The CiteScore was introduced by Scopus in 2016. It is a collection of eight indicators to analyze the publication influence of journal titles.
The Scimago Journal Rank is a metric for journals, book series, and conference proceedings that weight the value of a citation based on the subject area, quality, and reputation of a source.
The SNIP measures contextual citation impact by taking differences in disciplinary characteristics into account. The SNIP can be used to compare journals in different fields.
Bergstrom, C. T., West, J. D., & Wiseman, M. A. (2008). The Eigenfactor metrics. The Journal of Neuroscience, 28(45), 11433–11434. https://doi.org/10.1523/JNEUROSCI.0003-08.2008
The JIF is calculated based on a two-year period and involves dividing the number of times articles were cited by the number of articles that are citable.
