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The Gompertz-Pareto Income Distribution [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2010
This work analyzes the Gompertz-Pareto distribution (GPD) of personal income, formed by the combination of the Gompertz curve, representing the overwhelming majority of the economically less favorable part of the population of a country, and the Pareto ...
Abdalla   +54 more
core   +2 more sources

Some general Gompertz and Gompertz-Makeham life expectancy models

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
Life expectancy models are highly important, as they indicate the populations health. The present models consider several types of factors, and by analyzing them we extend the formulae to new, mixed types in order to create particular representations ...
Drăgan Mihăiţă
doaj   +2 more sources

Generalized Gompertz-power series distributions

open access: yesHacettepe Journal of Mathematics and Statistics, 2015
In this paper, we introduce the generalized Gompertz-power series class of distributions which is obtained by compounding generalized Gompertz and power series distributions.
Jafari, Ali Akbar, Tahmasebi, Saeid
core   +3 more sources

Statistical Features and Estimation Methods for Half-Logistic Unit-Gompertz Type-I Model

open access: yesMathematics, 2023
In this study, we propose a new three-parameter lifetime model based on the type-I half-logistic G family and the unit-Gompertz model, which we named the half-logistic unit Gompertz type-I distribution.
Anum Shafiq   +4 more
doaj   +3 more sources

The use of Gompertz models in growth analyses, and new Gompertz-model approach: An addition to the Unified-Richards family [PDF]

open access: yesPLoS ONE, 2017
The Gompertz model is well known and widely used in many aspects of biology. It has been frequently used to describe the growth of animals and plants, as well as the number or volume of bacteria and cancer cells.
Kathleen M C Tjørve
exaly   +2 more sources

Population modeling of tumor growth curves and the reduced Gompertz model improve prediction of the age of experimental tumors

open access: yesPLoS Computational Biology, 2020
Tumor growth curves are classically modeled by means of ordinary differential equations. In analyzing the Gompertz model several studies have reported a striking correlation between the two parameters of the model, which could be used to reduce the ...
Cristina Vaghi   +2 more
exaly   +2 more sources

Transmuted Generalized Gompertz distribution with application [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2017
This paper introduces the four parameter transmuted generalized Gompertz distribution which includes the transmuted Gompertz, transmuted generalized exponential, transmuted exponential, Gompertz, generalized exponential and exponential distributions as ...
Muhammad Shuaib Khan   +2 more
doaj   +4 more sources

The generalized Gompertz distribution

open access: yesApplied Mathematical Modelling, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
El-Gohary, A.   +2 more
exaly   +2 more sources

A unifying theory of aging and mortality [PDF]

open access: yesScientific Reports
In this paper, we advance the network theory of aging and mortality by developing a causal mathematical model for the mortality rate. First, we show that in large networks, where health deficits accumulate at nodes representing health indicators, the ...
Valentin Flietner   +5 more
doaj   +2 more sources

Numerical Methods on the Triple Informative Prior Distribution for the Failure Rate Basic Gompertz Model [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2022
In this paper, it has been dealt with basic Gompertz distribution. The maximum likelihood, Bayes methods of estimation were used to estimate the unknown shape parameter.
Nadia Al-Obedy   +2 more
doaj   +1 more source

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