Begell House Inc.
Journal of Automation and Information Sciences
JAI(S)
1064-2315
42
5
2010
Approximate Solution of One Dynamic Problem of Geoinformatics
1-11
Vasiliy V.
Skopetsky
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kyiv, Ukraine
Vladimir M.
Bulavatskiy
V. M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kiev, Ukraine
A mathematical model of filtration consolidation of deformable saturated porous media, under the condition of acting geochemical processes, is constructed. The corresponding boundary value problem is formulated and the finite element algorithm for its solution is proposed.
On Sufficient Solvability Conditions for One Class of Optimization Problems
12-20
Vladimir E.
Kapustyan
Dnepropetrovsk State University, Dnepropetrovsk Technical University of Railway Transport; National Technical University of Ukraine "Kiev Polytechnic Institute", Kiev
Olga P.
Kogut
National Technical University of Ukraine "Kiev Polytechnic Institute", Kiev
The theorem on solvability of optimal control problems for nonlinear operator equations with parametrized operators that satisfy the condition of (G)-closedness on the set of admissible solutions has been proved. There is given the example of optimal control problem in coefficients of the main part of nonlinear elliptic equation for which all conditions of this theorem hold true.
Combinatorial Cutting while Solving Optimization Nonlinear Conditional Problems of the Vertex Located Sets
21-29
Oleg A.
Yemets
Poltava University of Economics and Trade, Poltava
Yelizaveta M.
Yemets
Poltava University of Consumer Cooperatives in Ukraine
Tatyana V.
Chilikina
Poltava University of Consumer Cooperatives in Ukraine
The method of cutting for problems on combinatorial vertex located sets with nonlinear objective functions with arbitrary additional conditions is considered. The initial problem is reduced to a problem with a linear objective function. The algorithm for this method is proposed. An illustrative example is given.
Optimal Quadrature Formulas for Computation of Continuous Wavelet Transforms of Functions in Certain Classes
30-44
Valeriy K.
Zadiraka
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kiev
Svetlana S.
Melnikova
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine
Liliya V.
Luts
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kiev
Consideration is given to the construction problem of quadrature formulas optimal by accuracy and the ones close to them for calculating continuous wavelet transforms. The optimal error estimates of calculating continuous wavelet transforms of functions of certain classes are obtained and the quadrature formulas to obtain these estimates are constructed.
Comparative Analysis of Recognition Methods of Inflammatory Processes at the Gliomas of Brain
45-52
Andrey L.
Tarasov
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kiev, Ukraine
Anatoliy M.
Gupal
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kiev, Ukraine
Nina Ya.
Gridina
Academician A.P. Romodanov Institute of Neurosurgery of the Academy of Medical Sciences of Ukraine, Kiev, Ukraine
The use of Bayesian recognition procedure is described for the Markov chains and the method of k-nearest neighbors for the indices of ESR (erythrocyte sedimentation rate) at brain gliomas. The obtained results showed that the indicated methods are inferior to Bayesian recognition procedures with independent attributes.
Determination of the Temperature Field in a Seam while Thermal Effects on the Basis of Solving the Inverse Problem
53-60
Khanlar Mekhvali ogly
Hamzayev
Azerbaijan State Oil Academy, Baku
The problem of determining the temperature field, arising in the oil pool while thermal action, is considered. It is considered, that the temperature distribution at the initial time and temperature at the outer boundary of the pool are unknown. This problem belongs to a class of inverse boundary value problems without initial conditions. For its numerical solution the difference method is proposed.
Medical Images Indexing and Retrieval in a Distributed Computing Environment
61-71
Konstantin S.
Kurochka
Gomel State P.O. Sukhoi Technical University
Igor V.
Safonau
State Scientific Organization "United Institute of Informatics Problems of the National Academy of Sciences of Belarus", Gomel
The problem of indexing and retrieval of medical of images in computer networks is considered. The technique and technology of organization of distributed search of images, using Grid resources, is described. The data of numerical experiments on the example of a database of images in a network with 15 computing nodes, are given.
Modeling and Optimization of Modern Financial-Industrial Structures Functioning
72-81
Tatyana N.
Boyko
Kiev National Taras Shevchenko University
Fedor G.
Garashchenko
Kyiv National Taras Shevchenko University, Kyiv, Ukraine
New classes of developing differential equations are considered. Systems with switchings are special case of such equations. Dependence between them and economic tasks of financial-industrial structures is shown. Structural-parametric optimization problems for developing systems are studied by means of their reduction to Bellman equations.