p20
Properties
- Metric Type: Alternative Metric
- Publication Focus: Core Publications
- Citation Focus: Core Citations
Description
Gagolewski et al. (2022) suggested a variety of metrics that might be used to approximate the distribution of an author's citation vector, some of which were novel in a bibliometric context. p20 (which stems from economics) is the proportion of the total citations that occur in the top 20% of an author's publications. One could view it as the proportion of citations within the core, if the core were fixed as the top 20% of publications rather than defined in a manner more similar to the h-index.
History
| Year | p20 |
|---|---|
| 1997 | 0.0000 |
| 1998 | 0.2500 |
| 1999 | 0.3409 |
| 2000 | 0.6588 |
| 2001 | 0.6486 |
| 2002 | 0.5310 |
| 2003 | 0.4637 |
| 2004 | 0.3912 |
| 2005 | 0.3599 |
| 2006 | 0.3013 |
| 2007 | 0.2778 |
| 2008 | 0.2633 |
| 2009 | 0.2663 |
| 2010 | 0.2687 |
| 2011 | 0.2909 |
| 2012 | 0.2833 |
| 2013 | 0.2754 |
| 2014 | 0.2772 |
| 2015 | 0.2707 |
| 2016 | 0.2693 |
| 2017 | 0.2703 |
| 2018 | 0.2897 |
| 2019 | 0.2892 |
| 2020 | 0.2844 |
| 2021 | 0.2851 |
| 2022 | 0.3083 |
| 2023 | 0.3069 |
| 2024 | 0.3047 |
| 2025 | 0.3307 |
References
- Gagolewski, M., B. Żogała‑Siudem, G. Siudem, and A. Cena (2022) Ockham's index of citation impact. Scientometrics 127:2829-2845.