Proceedings of the Technical university of Sofia, 1995 -: Последно депозирани

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    Заглавие: Object oriented neural network simulator  Автор: Лазарова-Мицева, Милена Кирилова; Lazarova, Milena Вж Mitseva-Lazarova, Milena Kirilova; Лазарова, Милена Вж Мицева-Лазарова, Милена Кирилова; Мицева-Лазарова, Милена Кирилова; Chochev, Cocho; Hachikyan, Agop Hachik rew.; Хачикян, Агоп Хачик рец.; Гочев, Гочо Вълев; Gochev, Gocho Valev Дата: 2005 Резюме: An object-oriented neural network simulator is discussed in the paper. The simulator implements learning and recall processes in a feed-forward neural network trained using error backpropagation algorithm and a self-organizing Kohonen neural network trained by a competitive learning procedure. The simulator consists of a library of C++ ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Creation, development and analysis of models for e-education — technologies and techniques  Автор: Minkovska, Danieia Veleva; Минковска, Даниела Велева; Pavlova, Rayna rev.; Павлова, Райна рец. Дата: 2005 Резюме: This article examines the main concepts of E-learning and the possible technologies and techniques for creating and applying E-learning models in the education, subject to a pedagogically—information assessment. A brief overview and comparative analysis is made for some of the existing models for education. Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: По-нататъшно усъвършенстване на многодименсионния модел на база данни за интелигентни системи  Автор: Цанкова, Румяна Страшимирова; Tsankova, Rumyana Strashimirova; Павлова, Райна рец. Дата: 2005 Резюме: Abstract: The main information technics, used with multiaspects aggregations and hierarhical analises by decisions making are multidimensional databases and cubes (Data cubes). The paper proposed methods for discovery of inner and unknown hierarhical dependenses among the objects for the purposes of futher automatical creation of the ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: About an improvement of multidimensional database models  Автор: Tsankova, Rumyana Strashimirova; Цанкова, Румяна Страшимирова; Нейкова, Мила Р.; Neykova, Mila R.; Pavlova, Raina Дата: 2005 Резюме: Multidimensional Databases are used to realize high level management processes. They are suitable for many aspects data analyses, data aggregation and decision making in OLAP management technology (On Line Analytical Processing). On the other hand they have serious disadvantage - high memory consumption. In the paper is presented improved ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Сензорна система за определяне на оптичен контраст  Автор: Джамийков, Тодор Стоянов; Маринов, Марин Беров; Dzhamiykov, Todor Stoyanov; Marinov, Marin Berov; Алексиев, Димитър рец. Дата: 2005 Резюме: Human eye reacts on the brightness of luminous objects. Nowadays integral sensors for measuring of contrast can not be found on the market. To determine the contrast between two surfaces usually, first, is measured the illumination in a point of each surface and, second, the contrast is calculated from the measured values. This conventional ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Начало на академичната информационна система – аСИС в условията на глобална мрежа  Автор: Станчев, Владимир Л.; Stanchev, Vladimir L. Дата: 1995 Резюме: The beginning in the year 1992 with working with internal computer network (UNIKOM B — national network including working with rented lines in the global networks such as BITNET, Internet etc.) provided the possibility for creation of academic information system — ASIS which works with distributed database for the teaching process — local ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Оценка на качеството на програмното осигуряване в микропроцесорните измервателни системи  Автор: Калчев, Иван Денчев; Kalchev, Ivan Denchev Дата: 1995 Резюме: The errors of the software modules controlling the input/output channels of the microprocessor measuring systems are discussed. The formulation of 'minimal quantity of test data for evaluation of above errors is investigated. Both the information stability of the algorithms and the error source identification (hardware or software) are treated in this paper. Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Object – oriented approach for designing the automated psychological questionnaires  Автор: Popandreeva, Aneliya Tsvetenova; Попадреева, Анелия Цветанова Дата: 1995 Резюме: Describes the peculiarity of the psychological questionnaire. Presents the algorithmic and the object-oriented approach for designing automotive psychological questionnaire. Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Microprocessor device for testing the heuristic thought  Автор: Pandov, Evgeni Kostadinov; Пандов, Евгени Костадинов Дата: 1995 Резюме: Presents the device for testing the mental functions. It is based over microprocessor family MC6800. The structure of the device is as the all - in - one microprocessor system. Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Microprocessor device for testing the strategy of thinking during classification  Автор: Pandov, Evgeni Kostadinov; Пандов, Евгени Костадинов Дата: 1995 Резюме: Classification is the general problem of the mind functions. For its testing is designed the device. The architecture is based on microprocessor family MC6800. Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Анализ на производителността на някои матрични алгоритми за паралелни компютри  Автор: Егоров, Алексей Егорович; Egorov, Aleksey Egorovich; Николова, Нина Георгиева; Nikolova, Nina Georgieva Дата: 1995 Резюме: Algorithms for matrix computations are among the most widely used computational tools in science and engineering. Due to the recent trends in the design of computer architectures, scientific and engineering research is becoming increasingly dependent upon development and implementation of efficient parallel algorithms on modern high performance ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: A process simulation and information traffic investigation in digital network medium  Автор: Egorov, Aleksey Egorovich; Егоров, Алексей Егорович; Romanski, Radi Petrov; Романски, Ради Петров Дата: 1995 Резюме: The ISDN concept can be regarded as a unified approach to network development and service provision in meeting customer demands for both: transportation and application-oriented services and facilities. One of the ISDN facilities is to support LAN-ISDN interconnection and LAN-LAN communications. The paper discusses the architectural problems ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: An office system for trade – broking firms  Автор: Arnaudov, Dimo Dimitrov; Арнаудов, Димо Димитров; Noninska, Irina Stancheva; Нониска, Ирина Станчева Дата: 1995 Резюме: The basic constructs of a model, accepted as a generalized tool for a metaconceptual schema design in an abstract area, have been described in a formalized way. By performing a comparative analysis with other models, It has been proved that the generalized model discussed, has definite advantages for semantic covering and interpretation of ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Формализиране на обобщено моделно средство за концептуално описание на данни  Автор: Арнаудов, Димо Димитров; Розева, Анна Георгиева; Arnaudov, Dimo Dimitrov; Rozeva, Anna Georgieva Дата: 1995 Резюме: The basic constructs of a model, accepted as a generalized tool for a metaconceptual schema design in an abstract area, have been described in a formalized way. By performing a comparative analysis with other models, It has been proved that the generalized model discussed, has definite advantages for semantic covering and interpretation of ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Нов алгоритъм за определяне на максималното изоморфно пресичане на два графа (MIIA)  Автор: Стойчев, Стойчо Димитров; Stoychev, Stoycho Dimitrov; Масух, Акрам Милад; Massuh, Akram Milad Дата: 1995 Резюме: A new algorithm for defining the maximum isomorphic intersection of two graphs is described. This algorithm uses new algorithm (VSEPARN) for determination of the orbits of graph automorphism group. Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Нов алгоритъм за определяне на изоморфното влагане на граф (SIA)  Автор: Стойчев, Стойчо Димитров; Масух, Акрам Милад; Stoychev, Stoycho Dimitrov; Massuh, Akram Milad Дата: 1995 Резюме: A new algorithm for defining whether or not given graph is subgraph of another graph is described. This algorithm uses new algorithm (VSEPARN) for determination of the orbits of the graph automorphism group. Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Разпознаване на символи с помощта на невронна мрежа  Автор: Гочев, Гочо Вълев; Gochev, Gocho Valev; Трифонов, Иван; Trifonov, Ivan; Шалявски, Цветан Митков; Shalyavski, Tsvetan Mitkov; Вучков, Иван Иванов; Vuchkov, Ivan Ivanov Дата: 1995 Резюме: A preliminary processing has been done on the input image. Each character in the image is being extracted and centered within an input field. The information from this field is then feeded to a neural network for recognition of the character. A two layer network of sigmoid neurons has been chosen. Backpropagation learning rule is used. To ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Предварителна обработка на изображения със символна информация  Автор: Гочев, Гочо Вълев; Gochev, Gocho Valev; Шалявски, Цветан Митков; Shalyavski, Tsvetan Mitkov; Трифонов, Иван; Trifonov, Ivan Дата: 1995 Резюме: A gray-scaled input image with high degree of noise is being processed. Symbols are not centered. The task is to separate the digits; to filter the noise and after that to center the symbols in a particular input field. Noise reduction is made. A binary threshold value is calculated. Heuristic. algorithms are used for improving the quality ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Компютърно зрение и невронни мрежи  Автор: Гочев, Гочо Вълев; Gochev, Gocho Valev Дата: 1995 Резюме: Computer vision and neural network problems are discussed. Computer vision information model is analyzed. Some author's methods and algorithms are used. The relationship between computer vision and neural network is examined. Библиотека:
    TECHNICAL UNIVERSITY - SOFIA
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    Заглавие: Някои проблеми на оптималното проектиране на рекурсивни цифрови филтри.  Автор: Стефанова, Стела Атанасова; Stefanova, Stela Atanasova Дата: 1995 Резюме: This paper is dedicated to optimization design of one- and two- dimatianal HR digital filters. For purposes of this design are stated the following problems: — Simultaneous approximation of magnitude and group delay responses of 'IR digital filters. The stated vector optimization problem is solved by minimax criteria. — Approximation of ... Библиотека:
    TECHNICAL UNIVERSITY - SOFIA

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