The academic community has long been demanding more transparency, choice and accuracy in journal assessment. Currently, the majority of academic output is evaluated based on a single ranking of journal impact. Bibliometricians have been exploring new methods to provide deeper insight. Within the field of journal evaluation, two of the most exciting are Source Normalized Impact per Paper (SNIP) and SCImago Journal Rank (SJR), those values are provided here free of charge.
Journal Metrics November release: Introducing the world first rolling year journal metric calculation for 2011!
On November 10, refreshed journal metrics for SNIP and SJR were released. The normal release schedule for SNIP and SJR used to be a bi-yearly one. This is the first release that now includes the world first rolling year metric for SNIP and SJR.
This rolling metric is introduced based on extensive user feedback indicating the wish for having the highest metric currency possible. We're now able to publish a metric for 2011 even though 2011 is not yet completed. The 2011 metric will be based on a complete year's Scopus data from 1 June 2010 to 31 May 2011. There is a 3 month difference between data loading in Scopus and final publishing in Scopus and on Journal Metrics.com. The metrics for 1999-2010 are calendar year metrics as normal.