Ком'пютерні науки та інженерія

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    Concept of versions of electronic documents in databases
    (Видавництво Львівської політехніки, 2013) Myshchyshyn, Vitalii; Zhezhnych, Pavlo
    The use of computer technologies for work with documents leads to appearance of such notion as electronic document. There can be entered the notion “Electronic document version” because of time properties in database. Version is a depending from time value. Electronic document version notion is methods of saving and display the part of electronic document version data in database.
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    English poetry analysis with the assistance of database
    (Видавництво Львівської політехніки, 2013) Bondaruk, Olena
    The article illustrates the role of database application in linguistic researches, namely in master theses at the applied linguistics department of Lviv National Polytechnic University. The novelty of the analysis lies in exploring the linguistic phenomena using the database management systems. The analysis is exemplified by the exploration of database that is used to resolve the linguistic issues and to optimize the examination of lexical features of English poetry in the late 16th - early 17th centuries.
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    Дослідження ефективності методів паралельного пошуку інформації в файлах баз даних
    (Видавництво Національного університету «Львівська політехніка», 2009) Лісовець, Володимор
    The m-parallel method of sequential field searching and two variants of m-parallel bloch field searching method are considered. We research the effectiveness of these methods for different probbility distribution law of field access. The mathematical expectation of number of parallel comparison necessary for field searching in files is taken as a criterion of effectiveness. The effectiveness of the methods is compared and analyzed. Optimal strategy of field searcing in sequenced files stored in external memory of multiprocessing system is made. In this case the mathematical expectation of total time needed for field searching in files is taken as a criterion of effectiveness.
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    Recognition of People by Photographs
    (Видавництво Національного університету «Львівська політехніка», 2009) Kazimov, Tofig Hasanaga; Mahmudova, Shafagat Jabrail qizi
    The technique of the person search in base of images on its photograph is considered. On the basis of the chosen identification points of the face, distances between them are calculated Identification attributes of the face are defined on specially chosen way which differs from earlier available attributes.