Results 11 to 20 of about 888,711 (295)

Distinguishing Log-Concavity from Heavy Tails [PDF]

open access: yesRisks, 2017
Well-behaved densities are typically log-convex with heavy tails and log-concave with light ones. We discuss a benchmark for distinguishing between the two cases, based on the observation that large values of a sum X 1 + X 2 occur as result ...
Søren Asmussen, Jaakko Lehtomaa
doaj   +2 more sources

The fundamentals of heavy-tails [PDF]

open access: yesACM SIGMETRICS Performance Evaluation Review, 2013
Heavy-tails are a continual source of excitement and confusion across disciplines as they are repeatedly "discovered" in new contexts. This is especially true within computer systems, where heavy-tails seemingly pop up everywhere -- from degree distributions in the internet and social networks to file sizes and interarrival times of workloads. However,
Nair, Jayakrishnan   +2 more
openaire   +5 more sources

Understanding Heavy Tails of Flood Peak Distributions [PDF]

open access: yes, 2022
Statistical distributions of flood peak discharge often show heavy tail behavior, that is, extreme floods are more likely to occur than would be predicted by commonly used distributions that have exponential asymptotic behavior.
Elena Macdonald   +26 more
core   +5 more sources

Inferring heavy tails of flood distributions through hydrograph recession analysis [PDF]

open access: yesHydrology and Earth System Sciences, 2023
Floods are often disastrous due to underestimation of the magnitude of rare events. Underestimation commonly happens when the magnitudes of floods follow a heavy-tailed distribution, but this behavior is not recognized and thus neglected for flood hazard
H.-J. Wang   +6 more
doaj   +1 more source

Outliers and the Ostensibly Heavy Tails [PDF]

open access: yesMathematical Methods of Statistics, 2019
The aim of the paper is to show that the presence of one possible type of outliers is not connected to that of heavy tails of the distribution. In contrary, typical situation for outliers appearance is the case of compact supported distributions.
Klebanov, L., Volchenkova, I.
openaire   +3 more sources

Tournament rewards and heavy tails [PDF]

open access: yesJournal of Economic Theory, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mikhail Drugov, Dmitry Ryvkin
openaire   +3 more sources

Revisiting and Modeling Power-Law Distributions in Empirical Outage Data of Power Systems

open access: yesPRX Energy, 2023
The size distributions of planned and forced outages and their restoration times in power systems have been studied for almost two decades and have drawn great interest as they display heavy tails.
Bálint Hartmann   +3 more
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

Heavy or semi-heavy tail, that is the question

open access: yesJournal of Applied Statistics, 2020
While there has been considerable research on the analysis of extreme values and outliers by using heavy-tailed distributions, little is known about the semi-heavy-tailed behaviors of data when there are a few suspicious outliers. To address the situation where data are skewed possessing semi-heavy tails, we introduce two new skewed distribution ...
Jamil, Ownuk   +2 more
openaire   +2 more sources

Data on metal accumulation in the tails of the lizard Microlophus atacamensis in a coastal zone of the Atacama Desert, northern Chile: A non-destructive biomonitoring tool for heavy metal pollution

open access: yesData in Brief, 2020
In this data article, we investigated the accumulation of heavy metals in the lizard Microlophus atacamensis, in three coastal areas of the Atacama Desert, northern Chile. We captured lizards in a non-intervened area (Parque Nacional Pan de Azucar, PAZ),
Yery Marambio-Alfaro   +8 more
doaj   +1 more source

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