Evolutionary Biological Data Science Laboratory

t-index (Singh)

Properties

• Metric Type: Alternative Metric
• Considerations and Adjustments: Time
• Publication Focus: All Publications, Core Publications
• Citation Focus: All Citations, Core Citations

Description

The t-index (Singh 2022) is an alternative metric for impact based on the information entropy of individual publications, with scaling factors based on academic age and the yearly h-index. It is calculated as:

$$t=4e^{T/T^\prime}\bar{h}_y,$$

where

$$T = \sum\limits_{i=1}^{P}\frac{c_i}{C^P}\ln\frac{c_i}{C^P}$$

and

$$T^\prime=\ln \left(10 \times \text{academic age} \right).$$

It is a bit difficult to interpret and is not guaranteed to monotonically increase.

History