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SCImago Journal Rank (SJR)is a portal that includes the journals and country scientific indicators developed from the information contained in the Scopus database (Elsevier). It is also a prestige metric based on the idea that "all citations are not created equal." With SJR, the subject field, quality and reputation of the journal has a direct effect on the value of a citation. Using the Google Page Rank algorithm, it was developed by a research group from the Consejo Superior de Investigaciones Científicas (CSIC), University of Granada, Extremadura, Carlos III (Madrid) and Alcalá de Henares.
Was developed using Elsevier Scopus database citation data.
Is weighted by the prestige of the journal, thereby ‘leveling the playing field’ among journals
Eliminates manipulation: raise the SJR ranking by being published in more reputable journals
‘Shares’ a journal’s prestige equally over the total number of citations in that journal
Normalizes for differences in citation behavior between subject fields