Titlebook: Data-Centric Business and Applications; ICT Systems-Theory, Tamara Radivilova,Dmytro Ageyev,Natalia Kryvinska Book 2021 The Editor(s) (if

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Adaptive Complex Singular Spectrum Analysis with Application to Modern Superresolution Methods,f the noise variance using the results of the random matrix theory. Application of the adaptive complex SSA approach as preprocessing (denoising) step to modern methods of spectral analysis (subspace-based methods) is considered in the paper. The data sequence obtained after adaptive SSA approach is

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,Assortativity Properties of Barabási-Albert Networks,ion is a first order graph metric, the assortativity is a second order one. The concept of assortativity is extensively using in network analysis. In general degree distribution forms an essential restriction both on the network structure and on assortativity coefficient boundaries. The problem of d

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Influence and Betweenness in Flow Models of Complex Network Systems,ow adjacency matrices were introduced. The concepts of strength, power, domain and diameter of influence of complex network nodes are analyzed for the purpose of determining their importance in the systems structure. The notions of measure, power, domain and diameter of betweenness of network nodes

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Practical Application of Clustering Methods in Radar Signals Recognition System,eat accuracy in the extremely complex electromagnetic environment. The binary decision tree was applied at the beginning of grouping signals received from unknown sources. The paper presents some clustering methods to radar signal recognition based on the mathematical criteria. The concepts of this

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Adaptive Semantic Analysis of Radar Data Using Fuzzy Transform,hods of multiscanning processing of signals and methods of artificial intelligence using fuzzy transformations of the universe of signals and signal images, is proposed. The possibility of its hardware and software implementation is considered. The results of computer modeling, theoretical and exper

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Approaches to Building a Chaotic Communication System,stems serve as a carrier of information signals, and means of encryption, both in hardware and in software. This work is devoted to the complex analysis of the practical implementation of a chaotic secure communication system. The generalized synchronization as a synchronization response was selecte

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Radiomeasuring Optical-Frequency Converters Based on Reactive Properties of Transistor Structures won of the transport equation under the action of optical radiation, which gave the possibility to theoretically calculate the complete resistance of the base area and obtain an analytical dependence of its components on the power of optical radiation. The authors developed a model of an optical-freq