Results 71 to 80 of about 19,957,777 (200)

"Stochastic Volatility Model with Leverage and Asymmetrically Heavy-Tailed Error Using GH Skew Student's t-Distribution Models" [PDF]

open access: yes
Bayesian analysis of a stochastic volatility model with a generalized hyperbolic (GH) skew Student's t-error distribution is described where we first consider an asymmetric heavy-tailed error and leverage effects.
Jouchi Nakajima, Yasuhiro Omori
core  

Inference on heavy tails from dependent data [PDF]

open access: yes, 2002
The author deals with problems of tail index and extreme quantile estimation from a sample of dependent random variables. Consistency and asymptotic normality of the corresponding estimators are established under mild mixing conditions. The accuracy of estimation is shown to be of the same order as if the data were independent.
openaire   +1 more source

Data for heavy-tailed phase-type distributions.

open access: yes, 2021
<p>Datasets for heavy-tailed phase-type analyses.</p ...
Martin Bladt, Jorge Yslas
core   +1 more source

Time-Varying Graph Learning for Data With Heavy-Tailed Distribution

open access: yesIEEE Transactions on Signal Processing
Graph models provide efficient tools to capture the underlying structure of data defined over networks. Many real-world network topologies are subject to change over time. Learning to model the dynamic interactions between entities in such networks is known as time-varying graph learning.
Amirhossein Javaheri   +3 more
openaire   +3 more sources

Sparse Robust Weighted Expectile Screening for Ultra-High-Dimensional Data

open access: yesAxioms
This paper investigates robust feature screening for ultra-high dimensional data in the presence of outliers and heterogeneity. Considering the susceptibility of likelihood methods to outliers, we propose a Sparse Robust Weighted Expectile Regression ...
Xianjun Wu, Pingping Han, Mingqiu Wang
doaj   +1 more source

A new and generalized family of heavy-tailed-Topp-Leone-type II exponentiated half logistic-G distribution with applications

open access: yesScientific African
We develop a novel family of distributions named heavy-tailed Topp-Leone-type II exponentiated half logistic distribution. Several mathematical properties including linear representation, Rényi entropy, quantile function, probability weighted moments ...
Oarabile Lekhane   +3 more
doaj   +1 more source

The generalized double Lomax distribution with applications

open access: yesStatistica, 2016
A new probability distribution from the polynomial family has been proposed for modeling heavy-tailed data that are continuous on the whole real line. we have derived some general properties of this distribution and applied it on several data sets of U.S
Abu Seif Mohammad Fares   +1 more
doaj   +1 more source

Enhancing Airport Resource Efficiency Through Statistical Modeling of Heavy-Tailed Service Durations: A Case Study on Potable Water Trucks

open access: yesAerospace
In airport operations management, accurately estimating the service durations of ground support equipment such as Potable Water Trucks (PWTs) is essential for improving resource allocation efficiency and ensuring timely aircraft turnaround.
Changcheng Li   +4 more
doaj   +1 more source

Do healthcare services behave as complex systems? Analysis of patterns of attendance and implications for service delivery

open access: yesBMC Medicine, 2018
Background The science of complex systems has been proposed as a way of understanding health services and the demand for them, but there is little quantitative evidence to support this.
Christopher Burton   +3 more
doaj   +1 more source

Transformation kernel density estimation of actuarial loss functions [PDF]

open access: yes
A transformation kernel density estimator that is suitable for heavy-tailed distributions is discussed. Using a truncated Beta transformation, the choice of the bandwidth parameter becomes straightforward.
Montserrat Guillen (Universitat de Barcelona)   +2 more
core  

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