed B. Alamari   +3 more
doaj   +1 more source

Some Asymptotic Results of Kernel Density Estimator in Length-Biased Sampling [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2013
In this paper, we prove the strong uniform consistency and asymptotic normality of the kernel density estimator proposed by Jones [12] for length-biased data.The approach is based on the invariance principle for the empirical processes proved by Horváth [
M. Ajami, V. Fakoor, S. Jomhoori
doaj  

Asymptotic Properties of Parameter Estimators in Fractional Vasicek Model

open access: yesLithuanian Journal of Statistics, 2016
We consider the fractional Vasicek model of the form dXt = (α-βXt)dt + γdBHt, driven by fractional Brownian motion BH with Hurst parameter H ∈ (0,1). We construct three estimators for an unknown parameter θ=(α,β) and prove their strong consistency.
Stanislav Lohvinenko   +2 more
doaj   +1 more source

Quasi-maximum likelihood estimator of Laplace (1, 1) for GARCH models

open access: yesOpen Mathematics, 2017
This paper studies the quasi-maximum likelihood estimator (QMLE) for the generalized autoregressive conditional heteroscedastic (GARCH) model based on the Laplace (1,1) residuals.
Xuan Haiyan   +3 more
doaj   +1 more source

Strong consistency of multivariate spectral variance estimators in Markov chain Monte Carlo

open access: yesBernoulli, 2015
Markov chain Monte Carlo (MCMC) algorithms are used to estimate features of interest of a distribution. The Monte Carlo error in estimation has an asymptotic normal distribution whose multivariate nature has so far been ignored in the MCMC community.
Dootika Vats   +2 more
semanticscholar   +1 more source

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