Comprehensive Quantitative Analysis of Country Publication Activity according to Scimago Journal and Country Rank Portal Data.

Objective: Analysis of the evolution of methods of analysis of publication activity and citation and development of new analytical tools for their analysis: interdisciplinary coefficients, trend diagnostic chart, binary matrix clustering algorithm. Methods: The results of scientometric analysis of the occurrence of the term Activity Index using Google Books and Google Scholar, as well as SJR database were used as research materials. In addition to scientometric analysis, diagnostic and matrix analysis methods were used as research methods. Results: Based on the SJR database (1996-2019), interdisciplinarity coefficients for subject categories and subject area were constructed and calculated for the first 50 countries. The same database allowed the construction of a trend diagnostic chart in the coordinates Activity Index and Average Growth Rate for Documents in order to identify the leaders and outsiders, as well as catch-up countries and countries losing their publication potential. These charts are plotted for the top 20 countries and the top 20 subject categories. For these countries and subject categories, matrices for Activity Index (2019) and Attractivity Index (2017 - 2019) as well as binary matrices for Activity Index (50×20 dimension) before and after applying the clustering algorithm (2019) are constructed. Conclusion: The calculations performed with relative indices can be useful in planning research and scientific collaboration between countries, as they show the comparative advantages and weaknesses of country scientific systems, and also facilitate in finding partner countries for the implementation of joint scientific programs or projects that are mutually beneficial. In the future, it is advisable to build a trend diagnostic chart, when instead of calculating an increase in publication activity over the last three years, an increase in Activity Index values is considered. [ABSTRACT FROM AUTHOR]