نتایج جستجو برای: kernel density estimator

تعداد نتایج: 481295  

2005
Bert van Es Peter Spreij

Given a sample from a discretely observed compound Poisson process we consider estimation of the density of the jump sizes. We propose a kernel type nonparametric density estimator and study its asymptotic properties. Asymptotic expansions of the bias and variance of the estimator are given and pointwise weak consistency and asymptotic normality are established. We also derive the minimax conve...

Journal: :journal of sciences, islamic republic of iran 2013
m. ajami v. fakoor s. jomhoori

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 [10]. all simulations are drawn for different cases to demonstrate both, consistency and asymptotic normality and the method is illustrated by ...

1990
Leonard A. Stefanski

This paper considers estimation of a continuous bounded probability density when observations from the density are contaminated by additive measurement errors having a known distribution. Properties of the estimator obtained by deconvolving a kernel estimator of the observed data are investigated. When the kernel used is sufficiently smooth the deconvolved estimator is shown to be pointwise con...

2006
Taoufik Bouezmarni Jeroen V.K. Rombouts Luc Bauwens Song Chen Luc Devroye Bruno Remillard Jean-Marie Rolin Ingrid Van Keilegom

The Gaussian kernel density estimator is known to have substantial problems for bounded random variables with high density at the boundaries. For i.i.d. data several solutions have been put forward to solve this boundary problem. In this paper we propose the gamma kernel estimator as density estimator for positive data from a stationary α-mixing process. We derive the mean integrated squared er...

Journal: :Computational Statistics & Data Analysis 2010
Taoufik Bouezmarni Jeroen V. K. Rombouts

The Gaussian kernel density estimator is known to have substantial problems for bounded random variables with high density at the boundaries. For i.i.d. data several solutions have been put forward to solve this boundary problem. In this paper we propose the gamma kernel estimator as density estimator for positive data from a stationary α-mixing process. We derive the mean integrated squared er...

2007
Wolfgang Wefelmeyer W. WEFELMEYER

Convergence rates of kernel density estimators for stationary time series are well studied. For invertible linear processes, we construct a new density estimator that converges, in the supremum norm, at the better, parametric, rate n. Our estimator is a convolution of two different residual-based kernel estimators. We obtain in particular convergence rates for such residual-based kernel estimat...

2004
M. C. JONES

Abs t rac t . To estimate the quantile density function (the derivative of the quantile function) by kernel means, there are two alternative approaches. One is the derivative of the kernel quantile estimator, the other is essentially the reciprocal of the kernel density estimator. We give ways in which the former method has certain advantages over the latter. Various closely related smoothing i...

Journal: :Monthly Notices of the Royal Astronomical Society 2016

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