What are scientific leaders? The introduction of a normalized impact factor
Abstract
We define a normalized impact factor suitable to assess in a simple way both the strength of scientific communities and the research influence of individuals. We define those ones with NIF ≥ 1 as being scientific leaders since they would influence their peers at least as much as they are influenced by them. The NIF is distinguished because (a) this has a clear and universal meaning being applicable with equal efficiency to individuals belonging to scientific communities with quite different publication and citation traditions and (b) this is robust against self-citation expedient. This is eventually applied to a community derived from the list of outstanding referees recognized by the American Physical Society in 2008.
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