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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Computational Statis...arrow_drop_down
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Computational Statistics
Article . 2000 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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Article . 2025
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A Multivariate and Asymmetric Generalization of Laplace Distribution

A multivariate and asymmetric generalization of Laplace distribution
Authors: Tomasz J. Kozubowski; Krzysztof Podgórski;

A Multivariate and Asymmetric Generalization of Laplace Distribution

Abstract

The authors describe the class of multivariate and not necessarily symmetric distributions called asymmetric Laplace (AL) laws that naturally extend properties and reduce to Laplace distribution in one dimension. Explicit forms of characteristic functions and densities of AL laws are presented, their properties are discussed, a representation that leads to a simple simulation method is derived. It is proved that AL class coincides with the class of limiting distributions as \(p\to\infty\) in the random summation scheme \(\sqrt{(p)}\sum_{i=1}^{N_p}(y_i+(\sqrt{(p)}-1)m)\), where \(\{y_i,i\geq 1\}\) are i.i.d. random vectors in \(R^d\) with the mean vector \(m\) and finite second moments, \(N_p\) is a geometrically distributed random variable independent of \(\{y_i,i\geq 1\}\). Relations to other formerly considered classes of distributions containing Laplace laws are discussed.

Keywords

Sums of independent random variables; random walks, heavy tailed modelling, random summation, Laplace distribution, Infinitely divisible distributions; stable distributions, geometric stable law, simulation, geometric distribution, mixture, Large deviations, Probability distributions: general theory, Bessel function, elliptically contoured distribution

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
44
Top 10%
Top 10%
Average
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