Category Archives: 2018 year

RATING MANAGEMENT OF RESOURCE ALLOCATIONSOFTWARE IN ORGANIZATIONAL SYSTEMSBASED ON EXPERT SELECTION OPTIMIZATION

UDC 681.3

B.A. Chernyshov, O.N. Choporov


Rational allocation of resources is one of the most urgent tasks of managing organizational social-and-economic systems. In this case, there is a need to compare objects based on quantifiable estimates. The integral characteristic of this assessment allows you to specify the rating of objects and can be used in rating management systems. The article considers an optimization approach to expert selection of resource allocation options when using rating management in organizational social-and-economic systems. It is shown that the sources of multivariance are: a variety of sets of indicators used for internal rating assessment, a variety of models for ordering objects of the organizational system by the value of the integral assessment, a variety of models for the distribution of resource provision. The optimization of the expert selection is proposed to be ensured by integrating methods of organizing group examinations, processing their results and selecting the final solution. Combining them in a single cycle of decision-making management within the computer meeting, a question/answer mode of the negotiation process was introduced, allowing to coordinate the opinions of a group of equivalent experts with the dominant one. The paper also justifies the final variant choice of resource allocation in the organizational system based on a combination of the majority and dictator principles.

Keywords: organizational system, rating management, resource support, group expertise, optimal choice.

Full text:
ChernyshovChoporov_3_18_1.pdf

DEFINITION OF THE COEFFICIENTS OF THE MATHEMATICAL MODEL OF QUALITY MANAGEMENT OF TRAINING BY THE METHOD OF LINEAR PROGRAMMING

UDC 519.72

V.I. Sumin, L.D. Kuznetsova, M.A. Lukin


This article examines the process of analyzing the level of quality of education in a higher educational institution. This problem was solved on the basis of using problem-oriented components of the educational process management system of the higher educational institution. To form problem-oriented components of the educational process management system of a higher educational institution, it is necessary to develop a model and algorithm for the process of making managerial decisions in it. Formalization and typification of educational information is carried out, which takes into account the time and indicators of the evaluation of the effectiveness of the quality management of training. Formed sets and sequence of a set of actions on the information that is used in the management of the quality of training. The processing time of elements of educational information in a higher educational institution is considered known on the grounds that it is regulated by normative documents. An evaluation of the duration of the step of taking managerial influences is determined on the basis of a certain set of procedures that in a certain sequence process the educational information of a higher educational institution. The coefficients of importance of the elements of providing information that determine the formation of managerial influence are determined. The procedures for providing information perform functions: determining parameters for a particular procedure, selecting and arranging the selected information, developing mathematical models. A mathematical formulation of the problem is defined in a general form, which allows us to formalize the task of optimizing the management impact, which is used in the management of the quality of instruction using the linear programming method.

Keywords: predicate, predicate significance, variable-valued logical function, logical neural network, cognitive map, cluster analysis, neural network.

Full text:
SuminSoavtori_3_18_1

THE INVESTIGATION OF ERROR-CORRECTING CODING OF THE VARIOUS FILES

UDC 681.3

E. I. Vorobyev, Y. P. Preobrazhenskiy


Problems related to the protection of information from interference are relevant in a variety of practical applications. The information itself can be text, graphic, contain video clips. Interference can be unintentional as well as specially created by cyber criminals. To process and transmit information in practice, various noise-resistant codes are used. The paper discusses the characteristics of some similar stakes: Hamming code, code, reed-Muller, BCH code Bose-Chowdhury-Hoquinghem. The results of comparison of characteristics-correcting codes are shown. An illustration of the encoded text and those bits that have been distorted. A graphical dependency is given to illustrate the dependence of the number of corrected errors on the number of errors that were added to the original message for the three selected codes. The results of studies of the characteristics of redundancy of codes with different files are shown. The BCH and reed-Muller codes were chosen for testing. Txt, midi, wmv and mpeg-2 files were analyzed. A table on the results of research, which shows how the file size, as well as its appearance, have an impact on redundancy. It is established that Hamming and reed-Muller code fix single errors well, BCH code is suitable for correcting various errors.

Keywords: : coding, information, correcting ability, error.

Full text:
VorobyevPreobrazhenskiy_4_18_1.pdf

OPTIMIZATION OF SCHEMES OF MEDICAL AND RECREATIONAL ACTIVITIES FOR CHRONIC OBLITERATING DISEASES OF ARTERIES OF THE LOWER EXTREMITIES USING THE THEORY OF MEASUREMENT OF LATENT VARIABLES

UDC 616.5-002.4

A.V.Bykov , N.A.Korenevsky , A.I.Kolesnik, T.N.Govorukhina


The aim of the proposed study is to increase the effectiveness of medical treatment activities of patients with chronic obliterating diseases of the arteries of the lower limbs, including their malignant development – critical ischemia of the lower limbs, due to the use of adequate mathematical methods. As an adequate mathematical apparatus, the theory of measuring latent variables with the G.Rush model is chosen, with the help of which hidden connections are established between known variables (indicator variables) and a variable that does not have an explicit analytic connection with indicator variables, but in relation to which, at a conceptual level, it is known , that such a connection can exist. This variable is called hidden or latent. From the point of view of the choice of the optimal schemes of medical and recreational activities, specific drugs, their dosage, rates and methods of administration, etc. serve as indicator variables, and the effectiveness of treatment as a latent variable. The evaluation of the effectiveness of medical and recreational activities selected at the expert level is provided by the interactive package RUMM 2020, which implements the model of G. Rush, which processes the initial statistical information that was formed during five years when observed by 400 patients of the Kursk Regional Clinical Hospital suffering from different stages of the HOZANK and receiving various treatment regimens. The effectiveness of the treatment measures was controlled by the change in the intensity of the pain syndrome in the lower limbs according to the author’s questionnaire.Using the RUMM 2020 package, it was found that, as effective drugs in the treatment of chronic obliterating diseases, it is advisable to use a combination of such drugs as alprostan, vesel-duf, fractiparin, actovegin, 6% reforming, pradax and ethoxidol. In the online mode of experts with the RUMM 2020 package for these drugs, the treatment regimens were refined and it was shown that the intensity of the pain syndrome, the effectiveness of treatment for newly received treatment regimens is increased by an average of 75%, which allows them to be recommended to the medical practice of vascular surgeons and angiologists.

Keywords: : chronic obliterating diseases of lower limbs, theory of latent variables measurement, optimal treatment regimens.

Full text:
BykovSoavtors_4_18_2.pdf

THE SIMULATION OF METAL-DIELECTRIC ANTENNA ON THE BASE OF COMBINED APPROACH

UDC 621.396

I. Y. Lvovich, A. P. Preobrazhenskiy, O. N. Choporov, E. Ruzhitsky


The structure of modern radio transmitting devices may include antennas formed of both metal and dielectric components-metal-dielectric antennas. They are compact enough and can be placed on various objects of equipment. The paper presents a simulation of a metal-dielectric antenna based on a combined approach. The scheme of antenna construction in different planes is given. The process of scattering of a plane electromagnetic wave on an antenna is considered. The combined algorithm including the method of the integral equation, parallel approach and genetic algorithm is developed. In this paper, the integral equation is used to determine the unknown surface electric currents on the antenna surface, it is solved on the basis of the method of moments. A parallel algorithm was used to speed up the calculations. The impedance matrix is represented as a block matrix. Each block has its own parallel stream. Taking into account the influence of a plane dielectric waveguide on the scattered field, a method associated with a generalized scattering matrix is used. To solve the problem of multi-alternative optimization associated with determining the linear dimensions of the antenna device at a given operating frequency of the antenna, a genetic algorithm is used. As a result, the dimensions of the designed antenna for the specified dimensions of its components are obtained.

Keywords: : antenna, integral equation, parallel approach, optimization, genetic algorithm.

Full text:
LvovichSoavtors_4_18_1.pdf

METHOD OF FORMING REQUIREMENTS TO THE CORRECTION SYSTEM OF THE INERTIAL NAVIGATION SYSTEM ON THE BASIS OF THE MULTIPARAMETER OPTIMIZATION PROBLEM SOLUTION

UDC 629.7.05

A.V. Sizov, S.V. Ippolitov, A.Y. Savchenko, V.A. Malyshev


The article proposes a method of forming the requirements for the correction system of the inertial navigation system based on the solution of multi-parameter optimization problem, which will justify the required values of navigation parameters for different types of aircraft systems in order to improve their combat effectiveness. The essence of this method is to select the required optimal values of indicators of the accuracy of navigation and the accuracy of correction, limited by regulatory and technical documentation and the resources of the computing environment on the one hand and the achievement of maximum combat effectiveness on the other hand. The obtained optimal values of the navigation accuracy parameters and the rate of increasing the error of the inertial navigation system coordinates number determine the frequency of inertial navigation system correction. The dependence of computing resources on the accuracy of correction is obtained on the basis of the revealed relationship between the navigation accuracy and the size of electronic terrain map. And on the basis of the revealed connection between the accuracy of correction and the number of sectors of the electronic terrain map, the dependence of computing resources on the accuracy of correction is obtained. The solution of the multiparameter optimization problem defined the relationship of the frequency of correction and the accuracy of navigation at a constant slew rate of the error number of coordinates. This solution allows to determine the optimal value of the navigation accuracy and the correction accuracy, providing maximum combat effectiveness.

Keywords: : inertial navigation system, optical-electronic system, electronic terrain map, optimization.

Full text:
SizovSoavtors_4_18_1.pdf

STRUCTURE OF THE TASKS OF MODELING, NUMERICAL METHODS AND SOFTWARE TOOLS OF OPTIMIZATION OF QUALITATIVE FUNCTIONING OF NETWORK OBJECTS IN MULTI-ASPECT ENVIRONMENT OF INFORMATION MONITORING

UDC 681.3

A.N. Schwindt


A characterization of the functioning of network objects in a multi-dimensional information monitoring environment is given. The main aspects of the evaluation of the quality of functioning in the conditions of digitalization are considered. The necessity of development of object-oriented methods of mathematical modeling and numerical optimization of the process under study is shown. The two-level nature of the orderliness of the elements of a multidimensional information monitoring environment and the possibility of their representation in the form of numeric sets are substantiated. The main classes of numeric sets transformations are given. The dependence of the majority of transformations on expert assessments in the interaction of the incorporation of network objects with the managing centre and consumers of the results of the operation are evaluated. The types of mathematical modeling and methods for their implementation that correspond to the transformations of the numeric sets: structural, statistical, expert-aggregation, expert-classification, expert-optimization are proposed. At the same time, expert optimization modeling is aimed at the sequential reduction of variants of qualitative functioning of network objects with the use of numerical methods of randomized search and expert evaluation.

Keywords: : network objects, high-quality functioning, information monitoring, numeric set, modeling, numerical optimization, expert evaluation.

Full text:
Schwindt_4_18_1.pdf

THE STUDY OF THE PROPERTIES OF COMMUNITIES OF PLAYERS AND FUNCTIONS OF WIN IN GAMES WITH NON-OPPOSING INTERESTS

UDC 519.83:519.81

T.V. Menshikh, V.I. Novoseltsev


When solving many applied problems, methods of game theory are used. In particular, when making management decisions, it is necessary to coordinate various aspects of decisions for which specialists in different fields are responsible. This leads to the need to use games with non-opposing interests and finding for them Nash equilibrium. The solution of this problem for the particular case of games with a hierarchical vector of interests is determined by the theorem of Germeyer and Vatel. However, in proving the theorem, a number of aspects were not taken into account. In particular, the conditions for constructing a hierarchical tree of groups of players are undefined and the properties of the functions of win for these groups are not fully described. In this paper, it is proposed to introduce the concepts of player goals and, on this basis, construct a structural-parametric model of a community of players, representing a fuzzy graph with a set of vertices corresponding to players, and arcs reflecting the coincidence of players’ goals. The weights of the arcs are determined by the membership functions of fuzzy sets describing the significance of goals for players. The colors of the arcs correspond to the goals of the players. After that, the concept of a color clique is introduced and an algorithm is developed for constructing the hierarchical structure of groups based on the successive finding of color cliques. Further, based on the analysis of the proof of the theorem of Germeyer and Vatel, it is shown that the function of win of a group of players must be continuous. The consequence of this is the exclusion of cases of using discrete (in particular, integer) resources.

Keywords: : games with non-opposite interests, Nash equilibrium, structural-parametric model of the community, hierarchical structure of groups of players, the utility function of a group of players.

Full text:
MenshikhNovoseltsev_4_18_1.pdf

THE PROBLEM OF THE SELECTION OF A NEURAL NETWORK MODEL FOR PREDICTING THE STREAMS OF DATA OF DISTRIBUTED INFORMATION SYSTEMS

UDC 004.7

V.O. Akopov, S.A. Sorokin, O.J. Kravets


The object of research in the work are distributed information systems, at the entrance of which comes a stream of requests that require the implementation of certain resources for their service. The subject of research is the prediction of data flows in such systems. The purpose of the work is to analyze the problem of choosing a neural network model for predicting the data flows of distributed information systems. The specificity of the studied problem is analyzed, as well as approaches to the solution based on the theory of queuing systems. The conclusion is drawn about the insufficient adequacy of such systems under conditions of a dynamic change of state. In this regard, it became necessary to develop their own specialized mathematical and algorithmic apparatus. As a result, an approach was proposed to reduce the sample size on the basis of combining the neural network model with a numerical method that takes into account the known regularities of the function and exempts the neural network from predicting these regularities. The specificity of the mathematical apparatus required the use of appropriate algorithmic support for its solution. Thus, the analysis of the problem of choosing a neural network model for predicting the data flows of distributed information systems was carried out.

Keywords: : distributed information systems, forecasting problem, neural networks, formalization.

Full text:
AkopovSoavtori_4_18_1.pdf

DETERMINATION OF RELIABILITY OF THE SOFTWARE IN STRUCTURE OF THE MODERN INFORMATION SYSTEM

UDC 004.052

A.V. Ponachugin


The subject of the study is the use of modern approaches to determine aimed at improving the reliability of software security measures and the quality of the information system. The object of the study is the model of determining the reliability of the software. The author considers in detail such aspects of the topic as: the use of a functional approach to the study of the reliability of the software component, which consists of the total achievement of the reliability of each functional unit; the use of a systematic approach to the study of software reliability in the structure of the information system. Particular attention is paid to the comparison of existing models and methods for determining reliability. The methods of improving the quality and reliability of the final result of software development, taking into account the allocation of functional blocks. The main conclusions of the study: the use of a systematic approach makes it possible to identify the qualities arising from the mutual relations between the components of the program, which determine modern ways to improve the reliability of software products. The author proposes to adapt the main system principles to improve the reliability of the software, proves the positive effect of their implementation. The novelty of the study lies in the joint use of functional and systemic approaches to identify ways to increase quality and reliability, which allows to take into account the features within the structural elements of the program and their interaction.

Keywords: : autotesting, reliability, software, system approach, functional approach, functional unit.

Full text:
Ponachugin_4_18_1.pdf