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| g-Index (Egghe)× | Contemporary h-Index× | |
|---|---|---|
| Oblast | Bibliometrija | Bibliometrija |
| Porodica | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | 2006 | 2007 |
| Tvorac≠ | Leo Egghe | Antonis Sidiropoulos, Dimitrios Katsaros & Yannis Manolopoulos |
| Tip≠ | Author-level cumulative-citation impact index | Age-discounted author impact index |
| Temeljni izvor≠ | Egghe, L. (2006). Theory and practise of the g-index. Scientometrics, 69(1), 131-152. 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 ↗ |
| Drugi nazivi | Egghe g-index, Egghe index, g index | hc-index, time-weighted h-index, age-decayed h-index |
| Srodne | 3 | 3 |
| Sažetak≠ | The g-index, introduced by Leo Egghe in 2006, is an author-level bibliometric indicator designed to repair a structural weakness of Hirsch's h-index: its insensitivity to the size of the most-cited papers. Where the h-index caps the credit any single paper can earn at h, the g-index lets exceptionally cited articles raise an author's score. It is defined as the largest number g such that the g most-cited papers together accumulate at least g-squared citations. Because it rests on cumulative rather than per-paper citation counts, the g-index always equals or exceeds the h-index and rewards researchers whose impact is concentrated in a few landmark works as well as those with broad, steady output. | 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. |
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