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 Âûïóñê 46
- Babichev A. About the tuning of the interacting objects behavior
We investigate the problem of interacting subjects' coordination and consider a procedure, which iteratively tunes the state of one subject to reconcile it with states of its neighbors. Every step results in coordination of one subject, but other subjects may become uncoordinated even if they were tuned before. We derive the conditions when this process stabilizes. We also discuss subjects' characteristics which guarantee tunability of any network of such subjects, and construct a corresponding tuning algorithm.
- Medvezhonkov D., Zorkaltsev V. Computational experiments with variants of interior-point algorithms for nonlinear flow distribution problems
We present results of computational experiments which compare variants of primal and dual interior-point algorithms for nonlinear problems of flow distribution. The experiments show that linear weight coefficients divided by Lagrange multipliers dominate quadratic weight coefficients. We also show that the required solution accuracy is achieved faster when using dual algorithms, rather than primal ones.
- Orlov A. On mean values
New results in the theory of means (mean values) are given. We introduce the weighted means of type I corresponding to the sample, and those of type II corresponding to the set of order statistics. Evolution of ideas on Kemeny distance and Kemeny median is traced. We also propose a computation-friendly variation of Kemeny median, which avoids the “center of the bagel hole” effect. Then we generalize the Kemeny median by virtue of empirical and theoretical means in abstract spaces and prove the laws of large numbers for them.
- Chesnokov A. Columns-based intelligent systems
The paper considers columns-based intelligent systems and introduces basic definitions and notions. The direct and inverse problems of patterns are introduced. Solutions to these problems and their computational complexity are discussed. Also, a solution to pattern classification problem and a method of Boolean functions implementation are introduced. Finally, a class of problems that can be solved with columns-based intelligent systems is identified.
- Zhuchkov R. Predictive control approach in networked control systems
We consider a stabilization problem in a networked control system with packets dropouts and build dynamic feedback control using system outputs. Predictive control approach is used to obtain estimates of plant state at each time moment k, which makes unnecessary taking into account plant state switching when a packet dropout occurs.
- Ahohov A., Bludyan N., Dorofeyuk Y., and etc. Independent multivariate expertise in trans-regional bus service management
We propose a new approach to a trans-regional bus service management scheme design. This approach is based on the original method of independent multivariate expertise (IMVE). A distinctive feature of IMVE is that experts identify and develop independent problems solutions covering the whole original task. Efficiency of the method is verified by results of its application to a concrete management problem.
- Dyachenko V., Tarassenko L., Ougolnitsky G. Computer simulation of social partnership in the system of advanced professional education
A game-theoretic model of the system of advanced professional education is proposed. Some approaches to the model identification and investigation based on simulation modeling are considered.
- Kolodenkova A. Soft computing as a way to overcoming not-factors in the problems of the projects viability estimation
We study theoretical aspects of Not-factors and methods of their accounting in the problem of projects viability estimation, and suggest multi-fuzzy, fuzzy-interval and genetic-algorithm approaches based on formation of multi-criteria evaluations and choice of an acceptable design alternative. The proposed routines help to make more reliable decisions on possibility of project implementation and, thus, to lower risk of project failure.
- Korgin N., Korepanov V. Efficient solution of allotment problem with groves-ledyard mechanism under transferable utility
We consider a problem of allocation of limited amount of divisible good among a finite number of agents under transferable utility. We design a mechanism which implements a Pareto efficient allocation as a Nash equilibrium of the induced game. This mechanism is an adaptation of the Groves-Ledyard “quadratic government” that was initially offered for the problem of public good.
- Semenov A., Kochemazov S. Analysis of some discrete-automaton models of collective behavior
We analyze the phenomenon of collective behavior using a discrete-automaton model. This model is similar to those used in modern computational biology to explain dynamical processes in gene networks. Within the proposed framework we study a multiagent system, which contains not only conformists who make their decisions depending on other agents’ opinions but also agents with fixed decisions (the, so called, «agitators» and «loyalists»). We solve the problems of of small number of agitators (loyalists) placement, which forces the system to transit to a state where more than a half of agents is active (inactive). Our computational method based on SAT-approach made it possible to solve corresponding problems for systems with a hundred vertices with PC.
- Mai Ngoc Thang, Ha Van Muon, Kamaev V. and etc. Simulation and optimal control of intelligent hybrid renewable energy system
Nowaday energy management is an important subject for intelligent control. The problem is to find a real-time energy sources’ switching strategy, which minimizes wastes and energy cost. We consider an intelligent hybrid energy system (HRES), which optimizes a number of criteria, such as efficiency and energy costs, by switching between energy sources in real-time based on energy consumption and production forecasts. The switching strategy is found with a genetic algorithm. Efficiency of the developed control system as compared to existing energy systems is verified with computer simulation.
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