Choosing the best method for estimating the survival function of inverse Gompertz distribution by using Integral mean squares error (IMSE)

Mustafa A. Hashim; Suhail N. Abood

doi:10.33095/jeas.v28i133.2360

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Publication Date

Fri Sep 30 2022

Journal Name

Journal Of Economics And Administrative Sciences

Volume

28

DOI

10.33095/jeas.v28i133.2360

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Choosing the best method for estimating the survival function of inverse Gompertz distribution by using Integral mean squares error (IMSE)

Mustafa A. Hashim

Suhail N. Abood

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In this research , we study the inverse Gompertz distribution (IG) and estimate the survival function of the distribution , and the survival function was evaluated using three methods (the Maximum likelihood, least squares, and percentiles estimators) and choosing the best method estimation ,as it was found that the best method for estimating the survival function is the squares-least method because it has the lowest IMSE and for all sample sizes

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Publication Date

Thu Jun 15 2017

Journal Name

International Journal Of Computer Applications

Analytical and Numerical Study of the Temperature Distribution for a Solid Sphere subjected to a Uniform Heat Generation

Hussein

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Publication Date

Mon Feb 18 2019

Journal Name

Iraqi Journal Of Physics

Relative intensity distribution in the rotational structure for B1Σ+- A1Π and B1Σ+- X1Σ+ electronic systems of BeO molecule

Boltzman distribution

electronic transitions

Beryllium Oxide molecule.

Marwa Waleed

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Theoretical spectroscopic study of Beryllium Oxide has been carried out, Boltzmann distribution of P, Q and R branches in the range of (0<J<13) at temperature 4200K for (0-0) band for electronic transitions B¹Σ⁺-A¹Π and B¹Σ-X¹Σ. The Boltzmann distribution of these branches has a maximum values at equal J approximately while the values of relative population are different. For the B¹Σ⁺- X¹Σ⁺ transition the branch's lines extend towards lower wavenumber. This is because (B_v'-B_v") value is negative, i.e B_v'< B_v"For B¹Σ⁺-A¹Π

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(1)

Publication Date

Wed Jan 01 2020

Journal Name

Periodicals Of Engineering And Natural Sciences

Comparison between the estimated of nonparametric methods by using the methodology of quantile regression models

Stratified quantile regression

quantile function

marginal model

conditional model

B-spline

kernel regression (Nadaraya-Watson)

varying coefficient models

Qutiaba

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This paper study two stratified quantile regression models of the marginal and the conditional varieties. We estimate the quantile functions of these models by using two nonparametric methods of smoothing spline (B-spline) and kernel regression (Nadaraya-Watson). The estimates can be obtained by solve nonparametric quantile regression problem which means minimizing the quantile regression objective functions and using the approach of varying coefficient models. The main goal is discussing the comparison between the estimators of the two nonparametric methods and adopting the best one between them

Publication Date

Fri Apr 12 2024

Journal Name

Revista Latinoamericana De Hipertension

Most common risk factors distribution for cervical cancer

Kawakeb

Sahar Jassim

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(1)

Publication Date

Tue Jan 01 2019

Journal Name

Aip Conference Proceedings

Common fixed points and S-best coapproximation in 2-Banach spaces

Reyadh Delfi

Ali Musaddak

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Publication Date

Mon Mar 01 2021

Journal Name

Journal Of Physics: Conference Series

Some Results in Grűnwald-Letnikov Fractional Derivative and its Best Approximation

Sura Khayoon

Saad Naji

Nadia M.J.

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AbstractIn This paper, we have been approximated Grűnwald-Letnikov Derivative of a function having m continuous derivatives by Bernstein Chlodowsky polynomials with proving its best approximation. As well as we have been solved Bagley-Torvik equation and Fokker–Planck equation where the derivative is in Grűnwald-Letnikov sense.

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(5)

Publication Date

Mon Nov 07 2016

Journal Name

Abu Dhabi International Petroleum Exhibition & Conference

Developed Material Balance Approach for Estimating Gas Initially in Place and Ultimate Recovery for Tight Gas Reservoirs

reservoir simulation

Material Balance Equation

tight gas

calculation

complex reservoir

viscosity

tight gas reservoir

transmissibility

equation

Omar

Md Hossain

Steven

Ali

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AbstractThe gas material balance equation (MBE) has been widely used as a practical as well as a simple tool to estimate gas initially in place (GIIP), and the ultimate recovery (UR) factor of a gas reservoir. The classical form of the gas material balance equation is developed by considering the reservoir as a simple tank model, in which the relationship between the pressure/gas compressibility factor (p/z) and cumulative gas production (Gp) is generally appeared to be linear. This linear plot is usually extrapolated to estimate GIIP at zero pressure, and UR factor for a given abandonment pressure. While this assumption is reasonable to some extent for conventional reservoirs, this may incur ... Show More

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(11)

(5)

Publication Date

Sun Mar 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

Using spatial analysis techniques to Preparing maps for distribution of pollutant concentrations in Shatt al-Arab waters in November 2015

Z. F.

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AbstractWater has a great self-generating capacity that can neutralize the polluting interventions carried out by humans. However, if human activities continue this uncontrolled and unsustainable exploitation of this resource, this regenerating capacity shall fail and it will be jeopardized definitively. Shatt Al-Arab River in South of Iraq. It has an active role in providing water for irrigation, industry, domestic use and a commercial gateway to Iraq. in the last five years Shatt Al-Arab suffered from a rise in pollutants due to the severe decline in sewage networks, irregular networks and pesticide products, as well as the outputs of factories and companies that find their way to water sou ... Show More

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(5)

Publication Date

Sun Mar 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

Using spatial analysis techniques to Preparing maps for distribution of pollutant concentrations in Shatt al-Arab waters in November 2015

E.F.

B. A.

R. R.

Z. F.

...Show More Authors

Water has a great self-generating capacity that can neutralize the polluting interventions carried out by humans. However, if human activities continue this uncontrolled and unsustainable exploitation of this resource, this regenerating capacity shall fail and it will be jeopardized definitively. Shatt Al-Arab River in South of Iraq. It has an active role in providing water for irrigation, industry, domestic use and a commercial gateway to Iraq. in the last five years Shatt Al-Arab suffered from a rise in pollutants due to the severe decline in sewage networks, irregular networks and pesticide products, as well as the outputs of factories and companies that find their way to water sources and lead to a widespread collapse of water quality.

(5)

Publication Date

Sun Feb 10 2019

Journal Name

Iraqi Journal Of Physics

Estimating excess of lung risk factor of radon gas for some houses in Al-Fallujah city

Radon

Radiation Hazard

Al-Fallujah City.

Asia H.

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Instruments for the measurements of radon, thoron and its decay
products in air are based mostly on the detection of alpha particles.
The health hazards of radon on general public are well known. In
order to understand the level and distribution of ²²²Rn concentrations
indoor in Al-Fallujah City; new technique was used, this technique
was three radon–thoron mixed field dosimeters is made up of a twin
chamber cylindrical system and three LR-115 type II detectors were
employed. The aim of this work was to measurement radon gas using
SSNTD technique door in in Al-Fallujah City, and estimation of
excess in cancer due to increment in radon gas. Results for samples
which are collected from January to

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