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مقارنة بعض طرائق تقدير أنموذج (GM (1,1 بوجود بيانات مفقودة مع تطبيق عملي
Other Title(s)
Comparison some estimation methods of GM(1,1) model with missing data and practical application
Author
Source
مجلة العلوم الاقتصادية و الإدارية
Issue
Vol. 24, Issue 103 (30 Apr. 2018), pp.420-437, 18 p.
Publisher
University of Baghdad College of Administration and Economics
Publication Date
2018-04-30
Country of Publication
Iraq
No. of Pages
18
Main Subjects
Economics & Business Administration
Abstract EN
This paper presents a grey model GM(1,1) of the first rank and a variable one and is the basis of the grey system theory , This research dealt properties of grey model and a set of methods to estimate parameters of the grey model GM(1,1) is the least square Method (LS) , weighted least square method (WLS), total least square method (TLS) and gradient descent method (DS).
These methods were compared based on two types of standards: Mean square error (MSE), mean absolute percentage error (MAPE), and after comparison using simulation the best method was applied to real data represented by the rate of consumption of the two types of oils a Heavy fuel (HFO) and diesel fuel (D.O) and has been applied several tests to make sure the accuracy of grey model GM(1,1).
The most important results we have reached (LS) is the best method to estimate the parameters of this model, as when applied proved to obtaining the best results and used this method in the process of addressing one of the problems of this data and missing values, and also used in the forecasting process for future values.
American Psychological Association (APA)
المهنا، فراس أحمد محمد. 2018. مقارنة بعض طرائق تقدير أنموذج (GM (1,1 بوجود بيانات مفقودة مع تطبيق عملي. مجلة العلوم الاقتصادية و الإدارية،مج. 24، ع. 103، ص ص. 420-437.
https://search.emarefa.net/detail/BIM-835735
Modern Language Association (MLA)
المهنا، فراس أحمد محمد. مقارنة بعض طرائق تقدير أنموذج (GM (1,1 بوجود بيانات مفقودة مع تطبيق عملي. مجلة العلوم الاقتصادية و الإدارية مج. 24، ع. 103 (2018)، ص ص. 420-437.
https://search.emarefa.net/detail/BIM-835735
American Medical Association (AMA)
المهنا، فراس أحمد محمد. مقارنة بعض طرائق تقدير أنموذج (GM (1,1 بوجود بيانات مفقودة مع تطبيق عملي. مجلة العلوم الاقتصادية و الإدارية. 2018. مج. 24، ع. 103، ص ص. 420-437.
https://search.emarefa.net/detail/BIM-835735
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 436
Record ID
BIM-835735