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 | 133.5123 |
| 1999 | 195.0432 |
| 2000 | 241.9792 |
| 2001 | 275.5066 |
| 2002 | 314.5463 |
| 2003 | 345.3013 |
| 2004 | 379.5212 |
| 2005 | 407.0784 |
| 2006 | 432.0761 |
| 2007 | 454.8118 |
| 2008 | 472.2699 |
| 2009 | 487.3195 |
| 2010 | 496.4337 |
| 2011 | 510.6663 |
| 2012 | 526.3861 |
| 2013 | 533.1113 |
| 2014 | 541.0485 |
| 2015 | 547.4304 |
| 2016 | 552.5696 |
| 2017 | 559.7829 |
| 2018 | 561.7196 |
| 2019 | 565.7409 |
| 2020 | 570.7210 |
| 2021 | 575.1205 |
| 2022 | 578.7878 |
| 2023 | 582.1324 |
| 2024 | 584.9470 |
| 2025 | 587.7451 |
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.