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استخدام المحاكاة للمفاضلة بين بعض الطرائق الحديثة لنموذج GM(1,1) لايجاد القيم المفقودة و تقدير المعلمات مع تطبيق عملي
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The grey system model GM(1,1) is the model of the prediction of the time series and the basis of the grey theory. This research presents the methods for estimating parameters of the grey model GM(1,1) is the accumulative method (ACC), the exponential method (EXP), modified exponential method (Mod EXP) and the Particle Swarm Optimization method (PSO). These methods were compared based on the Mean square error (MSE) and the Mean Absolute percentage error (MAPE) as a basis comparator and the simulation method was adopted for the best of the four methods, The best method was obtained and then applied to real data. This data represents the consumption rate of two types of oils a heavy fuel (HFO) and diesel fuel (D.O) and the use of tests to confirm the accuracy of the grey model. After obtaining the results, the best method to estimate the parameters of the grey model GM(1,1) is the method of the Particle Swarm Optimization method (PSO) It has been used to treatment the missing values ​​in the data and in the prediction where it has been shown to have the best results

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Publication Date
Sun May 31 2026
Journal Name
Sciences Journal Of Physical Education
صعوبات استخدام المدرسين لأساليب التدريس الحديثة بدرس التربية الرياضية للمرحلة المتوسطة
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من أجل الإجابة على التساؤل المتعلق بمشكلة البحث وهو؛ ماهي الصعوبات التي تواجه المدرسين باستخدام أساليب التدريس الحديثة بدرس التربية الرياضية للمرحلة المتوسطة؟ والعمل على إيجاد الحلول المناسبة لهذه الصعوبات. استخدم الباحثين المنهج الوصفي بالأسلوب المسحي على عينة من مدرسي ومدرسات التربية الرياضية في محافظة ديالى في المدارس المتوسطة والبالغ عددهم (81) مدرساً ومدرسة، وبعد إعداد الاستبانة الخاصة بالبحث وتوزيع

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Publication Date
Thu Dec 13 2018
Journal Name
Al-adab Journal
مستويات استخدام اللغة وانواعها
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اللغة هي الأداة  الرئيسة  للتواصل  اللغوي بين أفراد المجتمع . أن المتحدث بأية لغة يحتاج إلى استخدام رموز مشتركة. ومع ذلك، تسهم الظروف الاجتماعية والجغرافية والفردية المختلفة في ذلك, اذ أن هنالك طرقاً مختلفة لاستخدام اللغة نفسها, لذلك فأنها ضرورية للحفاظ على انماط معينة لجعل التواصل ممكنا. وهذا الاستخدام المختلف يؤدي الى  تنوع استخدام اللغة.                     هذا يعني ان المتحدثين في مكان ما لا يتكل

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Publication Date
Sun Nov 20 2022
Journal Name
Journal Of Education College Wasit University
" مظاهر النهضة الحديثة في العراق في العهد العثماني المتأخر "
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    دخلت حركة الإصلاحات العثمانية العراق مع تولي مدحت باشا ولاية بغداد (1869 -1872)  وكان لذلك اثر كبير في احداث تغيير جذري للمجتمع العراقي ، بدء من اجراء إصلاحات إدارية عززت من نظام الحكم المركزي وسعت الى التقليل من مظاهر الفوضى داخل المجتمع وصولا الى تكوين الوعي السياسي الجمعي والنخبوي للمجتمع العراقي ، منذ النصف الثاني للقرن التاسع عشر حتى مطلع القرن لعشرين. من هنا جاءت فكرة موضوع البحث للاستفادة التاريخية

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Publication Date
Thu Dec 30 2021
Journal Name
حوليات أداب عين شمس
قدسية يوم السبت في القصة العبرية الحديثة (نماذج مختارة)
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Publication Date
Mon Jun 05 2023
Journal Name
Journal Of Economics And Administrative Sciences
Comparison of Poisson Regression and Conway Maxwell Poisson Models Using Simulation
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Regression models are one of the most important models used in modern studies, especially research and health studies because of the important results they achieve. Two regression models were used: Poisson Regression Model and Conway-Max Well-  Poisson), where this study aimed to make a comparison between the two models and choose the best one between them using the simulation method and at different sample sizes (n = 25,50,100) and with repetitions (r = 1000). The Matlab program was adopted.) to conduct a simulation experiment, where the results showed the superiority of the Poisson model through the mean square error criterion (MSE) and also through the Akaiki criterion (AIC) for the same distribution.

Paper type:

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Publication Date
Thu Apr 30 2020
Journal Name
Journal Of Economics And Administrative Sciences
Comparison Between Tree regression (TR), and Negative binomial regression (NBR) by Using Simulation.
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            In this paper, the process of comparison between the tree regression model and the negative binomial regression. As these models included two types of statistical methods represented by the first type "non parameter statistic" which is the tree regression that aims to divide the data set into subgroups, and the second type is the "parameter statistic" of negative binomial regression, which is usually used when dealing with medical data, especially when dealing with large sample sizes. Comparison of these methods according to the average mean squares error (MSE) and using the simulation of the experiment and taking different sample

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Publication Date
Mon Jun 05 2023
Journal Name
Journal Of Economics And Administrative Sciences
Estimating the Population Mean in Stratified Random Sampling Using Combined Regression with the Presence of Outliers
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In this research, the covariance estimates were used to estimate the population mean in the stratified random sampling and combined regression estimates. were compared by employing the robust variance-covariance matrices estimates with combined regression estimates by employing the traditional variance-covariance matrices estimates when estimating the regression parameter, through the two efficiency criteria (RE) and mean squared error (MSE). We found that robust estimates significantly improved the quality of combined regression estimates by reducing the effect of outliers using robust covariance and covariance matrices estimates (MCD, MVE) when estimating the regression parameter. In addition, the results of the simulation study proved

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Publication Date
Tue Sep 28 2021
Journal Name
Journal Of The College Of Education For Women
The Degree of Knowledge and Use of Authentic Assessment Tools by Basic Elementary Teachers' According to some Variables: أمجد عزات جمعة، شريف عبد الرحمن السعودي، و سلمى علي العلوي
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Evaluation is one of the most important elements of  teaching process. The recent trends in evaluation and educational reform movements have called for using alternative evaluation, which focuses on performance evaluation. Authentic assessment is usually described as formative, in which students participate in their acquisition, in addition to the fact that students are productive and active, which is reflected in the students' achievement and skill level. The study aims to reveal the degree of knowledge and use of alternative assessment tools by primary school teachers in Gaza -Palestine. To meet the objective of the study, the researchers used the descriptive-analytical method and the questioner as a study tool. The study sample c

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Publication Date
Tue Jun 30 2020
Journal Name
Journal Of Economics And Administrative Sciences
Compare Prediction by Autoregressive Integrated Moving Average Model from first order with Exponential Weighted Moving Average
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The prediction process of time series for some time-related phenomena, in particular, the autoregressive integrated moving average(ARIMA) models is one of the important topics in the theory of time series analysis in the applied statistics. Perhaps its importance lies in the basic stages in analyzing of the structure or modeling and the conditions that must be provided in the stochastic process. This paper deals with two methods of predicting the first was a special case of autoregressive integrated moving average which is ARIMA (0,1,1) if the value of the parameter equal to zero, then it is called Random Walk model, the second was the exponential weighted moving average (EWMA). It was implemented in the data of the monthly traff

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Publication Date
Sun Dec 30 2018
Journal Name
College Of Islamic Sciences
القيم في كتاب القراءة الكوردية للصف الثاني في المرحلة الأساسية: دراسة تحليلية
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ملخـــص البحــــث

 

البحث يحدد القيم التي تم التركيز عليها والإهتمام بها في كتاب القراءة الكوردية للصف الثاني في المرحلة الاساسية  المقرر, وكذلك القيم التي لم يتم التركيز عليها أو الإهتمام بها و التي تم تجاهلها بصورة كاملة في نفس الكتاب. وتحديد عدد الصفحات التي تم تخصيصها مقارنة مع مساحات الصور التوضيحية والفنون الأدبية في الكتاب المقرر

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