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2016 ; 14
(9
): e1002541
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Relative Citation Ratio (RCR): A New Metric That Uses Citation Rates to Measure
Influence at the Article Level
#MMPMID27599104
Hutchins BI
; Yuan X
; Anderson JM
; Santangelo GM
PLoS Biol
2016[Sep]; 14
(9
): e1002541
PMID27599104
show ga
Despite their recognized limitations, bibliometric assessments of scientific
productivity have been widely adopted. We describe here an improved method to
quantify the influence of a research article by making novel use of its
co-citation network to field-normalize the number of citations it has received.
Article citation rates are divided by an expected citation rate that is derived
from performance of articles in the same field and benchmarked to a peer
comparison group. The resulting Relative Citation Ratio is article level and
field independent and provides an alternative to the invalid practice of using
journal impact factors to identify influential papers. To illustrate one
application of our method, we analyzed 88,835 articles published between 2003 and
2010 and found that the National Institutes of Health awardees who authored those
papers occupy relatively stable positions of influence across all disciplines. We
demonstrate that the values generated by this method strongly correlate with the
opinions of subject matter experts in biomedical research and suggest that the
same approach should be generally applicable to articles published in all areas
of science. A beta version of iCite, our web tool for calculating Relative
Citation Ratios of articles listed in PubMed, is available at
https://icite.od.nih.gov.