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Документ Applıcation of Paragraphs Vectors Model for Semantic Text Analysis(2020) Gruzdo, Irina; Kyrychenko, Iryna; Tereshchenko, Glib; Cherednichenko, OlgaThe paper examined a model of paragraph vectors, as well as its methods of distributed memory and distributed bag of words. The peculiarity of this model lies in the definition of the objective functions of individual sentences and their representation in the form of some local vectors, on the basis of which a global vector is constructed, which determines the semantic component of the text as a whole. Various aspects of the application of distributed memory and distributed bag of words methods were considered, as well as the sets of algorithms of the underlying distributed memory and distributed bag of words methods, which allow obtaining distributed vectors of text parts to solve the problem of determining similar articles, where the search will be carried out key words, annotations, and articles of various sizes. It was experimentally established that Doc2Vec and its Bag-of-Words method, the most complete, allows you to determine borrowing and analogues depending on the structural elements of the text, in accordance with the review and the task. Also Bag-of-Words allows the user to make an exact picture of the lexical meaning of a word and its semantic relations in language and texts.Документ A model for estimating the security level of mobile applications: a fuzzy logic approach(2020) Yanholenko, Olha; Cherednichenko, Olga; Yakovleva, Olena; Arkatov, DenisIn this paper a model for solving the problem of estimating the security level of mobile applications was proposed. The estimation is performed based on a fuzzy inference system of the Mamdani type. The input criteria were defined as the most important security threats by applying the Analytic hierarchy process method. The pairwise comparison matrix was constructed from mobile security research on OWASP Top 10 Mobile Risks. The proposed methodology can be applied for any kind of mobile applications available for modern platforms, except specific cases when security analyst does not have a sufficient amount of information about the chosen application for performing the security level testing. Mobile security analysts can easily make further decisions about comprehensive mobile application security based on the results obtained with the help of the introduced model.Документ Modeling with Fuzzy Logic the Migration Capacity of UV-ink Components as a Factor of Potentially Harmful Pollution of Packaging(2021) Repeta, Vyacheslav; Zhydetskyy, Valeriy; Cherednichenko, Olga; Liakh, IhorThe implementation of UV-technologies has revealed problems associated with the migration of harmful components of the ink layer to the back of the packaging in contact with the packaged products. The reason for this migration is the incomplete reaction of the UV-ink components due to a decrease in the intensity of UV-radiation, the mismatch between the absorption spectrum of the photoinitiator and the spectrum of the UV-source and the inhibitory effect of oxygen. It has been established that the decay products of photoinitiators, which occupy the third position in terms of concentration content in the ink composition, have a potential ability to migrate. To prevent such migration, polymerized photoinitiators have been developed that differ from conventional ones by higher molecular weight. Accordingly, a study of the effect of the photopolymerization degree of UV-ink on the presence of residual odor, as a direct characteristic of the ability of ink components to migrate has been done. It has been found that at the photopolymerization degree of 84%, the average value of the residual odor level is 4 points, and at the photopolymerization degree of 96%, it is 2.8 points. Using the obtained data on the presence of residual odor and the data on the influence of molecular weight of photoinitiators, a knowledge base has been formed with the condition "if-then", a logical scheme has been formed and fuzzy logical equations of influence of established factors on the migration capacity of UV-ink have been constructed. The establishment of a universal set and evaluation terms has made it possible to form a quantitative indicator of migration of UV-ink components. The formed fuzzy knowledge base has been checked when modeling with the help of the Fuzzy Logic Toolbox system of the Matlab technological calculation environment according to Mamdani principle, using the method "Center of gravity" for the dephasification operation. The suggested method of calculating the migration capacity of UV-inks has made it possible to construct a two-factor forecasting model.Документ Анализ проблемы количественного оценивания качества в системе высшего образования(Технологический центр, 2012) Чередниченко, Ольга Юрьевна; Лютенко, Ирина ВикторовнаВ статье рассмотрены существующие принципы и подходы к оценке качества различных объектов, а также особенности оценки качества образования, поставлена задача синтеза модели оценки качества в образовательных системах, обоснован выбор модели сетевого комплексного оценивания.Документ Розробка інформаційно-пошукової системи ідентифікації та вимірювання результатів діяльності(Харківський національний університет Повітряних Сил ім. Івана Кожедуба, 2016) Чередніченко, Ольга Юріївна; Янголенко, Ольга ВасилівнаРозглянуто питання побудови інформаційної системи для збору, видобування та вимірювання значень показників оцінки результатів діяльності. Реалізація інформаційної системи запропоновано на прикладі визначення оцінок організації процесу наукової діяльності вищого навчального закладу. Розроблено концептуальну модель веб-моніторингу. Визначено джерела даних та метод збору даних на прикладі показника оцінки наукової діяльності. Запропоновано агентно-орієнтовану парадигму для розробки архітектури інформаційної системи. Проведено апробацію інформаційної системи та досліджено результати експериментів.