Results 41 to 50 of about 1,360 (109)

On the Shifted Hybrid Log-Normal Distribution

open access: yesStatistica
The log-normal distribution is widely used to model positive valued data in many areas of applied research. However, sometimes the log-normal distribution does not completely satisfy the fitting expectations in every real life situations.
Damodaran Santhamani Shibu   +2 more
doaj   +1 more source

MENENTUKAN HARGA KONTRAK BERJANGKA NILAI TUKAR RUPIAH TERHADAP DOLLAR AS MENGGUNAKAN DISTRIBUSI LOGNORMAL

open access: yesE-Jurnal Matematika, 2015
The purpose of this study is to determine the fair price of a futures contract for the IDR (Rupiah) against the USD using lognormal distribution simulation. This result is compared with interest rate parity theorem.
GEDE SUMENDRA   +2 more
doaj  

On Modelling Insurance Data by Using a Generalized Lognormal Distribution || Sobre la modelización de datos de seguros usando una distribución lognormal generalizada [PDF]

open access: yesRevista de Métodos Cuantitativos para la Economía y la Empresa, 2014
In this paper, a new heavy-tailed distribution is used to model data with a strong right tail, as often occurs in practical situations. The distribution proposed is derived from the lognormal distribution, by using the Marshall and Olkin procedure.
García, Victoriano J.   +2 more
doaj  

Log-moment estimators of the Nakagami-lognormal distribution

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
In this paper, estimators of the Nakagami-lognormal (NL) distribution based on the method of log-moments have been derived and thoroughly analyzed. Unlike maximum likelihood (ML) estimators, the log-moment estimators of the NL distribution are obtained ...
Juan Reig   +3 more
doaj   +1 more source

A Study on Zografos-Balakrishnan Log-Normal Distribution

open access: yesRevstat Statistical Journal
In this article, we studied a generalization of the log-normal distribution called Zografos-Balakrishnan log-normal distribution and investigate its various important properties and functions including moments, quantile function, various reliability ...
D. S. Shibu, S. L. Nitin, M. R. Irshad
doaj   +1 more source

Species traits shape the relationship between local and regional species abundance distributions

open access: yesEcosphere, 2019
The species abundance distribution (SAD) depicts the relative abundance of species within a community, which is a key concept in ecology. Here, we test whether SADs are more likely to either follow a lognormal‐like or follow a logseries‐like distribution
Murilo Dantas de Miranda   +3 more
doaj   +1 more source

A produtividade dos autores sobre a Lei de Lotka Authors' productivity on Lotka's Law

open access: yesCiência da Informação, 2008
Estuda a produção estratificada dos autores produtores da literatura sobre a Lei de Lotka de 1922 a 2003 e analisa essa produtividade através dos modelos Poisson lognormal e Gauss Poisson inversa generalizada.
Ruben Urbizagastegui
doaj   +1 more source

Finding Most Reliable Path With Extended Shifted Lognormal Distribution

open access: yesIEEE Access, 2018
Travel time uncertainty may cause late arrival and impose a high penalty on travelers. There is a growing interest in modeling travel time uncertainty to optimize the reliability of travel time at the path and network level. Real data analysis finds that
Zhenzhen Yang   +4 more
doaj   +1 more source

Goodbye LogNormal Distribution

open access: yes, 2022
AbstractThe R-scripts presented and developed in the prior chapters assumed an investment return generating process that is both static and LogNormal, via the basic function. Indeed, had this work been done in the 1970s, or perhaps the 1670s when national (versus natural) tontines were first launched, that might have been sufficient.
openaire   +1 more source

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