Перегляд за Автор "Yanholenko, Olha"
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Документ Developing the Key Attributes for Product Matching Based on the Item’s Image Tag Comparison(2020) Cherednichenko, Olga; Yanholenko, Olha; Kanishcheva, OlgaWith the constant growth of the number of products on e-marketplaces, buyers feel hard to find and choose items that would satisfy all their needs and expectations. Search and filtering algorithms of recommender systems, although are striving to help users, still fail quite often due to incomplete and inaccurate description of items. The given work suggests to combine analysis of both item description and item image in order to construct groups of similar items. Since a person can define whether two items are similar or not looking at two images and a brief description, it is suggested to form a set of similar items based on users’ judgments and then to extract the core of keywords for the specific type of products. Further, it is proposed to use the given core to evaluate the similarity of any new item added to the definite group. The case study deals with the building of the core of keywords for sneakers. The developed key attributes allow matching the items with a high precision, thus, proving the effectiveness of the method of the core construction.Документ Issues of Web-based monitoring implementation in higher education(2014) Cherednichenko, Olga; Yanholenko, Olha; Liutenko, Iryna Victorivna ; Norbutaev, AbduganiThe paper is devoted to technology of web-based monitoring in higher education. It consists of three processes: data sources searching, data retrieval and indicators measurement. Data sources searching based on topic-focused web crawling provides a collection of potentially useful web pages. Data retrieval is aimed at clustering of collected web pages and extraction of raw data from them. Indicators measurement represents a measurement model for calculation of indicators’ values. The suggested technology is implemented on the basis of multiagent approach.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 Modern problems of computer science and IT-education(Premier Publishing s.r.o., Vienna, Austria, 2020) Aleksiyev, Volodymyr; Bilova, Mariia; Borysova, Natalia; Cherednichenko, Olga; Fedorchenko, Volodymyr; Goloskokov, Alexander; Goloskokova, Anna; Harasymchuk, Oleh; Havrylova, Alla; Holubnychyi, Dmytro; Ivashchenko, Oksana; Kalachova, Veronika; Kozulia, Mariia; Kozulia, Tatiana; Liutenko, Iryna Victorivna ; Melnyk, Karina; Melnyk, Marharyta; Milov, Oleksandr; Opirskyy, Ivan; Romaschenko, Natalya; Ryabukha, Yurii; Salo, Nataliia; Shmatko, Olexander; Soroka, Mykhailo; Tretiak, Viacheslav; Trystan, Andrii; Vlasov, Andrii; Vovk, Maryna; Yanholenko, Olha; Yevseiev, S. P.The collective monograph highlights modern problems of development and using information technologies for resolving some issues in different domain areas. The proposed theoretical methodologies, models and practical approaches are considered and investigated in the context of IT-education, software engineering, artificial intelligence and cybersecurity. Every chapter describes methods, efficient algorithms and resolutions specific for the particular domain area and field of knowledge.Документ Multi-Agent Modeling of Project Management Processes in Distributed Teams(2021) Cherednichenko, Olga; Matveiev, Oleksandr; Yanholenko, Olha; Maneva, RositsaChanges in the business environment, the innovative nature of projects, lack of necessary skills of project team members lead to increased uncertainty and inability to plan with a given degree of accuracy. Such projects use adaptive project and program management methodologies. In the field of information technology, the use of multi-agent systems is of particular interest. In the context of the use of multi-agent systems for the design of intelligent systems for various purposes, the development and study of a model and software implementation of a prototype of an agent platform are relevant. The aim of this work is to develop and research an agent platform that can be implemented in the work of the distributed team in order to improve the assignment of tasks. The paper presents the formal agent architecture as a basis of multi-agent model. The task assignment is a case study to implement and test multi-agent model prototype. The agent platform is developed based on Kotlin programming language. A prototype of the agent platform based on the FIPA specification allows to increase the productivity, scalability and interoperability of multiagent system.Документ Towards modeling of comprehensive assessment for licensing in higher education(Технологический Центр, 2013) Cherednichenko, Olga; Yanholenko, Olha; Liutenko, Iryna Victorivna ; Pylypenko, A.In the modern society information technologies, services, quality become the determinative factors of success of any business. The questions of quality management are especially relevant in social sphere, since organization oriented on quality of its processes provides the improvement of people living standards. Information computer technologies (ICT) are the powerful tool for increasing the performance of decision-making processes. Formalization of management problems and adequate mathematical models provide ICT with techniques and methods of solving the application problems in different domains and improving business performance. Higher education is a unique social and economic environment. The quality of its functioning influences many processes of successive development of society.Therefore elaboration of ICT in higher education domain remains the challenging problem for specialists in computer sciences.Документ Towards Structuring of Electronic Marketplaces Contents: Items Normalization Technology(2020) Cherednichenko, Olga; Yanholenko, Olha; Vovk, Maryna; Sharonova, NataliiaThe E-commerce industry is going strong and is bringing a great profit to its stakeholders. However, there is probably no buyer of the e-marketplace who has not faced the issues connected with inappropriate search results or inadequate filtering and recommendation of irrelevant products. Modern search and collaborative filtering algorithms of e-commerce systems do work well with the input data of high quality but the reality is that often items’ description contains inaccuracies and incompleteness, which negatively affects the results. The given paper suggests the concept of e-marketplace items normalization which goal is to provide the unified and standardized patterns of items inside the system that can be used by search and filtering algorithms. Items normalization is implemented based on the algebra of predicates models specified in this work. The case study deals with constructing normalized models of knapsacks items from the online sports store. The developed models allowed to build 141 normalized item patterns with a unified set of attributes and their values.Документ Towards web-based monitoring framework for performance measurement in higher education(Rózsadomb Contact Kft nyomdájában, 2013) Cherednichenko, Olga; Yanholenko, OlhaThe given work represents web-based monitoring framework for measuring performance of functioning of higher education establishment. High-level key performance measures for higher education are suggested. The models forming the basis for web-based monitoring framework and their goals are presented. Multi-agent architecture is suggested for implementation of the framework.Документ Web-Based Monitoring and Evaluation: Research Activity Assessment Case Study(EDIS Publishing Institution of the University of Zilina, 2013) Cherednichenko, Olga; Yanholenko, Olha; Iakovleva, OlenaThe work is devoted to issues of monitoring and evaluation system development. It is suggested to use the web as the source of data for monitoring. The assessment of web-based indicators for monitoring is realized with the help of Rasch model. The application of suggested approach is illustrated by the case study of universities research activity assessment.