引用影响因子计算器
使用此引用影响因子计算器快速获得准确的计算结果。
Estimated H-Index
28
Estimated H-Index vs Total Publications
公式
## How the H-Index Works A researcher has an h-index of h if h of their papers have each been cited at least h times. ### Estimation An approximate h-index can be estimated as: **h ≈ floor(sqrt(Total Citations))** This approximation (Hirsch's original heuristic) works well for typical citation distributions. The exact h-index requires sorting papers by citation count. ### Context - Early career: h = 5-10 - Mid career: h = 15-30 - Senior researcher: h = 30-60 - Field leaders: h = 60+
计算示例
A researcher has 50 publications with 800 total citations.
- 01Average citations: 800 / 50 = 16.0 per paper
- 02H-index estimate: floor(sqrt(800)) = floor(28.3) = 28
常见问题
Why is this an estimate?
The exact h-index requires the full list of citations for each paper, sorted in descending order. This formula gives a useful approximation.
Can the h-index decrease?
In theory no, since it only counts papers that have reached the threshold. In practice, corrections or retractions could lower it.
How does h-index compare across fields?
Citation rates vary enormously by field. An h-index of 20 in mathematics may be equivalent to 50 in biomedical sciences.