Słowa kluczowe: technical diagnostics, wavelet analysis, Wigner-Ville transformation, electromechanical systems, electric drive, nonlinear systems, Poincaré-Lindstedt method, electric circuits analysis, dynamical systems, van der Pol equation, PTSP, evolutionary algorithm, parallel evolutionary algorithm, hybrid algorithm, combinatorial logic, PLD, logical function minimization, Kapralski algorithm, Kazakov algorithm, PKmin, Espresso, Metaheuristics, Evolutionary Algorithms, Differential Evolution, Population Size Reduction, Clustering, biometrics, authentication, processing and image analysis, image filtering, gradient methods, Haar-like features, classification, neural network, fuzzy modeling, exploratory data analysis, cluster analysis, particle swarm optimization algorithm, motivation, consensus, attitude patterns, opinion changing, influence matrix, decision support systems, fuzzy preference relations, soft consensus, consensus reaching process, fairness, multidimensional datasets, dimensionality reduction, topology preservation