Journal of Operational Research in its Applications
Year:2006 | Volume:3 | Issue:8|Papers Count:8

In this paper the relative efficiency of all bank mellat supervisions is calculated with using Data Envelopment Analysis (DEA) in different sections time. These supervisions can be compared with each other according to the obtained efficiency. Evaluating of a set of financial units will not be useful and eligible in a section time, when it may be arising accidence in that section time. For removing this problem in this research, a set of Iran mellat bank are evaluating in a period time.

Data Envelopment Analysis (DEA) is used as an important tool for target setting. In this paper the methods studied in the literature have been collected and compared.

In this paper the iterative methods, namely Newton, quasi-Newton and Broyden are studied. Convergence rate and accuracy of these three methods are investigated and the results are presented in tables and diagrams. Also, Newton and quasi-Newton methods are studied for unconstraint optimization method with the second order derivative. We will present an algorithm to minimize the calculation without losing advantages of stability. We see that it is not needed to compute Q for each iterative in decomposition process.

Models of Data envelopment analysis (DEA) can be partitioned in to two groups: radial and non-radial models. The performance of decision making units (DUMs) depends only on the identified efficient frontier characterized by efficient units. In the analytical framework of the radial efficiency measure, Russell measure is proposed, which is modeled by a non-linear programming formulation. This study develops the Russell measure of efficiency to measurement technical efficiency. This extensive of DEA models, is illustrated by an empirical application to bank branches.

This paper determines the progress and regress of a set of decision making units using outlier frontiers. Toward this end, we use tow types of models: ratio model (CCR model) and nonratio (SBM model of Tone).

In this paper we attempt to evaluate the performance of departments and faculties of a university by utilizing mathematical models to calculate Technical efficiency, Effectiveness and Cost Efficiency.

In This Research has been studied tracking moving object with filter Kalma. That is based on combination of the forground model in each pixel and Collection of mono hypothesis the background models, all of them are based on the size, position, speed and color distribution of the objects. In order to obtain estimating of object position,  filter Kalman combines  the  estimating  of  object position based on previous measurements  and the estimating  of object  position based  on current  measurements. This combination the minimum variance of obtaines, on the other hand, has the best accuracy. A comparable model of speed and side of normal moving is used for primer estimating of object speed. This model usually is an extensive Kalman filter.System works with video frame rate (between 24 and 40). Supposing that separatibility is enough and the size of the object is not greater than the size of object in primer measurement. In this study, two  models  are  investigating  that consist of  girl dancing and vehicles tracking and  autonomous conclusion  model is proposed, that An has got the factors of both models,with geting the first frame of  an  image  select  algorithm  tracking  related  to  that  image  based on  block diagram.

In this research, first of all, for a Manifold M, using scalar product of tangent space tmM witch we show it with gm, we introduce a lorentzian metric that is in the form of  g(m) = gm and endowes special features. Then, we call each lie group that has a left invariant lorentzian Metric with a lorentzian lie group. Therefore we represent a Modular function for a lie group and call a lie group with D  1 by an unimodular lie group and following we define an unimodular lie algebra, in the end we study that under isomorphism there are only six distinct three - dimensional unimodular lorentzian lie algebras and we deal with their introduction.