Results 41 to 50 of about 239,604 (162)

Using Shrinkage Estimators to Reduce Bias and MSE in Estimation of Heavy Tails

open access: yesRevstat Statistical Journal, 2019
Bias reduction in tail estimation has received considerable interest in extreme value analysis. Estimation methods that minimize the bias while keeping the mean squared error (MSE) under control, are especially useful when applying classical methods ...
Jan Beirlant   +2 more
doaj   +1 more source

On Max-Semistable Laws and Extremes for Dynamical Systems

open access: yesEntropy, 2021
Suppose (f,X,μ) is a measure preserving dynamical system and ϕ:X→R a measurable observable. Let Xi=ϕ∘fi−1 denote the time series of observations on the system, and consider the maxima process Mn:=max{X1,…,Xn}.
Mark P. Holland, Alef E. Sterk
doaj   +1 more source

On Extreme Value Index Estimation under Random Censoring [PDF]

open access: yesAfrican Journal of Applied Statistics, 2018
Extreme value analysis in the presence of censoring is receiving much attention as it has applications in many disciplines, including survival and reliability studies. Estimation of extreme value index (EVI) is of primary importance as it is a critical parameter needed in estimating extreme events such as quantiles and exceedance probabilities. In this
MINKAH, Richard   +2 more
openaire   +3 more sources

A Note on Second Order Conditions in Extreme Value Theory: Linking General and Heavy Tail Conditions

open access: yesRevstat Statistical Journal, 2007
Second order conditions ruling the rate of convergence in any first order condition involving regular variation and assuring a unified extreme value limiting distribution function for the sequence of maximum values, linearly normalized, have appeared in
M. Isabel Fraga Alves   +3 more
doaj   +1 more source

Heuristic Tools for the Estimation of The Extremal Index

open access: yesRevstat Statistical Journal, 2018
Clustering of exceedances of a critical level is a phenomenon that concerns risk managers in many areas. The extremal index θ measures the propensity of the large observations in a dataset to cluster.
Marta Ferreira
doaj   +1 more source

Ability of the GRAPES Ensemble Forecast Product to Forecast Extreme Temperatures over the Tibetan Plateau

open access: yesAtmosphere, 2023
Due to climate change, extreme temperature events are receiving increased attention. Based on the climate state deviation and threat score (TS), the ability of the Global/Regional Assimilation and Prediction System (GRAPES) ensemble model to forecast ...
Ruixin Wang   +3 more
doaj   +1 more source

Swimming performance index based on extreme value theory [PDF]

open access: yesInternational Journal of Sports Science & Coaching, 2018
The International Swimming Federation has developed a points system that allows comparisons of results between different events. Such system is important for several reasons, since it is used as a criterion to rank swimmers in awards and selection procedures of national teams.
Daniel T Gomes   +1 more
openaire   +1 more source

PROPERTIES OF SELECTED SIGNIFICANCE TESTS FOR EXTREME VALUE INDEX

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2014
The paper presents two tests verifying the hypothesis about the shape parameter of the generalized distribution of maximum statistic. It is called the extreme value index.
Dorota Pekasiewicz
doaj  

Extremal Trees for Logarithmic VDB Topological Indices

open access: yesAxioms
Vertex-degree-based (VDB) topological indices have been applied in the study of molecular structures and chemical properties. At present, the exponential VDB index has been studied extensively.
Zhenhua Su, Hanyuan Deng
doaj   +1 more source

Extreme Value Theory in Application to Delivery Delays

open access: yesEntropy, 2021
This paper uses the Extreme Value Theory (EVT) to model the rare events that appear as delivery delays in road transport. Transport delivery delays occur stochastically.
Marcin Fałdziński   +2 more
doaj   +1 more source

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