H-index is a scientometric indicator proposed in 2005 by Jorge Hirsch to evaluate scientific productivity. The index is calculated based on the distribution of citations of works according to the formula:
A researcher (a team of researchers) holds a Hirsch index h, if h of his Np articles are cited at least h times each, while the remaining (Np-h) articles are cited no more than h times each.
The journal's impact factor is the average citation of a single article. Calculated using the formula:
The ratio of the number of citations in the estimated year of articles for the previous two years to the total number of these articles.
Citation databases-the largest curated unified database containing annotations and information about the citation of peer-reviewed scientific literature, with built-in tools for tracking, analyzing and visualizing data. The database contains 23,700 publications from 5,000 international publishers, in the fields of natural, social and humanitarian Sciences, technology, medicine and art. Scopus continuously processes, enriches and makes available a huge amount of data, while adhering to strict quality control standards to maintain database integrity.
Web of Science is an information and analytics platform that covers over 50 million entries in 12,500 journals worldwide and 120,000 conference materials in the natural, social, humanities, and arts fields. The Web of Science platform hosts several databases: Web of Science Core Collection, Russian Science Citation Index (Russian science citation index), as well as analytical tools that help evaluate information in terms of various criteria (Incites, Journal Citation Reports, Essential Citation Reports).
The Russian science citation index (RSCI) is a national information and analytical system that accumulates more than 12 million publications of Russian scientists, as well as information about the citation of these publications from more than 6000 Russian journals. It is intended not only for the operational provision of scientific research with up-to-date reference and bibliographic information, but also a powerful tool that allows evaluating the effectiveness and efficiency of research organizations, scientists, determining the level of scientific journals, etc.
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Rating of RSCI journals
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An open access search engine that indexes the full text of scientific publications in all formats and disciplines.
Google Scholar (Google Academy) is a freely available search engine that indexes the full text of scientific publications in all formats and disciplines.
Google Scholar allows you to easily perform an extensive search for scientific literature. Using a single query form, you can search in various disciplines and sources, including peer-reviewed articles, dissertations, books, abstracts, and reports published by scientific literature publishers, professional associations, higher education institutions, and other scientific organizations. Google Academy allows you to find the research that most closely matches the search query among a huge number of scientific papers.
Google Scholar classifies articles in the same way as scientists, evaluating the entire text of each article, its author, the publication in which the article appeared, and the frequency of citations of this work in the scientific literature. The most relevant results are always displayed on the first page.