Preferred Language
Articles
/
jeasiq-2359
A Comparative Study for Estimate Fractional Parameter of ARFIMA Model

      Long memory analysis is one of the most active areas in econometrics and time series where various methods have been introduced to identify and estimate the long memory parameter in partially integrated time series. One of the most common models used to represent time series that have a long memory is the ARFIMA (Auto Regressive Fractional Integration Moving Average Model) which diffs are a fractional number called the fractional parameter. To analyze and determine the ARFIMA model, the fractal parameter must be estimated. There are many methods for fractional parameter estimation. In this research, the estimation methods were divided into indirect methods, where the Hurst parameter is estimated first, and then the fractional integration parameter is estimated from it by a relation between them. As for direct methods, the fractional integration parameter is estimated directly without relying on Hurst's parameter, and most of them are semi parametric methods. In this paper, some of the most common direct methods were used to estimate the fraction modulus namely (Geweke-Porter-Hudak, Smoothed Geweke-Porter-Hudak, Local Whittle, Wavelet and weighted wavelet), using simulation method with different value of (d) and different size of time series. The comparison between the methods was done using the mean squared error (MSE). It turns out that the best methods to estimate the fractional parameter is (Local Whittle).

      The ARFIMA model was generated by a function programmed by the MATLAB statistical program

Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Sat Oct 28 2023
Journal Name
Baghdad Science Journal
A Comparative Study on Association Rule Mining Algorithms on the Hospital Infection Control Dataset

Administrative procedures in various organizations produce numerous crucial records and data. These
records and data are also used in other processes like customer relationship management and accounting
operations.It is incredibly challenging to use and extract valuable and meaningful information from these data
and records because they are frequently enormous and continuously growing in size and complexity.Data
mining is the act of sorting through large data sets to find patterns and relationships that might aid in the data
analysis process of resolving business issues. Using data mining techniques, enterprises can forecast future
trends and make better business decisions.The Apriori algorithm has bee

... Show More
Scopus Crossref
View Publication Preview PDF
Publication Date
Sat Dec 01 2012
Journal Name
Journal Of Economics And Administrative Sciences
Comparison between the empirical bayes method with moments method to estimate the affiliation parameter in the clinical trials using simulation

In this research the Empirical Bayes method is used to Estimate the affiliation parameter in the clinical trials and then we compare this with the Moment Estimates for this parameter using Monte Carlo stimulation , we assumed that the distribution of the observation is binomial distribution while the distribution with the unknown random parameters is beta distribution ,finally we conclude that the Empirical bayes method for the random affiliation parameter is efficient using Mean Squares Error (MSE) and for different Sample size .

Crossref
View Publication Preview PDF
Publication Date
Sat Dec 30 2023
Journal Name
Iraqi Journal Of Science
Design of Optimal Control for the In-host Tuberculosis Fractional Model

     In this article, we investigate a mathematical fractional model of tuberculosis that takes into account vaccination as a possible way to treat the disease. We use an in-host tuberculosis fractional model that shows how Macrophages and Mycobacterium tuberculosis interact to knowledge of how vaccination treatments affect macrophages that have not been infected. The existence of optimal control is proven. The Hamiltonian function and the maximum principle of the Pontryagin are used to describe the optimal control. In addition, we use the theory of optimal control to develop an algorithm that leads to choosing the best vaccination plan. The best numerical solutions have been discovered using the forward and backward fractional Euler

... Show More
Scopus (1)
Scopus Crossref
View Publication Preview PDF
Publication Date
Sat Dec 24 2022
Journal Name
Journal Of Legal Sciences
Criminalization of Graft in Palestinian Legislation between Constitutional Legitimacy and Procedural Necessity : A Comparative Study

This study aimed to identify the extent of the constitutionality of proving the crime of graft regarding transferring the burden of proof to the accused and its violation of the presumption of innocence. The presumption of innocence, unlike the Kuwaiti legislator, who did not shift the burden of proof in the crimes of illegitimate gain, and that the proof of the crimes of illegitimate gain according to the Palestinian and Jordanian legislators are linked to two forms: actual exploitation and judgmental or presumed exploitation, while the Kuwaiti legislator has limited proof of illegitimate gain crimes in the form of The study recommended a set of recommendations for an amendment to the text of Article 3 of Decree Law No. 37 of 2018 regar

... Show More
View Publication Preview PDF
Publication Date
Thu Aug 31 2023
Journal Name
Journal Of Legal Sciences
The Authorities of Owner’s on the Detached Parts in the Ownership of the Floors and Apartments : A Comparative Study

       The right of the owner of the floor or apartment over his detached unit is a full ownership right, which simplifies to its owner the powers of use, exploitation and disposal, provided that the owner’s powers in the system of ownership of floors and apartments, as well as their adherence to the general restrictions of ownership, remain also restricted by agreement restrictions, the source of which is title deeds And the building bylaws, which are drawn up by the Building Owners Association.

View Publication Preview PDF
Publication Date
Wed Jun 15 2022
Journal Name
Journal Of Legal Sciences
Catering Contract of Restaurants in the English Law. A Comparative Analytical Study with Iraqi Civil Law

The Catering contract is considered as a type of hospitality contracts in the English common law of customary origins. Which is unwritten and based upon judicial precedents of the English courts. It is a complex contract of mixed nature، Is Regarded as a contract for the sale of meals of food and drink،, and is considered as a contract for supply of services concerning the preparation of food and drink، for providing them to the customer، as well as being a bailment contract. It is worth-bearing in mind that this contract is subject to the rules of three important English legislations: The Sale of Goods Act 1979، The Supply of Goods and Services 1982، The Consumer Protection Act 1987، and The Consumer Rights Act 2015. It is also w

... Show More
Crossref
View Publication Preview PDF
Publication Date
Sun Jan 24 2016
Journal Name
Al-academy
Babylonian theater (Its history, models and properties) a historical comparative study: محمد صبري صالح

The building of the Babylonian theater is considered as one of the distinctive buildings where its foundations have remained steadfast in the face of geographical changes, social's erosion and groundwater that threatened almost all traces of Babylon despite the destruction of the outer structure of the building. The general directorate of antiques performed prospection for those foundations (the ground map), and then the building was completed by new bricks over the original scheme. It became clear when examining the building; its components and foundations, that the building is unique in comparison with the old buildings of the world throughout Iraq. There are similar buildings in other places like Jordan and North Africa such as

... Show More
Crossref
View Publication Preview PDF
Publication Date
Mon Mar 01 2010
Journal Name
Journal Of Economics And Administrative Sciences
The study of the effect of the use of programming in the linear programming model (applied study)

The parametric programming considered as type of sensitivity analysis. In this research concerning to study the effect of the variations on linear programming model (objective function coefficients and right hand side) on the optimal solution. To determine the parameter (θ) value (-5≤ θ ≤5).Whereas the result، the objective function equal  zero and the decision variables are non basic، when the parameter (θ = -5).The objective function value increases when the parameter (θ= 5) and the decision variables are basic، with the except of X24, X34.Whenever the parameter value increase, the objectiv

... Show More
Crossref
View Publication Preview PDF
Publication Date
Thu Dec 26 2019
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
The design of a proposed model for the application of the insurance policy for medical errors

The aim of this study is to design a proposed model for a document to insure the mistakes of the medical profession in estimating the compensation for medical errors. The medical profession is an honest profession aimed primarily at serving human and human beings. In this case, the doctor may be subject to error and error , And the research has adopted the descriptive approach and the research reached several conclusions, the most prominent of which is no one to bear the responsibility of medical error, although the responsibility shared and the doctor contributes to them, doctors do not deal with patients according to their educational level and cultural and there are some doctors do not inform patients The absence of a document to insu

... Show More
View Publication Preview PDF
Publication Date
Thu Nov 01 2018
Journal Name
Journal Of Economics And Administrative Sciences
Estimate size sub-population by Killworth method

The aim of the thesis is to estimate the partial and inaccessible population groups, which is a field study to estimate the number of drug’s users in the Baghdad governorate for males who are (15-60) years old.

Because of the absence of data approved by government institutions, as well as the difficulty of estimating the numbers of these people from the traditional survey, in which the respondent expresses himself or his family members in some cases. In these challenges, the NSUM Network Scale-Up Method Is mainly based on asking respondents about the number of people they know in their network of drug addicts.

Based on this principle, a statistical questionnaire was designed to

... Show More
Crossref
View Publication Preview PDF