Universality of citation distributions: Toward an objective measure of scientific impact
Top Cited Papers
- 11 November 2008
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 105 (45) , 17268-17272
- https://doi.org/10.1073/pnas.0806977105
Abstract
We study the distributions of citations received by a single publication within several disciplines, spanning broad areas of science. We show that the probability that an article is cited c times has large variations between different disciplines, but all distributions are rescaled on a universal curve when the relative indicator c f = c / c 0 is considered, where c 0 is the average number of citations per article for the discipline. In addition we show that the same universal behavior occurs when citation distributions of articles published in the same field, but in different years, are compared. These findings provide a strong validation of c f as an unbiased indicator for citation performance across disciplines and years. Based on this indicator, we introduce a generalization of the h index suitable for comparing scientists working in different fields.Keywords
All Related Versions
This publication has 26 references indexed in Scilit:
- Citation StatisticsStatistical Science, 2009
- What do citation counts measure? A review of studies on citing behaviorJournal of Documentation, 2008
- Does the h index have predictive power?Proceedings of the National Academy of Sciences, 2007
- National scientific facilities and their science impact on nonbiomedical researchProceedings of the National Academy of Sciences, 2007
- Scaling and Universality in Proportional ElectionsPhysical Review Letters, 2007
- Lifting the crown—citation z-scoreJournal of Informetrics, 2007
- Index aims for fair ranking of scientistsNature, 2005
- The scientific impact of nationsNature, 2004
- Evidence of complex citer motivationsJournal of the American Society for Information Science, 1986
- POWER LAW RELATIONS IN SCIENCE BIBLIOGRAPHY—A SELF‐CONSISTENT INTERPRETATIONJournal of Documentation, 1971