UDC 519.2+600.1 Pointed and interval estimate methods for hyper-random values / Gorban I.I. // Mathematical Machines and Systems. 2006. N 2. P. 3 - 14. Pointed and interval estimate methods has been developed for special non-determine phenomena (called as hyper-random values) for which the probable measure is absent. Figs.: 4. Refs.: 10 titles.
UDC 517.51+519.651.2 Analytical data processing with using Chebyshev approximation / Vacal L.P., Kalenchuk-Porkhanova A.O. // Mathematical Machines and Systems. - 2006. - N 2. - P. 15 -24. In the paper we discuss methods and algorithms for Chebyshev approximation which can be used with success to solve main problems of analytical processing numerical data arrays. Algorithms based on the second method of Remez are proposed for the best uniform approximation of functions by linear and nonlinear expressions. For some algorithms estimates for all kinds of errors are given. Algorithms for the uniform piecewise polynomial approximation and for the best Chebyshev approximation of many-variables functions by sums of basic functions are also proposed. Some examples of application of elaborated algorithms for analytical data processing are given. Refs.: 25 titles.
UDC 680.3 The system-cybernetic approach to the analysis of functions of active objects for their realization in modern technologies // Tesler G.S., Koss V.A. // Mathematical Machines and System. - 2006. - N 2. - P. 25 - 35. In the paper is stated the cybernetic approach to the analysis of essence of the functions of active objects. The analysis has allowed to allocate base processes, balance of which provides steady functioning of objects according to applicability. Knowledge of essence of these processes and contents of the information in a cycle of management of object give an information basis for designing systems of intellectual support of the personnel of these objects by means of artificial intelligence and cognitive diagrams. Figs.: 9. Refs.: 14 titles.
UDC 681.324 Technology of integration of means of protection of network perimeter / Alishov N.I., Marchenko V.A. // Mathematical Machines and Systems. - 2006. - N 2. - P. 36 - 47. In article the new approach in technology of integration of means of protection of network perimeter of information system is considered. Formalization of technology of the organization of protection of network perimeter is adduced and its brief description is given. Results of experimental modelling of the offered technology in the environment of discrete modelling OMNET ++ are described. Figs.: 5. Refs.: 15 titles.
UDC 681.513 Methodology of the analysis and synthesis of reconfigurable topologies of mobile communication networks / Gorbunov I.E. // Mathematical Machines and Systems. - 2006. - N 2. - P. 48 - 59. The methodology of reconfigurable topology of WATM networks is considered, proceeding from reliability of their functioning. The example of implementation of methodology of the system analysis and synthesis of network topology reconfiguration processes is offered. Figs.: 6. Refs.: 21 titles.
UDC 681. 324. 658 The arrangement of the perfomed and the scheme of the problem derision / Kochergin Y.A. // Mathematical Machines and Systems. - 2006. - N 2. - P. 60 - 70. The work is devoted the scheme of the problem decision of auto regulation by redistribution of throughput of the batch switchboard between its ports, which is depending on changes character of packages streams speeds and which act on inputs of these ports is offered. The differential equation of adjustment which displays auto regulation process is synthesized. Corresponding Bellman's function is constructed. The analytical designing problem of regulators is shown to the decision of Ricotta's equation. Refs.: 8 titles.
LARGE SYSTEM SIMULATION AND MANAGEMENT
UDC 681.3 Development Centre Competence / Koval V.М., Komukhaev E.G., Savyak V.V., Yakuba A.O. // Mathematical Machines and Systems. - 2006. - N 2. - P. 71 - 79. In the article the condition of development of the Centers of the competence created for acceeleration of introductions of high technologies, products by the support of theier vendors is considered. The main attention is given to the Centers of the competence of cluster systems, which are carrying out support of problems of the users of clusters, testing their decisions, modelling compatibility of systems, works on modernization of clusters, estimation of the intellectual actives, expanding interaction with customers. Efficiency of technologies InfiniBand, RASC, HyperTransport, applications of opportunities FPGA is marked out. Tabl.: 3. Refs.: 7 titles.
UDC 681.51:57 The finding and user errors correction on dictionary of the possible words and word-combinations / Litvinov V.A., Maistrenko S.Ya., Hodak V.I. // Mathematical Machines and Systems. - 2006. - N 2. - P. 80 - 86. The method of the checking, automatic (semiautomatic) to identifications and corrections spelling and semantic user' s errors, which were made in step of primary shaping or entering the document, is considered. Models of the estimation of the probabilistic features, defining efficiency and area of the expedient using the method are offered. Tabl.: 1. Figs.: 2. Refs.: 5 titles.
UDC 681.3 Automatic-graph's formal model of the composite docflow / Krukovskiy M.Yu. // Mathematical Machines and Systems. - 2006. -N 2. - Р. 87 - 95. This paper describes approach of usage finite states machine for creating a system of of FSMs that are connected by graphs. Document management system implemented as a SM that operates with FSMs as a behavior models. In the paper covered issues of document management implementation based on hierarchical finite state machine. Figs.: 3. Refs.: 10 titles.
UDC 651.3:518.5 Adaptation of the process of education in the distance learning systems on the base of the quick perception and retention of knowledge by the students / Fedoruk P.I. // Mathematical Machines and Systems. 2006. N 1. P. 96 - 106. The article under study reveals the approach to evaluation and forecasting of the quickness of perception and knowledge retention by students in the system of distance education , what helps to adapt the process of learning and conduct it in the optimal way for each concrete student. The mathematical model is proposed, which takes into account the quickness of perception of new material, the order of the test, the level of learning material retention, dependence of the quickness of retention from the quickness of perception, what may be used for the system constructing, what may take into account the individual student's abilities, his or her previous knowledge, capabilities, peculiarities in the perception of new material. Tabl.: 2. Refs.: 5 titles.
UDC 517.9:534.2:004.942 On automation of acoustic fields calculation in non-homogeneous waveguides / Gladky A.V., Podlasov Ye.S. // Mathematical Machines and Systems.- 2006. - N 2.- Р. 107 - 117. The task of automatization of solving the hydroacoustic problems connected with calculation of the acoustic fields in non-homogeneous waveguides automation is considered. The mathematical models of the wave processes spreading in the form of differential equations with partial derivatives are presented. The software for solving these problems using methods of normal modes, ray approximation and parabolic equation is described. Figs.: 4. Refs.: 17 titles.
UDC 519.876.5:656.7(045) Definition of the given expenses on operation of functional systems of air craft of the new generation / Kozlyuk I.O. // Mathematical Machines and Systems. - 2006. - N 2. - P. 118 - 125. The processes of maintenance service of air craft for reception of the greatest possible profit from their operation - are considered the given expenses for operation of functional systems of air craft courts are determined. Is revealed, that by development of the complex approach to optimization of processes of operation of perspective air craft courts by technical and economic criteria of efficiency of maintenance service and repair all condition of functional systems during maintenance service have probability character, and for their definition mathematical it is necessary to develop models on the basis of the theory of recycling processes. Figs.: 2. Refs.: 9 tites.
UDC 658.012.011.56 Data organization and functional structure of the lexicographical systems "Ukrainian National Linguistic Corpus" / Sidorchuk N.N. // Mathematical Machines and Systems. - 2006. - N 2 . - C. 126 - 135. The paper deals with the problems which have emerged in the course of development of the lexicographical system "Ukrainian National Linguistic Corpus" (UNLC). Peculiarities of the metadata storage organization in the subsystem "Digital library" are discussed. An overview of concrete data structures defined for building an access unit to storage objects is presented. The choice of multilevel architecture of the software is substantiated. Functional decomposition of the application level and distinctive features of the data presentation level organization are described. Figs.: 6. Refs.: 6 titles.
UDC 683.5 The system of automation of meat production control. The subsystems of the estimation of meat production quality / Zaytsev V.G. // Mathematical Machines and Systems. - 2006. - N 2. - P. 136 - 140. The paper the subsystems of a visual estimation of quality of meat production, automation of account of humidity and definition of the contents nitrites in gammon, cooked - smoked, boiled, stuffed and other kinds of meat production are considered. Tabl.: 4. Refs.: 3 titles.
UDC 681.513 Method of complex expert evaluation for difficult technical systems planning / Lysetskyi Yu.M. // Mathematical Machines and Systems. - 2006. - N 2. - Р. 141 - 146. A new method of quantitative treatment of expert estimations and metrical descriptions is offered at planning of the difficult technical systems, providing the effective decision of task of evaluation, organization and choice, due to the complex use, different methods of quantitative estimation of quality of alternative variants. Tabl.: 3. Figs.: 2. Refs.: 11 titles.
QUALITY, RELIABILITY, AND CERTIFICATION OF COMPUTER TECHNIQUE AND SOFTWARE
UDC 621.3.019.076 To a question on tabulation refusals distribution function / Fedukhin O.V. // Mathematical Machines and Systems. - 2006. - N 2. - P. 147 - 152. The reparametrization of the basic strictly probabilistic functions of refusals distribution: exponential distributions, logarithmically normal distribution and distribution Weibull are carried out. Tables of refusals distribution functions and examples of their use for the decision of some tasks on reliability are developed. Tabl.: 8. Refs.: 2 titles.
UDC 681.3.019.3 Calculation of reliability of reserved structures with use of -distribution on the basis of the device of functions of casual arguments / Strelnikov V.P., Dgassim Muhamed Kasmy // Mathematical Machines and Systems. - 2006. - N 2. - P. 153 - 157. Using device FCA, engineering design procedures of reliability of reserved systems such as " from " for any values and which result in definition of -distribution of an operating time to refusal of considered systems on the basis of which it is possible to receive simply estimations of all necessary parameters of reliability of these systems (an average operating time to refusal, a scale-percent operating time to refusal, probability of non-failure operation for set time, a residual resource, etc.) are developed. Refs.: 5 titles.