Results 61 to 70 of about 30,679 (211)

Gumbel-Geometric Distribution: Properties and Applications

open access: yesGazi University Journal of Science, 2020
A three-parameter generalization of the Gumbel distribution, which we call Gumbel-geometric distribution, is defined and investigated. The shape of the density and hazard function is examined and discussed. Explicit expressions for the moment generating function, the characteristics function and the rth order statistic are obtained. Other properties of
Bamidele OSENİ, Hassan OKASHA
openaire   +3 more sources

Subuniformity of harmonic mean p$$ p $$‐values

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We obtain several inequalities on the generalized means of dependent p$$ p $$‐values. In particular, the weighted harmonic mean of p$$ p $$‐values is strictly subuniform under several dependence assumptions of p$$ p $$‐values, including independence, negative upper orthant dependence, the class of extremal mixture copulas, and some Clayton ...
Yuyu Chen   +3 more
wiley   +1 more source

INDEXES TO MEASURE DEPENDENCE BETWEEN CLINICAL DIAGNOSTIC TESTS: A COMPARATIVE STUDY INDICES PARA MEDIR DEPENDENCIA ENTRE PRUEBAS PARA DIAGNÓSTICO CLÍNICO: UN ESTUDIO COMPARATIVO

open access: yesRevista Colombiana de Estadística, 2011
In many practical situations, clinical diagnostic procedures include two or more biological traits whose outcomes are expressed on a continuous scale and are then dichotomized using a cut point.
Tovar José Rafael, Achcar Jorge Alberto
doaj  

1/f Noise and Extreme Value Statistics

open access: yes, 2001
We study the finite-size scaling of the roughness of signals in systems displaying Gaussian 1/f power spectra. It is found that one of the extreme value distributions (Gumbel distribution) emerges as the scaling function when the boundary conditions are ...
A. V. Yakimov   +31 more
core   +1 more source

Asymptotic independence in more than two dimensions and its implications on risk management

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In extreme value theory, the presence of asymptotic independence signifies that joint extreme events across multiple variables are unlikely. Although well understood in a bivariate context, the concept remains relatively unexplored when addressing the nuances of simultaneous occurrence of extremes in higher dimensions.
Bikramjit Das, Vicky Fasen‐Hartmann
wiley   +1 more source

Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study

open access: yesRevista Colombiana de Estadística, 2011
In many practical situations, clinical diagnostic procedures include two or more biological traits whose outcomes are expressed on a continuous scale and are then dichotomized using a cut point.
JOSÉ RAFAEL TOVAR, JORGE ALBERTO ACHCAR
doaj  

The Gumbel- Pareto Distribution: Theory and Applications

open access: yesمجلة بغداد للعلوم, 2019
In this paper, for the first time we introduce a new four-parameter model called the Gumbel- Pareto distribution by using the T-X method. We obtain some of its mathematical properties. Some structural properties of the new distribution are studied.
Saad et al.
doaj   +1 more source

Seismic Hazard Assessment For Peninsular Malaysia Using Gumbel Distribution Method [PDF]

open access: yes, 2005
This Paper Presents The Preliminary Study On Seismic Hazard Assessment Which Involved Developing Macrozonation Map For Two Hazard Levels, I.E. 10% And 2% Probabilities Of Exceedance In 50 Years For Bedrock Of Peninsular Malaysia.
Adnan, Azlan   +3 more
core  

Galaxy distribution and extreme value statistics

open access: yes, 2009
We consider the conditional galaxy density around each galaxy, and study its fluctuations in the newest samples of the Sloan Digital Sky Survey Data Release 7.
Abazajian K.   +16 more
core   +1 more source

Waves of Uncertainty: Crude Oil Under Geopolitical, Economic, and ESG Turbulence

open access: yesEnergy Science &Engineering, EarlyView.
Dynamic copula and wavelet coherence reveal that geopolitical, economic, and sustainability uncertainties significantly shape crude oil price co‐movements. Long‐term coherence, especially post‐2015, highlights the growing role of ESG risks alongside geopolitical shocks and economic crises in global energy risk transmission.
Sana Braiek   +3 more
wiley   +1 more source

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