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What is Eigenfactor?
Eigenfactor® is a calculation “based on the number of times articles from the journal published in the past five years have been cited in the Journal Citation Reports® (JCR) year, but it also considers which journals have contributed these citations so that highly cited journals will influence the network more than lesser cited journals. References from one article in a journal to another article from the same journal are removed, so that Eigenfactor® Scores are not influenced by journal self-citation.” (Thomson Reuters)
How the Eigenfactor is Determined
The Eigenfactor® score of a journal is found through an estimate of the percentage of time that library users spend with that journal. It is thought that the amount of time a researcher spends with a journal measures the journal's importance within the network of academic citations.
The Eigenfactor® score of a journal is an estimate of the percentage of time that library users spend with that journal. The Eigenfactor algorithm corresponds to a simple model of research in which readers follow chains of citations as they move from journal to journal.
Type of Impact Measured: Journal, Article
Metrics Included: Eigenfactor® Score, Article Influence® Score
Information Flow Visuals
Truth & Beauty - Well-Informed Eigenfactor
Interactive visualizations based on the Eigenfactor® Metrics and hierarchical clustering to explore emerging patterns in citation networks. A cooperation between the Eigenfactor Project (data analysis)
and Moritz Stefaner (visualization).