text
article
2007
eng
The simplest case of the Repeated Measures Designs which consist of comparing two treatments for the single subject.The Repeated Measures Designs are the designs which many of treatments or conditions are applied on the same subject. Therefore, for comparing between two treatments we use nonparametric methods as well as parametric method when the assumption of normal distribution is satisfied . We also present the suggested method and compare it's result with other metods by applying an actual experiment on them.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
1
21
https://stats.mosuljournals.com/article_32441_66b2c4633bbf66d62195360418ecfd67.pdf
dx.doi.org/10.33899/iqjoss.2007.32441
Two-point Stepsize Gradient Algoriyhms for Unconstrained Optimization
Abbas
Y. Al-Bayati
author
Huda
I. Ahmed
author
text
article
2007
eng
In this paper we have investigated three algorithms. In the first algorithm we have derived a new optimal step size gradient algorithm which is preferable over the classical SD algorithm both in theory and in the real computation. In the second algorithm we have derived and implemented a new formula for the non-quadratic model with a new . In the third algorithm we have tried to make a new hybrid algorithm between the above three different step sizes.
Our numerical results are promising in general by implementing ten non-linear different test functions with different dimensions.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
1
26
https://stats.mosuljournals.com/article_32501_1b44d30d8c6fd2bc9438386cf1c2017d.pdf
dx.doi.org/10.33899/iqjoss.2007.32501
Employ the Principal Componants Manner in the Forecasting by Box – Jenkins Models
text
article
2007
eng
In this Research, we employ Principal Components manner for the forecasting in the time series , we are makig the forecast to a data which used from the researcher ( Ljung,1999) , when we used the principal components,we obtain a good forecasting with a good statistcal specifics
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
22
33
https://stats.mosuljournals.com/article_32442_f9d51938f51f4d5f1e48a80c98cf72a5.pdf
dx.doi.org/10.33899/iqjoss.2007.32442
Modifying Of Barzilai and Borwein Method for Solving Large-Scale Unconstrained Optimization Problems.
Khalil
K. Abbo
author
text
article
2007
eng
In this paper we present a technique for computing the minimum value of an objective function in the frame of gradient descent methods based on combination of Barzilai and Borwein approximation of Hessian matrix of objective function and Lipchetz constant in the gradient flow algorithm which is derived from a system of ordinary differential equations associated to unconstrained optimization problem. This algorithm suitable for large- scale unconstrained optimization problems, computational results for this algorithm is given and compared with BB method showing a considerable improvement.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
27
46
https://stats.mosuljournals.com/article_32504_58cf806d8d2ac37ebb26718b06e0820a.pdf
dx.doi.org/10.33899/iqjoss.2007.32504
Using Genetic Hybrid Algorithm in the Classification of Satellite Images
text
article
2007
eng
The importance of the classification of the satellite images appeared as one of the important subjects which the researchers were interested in, the traditional and hybrid methods were employed in the research.
In the traditional method the decision tree and K-means clustering algorithm were used, which gave bad and accepted results in classifying satellite images, so the importance of genetic hybrid algorithm study is concerned with classifying the satellite images.
Also a hybrid system was suggested between the genetic algorithm and the k-means clustering algorithm, which gave good results in classifying the satellite images.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
34
53
https://stats.mosuljournals.com/article_32637_d0f0f897e3dec121c8a368e54352f646.pdf
dx.doi.org/10.33899/iqjoss.2007.32637
text
article
2007
eng
Kriging technique is used for optimal prediction about grade of ore metal , such as, oil, gold, iron and cooper etc, hat exist at some location or locations.
In this paper we use this technique to predict the pollution of lead powder accumulating at 23 locations in Mosul city. The coordinates of these locations have been determined by projecting them on the map measurement .We could get five predictions of five unobserved locations of the pollution . Also we compute the error in these predications, total estimation and confidence limits for the mean of the pollution in Mosul city. The mathematical concepts in this research are the computation of variogram function and covariance function based on central location in the city and stationary assumption is assumed with discussion .
The covariance function is used in Kriging equation system to obtain the results that are very encouraging .All computation are executed by using MATLAB system.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
54
71
https://stats.mosuljournals.com/article_32455_194af38563fe05f58cb1c656e49dba50.pdf
dx.doi.org/10.33899/iqjoss.2007.32455
Comparison between some linear filter with application
text
article
2007
eng
This paper deals with the comparison between some linear filter for time series represented by Weiner filter through autoregressive model,moving averagemodel and difference filter. An application for lung cancer Time Series in Mosul city during (1990-2000) are also considered.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
72
94
https://stats.mosuljournals.com/article_32480_c844bd53ee0d8eb10791c5b44e70eed9.pdf
dx.doi.org/10.33899/iqjoss.2007.32480
Proposed Algorithm For Multiprocessor Scheduling
text
article
2007
eng
This study finds out a new algorithm for scheduling problem in computer, This algorithm was compared with HLFET(Highest Level First With Estimated Times Scheduling Algorithm) and SCFET (Smallest Co-Levels First With Estimated Times Scheduling Algorithm) scheduling algorithms.
By letting the communication cost is equal to zero, It shoues high efficiency and easy to use.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
95
112
https://stats.mosuljournals.com/article_32482_b0f7b00bb1fc526a73d80bf18d789895.pdf
dx.doi.org/10.33899/iqjoss.2007.32482
text
article
2007
eng
This research is characterized for detection of feedback between output series and input series, the importance of detection appearing of feedback when the adequate model is known ,it is also applied to some methods in detecting feedback by using two methods.
The first method is tests the cross-correlation function between prewhitened inputs and outputs series. Where the cross-correlation between prewhitened input series (t) and residual series (at).
The second method has been found uses F-test between two series of input and output.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
113
138
https://stats.mosuljournals.com/article_32484_0b3edde6805a8c13455e80eb766591ca.pdf
dx.doi.org/10.33899/iqjoss.2007.32484
Using Genetic Algorithm in Solving Transportation Problem
text
article
2007
eng
This research concentrates on the study of genetic algorithm which is regarded as one of the approaches of modern artificial intelligence an algorithm is suggested to transfer a gene to solve the problems of transportation. The application of this algorithm to the matters of balanced transportation led to a number of solutions equal to the number of generation including the most ideal solution (the least possible total cost). In addition, a new leap is suggested through the algorithm of genetic transference whose use led to tangible importance in the results (reducing the value of the total cost).
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
139
152
https://stats.mosuljournals.com/article_32487_58a5661d3befbcf1014579e094d5c7ba.pdf
dx.doi.org/10.33899/iqjoss.2007.32487
Shortcut Transformation Between the Results of R-Mode and Q-Mode in Factor Analysis
text
article
2007
eng
In factor analysis, whenever the number of variables (m) less than the number of the experimental units (n) the procedure of R-mode should be applied, if (m) exceed (n) the Q-mode is the suitable procedure to follow. A shortcut transformation between the results of the two procedures were established in any analytical step, they are: eigen vectors, factor loadings, factor coefficients and factor scores.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
153
174
https://stats.mosuljournals.com/article_32489_b6cfca3778da44f6618f1e3c6a83a667.pdf
dx.doi.org/10.33899/iqjoss.2007.32489
Estimate of parameters for simultaneous equations to agriculture investment and agriculture local output in IRAQ for the period(1980-2000)
text
article
2007
eng
This paper studied the relationship for some variables that direct and indirect effect for the agriculture investment and agriculture local output for the period (1980-2000), to help us to identification how this variables affect to the agriculture sector and what extent responding for this sector to this variables, for estimation we apply (Full Information Maximum Likelihood) (FIML) to estimate the parameters by using (SAS) and (MINITAB) Packages.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
175
193
https://stats.mosuljournals.com/article_32491_5ba4484cbffa04f0c0c6c33b9e2f84d7.pdf
dx.doi.org/10.33899/iqjoss.2007.32491
Comparison Study Between Two Ways Least Squares and Adaptive Regression In Regression linear model
text
article
2007
eng
In this research, we use on ( ) and ( ) two criterions to compare between the estimators of Adaptive Regression model and the estimators of Ordinary and General Least Squares, we found that, Adaptive Regression estimator is the best by comparing with estimators because minimum mean square error.
IRAQI JOURNAL OF STATISTICAL SCIENCES
University of Mosul
1680-855X
7
v.
1
no.
2007
194
214
https://stats.mosuljournals.com/article_32492_ac7a697c8418f73f171dbaa5713b5a8b.pdf
dx.doi.org/10.33899/iqjoss.2007.32492