26 results on '"Optimization Problem"'
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2. Ризик-орієнтована модель об’єкта критичної інформаційної інфраструктури на основі топології зовнішніх зв’язків.
- Author
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Ковальчук, Л. В. and Неласа, Г. В.
- Abstract
The article considers the problem of reducing the losses caused by the implementation of threats to the topology of connections. Threats considered may relate to the integrity, confidentiality and availability of the information transmitted by the corresponding connection. At the same time, it is assumed that the amount of total funding allocated to protect against these threats is limited to a certain amount. This amount should be divided into parts, each of which will correspond to the financing of protection against a certain threat. A corresponding mathematical model was created to solve this problem. In this model, we make the reasonable assumption that the more funding is provided to protect against a threat, the less is the probability of its occuring. With this assumption, the problem is reduced to an optimization problem, which, generally speaking, cannot be solved by analytical methods. But for a small number of variables (up to 100 variables), this problem can be solved numerically using the tools of the Mathematica package. The article also provides the program code that implements the solution of this problem, and numerical examples of its solution using this code. [ABSTRACT FROM AUTHOR]
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- 2024
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3. ДЕЯКІ АСИМПТОТИЧНІ ВЛАСТИВОСТІ РОЗВ'ЯЗКІВ ТРИГАРМОНІЙНИХ РІВНЯНЬ.
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ШУТОВСЬКИЙ, А. М.
- Abstract
The author considers the optimization problem for the triharmonic equation in the presence of specific boundary conditions. As a result, the triharmonic Poisson integral was constructed in Cartesian coordinates for the upper half-plane. The asymptotic properties of this operator on Lipschitz classes in a uniform metric were studied. An exact equality was found for the upper bound of the deviation of the Lipschitz class functions from the triharmonic Poisson integral defined in Cartesian coordinates for the upper half-plane in the metric space. The results obtained in the article demonstrate the connection between the methods of approximation theory and the principles of optimal decision theory. [ABSTRACT FROM AUTHOR]
- Published
- 2024
4. ЩОДО МОЖЛИВОСТІ СТВОРЕННЯ ЕФЕКТИВНИХ СОНЯЧНИХ ЕЛЕКТРОСТАНЦІЙ НА ТЕРИТОРІЇ ПРОМИСЛОВИХ ПІДПРИЄМСТВ
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Ю. Г., Качан and О. А., Шрам
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The aim of the study is to develop a methodology and algorithm for determining the set of all possible variants for the placement of selected types of solar panels on the territory of industrial enterprises. The choice of locations for solar panels on the territory of industrial enterprises is complicated by the shape of the roofs of buildings with steep slopes and the significant impact of the shading effect on power generation, etc. The criteria for the optimal location of solar panels in the case under consideration may also vary. These are the maximum electricity generation of a solar power plant, the minimum fluctuations in its power during the day, the cost of generated electricity, etc. To solve such an optimization problem, it is proposed to first determine the set of all acceptable variants of the location of the selected types of solar panels at the allocated locations. Such a set can be represented as a branched graph, each branch of which is one of the possible options for the location of the panels. For this purpose, it is suggested to use an algorithm based on a recursive function, which is best suited for working with such structures. The article describes an example of the proposed algorithm for a variant with a specific number of available sites and types of solar panels used. As a result of the proposed algorithm, a matrix of sets of panel types and their locations is formed. The proposed methodology and algorithm for determining the array of all possible combinations of solar panel locations can significantly simplify the process of implementing a solar power plant at an industrial enterprise and significantly increase its efficiency. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Automation of Optimization Synthesis for Modular Technological Equipment
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Zaleta O. M., Povstyanoy O. Yu., Ribeiro L. F., Redko R. G., Bozhko T. Ye., and Chetverzhuk T. I.
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equipment structure ,optimization problem ,software ,industrialization ,innovation ,productivity ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Technological equipment design based on functionally modular methods is widely used in various technical fields. The designed object can be a technological machine, a production line, or a manufacturing complex. Special attention is paid to the optimization of its structure. The sequence of performing all stages of the optimization synthesis problem is presented in the article. To find a solution to this task, the developer should apply the complete or directed search of acceptable structure options and determine the best one using some optimization criteria to evaluate their quality. It can be simple enough if the designed technical system structure consists of no more than several elements. For example, if the number of alternative elements options is several dozen, it takes much time to accomplish the search correctly. Thus, the greater the number of components considered, the more difficult it is to do all the necessary calculations manually. In this case, machine resources should be involved. This scientific work aims to identify procedures of optimization synthesis that can be automated. Also, appropriate software has to be developed. Our computer program is based on the algorithm of a complete search of all options of the technical system structure. It can process an extensive array of input data and produce all possible and logically permissible results in the form the designer can analyze using the Pareto method to choose the best one. This software can be used for any technical system with a modular structure.
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- 2023
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6. Optimization Problems of Document Processing Management
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Yu.P. Laptin, T.O. Bardadym, and A.V. Lefterov
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document management ,cloud technology ,optimization problem ,Cybernetics ,Q300-390 - Abstract
Introduction. The use of various cloud services is becoming an integral part of modern life. At the same time, the owners of such services usually are not going to inform users with the theoretical foundations of the deployment and provision of these services, as well as with issues of security. On the other hand, as the above literature review shows, researchers often limit themselves to describing certain aspects of cloud technologies. The introduction of optimization approaches will contribute to both the development of the capabilities of providers and the rational use of resources by end users. The purpose of the article is to offer possible formulations of optimization problems that arise in the process of document management as in traditional or in cloud environment. Results. Three types of optimization problems arising in document management using cloud technologies are considered. The first is the problem of minimization of losses and expenses for ensuring the functioning of an information system, considered from the point of view of a user of cloud services. The services required by users that are provided by cloud technology providers are considered as resources consumed by users of cloud technology. The second problem is the two-level problem of creating new services. It is believed that the provider already has certain services that relate to the basic second (lower) level. They can be used both for direct provision to users, and for the formation of new services of the first (top) level, created at the request of users. Here the creation of new services requires additional expenses, and a provider has to minimize them. These expenses include costs of creating new top-level services, as well as costs of processing the necessary resources of the lower level by means of a new top-level service. In the third problem it is suggested possible formulations of optimization workflow problems that can be used both in traditional conditions and using cloud technologies. Conclusions. Created formulations of mathematical models can be used to improve document management, in particular to minimize costs in the relationships between the user of cloud technologies and the provider of relevant services. It is recommended to use modern software tools to solve the correspondent optimization problems.
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- 2020
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7. A METHOD FOR CHOOSING A STRATEGY FOR THE BEHAVIOR OF A CELLULAR AUTOMATON WHEN SOLVING THE PROBLEM OF FINDING TARGETS BY A GROUP OF MOVING OBJECTS
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Valerii Chystov, Iryna Zakharchenko, Vladislava Pavlenko, and Maksim Pavlenko
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cellular automaton ,path search ,optimization problem ,random search ,model ,Computer software ,QA76.75-76.765 ,Information theory ,Q350-390 - Abstract
Currently, a large number of different mathematical models and methods aimed at solving problems of multidimensional optimization and modeling of complex behavioral systems have been developed. One of the areas of search for solutions is the search for solutions in conditions of incomplete information and the need to take into account changing external factors. Often such problems are solved by the method of complete search. In some conditions, the method of complete search can be significantly improved through the implementation and use of behavioral models of natural formations. Examples of such formations can be group behavior of insects, birds, fish, various flocks, etc. The idea of copying group activity of a shoal of fishes at the decision of problems of joint activity on extraction of food is used in work. The reasoning based on the simulation of the behavior of such a natural object allowed to justify the choice as a mathematical model - cellular automata. The paper examines the key features of such a model. Modeling of his work is carried out, strategies of behavior of group of mobile objects at search of the purposes are developed, key characteristics are investigated and the method of adaptive choice of strategy and change of rules of behavior taking into account features of the solved problem is developed. The search strategy is implemented in the work, which takes into account the need to solve the optimization problem on two parameters. The obtained results testify to the high descriptive possibility of such an approach, the possibility of finding the optimal strategy for the behavior of the cellular automaton and the formalization of the process of selecting the parameters of its operation. A further improvement of this approach can be the implementation of simulation to study the properties of the developed model, the formation of the optimal set of rules and parameters of the machine for the whole set of tasks.
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- 2021
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8. Modification of the random search method
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S.I. Yaremchuk and O.A. Shupikov
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optimization problem ,linear programming ,boolean variables ,objective function ,optimal solution ,modification ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
The paper considers linear programming problems with Boolean variables. This is a part of mathematical programming focused on solving practical optimization problems, which could be solved and correctly described with a mathematical model of the problem of linear programming with Boolean variables. The discussed methods for exact and approximate solutions are constructed taking into account the features of these problems. The main focus of the article is the method of the random search. The main idea of this method is formulated and steps of the iterative process are described. Proposed modification of this method removes the conditions of non-negativity imposed on all coefficients of the problem. This modification makes it possible to apply the method for solving of a much larger number of linear programming problems with Boolean variables.
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- 2020
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9. Modeling of Resource Flows in the Region
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Volodymyr Proskura and Olena Maksiutova
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resources ,resource flows ,economic security of the region ,optimization problem ,Finance ,HG1-9999 - Abstract
The urgency of the topic of the study is obvious, since any structural changes taking place at the regional level have an impact on the nature of the flow of resources, on the level of social and economic development of the region, and, accordingly, on the level of its economic security. The lack of consistency between the strategic interests of the region and the partial interests of the owners of economic entities may ignore the latter's interests and weaken its economic security. Currently, the uncontrolled movement of resource flows, in particular migration of personnel and financial capital, which can lead to a disbalance of the reproductive system of a regional economy, presents a particular danger. In connection with this solution to the problem of modeling the resource streams of the region should be paid much more attention. The main purpose of the article is to develop scientific approaches to modeling resource flows of the region. In the article, the elements of the regional system have been considered as open subsystems, the functioning of which has a certain impact on regional development and is characterized by a large number of links based on the flow of resource flows. It has beeen noted that the resource flow is considered as a favorable flow of resources that has an impact on the development of the regional social and ecological and economic system. It has been proposed to consider regulation of resource flows of the region as a process that includes the formation, stimulation of movement in the necessary direction and the transformation of resources in the direction of ensuring economic and sustainable development of the region. It has been determined that the regulation of resource flows involves monitoring and outlines the principles in accordance with which resource flows should be coordinated, namely: systemic, complex, scientific, constructive, variability. As an alternative to solving the problem, the concept of «balance of balances» can be based on the modeling of the regional flows of resources, which involves balancing the processes of formation and use of the natural, demographic, human, economic and economic resources of the territory, which are united into one. The authors propose a dynamic model describing the state of the resource and the optimization problem of the formation of resource flows. In order to optimize the flow of resources in the region, it has been proposed to use the tasks of the transport type, and to predict the values of the indicators of resource availability of the region - models of time series and regression models with one equation. The developed model is based on the construction of the target function and the definition of the optimal size of resource support in terms of the objectives of the region. As the main goal of resource management in the region, maximum satisfaction of the constantly growing needs of the region has been considered
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- 2018
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10. DETERMINATION OF RAILWAY ROLLING STOCK OPTIMAL MOVEMENT MODES
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A. N. Petrenko, B. G. Liubarskiy, and V. E. Pliugin
- Subjects
electromotive railway rolling stock ,genetic algorithm ,cooling system ,traction motor ,tramcar ,control laws ,optimization problem ,efficiency ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
Purpose. To develop a methodology for simulating of an electromotive railway rolling stock in terms of power-optimal modes on a track with a given profile and a set motion graph. Methodology. We have used combined genetic algorithm to determine optimum modes of an electromotive railway rolling stock motion: a global search is performed by a genetic algorithm with a one-point crossover and roulette selection. At the final stage of the optimization procedure we have used Nelder-Mead method for the refinement of the optimum. Results. We have obtained that traction motor on a tramcar, while driving on a fixed site, has an excessive power of the cooling system. Its using only in the considered area allows to modernize the cooling system in the way of its power reducing, which in turn provides an opportunity to increase the overall efficiency of the electromotive railway rolling stock. Originality. For the first time, we have obtained the train motion equation in the program-oriented form. This allows to use it for determination of electromotive railway rolling stock optimal control laws according to the Hamilton-Jacobi-Bellman method. Practical value. We have made the computer program to determine optimum modes of an electromotive railway rolling stock motion. The experimental studies of program results for the track section have confirmed the adequacy of the model, which allows to solve the traffic modes optimization problem for the tram track sections and increase the overall efficiency of the electromotive railway rolling stock.
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- 2017
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11. Cloud calculations within the optional course Optimization Problems for 10th-11th graders
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Iryna V. Lovianova, Dmytro Ye. Bobyliev, and Aleksandr D. Uchitel
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optimization problem ,cloud calculation ,CoCalc ,Education - Abstract
The article deals with the problem of introducing cloud calculations into 10th–11th graders’ training to solve optimization problems in the context of the STEM-education concept. After analyzing existing programmes of optional courses on optimization problems, the programme of the optional course Optimization Problems has been developed and substantiated implying solution of problems by the cloud environment CoCalc. It is a routine calculating operation and not a mathematical model that is accentuated in the programme. It allows considering more problems which are close to reality without adapting the material while training 10th–11th graders. Besides, the mathematical apparatus of the course which is partially known to students as the knowledge acquired from such mathematics sections as the theory of probability, mathematical statistics, mathematical analysis and linear algebra is enough to master the suggested course. The developed course deals with a whole class of problems of conventional optimization which vary greatly. They can be associated with designing devices and technological processes, distributing limited resources and planning business functioning as well as with everyday problems of people. Devices, processes and situations to which a model of optimization problem is applied are called optimization problems. Optimization methods enable optimal solutions for mathematical models. The developed course is noted for building mathematical models and defining a method to be applied to finding an efficient solution.
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- 2019
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12. GEOMETRIC MODELING: TRACKS AND FLOWS
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математична модель ,accuracy ,construction norm and rule ,homotopy ,restriction ,обмеження ,норма і правило побудови ,topological parameter ,топологічний параметр ,гомотопія ,optimization problem ,mathematical model ,задача оптимізації ,точність - Abstract
Mathematical models to solve optimization connection problems in nonsimply connected regions under typical technological restrictions on geometric and topological parameters of routes, first of all, on curvature and the number of bends, have been investigated and developed. The models are linked with the extant and prospective topogeodesic models of the territory polygonal images. The solution of connection problems involves search for optimum trajectories of routes and nets within unrestricted geometric shape areas. It needs the development of a plethora of general models as fields where connections are carried out. The connections can be of various types such as bendy, Manhattan, even, solid as well as routes of other types. Smeliakov and Pliekhova observe that the global and local regulation of geometric connections to solve connection problems can be presented as the general optimization connection problem that is defined as the problem of the choice of с, where W is a set of alternatives, R is a principle of optimality. In so doing, the set W can be presented as the totality of the phase space f and the restrictions Q that are applied to the parameters of the phase space f. In turn, it is expedient to imagine that the phase space f is the Cartesian product f = X*Y*Z*U of the output data X, disturbances Y, control parameters U and results Z. The analysis of problem indicates that first and foremost the effectiveness of the modelling of the phase space f is linked with the description of the output data X on the area F and space L of possible highways in F. This research is devoted to the solution of the problem to develop a model for connection tasks within the framework of geometric design., Досліджено та розроблено математичні моделі для вирішення задач оптимізації з’єднання в неодносвязних областях за типових технологічних обмежень на геометричні та топологічні параметри трас, насамперед, на кривизну та кількість вигинів. Моделі пов'язані з існуючими та перспективними топогеодезичними моделями полігональних зображень територій. Розв'язання задач зв'язку передбачає пошук оптимальних траєкторій маршрутів і сіток у межах необмежених геометричних форм. Для цього потрібна розробка безлічі загальних моделей як полів, де здійснюються зв’язки. Сполучення можуть бути різних типів, таких як гнучкі, манхеттенські, рівні, тверді, а також маршрути інших типів. Смеляков та Алісейко (Плєхова Г. А.) зауважують, що глобальне та локальне регулювання геометричних зв’язків для розв’язання задач зв’язків можна представити як загальну оптимізаційну задачу зв’язку, яка визначається як задача вибору < , R >, де R – набір альтернатив, – принцип оптимальності. При цьому набір можна представити як сукупність фазового простору та обмежень Q, які застосовуються до параметрів фазового простору . У свою чергу, доцільно уявити, що фазовий простір є декартовим добутком = X*Y*Z*U вихідних даних X, збурень Y, параметрів керування U та результатів Z. Аналіз задачі свідчить про те, що насамперед ефективність моделювання фазового простору пов'язана з описом вихідних даних X про площу F і простір L можливих магістралей в F. Питання досліджується як розробка побудови структур моделей та методології їх використання, які б уможливили конструктивне та ефективне (в обчислювальній техніці) моделювання та дослідження різноманітних моделей та алгоритмів, які зберігають геометричність та інваріантність моделей, які необхідні для їх конкретного використання в умовах прийнятності використання різних вихідних структур даних. Дане дослідження присвячене розв’язанню задачі розробки моделі для задач зв’язку в рамках геометричного проектування.
- Published
- 2023
13. МАТЕМАТИЧНА МОДЕЛЬ ОБГРУНТУВАННЯ ОПТИМАЛЬНОГО БОЙОВОГО СКЛАДУ ЗБРОЙНИХ СИЛ ДЕРЖАВИ З ПОЗИЦІЙ ТЕОРІЇ ВІДВЕРНЕНОГО ЗБИТКУ ТА З УРАХУВАННЯМ ЕКОНОМІЧНИХ ЧИННИКІВ
- Author
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МОЖЛРОВСЬКИЙ, B. M. and годзь, С. В.
- Abstract
Copyright of Cybernetics & Systems Analysis / Kibernetiki i Sistemnyj Analiz is the property of V.M. Glushkov Institute of Cybernetics of NAS of Ukraine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
14. STATEMENT OF THE OPTIMIZATION PROBLEM OF CARBON PRODUCTS PRODUCTION
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O. A. Zhuchenko
- Subjects
Carbon products ,optimization problem ,optimization criterion ,cost ,energy consumption ,product quality ,Automation ,T59.5 - Abstract
The paper formulated optimization problem formulation production of carbon products. The analysis of technical and economic parameters that can be used to optimize the production of carbonaceous products had been done by the author. To evaluate the efficiency of the energy-intensive production uses several technical and economic indicators. In particular, the specific cost, productivity, income and profitability of production. Based on a detailed analysis had been formulated optimality criterion that takes into account the technological components of profitability. The components in detail the criteria and the proposed method of calculating non-trivial, one of them - the production cost of each product. When solving the optimization problem of technological modes of production into account constraints on the variables are optimized. Thus, restrictions may be expressed on the number of each product produced. Have been formulated the method of calculating the cost per unit of product. Attention is paid to the quality indices of finished products as an additional constraint in the optimization problem. As a result have been formulated the general problem of optimizing the production of carbon products, which includes the optimality criterion and restrictions.
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- 2016
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15. Modeling of routes with restrictions on topological and geometrical parameters
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Levterov, A.I., Pliekhova, A.A., Kostikova, М.V., and Berezhna, N.G.
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building codes and rules ,accuracy ,homotopy ,optimization problem ,constraints ,mathematical model ,topological parameters - Abstract
Mathematical models for solving optimization problems of connection in non-simply connected domains with typical technological constraints on the geometric and topological parameters of the routes, first of all, on the curvature and the number of kinks, are considered and developed. These models are combined with existing and prospective topogeodetic models of the polygonal image of territories. The solution of connection problems is associated with the search for optimal trajectories of traces and networks in sections of free geometric shape, which requires the development of fairly general models as areas in which these connections are realized. These can be junction types such as polyline, Manhattan, smooth, solid, and other types of traces. As shown in the works of SmelyakovS.V. and Aliseyko A.A. (PlekhovaA.A.) global and local regularization of geometric constructions in solving connection problems [1], the general optimization problem of connections can be formulated as the problem of choosing , where – is a set of alternatives, and is the optimality principle. In this case, the set – can be represented as a set of of the phase space and the constraints imposed on the parameters of the phase space . In turn, the phase space is expedient to represent the Cartesian product of the initial data , disturbances , control parameters and results . As the analysis of the problem [1] shows, the efficiency of modeling the phase space is primarily related to the description of the initial data in the section and the space of admissible traces in . This issue is considered as the development of the construction of the structure of models and the methodology of their use, which allows the possibility of constructive and efficient (computationally) construction and enumeration of various models and algorithms that preserve the geometric invariance of the models required for a specific use under the conditions of admissibility of using various structures of the initial data. This work is devoted to solving the problem of creating such a model within the boundaries of geometric design for connection problems.
- Published
- 2022
- Full Text
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16. Methods of Determination of Optimal Points of Radio Monitoring Means Placement
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Serhii Dupelych, Dmytro Yakymets, Oleksandr Zhantalai, and Viktor Bovsunovskyi
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Optimization problem ,Correctness ,засоби радіомоніторингу ,LСC Subject Category: TL500-777 ,розміщення об’єктів ,Computer science ,media_common.quotation_subject ,Science ,Real-time computing ,Terrain ,Interference (wave propagation) ,Technics ,Geometric design ,location of objects ,means of radio monitoring ,Quality (business) ,Function (engineering) ,Adaptation (computer science) ,media_common - Abstract
The effectiveness of the radio monitoring system depends on the correctness of determining the coordinates of the location of radio monitoring tools at the stage of planning their application. The decision on the choice of position for radio monitoring should consider the heterogeneity of the terrain in the area of tasks, the presence of natural and electronic interference, which can lead to deterioration of conditions for receiving signals from radio sources. The use of the known methods, techniques, and algorithms for the placement of radio monitoring tools does not fully consider the requirements mentioned above. This leads to a decrease in the effectiveness of radio monitoring in a particular area of performance. Therefore, the purpose of this article is to develop a methodology for spatial placement of radio monitoring to ensure the effectiveness of radio monitoring in a particular area of tasks, taking into account the heterogeneity of the terrain, as well as natural and artificial electronic interference. Determining the coordinates of radio monitoring facilities included in the radio monitoring system involves determining the allowable options for their placement in a particular area of tasks using the mathematical apparatus of the dense placement function and its hodograph and further thinning of the matrix of acceptable solutions based on restrictions. A distinctive feature of the proposed approach is the optimization problem of geometric design for radio monitoring of complex spatial forms. At the same time, the peculiarities of completing the radio monitoring system using different types are also taken into account. It is expedient to use the developed technique for the planning of application of the system of radio monitoring; formation of working decisions on the construction of the radio monitoring system; assessing the quality of decisions and the formation of alternatives; ensuring the adaptation of the structure of the radio monitoring system to changes in the situation under the influence of the enemy and the formation of new zones of electronic interference., Ефективність функціонування системи радіомоніторингу залежить від правильності визначення координат розміщення засобів радіомоніторингу на етапі планування їх застосування. При цьому рішення щодо вибору позиції для розміщення засобів радіомоніторингу повинно враховувати неоднорідність рельєфу місцевості в районі виконання завдань, наявність природних перешкод і радіоелектронних завад, які можуть призводити до погіршення умов прийому сигналів від джерел радіовипромінювань. Використання відомих методів, методик і алгоритмів розміщення засобів радіомоніторингу не дозволяє повною мірою враховувати зазначені вище вимоги. Це призводить до зниження ефективності застосування засобів радіомоніторингу у визначеному районі виконання завдань. Тому метою даної статті є розроблення методики просторового розміщення засобів радіомоніторингу для забезпечення підвищення ефективності ведення радіомоніторингу у визначеному районі виконання завдань з урахуванням неоднорідностей рельєфу місцевості, а також природних і штучних радіоелектронних завад. Визначення координат розміщення засобів радіомоніторингу, включених до складу системи радіомоніторингу, передбачає визначення допустимих варіантів їх розміщення у визначеному районі виконання завдань з використанням математичного апарату функції щільного розміщення та її годографу та подальшого прорідження матриці допустимих рішень на основі встановлених обмежень. Відмінною рисою запропонованого підходу є розв’язання оптимізаційної задачі геометричного проектування для областей радіомоніторингу складних просторових форм. Разом із цим, також враховуються особливості комплектування системи радіомоніторингу засобами різних типів.Розроблену методику доцільно використовувати для планування застосування системи радіомоніторингу; формування робочих рішень щодо побудови системи радіомоніторингу; оцінювання якості прийнятих рішень і формування альтернативних варіантів; забезпечення адаптації структури системи радіомоніторингу до змін обстановки в умовах впливу противника та утворення нових зон радіоелектронних завад.
- Published
- 2021
17. ЗАДАЧА ОПТИМАЛЬНОГО УПРАВЛІННЯ ПАКЕТАМИ ІНВЕСТИЦІЙНИХ ПРОЕКТІВ
- Author
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Кирилова, Л. О. and Мамонтова, І. В.
- Abstract
The economic and mathematical model of the problem of management optimization of production’s investment packages has been built. Model provides the maximum efficiency of all package with the assigned limitation to its risk at each time point. This allows you to calculate the optimal sizes of these tranches and allow you to make administrative decisions based on results of these calculations for management progress of the investments. The result has been illustrated on example of real investment projects. [ABSTRACT FROM AUTHOR]
- Published
- 2015
18. Збіжність методу операторної екстраполяції
- Author
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Vladimir V. Semenov, O.S. Kharkov, and D.S. Siryk
- Subjects
symbols.namesake ,Operator (computer programming) ,Optimization problem ,Weak convergence ,Computer science ,Variational inequality ,Feasible region ,Hilbert space ,symbols ,Applied mathematics ,Інформатика та кібернетика ,Bregman divergence ,Lipschitz continuity - Abstract
Одним з популярних напрямів сучасного прикладного нелінійного аналізу є дослідження варіаційних нерівностей та розробка методів апроксимації їх розв’язків. Багато актуальних проблем дослідження операцій, оптимального керування та математичної фізики можуть бути записані у формі варіаційних нерівностей. Негладкі задачі оптимізації можна ефективно розв’язувати, якщо їх переформулювати як сідлові задачі, а до останніх застосувати сучасні наближені алгоритми розв’язання варіаційних нерівностей. З появою генеруючих змагальних нейронних мереж (generative adversarial network, GAN) стійкий інтерес до застосування та дослідження ітераційних алгоритмів розв’язання варіаційних нерівностей виник і в середовищі фахівців в галузі машинного навчання. Дана робота присвячена дослідженню двох нових наближених алгоритмів з брегманівською проєкцією для розв’язання варіаційних нерівностей в гільбертовому просторі. Перший алгоритм, який ми називаємо алгоритмом операторної екстраполяції, отриманий заміною в методі Маліцького—Тама евклідової метрики на дивергенцію Брегмана. Привабливою рисою алгоритму є всього одне обчислення на ітераційному кроці проєкції Брегмана на допустиму множину. Другий алгоритм є адаптивним варіантом першого, де використовується правило поновлення величини кроку, що не вимагає знання ліпшицевих констант і обчислень значень оператора в додаткових точках. Для варіаційних нерівностей з псевдомонотонними, ліпшицевими та секвенційно слабко неперервними операторами, що діють в гільбертовому просторі, доведені теореми про слабку збіжність методів. One of the popular areas of the modern applied nonlinear analysis is the study of variational inequalities and the development of methods for approximating their solutions. Many important problems of the research of operations, optimal control theory, and mathematical physics can be written in the form of variational inequalities. Non-smooth optimization problems can be solved effectively, if they are reformulated as saddle problems, and modern approximate algorithms for solving the variational inequalities are applied to the obtained saddle problems. With the advent of generating adversarial neural networks (GANs), the strong interest in the use and investigation of iterative algorithms for solving the variational inequalities arose in the ML-community. This paper is devoted to the study of two new approximate algorithms with the Bregman projection for solving the variational inequalities in a Hilbert space. The first algorithm, which we call the operator extrapolation algorithm, is obtained by replacing the Euclidean metric in the Malitsky–Tam method with the Bregman divergence. An attractive feature of the algorithm is only one computation at the iterative step of the Bregman projection onto the feasible set. The second algorithm is an adaptive version of the first, where the used rule for updating the step size does not require knowledge of Lipschitz constants and the calculation of operator values at additional points. For variational inequalities with pseudo-monotone, Lipschitz-continuous, and sequentially weakly continuous operators acting in a Hilbert space, some weak convergence theorems are proved.
- Published
- 2021
19. AN OPTIMAL TWO-STAGE ALLOCATION OF MATERIAL FLOWS IN A TRANSPORT-LOGISTIC SYSTEM WITH CONTINUOUSLY DISTRIBUTED RESOURCE
- Author
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L. S. Koriashkina, O. D. Stanina, and S. A. Us
- Subjects
Set (abstract data type) ,Mathematical optimization ,Optimization problem ,Resource (project management) ,Correctness ,Linear programming ,Process (engineering) ,Computer science ,Iterative method ,multi-stage transport and logistics systems ,continuously distributed resource ,optimal partitioning of sets ,continuous location-allocation problems ,General Medicine ,Full cycle - Abstract
Context. The object of the research is a two-stage process of material flows allocation in the transport-logistic system, the structural elements of which are enterprises that collect a resource, is been distributed in a certain territory (centers of the first stage), and the enterprises that consume or process this resource. A mathematical model of such process is a two-stage problem of the optimal partitioning of a continual set with the locating of subset centers under additional constraints presented in the paper. Objective. The goal of the work is to ensure the reduction of transport costs in the organization of multi-stage production, the raw material resource of which is distributed in some territory, through the development of appropriate mathematical apparatus and software. The urgency of the work is explained by one of the most pronounced tendencies in extracting and processing branches of industry and agriculture, namely, the creation of territorially-distributed multilevel companies that include dozens of large enterprises and carry out a full cycle of production from raw material harvesting with its integrated use and the product manufacturing to its transportation to end consumers. Method. Mathematical apparatus for two-stage problems of optimal partitioning of sets with additional couplings was developed using the basic concepts of the theory of continuous linear problems of optimal set partitioning, duality theory, and methods for solving linear programming problems of transport type. The research shows that the formulation of a multi-stage transport-logistic problem in a continuous variant (in the form of an infinite-dimensional optimization problem) is expedient when the number of resource suppliers is limited but very large. The application of the developed mathematical apparatus makes it possible to find the optimal solution of the two-stage allocation-distribution problem in an analytic form (the analytic expression includes parameters that are the optimal solution of the auxiliary finite-dimensional optimization problem with a nondifferentiable objective function). The proposed iterative algorithm for solving the formulated problem bases on modification of Shor’s r-algorithm and the method of potentials for solving the transport problem. Results. Developed mathematical models, methods and algorithms for solving continuous multi-stage problems for locating enterprises with a continuously distributed resource can be used to solve a wide class of continuous linear location-allocation problems. The presented methods, algorithms and software allow solving several practical problems connected, for example, with the strategic planning in the production, social and economic fields. The theoretical results obtained are been brought to the level of specific recommendations that can be used by state-owned and private enterprises in solving logistics tasks related to the organization of collection of a certain resource and its delivery to processing points, as well as further transportation of the product received to places of destination. Conclusions. The results of the computational experiments testify to the correctness of the developed algorithms operation for solving two-stage optimal set partitioning problems with additional couplings. Furthermore, it is confirmed the feasibility of formulating such problems when it is necessary to determine the location of new objects in a given territory, considering the multistage raw material resource distribution process. Further research is subject to the theoretical justification of the convergence of the iterative process realized in the proposed algorithm for solving continuous problems of OPS with additional couplings. In future, the development of software to solve such problems with the involvement of GIS-technologies is planned.
- Published
- 2019
20. ПРИМЕНЕНИЕ АЛГОРИТМА ОПТИМИЗАЦИИ РОЕМ ЧАСТИЦ ДЛЯ МИНИМИЗАЦИИ СТОИМОСТИ ПРОВЕДЕНИЯ МНОГОФАКТОРНОГО ЭКСПЕРИМЕНТА
- Author
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N. D. Koshevoy and A. A. Beliaieva
- Subjects
education.field_of_study ,Optimization problem ,Computer science ,Design of experiments ,Population ,Particle swarm optimization ,Context (language use) ,General Medicine ,метод ,оптимизация ,рой частиц ,планирование эксперимента ,стоимость ,оптимальный план ,Matrix (mathematics) ,method optimization ,swarm particle ,experimental design ,cost ,optimal plan ,Particle ,Point (geometry) ,education ,Algorithm - Abstract
Актуальность. Решена актуальная задача получения последовательности опытов при проведении полного факторного эксперимента, обеспечивающей его минимальную стоимость.Цель работы – создание метода для оптимизации многофакторных планов эксперимента с помощью алгоритма оптимизациироем частиц.Метод. Предложен метод построения оптимальной матрицы планирования эксперимента по стоимости реализации с использова-нием алгоритма роя частиц. Метод роя частиц базируется на моделировании поведения популяции частиц в пространстве параметров задачи оптимизации. Вначале вводится количество факторов и стоимость перехода для каждого уровня факторов. Затем с учетом введенных данных формируется сводная матрица планирования эксперимента. Частицы разбросаны случайным образом по всей сводной матрице планирования эксперимента, и каждая частица имеет случайный вектор скорости. После этого частицы начинают перемещаться по строкам и столбцам матрицы. В каждой точке, где побывала частица, рассчитывается значение стоимости проведения эксперимента. При этом каждая частица запоминает, какое (и где) лучшее значение стоимости эксперимента она лично нашла и где расположена точка, являющаяся лучшей среди всех точек, которые разведали частицы. На каждой итерации частицы корректируют свою скорость (модуль и направление), чтобы с одной стороны быть поближе к лучшей точке, которую она нашла сама и, в то же время, приблизиться к точке, которая в данный момент является глобально лучшей. Через некоторое количество итераций частицы собираются вблизи наиболее хорошей точки. Затем корректируется текущая координата каждой частицы. После этого рассчитывается значение стоимости проведения эксперимента в каждой новой точке, каждая частица проверяет, не стала ли новая координата лучшей среди всех точек, где она побывала. Затем среди всех новых точек осуществляется проверка, не нашли ли мы новую глобально лучшую точку, и, если нашли, запоминаем ее координаты и значение стоимости проведения эксперимента в ней. Затем рассчитывается выигрыш по сравнению с исходной стоимостью проведения эксперимента. Результаты. Разработано программное обеспечение, реализующее предложенный метод, которое использовано при проведениивычислительных экспериментов по исследованию свойств метода.Выводы. Проведенные эксперименты подтвердили работоспособность предложенного метода и реализующего его программногообеспечения, а также позволяют рекомендовать их для применения на практике при построении оптимальных матриц планированияэкспериментов., Context. The actual problem of obtaining a sequence of experiments in the conduct of a full factor experiment ensuring its minimum costhas been solved.Objective – is to create a method for optimizing multifactor experimental plans using an optimization algorithm for the particle swarm.Method. A method is proposed for constructing an optimal experiment design matrix for the cost of implementation using the particleswarm algorithm. The particle swarm method is based on modeling the behavior of the particle population in the parameter space of theoptimization problem. In the beginning, the number of factors and the cost of the transition for each level of factors are introduced. Then,taking into account the input data, a composite matrix of experiment planning is formed. The particles are scattered randomly across theentire composite experiment design matrix and each particle has a random velocity vector. After that, the particles begin to move along therows and columns of the matrix. At each point where the particle visited, the value of the experiment is calculated. In this case, each particleremembers which (and where) the best value of the cost of the experiment, she personally found and where the point is located, which is the best among all the points that explored the particles. At each iteration, the particles correct their velocity (module and direction) in order to be closer to the best point on the one hand, which she found herself and, at the same time, to approach the point that is currently globallybetter. After a certain number of iterations, the particles are collected near the best point. Then the current coordinate of each particle iscorrected. After this, the cost of the experiment is calculated at each new point, each particle checks whether the new coordinate has becomethe best among all the points where it visited. Then, among all the new points, we check whether we have found a new globally better point,and if found, remember its coordinates and the value of the cost of conducting the experiment in it. Then the gain is calculated in comparisonwith the initial cost of the experiment.Results. The software that implements the proposed method is developed, which was used in carrying out computational experiments tostudy the properties of the method.Conclusions. The conducted experiments confirmed the efficiency of the proposed method and the software that implements it, and alsoallow them to be recommended for application in practice when constructing optimal experimental design matrices.
- Published
- 2018
21. Інформаційна технологія аналізу структури сівозмін в системі організації землекористування за різними формами земельної власності в Україні
- Author
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Попенко, Володимир Дмитрович
- Subjects
коефіцієнт дисконтування ,crop capacity prediction ,сівозміна ,прогнозування врожайності ,334.021 ,forms of the land properties ,повний перебір ,brute force ,лінійна регресія ,crop rotation ,linear regression ,optimization problem ,задача оптимізації ,форми власності на землю ,discounting coefficient - Abstract
Магістерська дисертація: 86 с., 20 рис., 20 табл., 1 додаток, 31 джерело. Актуальність. Питання впровадження в Україні повноцінного ринку землі є сьогодні предметом гострих політичних дискусій як серед народних депутатів, так і серед звичайних громадян. В той же час відчувається брак економічного обґрунтування того чи іншого рішення, підкріпленого математичним розрахунком. Проблема деградації ґрунтів набула всесвітнього масштабу. Це викликало стурбованість міжнародної спільноти і укладення Конвенцію ООН для боротьби з опустелюванням (UNCCD), яку ратифікували майже 200 країн світу [1]. В той же час вплив форм власності на землю на проблему деградації ґрунтів виглядає як недостатньо усвідомлений. Зв'язок роботи з науковими програмами, планами, темами. Робота виконувалась на кафедрі автоматизованих систем обробки інформації та управління Національного технічного університету України «Київський політехнічний інститут ім. Ігоря Сікорського» в рамках теми «Дослідження впливу форм власності на економічну поведінку суб’єктів господарювання». Мета дослідження – обґрунтувати переваги приватної власності на землю, у порівнянні із орендою, шляхом порівняння поведінки суб'єктів господарювання, задля збереження продуктивності земельних ресурсів в Україні. Для досягнення мети необхідно виконати наступні завдання: виконати огляд існуючих сучасних методів максимізації прибутку з полів; формалізувати задачу побудови сівозмін для двох випадків; визначити метод прогнозування; спрогнозувати дані для розрахунків; провести розрахунки для порівняння прибутків; виконати аналіз отриманих результатів. Об’єкт дослідження – процес побудови сівозмін на обмежений та необмежений проміжок часу. Предмет дослідження – стратегії поведінки користувачів землею, в залежності від їх форми власності. Методи дослідження, застосовані у даній роботі, базуються на методах оптимізації та прогнозування. Наукова новизна одержаних результатів полягає у побудові моделей оптимізації сівозмін користувачів різних форм власності на землю та проведенні розрахунків, враховуючи прогнозування урожайності агрокультур. Публікації. Троцюк А.Р., Попенко В.Д. Дослідження стратегій поведінки землекористувачів у сільськогосподарському виробництві залежно від форм власності на землю / Інформатика та обчислювальна техніка – ІОТ-2018. – С. 79-81. Троцюк А.Р., Попенко В.Д. Аналіз структури сівозмін за різними формами земельної власності в Україні / Всеукраїнська науково-практична конференція молодих вчених та студентів «Інформаційні системи та технології управління» (ІСТУ-2018) – м. Київ.: НТУУ «КПІ ім. Ігоря Сікорського», 29-30 грудня 2018 р. Master's dissertation: 86 p., 20 figures, 20 tables, 1 supplement, 31 sources. Topicality. The question of the introduction of a full-fledged land market in Ukraine is now the subject of sharp political discussions both among people's deputies and among ordinary citizens. At the same time, there is a lack of economic substantiation of a decision, supported by mathematical calculation. The problem of soil degradation has become world-wide. This was a concern of the international community and the UN Convention to Combat Desertification (UNCCD), which was ratified by almost 200 countries of the world [1]. At the same time, the effect of land ownership forms on the problem of soil degradation seems to be not well understood. Relationship of work with scientific programs, plans, themes. The work was carried out at the Department of Computer-Aided Management and Data Processing Systems of the National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» within the framework of the topic «Investigation of the influence of ownership forms on the economic behavior of business entities». The purpose of the research is to substantiate the advantages of private ownership of land, in comparison with the lease, by comparing the behavior of business entities, in order to maintain the productivity of land resources in Ukraine. To achieve the goal, you must accomplish the following tasks: carry out an overview of existing modern methods of maximizing profits from the fields; formalize the task of building crop rotation for two cases; to determine the forecasting method; predict data for calculations; make calculations for comparing profits; perform the analysis of the obtained results. The object of research - the process of building crop rotation for a limited and unlimited time interval. Subject of research - user behavior strategies, depending on their ownership. The research methods used in this paper are based on optimization and forecasting methods. The scientific novelty of the obtained results consists in the construction of models for optimizing the crop rotation of users of various forms of ownership of land and conducting calculations, taking into account the forecasting of agricultural crop yields.
- Published
- 2018
22. NEW STATEMENT OF CONCRETE STUDIES OPTIMIZATION PROBLEMS
- Author
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Chuang Wang, Guoqing Jing, Valery Kondrashchenko, Anna Yerokhina, and Еlena Kondrashchenko
- Subjects
Optimization problem ,диференційований і інтегрований підхід ,оптимізаційні завдання бетонознавства ,рецептурно-технологічні параметри ,Operations research ,Computer science ,Statement (logic) ,дифференцированный и интегрированный подход ,оптимизационные задачи бетоноведения ,рецептурно-технологические параметры ,General Medicine ,a differentiated and integrated approach ,concrete studies optimization problems ,prescription technological parameter ,691.328 - Abstract
Запропоновано інтегрований підхід до призначення рецептури будівельних композитів, який передбачає оптимізацію рецептурно-технологічних параметрів отримання будівельних матеріалів і виробів за комплексом вимог, що висуваються не тільки до властивостей матеріалу і технологічних параметрів їх виготовлення, але і до властивостей самої конструкції, для виготовлення якої цей матеріал призначений., Civil engineering people differentiate between «process» and «design» approaches toproblem solution. In the former case process engineers assign composition and process parameterswithout due consideration of material working terms in structure, whereas in the latter casedesigners calculate articles issuing from material normalized characteristics, without dueconsideration of its composition and manufacturing peculiarities of articles. Such an approach tosolution of civil engineering problems may be called differentiated. On the contrary, integratedapproach presupposes determination of composition and process parameters issuing from theintegrity of requirements not only to material properties with due consideration of articlemanufacturing process, but to the properties of structure to making of which the material isintended. We formulated the problem of concrete mix formulating optimization issuing from acomplex of requirements to concrete mix properties, article manufacturing process, as well as ofconsumption proportioning of concrete mix components, structure dimensions and itsreinforcement. It is emphasized that the integrated approach meets the moist efficient solution of thebackbone problem of building materials science – obtaining building materials and articles withprescribed set of properties under optimal expense of feed materials and utilities, Предложен интегрированный подход к назначению рецептуры строительныхкомпозитов, который предусматривает оптимизацию рецептурно-технологическихпараметров получения строительных материалов и изделий по комплексу требований,предъявляемых не только к свойствам материала и технологическим параметрам ихизготовления, но и к свойствам самой конструкции, для изготовления которой этотматериал предназначен
- Published
- 2017
23. Аналіз системи масового обслуговування АПК методом математичного моделювання (на прикладі доїльних установок)
- Author
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Vodyanitsky, G., Mamchur, V., and Slusarenko, I.
- Subjects
вероятность ,математична модель ,щільність потоку ,математическая модель ,оптимизационная задача ,доїльна установка ,probability ,оптимізаційна задача ,доильная установка ,ймовірність ,milking machine ,flux density ,optimization problem ,mathematical model ,плотность потока - Abstract
Виконане дослідження є застосування математики в питаннях створення та удосконалення технологічної системи. Особливістю механізованих технологічних процесів є їх стохастичність, описування та розрахунок, а отже і використання найчастіше методів теорії ймовірностей. Невелика частина процесів у АПК з достатньою точністю описують детермінованими математичними залежностями. Авторами використано об'єкт агропромислового виробництва, зокрема процес машинного доїння корів, який є ймовірністним, та застосована для його моделювання і розрахунків теорія масового обслуговування. Результатами є дослідження роботи системи масового обслуговування – доїльних установок вітчизняного виробництва, використання математики для оптимізації технологічних систем агропромислового виробництва., A study of the use of mathematics in the creation and improvement of the technological system. A special feature of the mechanized processes is stochastics, description and calculation of these processes, often, using the methods of probability theory. A small part of the process of agricultural production with sufficient accuracy describes the deterministic mathematical relations. The authors used the object of agricultural production, in particular, the process of machine milking cows, which is probabilistic, so it is used for modeling and calculation of queuing theory. The results of a study of the work queuing system milking machines of domestic production, the use of mathematics to optimize the technological systems of agricultural production., Проведено исследование использования математики в вопросах создания и усовершенствования технологической системы. Особенностью механизированных технологических процессов есть стохастичность, описание и их расчет, чаще всего, с использованием методов теории вероятностей. Небольшая часть процессов агропромышленного производства с достаточной точностью описываются детерминированными математическими зависимостями. Авторами использован объект агропромышленного производства, в частности, процесс машинного доения коров, который является вероятностным, поэтому использована для его моделирования и расчетов теория массового обслуживания. Результатами является исследование работы системы массового обслуживания доильных установок отечественного производства, использование математики для оптимизации технологических систем агропромышленного производства.
- Published
- 2016
24. АЛГОРИТМ РЕШЕНИЯ ЗАДАЧИ ОПТИМИЗАЦИИ ДЛЯ ЦИКЛИЧЕСКИХ РАСПИСАНИЙ С ПРЕРЫВАНИЯМИ
- Author
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Y.A. Ivanov
- Subjects
Continuous optimization ,Mathematical optimization ,Schedule ,discrete optimization, branch and bound, an algorithm ,Optimization problem ,Branch and bound ,Computer science ,Discrete optimization ,Derivative-free optimization ,General Medicine ,Multi-swarm optimization ,Branch and cut ,Algorithm - Abstract
Анотація, In this paper, we consider a model of the problem to determine the characteristics of the time-step computation process in hard real-time systems. We proposed a formal description of the timestep computation with preemption and its existence conditions. A necessary condition for the feasibility of the schedule was determined. We took into account the behavior of the function graphs to optimize the schedule. We analyzed the mathematical model features including the objective function and the constraints. In the paper we determined the upper and lower limits of total function variation. The possible approaches to solving the optimization problem were introduced. We proposed to solve that task by the branch and bound method. In the proposed approach the objective function is represented as the set or branches included in the method tree. We developed the algorithm to determine characteristics of the time-step computation process and give a detailed description. The performance of the algorithm was shown by test case.
- Published
- 2013
25. Новітні методи і прийоми навчання математичного моделювання та дослідження організації виробництва
- Author
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Korniichuk, O.
- Subjects
mathematic modelling ,системи комп’ютерної математики ,задача оптимизации ,decision-making ,математичне моделювання ,принятие решения ,прийняття рішення ,исследование операций ,optimization problem ,systems of computer mathematics ,дослідження операцій ,задача оптимізації ,системы компьютерной математики ,operations research ,математическое моделирование - Abstract
У статті представлено реалізацію деяких методів математичного моделювання та дослідження операцій в процесі їх вивчення, а саме при розв’язуванні реальних задач на основі теорії матриць з використанням системи комп’ютерної математики Mathcad. Розкрито методику побудови та аналізу математичних моделей для задачі з планування виробництва за допомогою балансової моделі багатогалузевої економіки та задач на знаходження оптимальної структури використання земельних площ. Подано алгоритми та технології розв’язання цих моделей у пакеті Mathcad., The article presentsthe implementation of some methods of mathematical modeling and operations research in the educational process, namely the solution of real-life problems based on the matrix theory applying the system of computer mathematics Mathcad. It describesthe methods of generating and analyzing mathematical models for a manufacturing planning problem utilizing the balance model of multi-branch economy, as well as problems of finding the optimal cropping pattern. The algorithms and problem-solving techniques of these models are set forth in the package Mathcad., В статье представлена реализация некоторых методов математического моделирования и исследования операций в процессе их изучения, а именно при решении реальных задач на основе теории матриц с использованием системы компьютерной математики Mathcad. Раскрыта методика построения и анализа математических моделей для задачи планирования производства с помощью балансовой модели многоотраслевой экономики, а также задач на нахождение оптимальной структуры использования земельных площадей. Изложены алгоритмы и технологии решения этих моделей в пакете Mathcad.
- Published
- 2012
26. ЗАДАЧА ОПТИМИЗАЦИИ ДЛЯ ИЕРАРХИЧЕСКИХ СИСТЕМ НА ОСНОВЕ СЕРВИС-ОРИЕНТИРОВАННОЙ АРХИТЕКТУРЫ
- Author
-
R. K. Kudermetov
- Subjects
Property (philosophy) ,Theoretical computer science ,Optimization problem ,computer.internet_protocol ,Computer science ,Service-oriented architecture, hierarchical multilevel system, satisfaction postulate, interlevel performance function ,Monotonic function ,Performance function ,General Medicine ,Service-oriented architecture ,Architecture ,computer - Abstract
Анотація, The problem of optimization is formulated for a hierarchic multilevel system which uses the foundations of Service-oriented architecture. The objective functions of each of such system levels are determined and it is shown that this system has an interlevel performance function. Properties of interlevel performance function are considered provided that the system has a monotonicity property.
- Published
- 2010
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