# Michael S. Rosenberg’s Laboratory

Computational Evolutionary Biology & Bioinformatics

E-mail: msr@asu.edu
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## h2-center index

The h-index describes an h×h square under the citation curve containing h2 citations. Bornmann et al. (2010) suggest dividing the citation curve into three sections based on this square and describing each section as the percent of all citations found within the section.

The h2-center index is the percent of citations found within the h-square. It is calculated as:$$h_\text{center}^2=\frac{h^2}{C^P}\times 100$$

### History

Year$$h_\text{center}^2$$
199750.0000
199830.7692
199925.0000
200037.3134
200127.0677
200220.4167
200322.0708
200420.6838
200520.0000
200619.1327
200719.1518
200819.1005
200922.8411
201020.6674
201121.0134
201220.2331
201320.7860
201422.8113
201523.5342
201623.0004
201721.7353

## References

• Bornmann, L., R. Mutz, and H.-D. Daniel (2010) The h index research output measurement: Two approaches to enhance its accuracy. Journal of Informetrics 4:407–414.