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Heavy operators and hydrodynamic tails [PDF]

open access: yesSciPost Physics, 2020
The late time physics of interacting QFTs at finite temperature is controlled by hydrodynamics. For CFTs this implies that heavy operators -- which are generically expected to create thermal states -- can be studied semiclassically.
Luca V. Delacretaz
doaj   +3 more sources

Understanding Heavy Tails in a Bounded World or, is a Truncated Heavy Tail Heavy or Not? [PDF]

open access: yesStochastic Models, 2012
We address the important question of the extent to which random variables and vectors with truncated power tails retain the characteristic features of random variables and vectors with power tails. We define two truncation regimes, soft truncation regime and hard truncation regime, and show that, in the soft truncation regime, truncated power tails ...
Gennady Samorodnitsky   +1 more
exaly   +3 more sources

Linear Regression for Heavy Tails [PDF]

open access: yesRisks, 2018
There exist several estimators of the regression line in the simple linear regression: Least Squares, Least Absolute Deviation, Right Median, Theil–Sen, Weighted Balance, and Least Trimmed Squares.
Guus Balkema, Paul Embrechts
doaj   +3 more sources

Heavy tails and pruning in programmable photonic circuits for universal unitaries [PDF]

open access: yesNature Communications, 2023
Authors model programmable photonic circuits targeting universal unitaries and verify that a type of unit rotation operator has a heavy-tailed distribution.
Sunkyu Yu, Namkyoo Park
doaj   +2 more sources

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   +3 more sources

Top Incomes, Heavy Tails, and Rank-Size Regressions

open access: yesEconometrics, 2018
In economics, rank-size regressions provide popular estimators of tail exponents of heavy-tailed distributions. We discuss the properties of this approach when the tail of the distribution is regularly varying rather than strictly Pareto.
Christian Schluter
doaj   +3 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   +7 more sources

The Asymptotics of Moments for the Remaining Time of Heavy-Tail Distributions

open access: yesComputer Sciences & Mathematics Forum, 2023
Recent mathematical models of reliability computer systems and telecommunication networks are based on distributions with heavy tails. This paper falls into the category of exploring the classical models with heavy tails: Gnedenko–Weibull, Burr ...
Vladimir Rusev, Alexander Skorikov
doaj   +1 more source

Assessment of temporal change in the tails of probability distribution of daily precipitation over India due to climatic shift in the 1970s

open access: yesJournal of Water and Climate Change, 2021
Daily precipitation extremes are crucial in the hydrological design of major water control structures and are expected to show a changing tendency over time due to climate change.
Neha Gupta, Sagar Rohidas Chavan
doaj   +1 more source

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