Results 21 to 30 of about 2,212,997 (349)

Heavy Tail and Long-Range Dependence for Skewed Time Series Prediction Based on a Fractional Weibull Process

open access: yesFractal and Fractional, 2023
In this paper, a fractional Weibull process is utilized in a predictive stochastic differential equation model to allow for skewness and heavy-tailed characteristics.
Wanqing Song, Dongdong Chen, Enrico Zio
doaj   +1 more source

Heavy loads and heavy tails

open access: yesIndagationes Mathematicae, 2023
The present paper is concerned with the stationary workload of queues with heavy-tailed (regularly varying) characteristics. We adopt a transform perspective to illuminate a close connection between the tail asymptotics and heavy-traffic limit in infinite-variance scenarios. This serves as a tribute to some of the pioneering results of J.W.
openaire   +3 more sources

MODEL OF THE DIFFUSION PROCESS WITH HEAVY TAILS IN THE DISTRIBUTION [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2017
A generator of stable random variables is developed.
Zakharov I. S.
doaj   +1 more source

Heavy‐tailed densities [PDF]

open access: yesWIREs Computational Statistics, 2012
AbstractThe concept of heavy‐ or long‐tailed densities (or distributions) has attracted much well‐deserved attention in the literature. A quick search in Google using the keywords long‐tailed statistics retrieves almost 12 million items. The concept has become a pillar of the theory of extremes, and through its connection with outlier‐prone ...
openaire   +3 more sources

On the Identification of the Riskiest Directional Components from Multivariate Heavy-Tailed Data

open access: yesRisks, 2023
In univariate data, there exist standard procedures for identifying dominating features that produce the largest number of observations. However, in the multivariate setting, the situation is quite different.
Miriam Hägele, Jaakko Lehtomaa
doaj   +1 more source

A note on the asymptotics for the randomly stopped weighted sums

open access: yesNonlinear Analysis, 2018
Let {Xi , i ⩾ 1} be a sequence of identically distributed real-valued random variables with common distribution FX; let {θi , i ⩾ 1} be a sequence of identically distributed, nonnegative and nondegenerate at zero random variables; and let τ be a positive
Yang Yang, Xi Xi Shi, Xing Fang Huang
doaj   +1 more source

A Review of More than One Hundred Pareto-Tail Index Estimators

open access: yesStatistica, 2021
Heavy-tailed distributions are often encountered in economics, finance, biology, telecommunications, geology, etc. The heaviness of a tail is measured by a tail index. Numerous methods for tail index estimation have been proposed. This paper reviews more
Igor Fedotenkov
doaj   +1 more source

A New Class of Heavy-Tailed Distributions: Modeling and Simulating Actuarial Measures

open access: yesComplexity, 2021
Statistical distributions play a prominent role for modeling data in applied fields, particularly in actuarial, financial sciences, and risk management fields.
Jin Zhao   +4 more
doaj   +1 more source

Runaway events dominate the heavy tail of citation distributions [PDF]

open access: yesarXiv.org, 2012
Statistical distributions with heavy tails are ubiquitous in natural and social phenomena. Since the entries in heavy tail have unproportional significance, the knowledge of its exact shape is very important.
M. Golosovsky, S. Solomon
semanticscholar   +1 more source

Heavy-Tailed Independent Component Analysis [PDF]

open access: yes2015 IEEE 56th Annual Symposium on Foundations of Computer Science, 2015
30 ...
Anderson, Joseph   +3 more
openaire   +2 more sources

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