The citation speed index: A useful bibliometric indicator to add to the h index |
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| Authors: | Lutz Bornmann Hans-Dieter Daniel |
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| Institution: | 1. ETH Zurich, Professorship for Social Psychology and Research on Higher Education, Zähringerstr. 24, CH-8092 Zurich, Switzerland;2. ETH Zurich, Professor for Social Psychology and Research on Higher Education, Zähringerstr. 24, CH-8092 Zurich, Switzerland;3. University of Zurich, Evaluation Office, Mühlegasse 21, CH-8001 Zurich, Switzerland;1. Center for Surgery and Public Health, Division of Urologic Surgery, Brigham and Women''s Hospital, Harvard Medical School, Boston, MA, USA;2. Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany;3. Department of Pediatric Urology, Boston Children''s Hospital, Harvard Medical School, Boston, MA, USA;4. Department of Urology, Marienhospital Herne, Ruhr-University Bochum, Herne, Germany;1. School of Software, Dalian University of Technology, Dalian 116024, PR China;2. Center for Molecular Medicine, School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, PR China;1. Resident, Temple University Hospital Podiatric Surgical Residency Program, Philadelphia, PA;2. Associate Professor, Department of Podiatric Surgery, Temple University School of Podiatric Medicine, Philadelphia, PA |
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| Abstract: | The scientific impact of a publication can be determined not only based on the number of times it is cited but also based on the citation speed with which its content is noted by the scientific community. Here we present the citation speed index as a meaningful complement to the h index: whereas for the calculation of the h index the impact of publications is based on number of citations, for the calculation of the speed index it is the number of months that have elapsed since the first citation, the citation speed with which the results of publications find reception in the scientific community. The speed index is defined as follows: a group of papers has the index s if for s of its Np papers the first citation was at least s months ago, and for the other (Np ? s) papers the first citation was ≤s months ago. |
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