The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal.
[2] As a measure of importance, the Eigenfactor score scales with the total impact of a journal.
All else equal, journals generating higher impact to the field have larger Eigenfactor scores.
Citation metrics like eigenfactor or PageRank-based scores reduce the effect of self-referential groups.
[7] While the Eigenfactor score is correlated with total citation count for medical journals,[8] these metrics provide significantly different information.