Y
Yelyzaveta Meleshko
Researcher at National Technical University
Publications - 24
Citations - 58
Yelyzaveta Meleshko is an academic researcher from National Technical University. The author has contributed to research in topics: Computer science & Recommender system. The author has an hindex of 2, co-authored 15 publications receiving 12 citations.
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Journal ArticleDOI
Method of identification bot profiles based on neural networks in recommendation systems
TL;DR: The experiments have shown that the neural network that analyzes only the numbers of different ratings in a profile, detects bot profiles with high accuracy, that use Random attack regardless of the number of target items for each bot.
Journal ArticleDOI
Modeling strategies for information influence dissemination in social networks
Anas M. Al-Oraiqat,Oleksandr Ulichev,Yelyzaveta Meleshko,Hazim S. AlRawashdeh,Oleksii Smirnov,Liudmyla Polishchuk +5 more
TL;DR: This research presents a thorough study of the strategies deployed for information dissemination on social networks, modeled for identifying factors proving pivotal in influencing public opinions, based on computer modeled of the social network structure alongside modeling of the behavior of network users.
Journal ArticleDOI
Developing a model of the dynamics of states of a recommendation system under conditions of profile injection attacks
TL;DR: A method for determining the optimal frequency of checking a recommendation system for information attacks to optimize the overall costs of a system was developed and will enable the owners of websites with recommendation systems to minimize their financial costs to provide their information security.
Journal ArticleDOI
Methodology of probabilistic analysis of state dynamics of multidimensional semiMarkov dynamic systems
TL;DR: The problem of probabilistic analysis of a complex dynamic system, which in the process of functioning passes from one state to another at random times, is considered and the methodology for calculating the conditional probabilities of the system getting into a given state at a given time t, provided that at the initial time the system was in any of the possible states is proposed.
Proceedings ArticleDOI
Computer modeling of dissemination of informational influences in social networks with different strategies of information distributors
TL;DR: In the work, the developed computer model of the distribution of information influences during information operations and information wars in virtual social networks with different information dissemination strategies considered was developed.