It is well-known, we live in the digital industrial era and we have a lot of accumulated volumes of structured and unstructured data. The accumulated data, actually, can help us make our solutions more efficient in different areas of human activities. That is why we are trying to recognize which kind of data can resolve which kind of problem. For this purpose, we have a lot of useful techniques for assessment of the data feature importance. We are more confident in feature importance techniques when we work with n…

The consensus algorithm is a mechanism that allows you to protect the network against attacks.The work of the algorithm is to provide rules that act on the network members.Proof of Work is one of the consensus algorithms based on the calculation of a complex algorithmic problem.This algorithm requires significant computing power to maintain its performance and therefore is superfluous.An alternative algorithm -Proof of Stake does not require so many resources to maintain network performance, but has a number of sh…

The paper deals with the spectrum transformation of the signal restored by regular and irregular sampling.Irregular sampling is studied as a method of obtaining the noise-like error spectrum of the error of a restored signal.Hence the order of the output low-pass filter can be reduced, or in certain cases, this filter can be omitted.The most interesting area of application for this method may be the reproduction of a digital bitmap image.To simplify the problem, the error spectrum transformation is studied for the…