The purpose of the presented work is carrying out the system analysis of statistical data on results of application of the modified binary algorithm of bats at the solution of dynamic problems of discrete optimization for detection of features of its application and specification of rules of control. In article justification of broad application of algorithms of agent-based metaheuristics in the solution of optimizing tasks is executed. At the level of mathematical statement one of actual tasks which decision is demanded currently is shown. The shown task is interpreted on a concrete example in terms of graph theory. For its decision the binary algorithm of bats which allowed to solve successfully specified problem is reasonably chosen and modified. The last is confirmed by the presented results of three series of experiments. Authors made the detailed analysis of the specified results which materials is the main part of work. In the conclusion of article the list of concrete recommendations for increase of efficiency of binary algorithm of bats for the solution of dynamic problems of discrete optimization in general is created.

Keywords: system analysis, discrete optimization, graph theory, dynamic problems of discrete optimization, agent-based metaheuristics, bat-inspired algorithm

The purpose and objectives of this work is to develop methods of iterative methods for solving systems of linear equations. Achieving the goals and objectives achieved by the development of an iterative method using the apparatus q-differentiation. With the software package Matlab Computational experiments, which resulted in the performance of the proposed method is confirmed.

Keywords: system of linear equations, the objective function, the gradient method, iterative method, modeling, algorithm, function extremum, q-derivative, relative error, norm of the vector, the conditionality of the problem

The paper contains a description of a new method for automatic generation of maps of goods placement. Map of goods placement created by the author's search algorithm. The algorithm is based on ideas of evolutionary search. The proposed algorithm works with a population of constant size, allows not use complex search methods and for a reasonable time find a solution close to the optimum.

Keywords: simulation, evolutionary computation, multicriteria optimization, genetic algorithms

Information about authors of issue (№1 2014)

Keywords: authors

The paper considers different approaches and tools for system log files analysis. Authors describe typical cases where such analysis is required. Requirements for a multipurpose log analysis tool are stated. Three classes of log analysis tools are discussed: specialized ones, real-time analysis tools and configurable analyzers. Advantages and disadvantages of these tools are summarized. Reviewed tools are assessed in the terms of compliance to the stated requirements. Configurable analyzers are considered to be the most suitable tools for described tasks.

Keywords: system logs, semistructed form, pattern, structure recognition, records filtration

The paper describes the problems of information security of internet services when subjected to a distributed network attack. Describes the multi-agent model of attack. A system software simulated attack to study its properties in real time. The analysis of simulation results. An approach to maintain server stability under high load. Described hike proposed to implement on the basis of mechanisms of method "flood-gate".

Keywords: simulation, multagentnye systems, network threats, DDoS-attack, JADE, the stability of network services

The results of physico-chemical studies of micro-and macrostructure of fine-grained concrete hard pressing, used for making bread products for pavements . To improve the quality indicators ( bending moments ) in the fine-grained concrete mixtures were introduced damping additives such as ash microspheres - component slag mixtures . The essence is the replacement of the dense grain mixture with an equal volume of mineral supplements. Ash microspheres have a reduced strength and modulus . Of interest are preserved particles of hollow spheres of additive used , they are responsible for the effect of branching cracks. For experimental studies the author has developed a special method for determining the persistence of particles of ash microspheres after exposure compacting pressure. The quantitative ratio between the phases and composition of the mineral phase were determined by X-ray diffraction and optical microscopy.

Keywords: fine-grained concrete, hard pressing, components slag mixtures, ash microspheres, petrographic analysis, damping additives Derivatogram, diffraction, sample cylinders

To the East Donbass agglomeration has developed thematic maps of subsiding soils, indicating their capacity, groundwater levels, surface subsidence above mining, landslide and erosion hazards. Sources of information were the materials of the geological surveys, maps and literature data, and numerical modeling. For the purposes of industrial and civil construction built the final map of the cumulative effects of geological hazards.

Keywords: geological hazard, modeling, geofiltration,subsidence, landslides, erosion, underflooding, agglomeration.

Study the properties of rubble, produced by crushing recycled concrete. Secondary crushing of concrete products in the mass contains 20% of the grains gravel fraction 20-40 mm and 40-50% of the fraction 5-20 mm. The resulting rubble is the brand for divisibility 300-600, and its abrasion is within the A2-A4. Both indices increase with increasing grain size. To assess the grain shape of rubble offered index φs, which is the ratio of grain surface rubble to the surface of the cube of equal volume.

Keywords: concrete, crushing, gravel, crushability, wearability

Information about authors of issue №3 (2013)

Keywords: authors

Information about authors of issue №4 (2011)

Keywords: authors