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| hg-Index (Composite Hirsch-Egghe)× | Contemporary h-Index× | |
|---|---|---|
| Fachgebiet | Bibliometrie | Bibliometrie |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 2010 | 2007 |
| Urheber≠ | Sergio Alonso, Francisco J. Cabrerizo, Enrique Herrera-Viedma & Francisco Herrera | Antonis Sidiropoulos, Dimitrios Katsaros & Yannis Manolopoulos |
| Typ≠ | Composite author impact index | Age-discounted author impact index |
| Wegweisende Quelle≠ | Alonso, S., Cabrerizo, F. J., Herrera-Viedma, E., & Herrera, F. (2010). hg-index: a new index to characterize the scientific output of researchers based on the h- and g-indices. Scientometrics, 82(2), 391-400. DOI ↗ | Sidiropoulos, A., Katsaros, D., & Manolopoulos, Y. (2007). Generalized Hirsch h-index for disclosing latent facts in citation networks. Scientometrics, 72(2), 253-280. DOI ↗ |
| Aliasnamen | Alonso hg-index, hg index, composite h-g index | hc-index, time-weighted h-index, age-decayed h-index |
| Verwandt | 3 | 3 |
| Zusammenfassung≠ | The hg-index, proposed by Alonso, Cabrerizo, Herrera-Viedma, and Herrera in 2010, fuses the two best-known author metrics into a single composite. The h-index is robust but ignores how heavily an author's top papers are cited, while Egghe's g-index rewards those highly cited papers but can be swayed by a single outlier. The hg-index takes the geometric mean of the two, producing a value that lies between them and inherits a balance of their strengths: it remains close to the stable h-index while still responding to the citation impact captured by g. The authors showed that the geometric mean stays nearer to the smaller, more conservative h-index than the larger g-index, tempering the latter's sensitivity to extreme papers. | The contemporary h-index, introduced by Sidiropoulos, Katsaros, and Manolopoulos in 2007, modifies Hirsch's h-index to reward recent scientific activity over old laurels. The plain h-index never decreases and treats a citation earned decades ago the same as one earned last year, so a researcher who has stopped publishing can coast on an aging body of work. The contemporary index assigns each paper an age-discounted score, multiplying its citation count by a factor that shrinks as the paper grows older, and then applies the usual h-index ranking criterion to these scores. The result distinguishes currently active, recently impactful researchers from those whose reputation rests on distant achievements. |
| ScholarGateDatensatz ↗ |
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