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 | 8.3278 |
| 1999 | 15.4630 |
| 2000 | 23.9458 |
| 2001 | 35.7381 |
| 2002 | 56.5433 |
| 2003 | 77.6081 |
| 2004 | 106.2676 |
| 2005 | 137.7393 |
| 2006 | 173.2036 |
| 2007 | 203.4334 |
| 2008 | 236.1527 |
| 2009 | 266.4421 |
| 2010 | 310.6179 |
| 2011 | 353.0169 |
| 2012 | 391.1719 |
| 2013 | 428.6407 |
| 2014 | 464.2353 |
| 2015 | 499.6000 |
| 2016 | 529.4403 |
| 2017 | 555.6374 |
| 2018 | 585.4681 |
| 2019 | 614.0072 |
| 2020 | 643.6500 |
| 2021 | 676.2775 |
| 2022 | 703.6028 |
| 2023 | 727.0178 |
| 2024 | 753.9684 |
| 2025 | 763.9917 |
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.