Transformation of Thematic Profiles of Serial Publications in an Information Center Documents Input System: Case Study of the VINITI RAS Database.

The study investigates the dynamics of the Russian scientific journals input stream based on the results of article classification, according to the State Rubricator of Scientific and Technical Information in the VINITI RAS Database. The authors aim to trace the changes in the information provision of the codes of the subject field Chemistry, chemical technology, and the chemical industry. The research procedure presented includes the methods of calculating the indicators that allow to automate the assessment of journals thematic profiles—the similarity and scattering coefficients. The proposed methodology facilitates the identification of trends in the thematic profiles of serial publications, i.e., growth or degradation of their headings, thus contributing to the optimization of the information center documents input stream. [ABSTRACT FROM AUTHOR]