2687-0517 4 176 2013 1-162

RAR RUS 9-17 Ivankov Alexey a.vnkv1@gmail.com Shishagin Alexei Stanford NLP parsers and semantic triplets identification We developed some own classes for the object model of Stanford NLP parsers to implement our algorithm of semantic triplet identification. Results of information retrieving are discussed for en.Wikipedia articles. 681.3.07 information retrieving semantic analysis Stanford NLP parsers semantic triplet retrieving errors https://infocom.spbstu.ru/article/2013.34.1/ 01.pdf

RAR RUS 18-28 Glushkov Peter pglushkov@gmail.com Mikhailov Nikolai nmikhailov@softnav.ru Yudakin Dmitry dyudakin@softnav.ru Open-loop tracking of GNSS signals under condition of multipath propagation A new method for GPS signal tracking is being proposed. The method differs from conventional delay-locked loops, frequency/phase-locked loops and is based on calculation of a narrow-band signal correlation function in time-frequency domain. The method allows to track both line-of-sight signal and reflected GNSS signals, which cause serious degradation of positioning accuracy in urban environments. The method is targeted at mobile user under severe multipath propagation conditions, when reflected signal power is comparable to the power of line-of-sight signal. 621.396.98:629.195 GNSS GPS multipath propagation signal tracking open-loop tracking https://infocom.spbstu.ru/article/2013.34.2/ 02.pdf

RAR RUS 29-40 Peter the Great St. Petersburg Polytechnic University Benderskaya Elena helen.bend@gmail.com

St. Petersburg, Russian Federation

Peter the Great St.Petersburg Polytechnic University Nikitin Kirill execiter@mail.ru Recurrent neural network as dynamical system and approaches to its training This paper presents the results of analytical study of recurrent neural networks (RNN) and their summary classification, done from the position of dynamical systems with regard to a new type of RNN – reservoir RNN. Knowledge systematization in the subject field allowed to distinguish main dynamical regimes of RNN and to describe the most perspective trends in the development of training algorithms in terms of the detected advantages and drawbacks of existing approaches. 004.8.032.26, 681.513.8 recurrent neural network dynamical system training algorithms reservoir computing unstable dynamics https://infocom.spbstu.ru/article/2013.34.3/ 03.pdf

RAR RUS 41-46 Sukhov Igor sia23@mail.ru Akimov Valerij valeri_akimov@mail.ru Super resolution techniques for direction-finder antenna array with directional elements Super resolution technique is applied to the circular antenna array of shunt dipoles. Direction-finding accuracy and resolution ability are estimated experimentally. Method of the MUSIC algorithm improvement for the direction-finder is suggested. 621.396.663 multiple signal classification circular antenna array direction-finding direction-finding algorithm beamforming https://infocom.spbstu.ru/article/2013.34.4/ 04.pdf

RAR RUS 47-54 Kedrin Victor kedrinvs@mail.ru Kuzmin Oleg quzminov@mail.ru Frequency analysis of time series periodic functions by means assessment of the number of ranks The article describes the features of the method of analysis for singular time series formed additive periodic. Proposed a method research of dynamic properties of the system based on the evaluation of the numerical rank. 519.876.5 + 681.5.015.87 time series periodic functions singular value decomposition numerical rank frequency analysis https://infocom.spbstu.ru/article/2013.34.5/ 05.pdf

RAR RUS 55-64 Pisarev Aleksandr apissarev@yandex.ru Norilsk State Industrial Institute Sulyaev Ilgiz ilgizfinland@mail.ru Neural emulator temperature mode of copper-nickel raw materials smelting in Vanyukov furnace One of Vanyukov furnace smelting problems is large losses of non-ferrous metals with slag, which lead to lower process. Melt temperature significantly influences effective separation of melting products and consequently their chemical composition. The purpose of work is to create temperature smelting model of copper-nickel raw materials in Vanyukov furnace based on artificial neural networks and statistic data use. The elaborated model will create automatic control system supporting optimal temperature mode in furnace. 681.513 Vanyukov furnace neural network emulator temperature mode copper-nickel raw materials matte forecast https://infocom.spbstu.ru/article/2013.34.6/ 06.pdf

RAR RUS 65-70 Petrosyan Grigoriy gregory.petrosyan@gmail.com Language support for systematic error handling Runtime errors are divided into expected and unexpected; requirements for language support for systematic error handling are proposed. Popular approaches to error handing — exceptions and return codes – are analyzed. Automatic treatment of unexpected errors by means of restoring program state invariants is proposed. Based on the conducted analysis, several mechanisms of language support for systematic error handling which satisfy stated requirements are proposed. 004.432 programming languages error handling exceptions return codes invariants https://infocom.spbstu.ru/article/2013.34.7/ 07.pdf

RAR RUS 71-78 Potlov Anton zerner@yandex.ru Proskurin Sergey spros@tamb.ru Color Doppler mapping algorithm of biological liquids’ directed flows using optical coherence tomography A new algorithm of color Doppler mapping of one specific velocity of biological liquids with shuttle flows using optical coherence tomography is presented. The algorithm does not have the disadvantage 2π-ambiguity of color Doppler images. It is realized using the separation of the raw data to two parts corresponding to positive and negative shifts of the carrier frequency. As a final result, the complexation of independently reconstructed structural image and 2D color-coded one specific velocity image is performed. The practical implementation of the algorithm was performed in the LabVIEW package using the stream programming. A blood vessel hydrodynamic phantom was used for testing and debugging the final software product. 004.421 color Doppler mapping one specific velocity optical coherence tomography images’ complexation flow of biological fluid https://infocom.spbstu.ru/article/2013.34.8/ 08.pdf

RAR RUS 79-86 Peter the Great St.Petersburg Polytechnic University Igor G. igcher@spbstu.ru

Polytechnicheskaya, 29, St.Petersburg, 195251, Russia

Practical optimization and nonconvex problems Main aspects of optimization problem in real computing are described. Requirement to take into account such parameters of applied extremal problem as rigidity and nonconvexity of criterion functional is founded. It is established that classic Newtonian and quasi-Newtonian optimization procedures are strongly influenced by inaccuracies in this case and nonconvergent procedures may appear. 681.3.06 optimization procedure nonconvex optimization problem Newtonian procedure https://infocom.spbstu.ru/article/2013.34.9/ 09.pdf

RAR RUS 87-94 Bortyakov Danil Mescheryakov Sergey serg-phd@mail.ru Solodilova N.A. solodna@yandex.ru Quality assurance of computer-aided design for production metalware based on distributed database of operating defects Production object database of operating defects on various enterprises in the North-West region of Russia is analyzed. The most problematic metalware and chronic defects are figured out as well as methods to resolve them. Traditional mathematic models of metalware estimation are modified for the purpose of quality assurance to computer-aided design. 681.3.016 database operating defect metalware computer-aided design quality assurance https://infocom.spbstu.ru/article/2013.34.10/ 10.pdf

RAR RUS 95-101 Pilipko M.M. m_m_pilipko@rambler.ru Time-mode delta-sigma modulator for an analog-to-digital converter Principle of time-mode analog-to-digital conversion is considered. Circuits utilizing this principle are presented. A differential structure of the time-mode delta-sigma modulator is proposed. Operability of the presented circuits has been confirmed by transistor-level simulation. 621.376.9 voltage-to-time converter delta-sigma modulator digital circuits https://infocom.spbstu.ru/article/2013.34.11/ 11.pdf

RAR RUS 103-110 Bostonov Oskar bostonov@yandex.ru Zverev Gennady Semiotic integration and control of business processes in petroleum  organization The paper provides analysis of the current state of the issue regarding integration of information systems. The issue of integration and efficiency of the control and management in business processes is proposed to be solved by constructing an adequate hierarchical model of the company and its subsidiaries in the form of a network operating productions, estimation of statistical parameters of information flows and tasks. 004.4''22 integration information systems semiotics consistency https://infocom.spbstu.ru/article/2013.34.12/ 12.pdf

RAR RUS 112-122 Makoha Anatoliy anmakoha@mail.ru Research of canonical trivectors of eighth grade by means of theory of the graphs and groups of substitutions In the article using the graph theory investigated all types of canonical trivectors eighth grade for their unambiguous representation. In the event of ambiguities found substitutions groups trivectors transform one into the other. 514.743.2 grade trivectors canonical form trivectors hyperplane cyclomatic number of a graph substitution groups https://infocom.spbstu.ru/article/2013.34.13/ 13.pdf

RAR RUS 123-130 Mnukhin Valery mnukhin.valeriy@mail.ru Integral transform for symmetry recognition of gray-level images A transform for symmetry recognition in 2D gray-level images is considered. The transform is invariant under rotations and translations, but is not scale-invariant. The rigorous mathematical description of its properties is provided and a series of tests for symmetry recognition is produced. Some details of the discrete case realization are given and illustrated with experiment results. 528.854 symmetry recognition gray-level images symmetry group frequency domain integral transform Fourier–Mellin transform https://infocom.spbstu.ru/article/2013.34.14/ 14.pdf

RAR RUS 131-141 Chervyakov Nikolay k-fmf-primath@stavsu.ru Babenko Michael whbear@yandex.ru Lyakhov Pavel ljahov@mail.ru Lavrinenko Irina Approximate method for determining the number sign in residue number system and it’s technical sales This paper proposes an approximate method for determining the sign of the number in the residue number systems. This method is based on fast approximate calculation of the relative magnitude of the number to the range of the system. Technical implementation of the proposed method, which is easy to implement. It is shown that the application of the proposed method significantly reduces the time to perform basic operations in the problem of residue number systems. 621.391 residue number system modular arithmetic positional characteristics approximate method number sign https://infocom.spbstu.ru/article/2013.34.15/ 15.pdf

RAR RUS 142-149 Dichenko Sergey Eliseev Nikolai Finko Oleg ofinko@yandex.ru Error function generator binary PRS control implemented on arithmetic polynomials A method of improving safety of the cryptographic protection of information (CPS), in particular the formation of binary nodes pseudorandom sequence (PRS), operating in a noise generated by an attacker. System of Boolean equations realize linear characteristic polynomial arithmetic, allowing parallelize the process of calculating the elements of the PRS. “Arithmetization” logical accounts, in turn, allowed the use of redundant modular device codes for error control operation of generating units and to provide bandwidth, thus the necessary security of their operation in the CPS. 519.7 binary pseudorandom sequence parallel logical calculations by polynomials arithmetic modular arithmetic the error control operation of the cryptographic protection of information generation of hardware errors cryptography cipher scheme https://infocom.spbstu.ru/article/2013.34.16/ 16.pdf

RAR RUS 150-155 Malofey Oleg Shchelkunova Yulia Approach to the creation of a structural code to write and include the deployment of data in a storage device infotelecommunication systems The paper presents way for generating of a structural code, the basis for treating of the method for recording and reading of data in the storage, which can decrease the size of memory in one and a half time and, consequently, increase its indexes of reliability, dimension and capacity of the energy in few times. The synthesis code securely corrects modular errors and can be applied for the control of workability of the units of memory. Also we can see here fault-tolerant structures of the memory for 8-, 16and 32-positional formats of the data notation. 681.3.07 error correction codes device input/output finite fields https://infocom.spbstu.ru/article/2013.34.17/ 17.pdf

RAR RUS 156-159 Korneyev Petr Zhuravleva Irina Constructing best mean-square polynomials approximating a function and its derivatives The paper proposes a direct method for constructing a polynomial of degree m-best mean approximation that approximates both the function and its derivatives up to the m-th order. These polynomials are close to polynomials of best uniform approximations. 17.518.82 approximation best uniform polynomial approximation polynomial approximations of the RMS Chebyshev norm functions https://infocom.spbstu.ru/article/2013.34.18/ 18.pdf