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On asymptotic normality of the hill estimator [PDF]

open access: yesStochastic Models, 1998
For iid observations from a common distribution Fwith regularly varying tail , a popular estimator of α is the Hill estimator. Regular variation of the distribution tail is equivalent to weak consistency of the Hill estimator in a manner made precise in Mason (1982) but necessary and sufficient conditions for asymptotic normality of this estimator are ...
Sidney Resnick
exaly   +4 more sources

Penultimate Approximation for Hill's Estimator [PDF]

open access: yesScandinavian Journal of Statistics, 2001
We prove that the probability distribution of Hill's estimator can be better approximated by a series of appropriate gamma distributions than by the limiting normal distribution.
S. Cheng, L.F.M. de Haan
exaly   +5 more sources

Inference about the Tail of a Distribution: Improvementon the Hill Estimator [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
The Hill estimator is often used to infer the power behavior in tails of experimental distribution functions. This estimator is known to produce bad results in certain situations which have lead to the so-called Hill horror plots.
Jean Nuyts
doaj   +4 more sources

Asymptotic Normality of Hill Estimator for Truncated Data

open access: yesElectronic Journal of Probability, 2011
The problem of estimating the tail index from truncated data is addressed in Chakrabarty and Samorodnitsky (2009). In that paper, a sample based (and hence random) choice of k is suggested, and it is shown that the choice leads to a consistent estimator of the inverse of the tail index.
Arijit Chakrabarty
exaly   +5 more sources

Normalising Transformation of the Hill Estimator

open access: yesAustralian and New Zealand Journal of Statistics
ABSTRACTWe present a normalising transformation of the Hill estimator to improve the convergence rate in finite‐sample performance. Our proposal for the normalising transformation is based on the higher order asymptotic expansion of the Hill estimator. The transformation is automatic and simple in computation. The resulting transformation theoretically
Yan Liu
exaly   +2 more sources

Distributed Trimmed Hill Estimator

open access: yesJournal of Applied Mathematics and Physics, 2023
exaly   +2 more sources

Smoothing the Hill Estimator [PDF]

open access: yesAdvances in Applied Probability, 1997
For sequences of i.i.d. random variables whose common tail 1 –Fis regularly varying at infinity wtih an unknown index –α< 0, it is well known that the Hill estimator is consistent for α–1and usually asymptotically normally distributed. However, because the Hill estimator is a function ofk = k(n), the number of upper order statistics used and which ...
Resnick, Sidney, Stărică, Cătălin
openaire   +2 more sources

A class of weighted Hill estimators

open access: yesComputational and Mathematical Methods, 2021
In Statistics of Extremes, the estimation of the extreme value index is an essential requirement for further tail inference. In this work, we deal with the estimation of a strictly positive extreme value index from a model with a Pareto-type right tail.
Frederico Caeiro   +2 more
openaire   +2 more sources

Estimating and comparing microbial diversity in the presence of sequencing errors [PDF]

open access: yesPeerJ, 2016
Estimating and comparing microbial diversity are statistically challenging due to limited sampling and possible sequencing errors for low-frequency counts, producing spurious singletons. The inflated singleton count seriously affects statistical analysis
Chun-Huo Chiu, Anne Chao
doaj   +2 more sources

Weak properties and robustness of t-Hill estimators [PDF]

open access: yesExtremes, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jordanova, Pavlina   +7 more
openaire   +8 more sources

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