w-index (Anania and Caruso)
Properties
- Metric Type: Core Metric
- Publication Focus: All Publications
- Citation Focus: All Citations, Core Citations
Description
The w-index (Anania and Caruso 2013) is a variant of the h-index, where h includes a fractional component representing the proportion of the total citations (CT) which are above and beyond those necessary to achieve h. It can be calculated as:
$$w=h+\left(1-\frac{h^2}{C_T}\right).$$w will always be between h and h+1. The authors also described a very similar metric known as the k-index (Anania and Caruso); w will always be equal to or greater than k.
History
| Year | w |
|---|---|
| 1997 | 1.5000 |
| 1998 | 3.4375 |
| 1999 | 3.7955 |
| 2000 | 5.7059 |
| 2001 | 6.7568 |
| 2002 | 8.7519 |
| 2003 | 10.7494 |
| 2004 | 12.7746 |
| 2005 | 15.7611 |
| 2006 | 16.8105 |
| 2007 | 19.7982 |
| 2008 | 21.8042 |
| 2009 | 24.7902 |
| 2010 | 25.8136 |
| 2011 | 28.8067 |
| 2012 | 32.7843 |
| 2013 | 33.8025 |
| 2014 | 34.8144 |
| 2015 | 35.8238 |
| 2016 | 35.8405 |
| 2017 | 37.8357 |
| 2018 | 37.8479 |
| 2019 | 37.8584 |
| 2020 | 38.8605 |
| 2021 | 39.8627 |
| 2022 | 41.8574 |
| 2023 | 41.8647 |
| 2024 | 42.8650 |
| 2025 | 44.8557 |
References
- Anania, G., and A. Caruso (2013) Two simple new bibliometric indexes to better evaluate research in disciplines where publications typically receive less citations. Scientometrics 96:617-631.