Scientific Impact Vitality: The Citation Currency Ratio and Citation Currency Exergy Indicators
Abstract: Publication and impact measures for individual scientists are used worldwide for various purposes such as funding, promotion, and consequently, the development of such indicators comprises a fertile research area. In this article,we propose two simple citation-based indicators, a dimensionless citation currency ratio (CCR) and a size-dependent citation currency exergy (CCX) which are noncumulative indicators measuring current citation performance. These help to identify scientists who are at different stages of their career, with rising, steady, or fading visibility. Using a small-scale coherent sample of scientists from DLPB, Google Scholar and the recently published so-called Stanford list [8], we demonstrate the applicability of these ideas and show that our methods provide substantial promise for future use.
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