Introduced in 2016, a family of eight indicators to analyze the publication influence of serial titles. CiteScore metrics offer more robust, timely and accurate indicators of a serial title’s impact.
CiteScore = (# citations received by a journal in one year to documents published in the three previous years) ÷ (# documents indexed in Scopus published in those same three years)
Note: CiteScore calculation is based on Scopus data, while Impact Factor is based on Web of Science data. CiteScore uses a 3-year window while Impact Factor adopts a 2-year window.
Measures contextual citation impact by taking differences in disciplinary characteristics into account; can be used to compare journals in different fields. This is a corrective metric to account for different research fields.
SNIP = (journal’s citation count per paper) ÷ (citation potential in its subject area)
A prestige metric for journals, book series and conference proceedings that weights the value of a citation based on the subject field, quality and reputation of the source. A detailed description of SJR with formulas is available.
SJR = (average # weighted citations received in a year) ÷ (# documents published in previous 3 years)