Volume 78, Number 3, May 2007
Article Number 30002
Number of page(s) 6
Section General
Published online 11 April 2007
EPL, 78 (2007) 30002
DOI: 10.1209/0295-5075/78/30002

Self-citation corrections for the Hirsch index

M. Schreiber

Institut für Physik, Technische Universität Chemnitz - 09107 Chemnitz, Germany

received 23 November 2006; accepted in final form 12 March 2007; published May 2007
published online 11 April 2007

I propose to sharpen the index h, suggested by Hirsch as a useful index to characterize the scientific output of a researcher, by excluding the self-citations. Performing a self-experiment and also discussing in detail two anonymous data sets, it is shown that self-citations can significantly reduce the h index in contrast to Hirsch's expectations. This result is confirmed by an analysis of 13 further data sets.

01.30.-y - Physics literature and publications.
01.85.+f - Careers in physics and sciences.
01.90.+g - Other topics of general interest.

© Europhysics Letters Association 2007