Abstract:In this paper, an approach is developed that allows one to solve an applied problem of identifying hidden factors of geopolitical influence. It uses the principal component analysis. The solution of the problem is based on the principal components and the method of informative selection of the components of the response of the linear regression model. A numerical example is given on the basis of data on the cost of armament of a number of leading countries.
This article provides prognosis of COVID-19 spread in Chinese province Hubei from January 22 2020 using SIR model. To compare the results with real data, we use statistics obtained by Johns Hopkins University.
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