The Regression analysis is considered as a basic element of statistics science elements, and it is an important style of applied statistics when studying different social and economical phenomena. As well as it is considered the most statistical method used in different sciences and fields, and it determines in clear picture the relations among the variables in the form of equation replaced from the degree of parametric on the strength and the importance of this relationship .And ;also it repots the degree of prediction and response ;also ,it is necessary in regression planning and making decisions for finding regression equation .And it is one of modern styles which tak observable caring especially in artificial neural networks. Our main aim is using neural networks in regression in special visage comparison of neural networks styles with classical styles in analyzing linear and non linear regression of prediction in monthly production of electric energy for the seven years i .e from 2006 to 2012 . The research includes the method of analyzing prediction and regression by using the two methods, classic and neural networks and making comparison between the two methods , the 1st method involve the linear model by using the data of chemical operation as a dependent variable 7 reaction time ,temperature as an independent variables for 2 years while the 2nd used the data for seven last years to reach the best method in evaluating statistical parameters , to support the research we generate three types of data one for simple linear regression , 2nd for time series and 3rd for non liner data. The results prove that neural networks are the best method in non linear models while the reverse in the linear models explaining best ways their results.
Mixed-effects conditional logistic regression is evidently more effective in the study of qualitative differences in longitudinal pollution data as well as their implications on heterogeneous subgroups. This study seeks that conditional logistic regression is a robust evaluation method for environmental studies, thru the analysis of environment pollution as a function of oil production and environmental factors. Consequently, it has been established theoretically that the primary objective of model selection in this research is to identify the candidate model that is optimal for the conditional design. The candidate model should achieve generalizability, goodness-of-fit, parsimony and establish equilibrium between bias and variab
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Abstract
Travel Time estimation and reliability measurement is an important issues for improving operation efficiency and safety of traffic roads networks. The aim of this research is the estimation of total travel time and distribution analysis for three selected links in Palestine Arterial Street in Baghdad city. Buffer time index results in worse reliability conditions. Link (2) from Bab Al Mutham intersection to Al-Sakara intersection produced a buffer index of about 36% and 26 % for Link (1) Al-Mawall intersection to Bab Al- Mutham intersection and finally for link (3) which presented a 24% buffer index. These illustrated that the reliability get worst for link
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The research targets exploring the designs of the kindergartens’ libraries in Baghdad for the perspective of the teachers as well as possible methods of improvements, considering the importance of this type of furniture for the child and its vital role in getting the child into the habit of reading and browsing, since the kindergarten library is the first of its kind that the child encounters in his life, if the relationship between the child and the library is of a positive type the experience with both printed and non-printed materials will be joyful and this type of relationship continues and strengthen with all other types of libraries over time. To achieve the goals of the research, the researcher prepared a focused survey sheet t
... Show MoreFocused research problem that every work of any kind or size has signs indicating it and reveal the nature of either positive aims to achieve the objectives of the organization or a negative intersects with and contrasts with the context and style is the of work, as much as we care to fulfill the positive initiatives and seek to activate it and it to expect of them development of work and approach of the target by most direct route, we should take care also and just the sane, if not larger by indicators and negative actions because it is the way and means to detect imbalances cases that prevent achieving the desired objectives, or cause waste of money, effort, time, and therefore dispersion energies, efforts and wasted resources wit
... Show MoreDuring the kingdom period between 1925-1958 fifty two member of parliament were elected representingHilla governorate. Only twenty nine of them were from Hilla that cause of choosing a member was according to qualifications of that era to play vole in Iraqi policy. Some of house qualifications related to tribes or privately of family. Other important causes of choosing a member depended on relationship to political parfait or holding scientific degree, in addition some members filled positions in the government such as being previous minster which gave him special distinction to be chosen as amember. Some other were members of the senate, here we should refer to the article no,63 of Iraqi constitution which imposes that any minister
... Show MoreThis study aims to examine the technologies of education and their importance, shedding light on their reality and status in Sudan especially in the secondary stage. It has become necessary to invest these technologies and include them in different aspects of the technical education curricula. Such a step helps cope with the innovative scientific development in the advanced countries, qualify professors and technicians, develop the factories and workshops, and create an attractive technical educational environment to the pupils. Thus, the researcher has adopted a descriptive analytical approach that is based on conducting pilot visits to certain technical schools in Al-Khartoum state. Different aspects of such schools were examined
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ان شركات التأمين وبسبب طبيعة نشاطها التأميني تتجمع لديها أموال ضخمة عن الأقساط التي تحصلها من المؤمن لهم, ولغرض عدم ترك هذه الاموال عاطلة, فأنه يتم استثمارها في مجالات وأدوات استثمار متنوعة لتحقيق عوائد منها. هذا ولغرض تحديد وتوجيه هذه الاموال في مجال أو أداة الاستثمار المناسبة أو تحديد مدى جدوى هذه الاستثمارات, فانه يتم تقييمها, وهناك عدة نماذج رياضية لتقييم بدائل الاستثمار في شركات التأمين, إلا أنه لا
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The time series of statistical methods mission followed in this area analysis method, Figuring certain displayed on a certain period of time and analysis we can identify the pattern and the factors affecting them and use them to predict the future of the phenomenon of values, which helps to develop a way of predicting the development of the economic development of sound
The research aims to select the best model to predict the number of infections with hepatitis Alvairose models using Box - Jenkins non-seasonal forecasting in the future.
Data were collected from the Ministry of Health / Department of Health Statistics for the period (from January 2009 until December 2013) was used
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The current study presents the simulative study and evaluation of MANET mobility models over UDP traffic pattern to determine the effects of this traffic pattern on mobility models in MANET which is implemented in NS-2.35 according to various performance metri (Throughput, AED (Average End-2-end Delay), drop packets, NRL (Normalize Routing Load) and PDF (Packet Delivery Fraction)) with various parameters such as different velocities, different environment areas, different number of nodes, different traffic rates, different traffic sources, different pause times and different simulation times . A routing protocol.…was exploited AODV(Adhoc On demand Distance Vector) and RWP (Random Waypoint), GMM (Gauss Markov Model), RPGM (Refere
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The research deals with the problems of improvisation in two basic subjects and applied a samples and conclusion. The first topic focuses on the concept of improvisation and spontaneity and clarifies the confusion between them. The second topic deals with the foundations and principles on which the actor is based in his artistic preparation for the purpose of developing his improvisational abilities.
The research focuses on clarifying the dimensions of improvisational techniques and its multiplicity in the modern theater. It analyzes the method of improvisation and its use in the construction and composition of the theatrical performance. It deals with two important experiments, such as the experience of the Russian directo
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