Комп'ютерні науки та інженерія (CSE-2013 ). – 2013 р.
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Матеріали VІ Міжнародної конференції молодих вчених CSE-2013
У збірнику опубліковано матеріали конференції, присвяченої проблемам у галузі інформаційних систем, прикладної та комп’ютерної лінгвістики, комп’ютерних систем та мереж, математичного моделювання та обчислювальних методів, інформаційно-телекомунікаційних технологій, радіотехнічних пристроїв та систем, мікро- та наноелектроніки, інформаційно-вимірювальних технологій, метрології, інформаційної безпеки, World Wide Web та соціальних комунікацій.. Видання призначено для науковців, аспірантів, студентів.
Комп'ютерні науки та інженерія [Електронний ресурс] : матеріали VІ Міжнародної конференції молодих вчених CSE-2013, 21–23 листопада 2013 року, Україна, Львів / Міністерство освіти і науки України, Національний університет "Львівська політехніка". - Львів : Видавництво Львівської політехніки, 2013. – 1 електронний оптичний диск (CD-ROM). – (4-й Міжнародний молодіжний фестиваль науки "Litteris et Artibus"). - Титульний аркуш паралельно англійською. – Назва з екрану.
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Item The study of noise immunity for interpolation method of nonlinear dynamical systems identification based on Volterra model in frequency domain(Видавництво Львівської політехніки, 2013) Pavlenko, Vitaliy; Speranskyy, ViktorThe noise immunity of the interpolation method of nonlinear dynamical systems identification based on the Volterra model in the frequency domain is studied in this paper. The polyharmonic signals are used as the test ones. The algorithmic and software toolkit in Matlab is developed for identification processes. This toolkit is used for constructing the informational model of test system. The model is built as a first, second and third order amplitude–frequency and phase–frequency characteristics. The wavelets are studied and used to reduce the noise impact on final characteristics of the test object.Item Aggregating of information for the support system of making decision for the choice of air routes(Видавництво Львівської політехніки, 2013) Kovalskiy, YevgenThe process of aggregating of information is in-process considered from a web-resource Wikipedia for the support system of making decision for the choice of air routes.Item Broadcast video streaming in Internet(Видавництво Львівської політехніки, 2013) Shylovskyi, Dmytrothe paper is dedicated to optimization quality of video streaming in network with low bandwidth which isn't insufficiently to broadcast video stream in real time. To improve method Forward Error Correction (FEC) through introducing varying redundancy ratio for each data element.Item The upper and lower bounds for solutions of general quadratic optimization problems(Видавництво Львівської політехніки, 2013) Kosolap, Anatolii; Peretiatko, AnastasiiaWe consider the general problem of quadratic minimization with quadratic constraints. We are searching for the upper and lower bounds for the values of the minimized function. Semidefinite optimization is used for finding the lower bound. This lower bound is used to obtain an upper bound by interior point method. Numerical experiments often show that obtained upper bound is the exact solution of the original problem.Item Simulation of burst aggregation and signalling schemes for optical burst switched networks(Видавництво Львівської політехніки, 2013) Dumych, Stepan; Maksymyuk, Taras; Guskov, PavloIn this paper the model of IP-packet aggregation in the ingress node for OBS networks proposed. The main difference of this model is packet loss probability accounting due to block sizes distribution. Simulation results determined that proposed algorithm 10 times reduces the IP-packet losses, providing the same throughput.Item Numerical-analitical appoaches to the calculation of thermal field in parallelepiped considering inner sources(Видавництво Львівської політехніки, 2013) Zhuravchak, Liubov; Kruk, OlenaWe compare the efficiency using indirect boundary and near-boundary elements methods for building numericalanalytical solution of three-dimensional stationary heat conduction problems. We built mathematical and discretecontinual models of problems with boundary conditions of the first kind, second kind and third kind using integral representations for the temperature.Item Primary symbol recognition using scanline structural descriptions(Видавництво Львівської політехніки, 2013) Gorokhovatskyi, Oleksii; Peredrii, OlenaThe method for the construction of scanline linear descriptions of an object on image was proposed. Description is based on interpretation of structural links of the object elements and is stable despite object scale and movement changes. Comparison procedures of proposed descriptions were investigated, efficiency of suggested approach was confirmed by computer modelling experiments.Item Color and shape based image retrieval(Видавництво Львівської політехніки, 2013) Kozubets, Alexander; Tushnytskyy, RuslanImage retrieval based on some good feature could be extremely inefficient in some cases. As there is no some allpurpose method to achieve suitable retrieval results, we forced to combine different image features to improve quality of image retrieval. Invariant moments and color autocorrelogram are considered in this paper.Item Automatic paralleling of tasks in reconfigurable multiprocessor systems(Видавництво Львівської політехніки, 2013) Zhabin, Valeriy; Liashchun, ІhorA method of automatic paralleling of tasks that accelerates computing in reconfigurable multiprocessors systems based on the dataflow model is given.Item The linguistic support of electronic libraries(Видавництво Львівської політехніки, 2013) Veretennikova, NataliiaIn this article the current state of library in the information technology development is presented, the features of linguistic support of electronic libraries are described, and the characteristics of the major information retrieval languages are detailed.Item Organisation natural language sentences using logic-linguistic models(Видавництво Львівської політехніки, 2013) Vavilenkova, NastyaThe article considers the approaches used for semantic analysis of text information: finite state transition network and content analysis. It is proposed to use logiclinguistic models for organisation natural language sentences.Item The advanced operations of table algebra(Видавництво Львівської політехніки, 2013) Glushko, IrynaTable algebra is filled up with new operations such as inner and outer join, semijoin, outer set operations. A formal mathematical semantics of these operations is defined. The special element NULL is inserted in the universal domain for to define of outer join and outer set operations.Item Титульний аркуш до "Комп'ютерні науки та інженерія" CSE-2013(Видавництво Львівської політехніки, 2013)Item Зміст до "Комп'ютерні науки та інженерія" CSE-2013(Видавництво Львівської політехніки, 2013)Item Spatial modeling of greenhouse gas emissions from burning biomass in the residential sector in Volyn region(Видавництво Львівської політехніки, 2013) Danylo, Olha; Lyubinsky, BogdanSpatial model of greenhouse gas emissions from burning biomass in the residential sector in Volyn region is developed. The results of modeling are analysed. The major emission sources are located. Based on performed numerical experiments the digital map and georeferenced databases, containing information about the sources and evaluation of the greenhouse gas emissions, are obtained.Item A two player network differential game with window-based control and losses(Видавництво Львівської політехніки, 2013) Ignatenko, OleksiiThis paper deals with a network game with one server and two players with windows-based system dynamic and losses. We consider an integral constraint – special type of constraint on control function. It is shown an existence of optimal solution in the optimal control problem and found Nash equilibrium point in correspondent game. Theoretical results are illustrated by simulations in NS-3 environment.Item Building a smart news annotation system for further evaluation of news validity and reliability of their sources(Видавництво Львівської політехніки, 2013) Shakhovska, Natalia; Berbelyuk, VolodymyrThe article describes the elements of news annotating information systems to further assess the news validity and reliability of their sources. Considers the process of system operation and algorithms that can be used in the implementation of such a system.Item Consolidated information resource of office documentation at Iskra corporation(Видавництво Львівської політехніки, 2013) Holoshchuk, Roman; Moskaliuk, YuliaThe relevance of computer facilities and content management system techniques while working with the office documents is discussed. Database designing for the office documentation using an MySQL open-source software product is proposed. Besides, the importance of Internet web-site to provide to company`s information resources for users is considered. The research aims to provide more precise and adequate recommendations for the design of information system so that this system can be implemented successfully and contribute to improvements in organizational effectiveness.Item Model of acoustic and vibroacoustic information leakage through a glass window in a protected room(Видавництво Львівської політехніки, 2013) Lyubchik, Yuliia; Kenyo, HalynaWith the help of physical and technical modeling system COMSOL Multiphysics 3.5a the formation of acoustic and vibroacoustic voice information leakage channels through the closed glass window in the room was studied. The influence of an enclosed window on the acoustic field indoor and outdoor space beyond was found out. The probability of interception acoustic information through the closed window was evaluated. The formation of vibroacoustic information leakage channel was shown. The values of deformations and vibration acceleration were calculated and they had shown the high probability of formation vibroacoustic information leakage channel and interception information with appropriate technical means.Item Image classification and retrieval by color concentration features(Видавництво Львівської політехніки, 2013) Melnyk, Roman; Hryha, ІvanThe method for distributed features of visual pattern extracted from intensity fragments and segments is considered. The features of intensity, pixel coordinates and mixed ones are calculated. Some main image features as well as results of similar patterns searching from known databases are presented.