j-index (Levene)
The Levene j-index (Levene et al. 2012) is the sum of the square-root of citation counts for all publications, similar to the Redner index which is the square-root of the sum.
$$j=\sum\limits_{i=1}^{P}{\sqrt{C_i}}$$History
| Year | j |
|---|---|
| 1997 | 2.0000 |
| 1998 | 8.5241 |
| 1999 | 15.4432 |
| 2000 | 24.0349 |
| 2001 | 36.4540 |
| 2002 | 57.3180 |
| 2003 | 77.8278 |
| 2004 | 106.2308 |
| 2005 | 137.4842 |
| 2006 | 172.8227 |
| 2007 | 203.1422 |
| 2008 | 235.7556 |
| 2009 | 265.9728 |
| 2010 | 310.8492 |
| 2011 | 352.9737 |
| 2012 | 390.4864 |
| 2013 | 428.1297 |
| 2014 | 464.2590 |
| 2015 | 499.5587 |
| 2016 | 529.2233 |
| 2017 | 556.2776 |
| 2018 | 584.7820 |
| 2019 | 613.6726 |
| 2020 | 642.9894 |
| 2021 | 675.0125 |
| 2022 | 701.9088 |
| 2023 | 725.5446 |
| 2024 | 752.3312 |
| 2025 | 770.5099 |
References
- Levene, M., T. Fenner, and J. Bar-Ilan (2012) A bibliometric index based on the complete list of cited publications. International Journal of Scientometrics, Informetrics and Bibliometrics 16:1.