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 Выпуск 34
- Saltykov S. According to the results of a computational experiment using decision rules of criteria importance theory can reduce 2–5 times the time spent on constructing a value function compared with a traditional approach of utility theory. For the case of two-variant and two-criterion choice the theorem is proved to quantify how many times criteria importance theory allows to reduce the proportion of cases when the value must be constructed.
According to the results of a computational experiment using decision rules of criteria importance theory can reduce 2–5 times the time spent on constructing a value function compared with a traditional approach of utility theory. For the case of two-variant and two-criterion choice the theorem is proved to quantify how many times criteria importance theory allows to reduce the proportion of cases when the value must be constructed.
- Yuditskiy S. An algebraic appliance is suggested which describe oriented graphs as a string of symbols appended with numbered vertical arrows (syllable language). This appliance is intended to represent a static component of a model of multiagent networks. A dynamic component of the model is described with algebraic indicator expressions based on recurrent equations (producing rules and Boolean algebra rules). Syllable operations are introduced. Considered individual and collective functioning of agents in multiagent networks, as well as interaction between agents.
An algebraic appliance is suggested which describe oriented graphs as a string of symbols appended with numbered vertical arrows (syllable language). This appliance is intended to represent a static component of a model of multiagent networks. A dynamic component of the model is described with algebraic indicator expressions based on recurrent equations (producing rules and Boolean algebra rules). Syllable operations are introduced. Considered individual and collective functioning of agents in multiagent networks, as well as interaction between agents.
- Agaev R. This paper is devoted to consensus problems in discrete multi-agent systems whose communication digraphs consist of disjoint strong components. It is shown that any block in the power limit of a decomposable and aperiodic influence matrix P of a digraph G is proportional to the corresponding block in the power limit of the influence matrix of the digraph Gh obtained from G by combining the strong components by means of a minimal cycle. It is proved that for some arc weights in this minimal cycle, the power limit of the influence matrix of Gh coincides with the resulting matrix of the orthogonal projection procedure applied to G.
This paper is devoted to consensus problems in discrete multi-agent systems whose communication digraphs consist of disjoint strong components. It is shown that any block in the power limit of a decomposable and aperiodic influence matrix P of a digraph G is proportional to the corresponding block in the power limit of the influence matrix of the digraph Gh obtained from G by combining the strong components by means of a minimal cycle. It is proved that for some arc weights in this minimal cycle, the power limit of the influence matrix of Gh coincides with the resulting matrix of the orthogonal projection procedure applied to G.
- Kartashov V., Novoseltseva M. An algorithm is developed for real-time detection of structural and parametric changes in stochastic processes and systems. The algorithm is based on the combined use of structural analysis and theory of continued fractions.
An algorithm is developed for real-time detection of structural and parametric changes in stochastic processes and systems. The algorithm is based on the combined use of structural analysis and theory of continued fractions.
- Karavay M., Podlazov V. We consider a way to build distributed full switches of arbitrary size consisting of fixed-size switches and channel splitters. The distributed switch preserves nonblocking and self-routing properties of a complete switch and forms an ideal system area network.
We consider a way to build distributed full switches of arbitrary size consisting of fixed-size switches and channel splitters. The distributed switch preserves nonblocking and self-routing properties of a complete switch and forms an ideal system area network.
- Yashkin A. In the article the problem is considered of large-scale information systems operations versioning support in the process of software upgrade. The solution is proposed that bases on creating ontology of semantic web. Merits and demerits of the approach are discussed.
In the article the problem is considered of large-scale information systems operations versioning support in the process of software upgrade. The solution is proposed that bases on creating ontology of semantic web. Merits and demerits of the approach are discussed.
- Bogatyrev V., Morozova S. We propose an economic-mathematical model of investment project financing schedule optimization under cash deficiency. We develop a technique to optimize a investment project financing schedule by means of payment delays, loans drawing, and careful penalties calculation. At the end we draw policy recommendations for investment projects financing.
We propose an economic-mathematical model of investment project financing schedule optimization under cash deficiency. We develop a technique to optimize a investment project financing schedule by means of payment delays, loans drawing, and careful penalties calculation. At the end we draw policy recommendations for investment projects financing.
- Varyukhina E., Klochkov V. The economic-mathematical efficiency analysis of natural market mechanisms that stimulate the aircraft safety increase was carried out. It was shown that aircraft industry is more vulnerable in passenger traffic decrease than airlines after plane crashes so the aircraft industry is more interested in flight safety than airlines.
The economic-mathematical efficiency analysis of natural market mechanisms that stimulate the aircraft safety increase was carried out. It was shown that aircraft industry is more vulnerable in passenger traffic decrease than airlines after plane crashes so the aircraft industry is more interested in flight safety than airlines.
- Mishin S. We minimize a cost function by choosing an optimal delegation of authority (DoA). DoA means distribution of management actions needed for a production subsystem between managers with complicated duplication of each others’ efforts. Formally this problem is equivalent to optimization of production volume distribution between firms with complicated exchange of products and multi-output cost functions. We have proved general properties of optimal solution which allow finding out optimal DoA for several classes of cost function. Key properties of managers’ cost functions hold true for a cost function of a whole management subsystem with optimal DoA.
We minimize a cost function by choosing an optimal delegation of authority (DoA). DoA means distribution of management actions needed for a production subsystem between managers with complicated duplication of each others’ efforts. Formally this problem is equivalent to optimization of production volume distribution between firms with complicated exchange of products and multi-output cost functions. We have proved general properties of optimal solution which allow finding out optimal DoA for several classes of cost function. Key properties of managers’ cost functions hold true for a cost function of a whole management subsystem with optimal DoA.
- Spiro A., Dorofeyuk Yu., Alperovich E. The analysis of open-end index mutual fund investor’s profitability was conducted. It is shown, that the assets, which are not included in the index, can significantly affect the investor's income.
The analysis of open-end index mutual fund investor’s profitability was conducted. It is shown, that the assets, which are not included in the index, can significantly affect the investor's income.
- Eisfeld A. The article is devoted to modeling socially-focused blocked domestic electricity rate scales. The blocked rate is calculated on the basis of Volgograd and the Volgograd region statistics. Properties of the proposed tariff scheme are numerically analyzed.
The article is devoted to modeling socially-focused blocked domestic electricity rate scales. The blocked rate is calculated on the basis of Volgograd and the Volgograd region statistics. Properties of the proposed tariff scheme are numerically analyzed.
- Romanukha A., Nosova E. The aim of the research is to construct methods for estimation of effectiveness of HIV-infection spread counteraction measures for Russian territories. It has been found that regional inequity in HIV prevalence is closely linked with prevalence of alcohol and drug abuse, which could be considered as a value of social maladjustment in population. Accounting influence of these processes on HIV risk-group formation allows explaining regional epidemic scale inequity and evaluate effectiveness of counteraction measures. We introduce the model, put the problem of model identification based on the data of Russian regions, and present results of data analysis.
The aim of the research is to construct methods for estimation of effectiveness of HIV-infection spread counteraction measures for Russian territories. It has been found that regional inequity in HIV prevalence is closely linked with prevalence of alcohol and drug abuse, which could be considered as a value of social maladjustment in population. Accounting influence of these processes on HIV risk-group formation allows explaining regional epidemic scale inequity and evaluate effectiveness of counteraction measures. We introduce the model, put the problem of model identification based on the data of Russian regions, and present results of data analysis.
- Vasiliev D., Kolokolov M., Ivaschenko V. We suggest models of automated electric loads forecast for industrial enterprises. These models help to save energy and to increase reliability of consumers’ power supply.
We suggest models of automated electric loads forecast for industrial enterprises. These models help to save energy and to increase reliability of consumers’ power supply.
- Denisov A., Belyankin M. Problems are considered of workflow-based scheduling system development for design processes of small-scale machine-building manufacture. Automated construction of design process workflow diagrams is proved to be required for small-scale machine-manufacturing. Algorithms for workflow diagrams automated construction are implemented in an information system. The algorithms use a formal model of design processes based on configuration management principles
Problems are considered of workflow-based scheduling system development for design processes of small-scale machine-building manufacture. Automated construction of design process workflow diagrams is proved to be required for small-scale machine-manufacturing. Algorithms for workflow diagrams automated construction are implemented in an information system. The algorithms use a formal model of design processes based on configuration management principles
- Kurov B. The article addresses to an improved version of the method of control algorithms efficiency comparison taking into account data accuracy solutions implementation. The method to choose an efficient algorithm that matches conditions of use is invariant to control problems type, complexity of algorithms compared and conditions of use. An example is given of algorithms comparison for division of load in a power system.
The article addresses to an improved version of the method of control algorithms efficiency comparison taking into account data accuracy solutions implementation. The method to choose an efficient algorithm that matches conditions of use is invariant to control problems type, complexity of algorithms compared and conditions of use. An example is given of algorithms comparison for division of load in a power system.
- Dubov A. In this article we describe methods to build an information model for an object of diagnostics with feedback loops. An object of diagnostics is defined by signal graphs of its functional elements. The suggested methods can be used as components of more complicated devices.
In this article we describe methods to build an information model for an object of diagnostics with feedback loops. An object of diagnostics is defined by signal graphs of its functional elements. The suggested methods can be used as components of more complicated devices.
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