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معالجة عدم استقراریة السلسلة الزمنیة - مراجعة مقال- [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2022
the    time series is a problem in econometric analysis as the statistical properties of series analysis are lost when using unstable time series.
Alla abd alsatar   +2 more
doaj   +1 more source

Comparison of prediction using Matching Pattern and state space models [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2022
Predicting future behavior is one of the important topics in statistical sciences due to the need for it in different areas of life, and most countries rely on their development programs on advanced scientific foundations and methods in order to reach ...
heyam hayawi, najlaa saad
doaj   +1 more source

Using Wavelet Shrinkage in the Cox Proportional Hazards Regression model (simulation study) [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2022
The proposed method in this paper dealt with the problem of data contamination in the Cox Proportional Hazards Regression model (CPHRM) by using Wavelet Shrinkage to de-noise data, calculating the discrete wavelet transformation coefficients for wavelets
taha ali, Jwana Rostam Qadir
doaj   +1 more source

Identification of Transformation Function Models for OPEC Crude Oil Prices [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2022
The transformation function model is one of the basic concepts in time series as it deals with multivariate time series. As for the design of this model, it depends on the data available in the time series and on other information in the series ...
hashim huseen, najlaa saad
doaj   +1 more source

Statistical Analysis of Properties of Technological Charge and Manufacturing Tolerance of Thin-Walled Sections in Process of Multi-Workstations Roller Bending [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The studied collecting electrodes for electrostatic precipitators are cold-rolled formed. Here Sigma 750 open section was manufactured of DC01 steel grade. Length of the electrodes ranged from 8 to 13 meters, all were thin-walled of 1.5 mm.
P. Tracz   +3 more
doaj   +1 more source

The Influence of Geological Conditions in the Hangzhou Bay Area on the Deformation Behavior of Deep Excavations

open access: yesJournal of Marine Science and Engineering, 2023
The deformation behavior of deep excavations is affected by many factors, among which the geological conditions are greatly affected. Hangzhou Bay is affected by marine siltation and river alluvium, and the geological conditions within the urban area of ...
Yihong Zhu   +6 more
doaj   +1 more source

Cosmic statistics of statistics [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
The errors on statistics measured in finite galaxy catalogs are exhaustively investigated. The theory of errors on factorial moments by Szapudi & Colombi (1996) is applied to cumulants via a series expansion method. All results are subsequently extended to the weakly non-linear regime.
Szapudi, I., Colombi, S., Bernardeau, F.
openaire   +2 more sources

Statistical information on the socio-economic development of Bakhchisarai at the end of the 18th – beginning of the 20th centuries [PDF]

open access: yesКрымское историческое обозрение, 2021
The city of Bakhchisarai turned into a district town in the Tauride province after the annexation of the Crimea to the Russian Empire. This article analyzes the picture of urban life, including the dynamics of population growth, an increase in the number
Elviz Osmanov
doaj   +1 more source

Water Network-Failure Data Assessment

open access: yesEnergies, 2020
The water-supply system is one of the basic and most important critical infrastructures. Water supply service disruption (water quality or quantity) may have serious consequences in modern societies.
Katarzyna Pietrucha-Urbanik   +2 more
doaj   +1 more source

Linear regression for Poisson count data: a new semi-analytical method with applications to COVID-19 events

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
This study presents the application of a new semi-analytical method of linear regression for Poisson count data to COVID-19 events. The regression is based on the maximum-likelihood solution for the best-fit parameters presented in an earlier publication,
Massimiliano Bonamente
doaj   +1 more source

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