A review of more than one hundred Pareto-tail index estimators

I Fedotenkov - Statistica, 2020 - rivista-statistica.unibo.it
Heavy-tailed distributions are often encountered in economics, finance, biology,
telecommunications, geology, etc. The heaviness of a tail is measured by a tail index …

A simple generalisation of the Hill estimator

MF Brilhante, MI Gomes, D Pestana - Computational Statistics & Data …, 2013 - Elsevier
The classical Hill estimator of a positive extreme value index (EVI) can be regarded as the
logarithm of the geometric mean, or equivalently the logarithm of the mean of order p= 0, of a …

Mean-of-order p reduced-bias extreme value index estimation under a third-order framework

F Caeiro, MI Gomes, J Beirlant, T de Wet - Extremes, 2016 - Springer
Reduced-bias versions of a very simple generalization of the 'classical'Hill estimator of a
positive extreme value index (EVI) are put forward. The Hill estimator can be regarded as the …

New reduced-bias estimators of a positive extreme value index

MI Gomes, MF Brilhante, D Pestana - Communications in Statistics …, 2016 - Taylor & Francis
Noting that the classical Hill estimator of a positive extreme value index (EVI) is the logarithm
of the mean of order-0 of a set of certain statistics, a more general class of EVI-estimators …

[PDF][PDF] An Efficient Naive Generalisation of the Hill Estimator: Discrepancy between Asymptotic and Finite Sample Behaviour

H Penalva, F Caeiro, MI Gomes, MM Neves - Notas e Comunicaçoes …, 2016 - ceaul.org
The Lehmer mean of order p of k positive numbers (a1,..., ak) is defined by∑ ki= 1 api/∑ ki=
1 ap− 1 i, generalizing both the arithmetic mean (p= 1) and the harmonic mean (p= 0). Given …

[PDF][PDF] Efficiency of partially reduced-bias mean-of-order-p versus minimum-variance reduced-bias extreme value index estimation

MI Gomes, F Caeiro - Proceedings of COMPSTAT, 2014 - docentes.fct.unl.pt
A recent class of estimators of a positive extreme value index (EVI), related to a mean-of-
order-p (MOP) class of EVI-estimators is enlarged and studied for finite samples through a …

Mean-of-order-p location-invariant extreme value index estimation

MI Gomes, L Henriques-Rodrigues… - REVSTAT-Statistical …, 2016 - revstat.ine.pt
A simple generalisation of the classical Hill estimator of a positive extreme value index (EVI)
has been recently introduced in the literature. Indeed, the Hill estimator can be regarded as …

Non-regular Frameworks and the Mean-of-Order p Extreme Value Index Estimation

MI Gomes, L Henriques-Rodrigues… - Journal of Statistical Theory …, 2022 - Springer
Most of the estimators of parameters of rare and large events, among which we distinguish
the extreme value index (EVI) for maxima, one of the primary parameters in statistical …

A Mean-of-Order- Class of Value-at-Risk Estimators

MI Gomes, MF Brilhante, D Pestana - … Practice of Risk Assessment: ICRA 5 …, 2015 - Springer
The main objective of statistics of univariate extremes lies in the estimation of quantities
related to extreme events. In many areas of application, like finance, insurance and …

A new partially reduced-bias mean-of-order p class of extreme value index estimators

MI Gomes, MF Brilhante, F Caeiro, D Pestana - Computational Statistics & …, 2015 - Elsevier
A class of partially reduced-bias estimators of a positive extreme value index (EVI), related to
a mean-of-order-p class of EVI-estimators, is introduced and studied both asymptotically and …