T-index (h-mixed synthetic index)
The T-index (Ye 2010) is an h-mixed synthetic index which combines multiple metrics together into a single value. It is calculated as
$$T=100\log_{10}\left(R\times h \times C/P\right),$$where R is the R-index and C/P is the mean number of citations per publication.
History
| Year | T |
|---|---|
| 1997 | -47.7121 |
| 1998 | 128.9713 |
| 1999 | 195.0432 |
| 2000 | 241.1737 |
| 2001 | 274.4534 |
| 2002 | 307.8142 |
| 2003 | 345.5996 |
| 2004 | 379.6378 |
| 2005 | 403.7012 |
| 2006 | 432.1939 |
| 2007 | 455.0495 |
| 2008 | 472.3588 |
| 2009 | 487.4485 |
| 2010 | 496.5347 |
| 2011 | 510.7701 |
| 2012 | 526.6036 |
| 2013 | 533.2548 |
| 2014 | 541.0979 |
| 2015 | 547.4999 |
| 2016 | 552.6240 |
| 2017 | 559.8356 |
| 2018 | 561.8266 |
| 2019 | 565.8091 |
| 2020 | 570.7316 |
| 2021 | 575.1779 |
| 2022 | 578.8789 |
| 2023 | 582.8028 |
| 2024 | 584.3568 |
References
- Ye, F.Y. (2010) Two H-mixed synthetic indices for the assessment of research performance. Journal of Library and Information Studies 8:1–9.