The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Feb 14, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (875.720) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
![Roy S Herbst](https://cdn.adscientificindex.com/pictures/64/846655.jpg)
![Peter M Glazer](https://cdn.adscientificindex.com/pictures/3f/830712.jpg)
![James Yu](/user/assets/images/profile/no-profile-photo.png)
![Maryam Lustberg](https://cdn.adscientificindex.com/pictures/a7/939599.jpg)
![Henry Soo Min Park](https://cdn.adscientificindex.com/pictures/fa/829210.jpg)
![Sanjay Aneja](https://cdn.adscientificindex.com/pictures/ec/846838.jpg)
![Eric C Ko](https://cdn.adscientificindex.com/pictures/54/829211.jpg)
![Jun Liu](/user/assets/images/profile/no-profile-photo.png)
![Errami Youssef](https://cdn.adscientificindex.com/pictures/20/830716.jpg)
![Kevin Anh Nguyen](https://cdn.adscientificindex.com/pictures/7e/854428.jpg)
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![Yang Guo](https://cdn.adscientificindex.com/pictures/cd/844545.jpg)
![Ioannis Vathiotis](https://cdn.adscientificindex.com/pictures/17/830725.jpg)
![Anna Arnal Estapé](https://cdn.adscientificindex.com/pictures/92/830721.jpg)
![Patricia Gaule](/user/assets/images/profile/no-profile-photo.png)
![Benjamin Y Lu](/user/assets/images/profile/no-profile-photo.png)
![Karishma Mehra](/user/assets/images/profile/no-profile-photo.png)
![Allison M Campbell](/user/assets/images/profile/no-profile-photo.png)
![Said Izreig](https://cdn.adscientificindex.com/pictures/5c/846937.jpg)
![Roshan Karki](https://cdn.adscientificindex.com/pictures/a9/830724.jpg)