Results 11 to 20 of about 21,896 (225)

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   +7 more sources

The Beta-Gompertz Distribution [PDF]

open access: yesRevista Colombiana de Estadística, 2014
In this paper, we introduce a new four-parameter generalized version of the Gompertz model which is called Beta-Gompertz (BG) distribution. It includes some well-known lifetime distributions such as beta-exponential and generalized Gompertz distributions as special sub-models.
JAFARI, ALI AKBAR   +2 more
core   +8 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

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 inverted Gompertz-Fréchet distribution with applications [PDF]

open access: yesScientific African, 2023
The probability distribution is an important aspect of probability theory because of its vast relevance in almost all human disciplines. Its applicability in finance, medicine, agriculture, actuarial science, demography, and econometrics, to mention but ...
Eno E.E. Akarawak   +5 more
doaj   +2 more sources

The Generalized Gompertz Distribution

open access: yesApplied Mathematical Modelling, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ahmad M Alshamrani
exaly   +2 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, Even Tjørve
doaj   +3 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

Kinetic Study of Biogas Production from Animal Manure and Organic Waste in Semarang City by Using Anaerobic Digestion Method

open access: yesIndonesian Journal of Chemistry, 2021
The biogas fermentation from animal manure and organic waste was investigated with a comparison percentage of raw material used inside the digester with the anaerobic digestion process. Animal manure consists of cow dung and chicken manure, while organic
Fahmi Arifan   +2 more
doaj   +1 more source

Biological and statistical interpretation of size-at-age, mixed-effects models of growth [PDF]

open access: yesRoyal Society Open Science, 2020
The differences in life-history traits and processes between organisms living in the same or different populations contribute to their ecological and evolutionary dynamics.
Simone Vincenzi   +2 more
doaj   +1 more source

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