### COMPUTER SYSTEMS

**UDC 004.4 '242** Virtualization technology. Dynamic reconfiguration of resources computing cluster / Pohorily S.D., Bilokon I.V., Boyko Yu.V. // Mathematical Machines and Systems. - 2012. - N 3. - P. 3 - 18.

On the basis of performed analysis of modern hardware and software virtualization platforms it is proved the practicability of usage and researching of virtual machines on the Microsoft Hyper-V R2 platform as a compute cluster nodes. The concept of flexible homogeneous cluster architectures construction was expanded with ability of dynamically reconfigurable cluster computing system implementation using Microsoft Hyper-V technology virtualization features. The urgency of hardware platform of personal computers and servers for reconfiguration of the resources of computing clusters is shown. Таbl.: 2. Figs.: 4. Refs.: 45 titles.

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** UDC 004.27; 004.274; 004.315** Peculiarities of approach to the PLIS choosing for PIM-systems design /

Palagin O.V., Yakovlev Yu.S., Eliseeva O.V. // Mathematical Machines and Systems. - 2012. - N 3. - P. 19 - 28.

The generalized structural diagram, basic PLIS properties as an element base for the PIM-systems construction are considered. Peculiarities of the PIM-systems' structural organization are regarded. On this base the factors determining PIM-systems availability for realization on PLIS were highlighted. The peculiarities of family choice and PLIS type are formulated. The mathematical representation of PLIS choice terms as an element base for the PIM-systems construction is offered. Таbl.: 2. Figs.: 3. Refs.: 16 titles.

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**UDC 517.91** Sufficient conditions for stability of fuzzy hybrid automata / Bychkov O.S. // Mathematical Machines and Systems. - 2012. - N 3. - P. 29 - 37.

In this paper we obtain conditions for stability of linear hybrid automata with fuzzy switching. The dynamics of local conditions is described by differential equations on the process of fuzzy walk. Stability investigations are conducted by Lyapunov functions method. Refs.: 8 titles.

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**UDC 004.27**

Using modern computer system structures for the implementation of knowledge processing systems / Kurgaev О.Р., Savchenko I.V. // Mathematical Machines and Systems. - 2012. - N 3. - P. 38 - 48.

Due to the rapid technologies growth of programmable logic integrated circuits, developing of a new computer's architectures, which effectively support knowledge processing systems, remains a relevant problem. The analysis of task-oriented architectures and universal computer systems was conducted. The advantages and ways of using computers with a universal architecture for knowledge-processing systems implementation were considered. Figs.: 7. Refs.: 23 titles.

**UDC 004.942**

Pecularities of representation of the real numbers in the postbinary formats / Anopriyenko О.Ya., Ivanitsa S.V. // Mathematical Machines and Systems. - 2012. - N 3. - P. 49 - 60.

The actual transition to postbinary computing as an important step towards "flexible capacity" encoding quantitative values in the modern computer systems was regarded. A variety of modifications of traditional floating decimal point formats was proposed. Some examples of development of fractional, interval and postbinary formats based on the modification of standard representations of floating decimal point numbers were described. Tabl.: 3. Figs.: 3. Refs.: 18 titles.

**UDC 681.513.7**

Neuroemulator choosing on the base of local control gradients for Model Reference Adaptive Neurocontrol / Chernodub A.N. // Mathematical Machines and Systems. - 2012. - N 3. - P. 61 - 68.

Neuroidentification and neurocontrol with the reference model problems for nonlinear dynamic object are considered. A problem of proper neuroemulator choosing for neurocontroller training is analyzed. A new criterion on the basis of local control gradients analysis for input neuroemulator's neurons is proposed. Results of numerical simulations of neurocontroller training by a gradient descent method and for an Extended Kalman Filter method are given. Tabl.: 3. Figs.: 3. Refs.: 13 titles.

**UDC 681.3**

Galerkin method. A way of parallel implementation of the tasks of mathematical physics in a single computational flow / Ledaynkin Yu.Ya. // Mathematical Machines and Systems. - 2012. - N 3. - P. 69 - 80.

The idea of using the Galerkin method develops as a form of the weighted residuals method to create a single technological flow in calculating organization. A way of parallel information processing at the level of complex data structures is proposed and it described by the specific example of solving the nonlinear problem by the Galerkin method. This article is useful for mathematicians and developers of methods and structures of specially designed processor for solving problems of mathematical physics and other problems. Refs.: 4 titles.

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**INFORMATION AND TELECOMMUNICATION TECHNOLOGY**

**UDC 004.5**

Portion volume of step by step prompt and effectiveness of user interface keyword retrieval system / Lytvynov V.A., Maystrenko S. Ya., Oksanych I.M. // Mathematical Machines and Systems. - 2012. - N 3. - P. 81 - 87.

The influence of portion volume of prompt while typing a keyword on the efficiency of user interface of information-retrieval system is discussed. Calculated and experimental data of interface manufacturing content dependence and its components from the portion volume of prompt are given. We discuss the potential practicability of reducing the portion volume of prompt taking into account the experimental data for writing and synonymous substitution of keywords. Tabl.: 4. Figs.: 2. Refs.: 7 titles.

**UDC 680.3**

The analysis and justification of methods and models for the formation of typical scenarios, response to ES using GIS technology at the regional level /

Kuzmenko G.E, Hominich V.S. // Mathematical Machines and Systems. - 2012. - N3. - P. 88 - 96.

Methods and models of standard scenery for forming response to ES were analyzed in the article. The sceneries are considered as an intelligent concept for data knowledge filling for the decision support of response to ES. Tabl.: 1. Refs.: 12 titles.

### UDC 004.421

Top-down algorithms design within the framework of algebra-algorithmic approach / Doroshenko A.Ye., Akulovsky V.G. // Mathematical Machines and Systems. - 2012. - N 3. - P. 97 - 102.

Decomposing possibility of algorithmic constructions permitting to realize top-down design strategy of algorithms within the framework of algebra-algorithmic approach is shown. Figs.: 2. Refs.: 6 titles.

**UDC 519.711**

Multiagent model for Delphi process performance management of multitour expertise / Ilyina O.P., Slabospitska O.O. // Mathematical Machines and Systems. - 2012. - N 3. - P. 103 - 115.

The formal device for Delphi process efficiency modeling of scalar parameter estimation was developed. It is based on both Decentralized POMDP and expert viewpoints ontology models family. The algorithm for expert process alternating real tours and virtual multi-agent ones was proposed. Tabl.: 1. Fig.: 1. Refs.: 11 titles.

**UDC 004.4**

Analysis of disadvantages of automated data protection systems and biometric authentication methods that are used / Fenyuk M.V. // Mathematical Machines and Systems. - 2012. - N 3. - P. 116 - 123.

This article discusses a variety of information security systems using biometrics, their disadvantages that cause problems in automated systems running. Methods that allow eradicating disadvantages and using them to combat attackers are regarded in the paper. Refs.: 14 titles.

### SIMULATION AND MANAGEMENT

**UDC 631.3**

Methodical and Computing Aspects of Hazard Significance of Complicated System Components. P. II / Serebrovsky O.M. // Mathematical Machines and Systems. - 2012. - N 3. - P. 124 - 130.

Algorithmic complex for the rate computation of system group components significance and casual hazard factors are described. It is targeted for the usage in automated systems for the technological hazard analysis. Refs.: 7 titles.

**UDC 355.45**

Multilevel automated troop and command system coordination / Grishin S.P., Komarova L.O., Nevolnichenko A.I., Shary V.I. // Mathematical Machines and Systems. - 2012. - N 3. - P. 131 - 142.

This article is devoted to decentralized command and control with optimal coordination as a military effectiveness factor. Information technology for basic problem solution of organizational management with optimal coordination in multilevel automated troop and command system is given. It is also provided usage recommendations of the computer software to improve the quality and efficiency control of troops (forces). Figs.: 3. Refs.: 2 titles.

**UDC 004.652.4+004.827**

Flu epidemic analysis by means of deterministic simulation / Chorney I.M. // Mathematical Machines and Systems. - 2012. - N 3. - P. 143 - 146.

The sickness statistics of flu epidemic in 2010-2011 is analyzed. A set of epidemic indexes are calculated by means of deterministic simulation. The meaning of calculated indexes is explained. Figs.: 2. Refs.: 5 titles.

**UDC 519.2: 530.1: 600.1**

Multiple-valued variables, sequences, and functions / Gorban I.I. // Mathematical Machines and Systems. - 2012. - N 3. - P. 147 - 161.

On the base of the theory of hyper-random phenomena the description principles for multi-valued variables, sequences, and functions are developed. The concepts known for single-valued functions such as convergence, continuity, derivative, differentiability, indefinite and definite integrals are generalized for multiple-valued functions. The link between multiple-valued and divergent functions is established. Transformation peculiarities of single-valued functions into multiple-valued ones and multiple-valued functions into single-valued ones are researched. Figs.: 5. Refs.: 5 titles.

**QUALITY, RELIABILITY AND CERTIFICATION OF COMPUTER TECHNIQUE AND SOFTWARE**

**UDC 621.192 (035)** Residual life prediction of braze joints / Ivanov М.М., Strelnikov P.V. // Mathematical Machines and Systems. - 2012. - N 3. - P. 162 - 165.

The residual life of braze joints assessing method on the results of long-term operation using non-monotonic diffusion distribution was represented. Refs.: 6 titles.

**DISCUSSION NEWS**

** ****UDC 141.1, 303.725.36, 001.9** Information as conscious phenomenon / Malyshev O.V. // Mathematical Machines and Systems. - 2012. - N 3. - P. 166 - 177.

It is not a normal situation when the "information society" exists, but there is no a single common understanding of the term "information". C. Shannon, N. Wiener, L. Brillouin "Theory information" is perceived as classical one but it does not give clear answer the question "What is information?". It continues to ignore the semantic and pragmatic aspects of the subject, as well as an intuitive idea of it. This "theory information" led to the fact the last frontier of reality is begun to see in it. The way out of this situation is in defining subjective nature of the phenomenon of information - information is a "product" and the "food" of consciousness. Refs.: 15 titles.