q2-index
The q2-index (Cabrerizo et al. 2010) is another metric designed to describe the h-index core. It is the geometric mean of both a quantitative (h-index) and a qualitative (m-index) measure of the core,
$$q^2=\sqrt{h\times m}.$$History
Year | q2 |
---|---|
1997 | 1.0000 |
1998 | 3.0000 |
1999 | 6.2450 |
2000 | 7.0711 |
2001 | 10.0995 |
2002 | 13.5647 |
2003 | 13.6748 |
2004 | 22.0454 |
2005 | 26.5518 |
2006 | 27.3496 |
2007 | 29.8831 |
2008 | 35.1994 |
2009 | 38.7298 |
2010 | 44.0114 |
2011 | 49.0612 |
2012 | 49.1528 |
2013 | 55.3986 |
2014 | 61.7090 |
2015 | 61.7657 |
2016 | 64.2651 |
2017 | 66.0757 |
2018 | 68.0074 |
2019 | 69.0869 |
2020 | 67.2458 |
2021 | 69.1375 |
2022 | 75.2197 |
2023 | 77.6338 |
2024 | 77.9038 |
References
- Cabrerizo, F.J., S. Alonso, E. Herrera-Viedma, and F. Herrera (2010) q2-index: quantiative and qualitative evaluation based on the number and impact of papers in the Hirsch core. Journal of Informetrics 4:23–28.