The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 5 years. As of Jan 04, 2026, 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 (0) 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].
Rankings
Materials Science | Electrochemistry | Batteries | Energy Storage | Nanotechnolog
H-Index Metrics
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H-Index170
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i10 Index675
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Citation Counts97,647
Rankings
Geographic Information Systems | GeoAI | Geoinformatics | Spatial Data Minin
H-Index Metrics
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H-Index156
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i10 Index759
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Citation Counts90,215
Rankings
Rankings
Advanced biological waste treatment processes | membrane technologies | alternative water resources | resource recovery | environme
H-Index Metrics
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H-Index130
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i10 Index718
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Citation Counts70,128
Rankings
Water-Food-Energy Nexus | Membrane separation | Anaerobic digestion | Resource Recovery from Wastewate
H-Index Metrics
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H-Index121
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i10 Index455
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Citation Counts49,225
Rankings
Data Analytics | Engineering Optimization | Evolutionary Computation | Smart Citie
H-Index Metrics
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H-Index117
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i10 Index499
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Citation Counts75,174
Rankings
Techno-Economic Analysis | Life-Cycle Assessment | Cost-Benefit Analysis | Life-Cycle Cost | Energy & Fue
H-Index Metrics
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H-Index114
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i10 Index373
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Citation Counts49,046
Rankings
Green Technology | Resource & Energy Recovery | Water-Waste-Energy Nexus | Membrane Technology | Solid Waste Managemen
H-Index Metrics
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H-Index112
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i10 Index462
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Citation Counts52,949
Rankings
Rankings
Environmental Technology | Greenhouse Gas Emissions | Wastewater Treatment | Microplastic
H-Index Metrics
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H-Index108
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i10 Index526
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Citation Counts40,858
Rankings
Rankings
Rankings
Rankings
Rankings
Computational intelligence | machine learning | fuzzy neural networks (FNN) | cognitive neuro-engineering | brain-computer interfac
H-Index Metrics
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H-Index101
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i10 Index503
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Citation Counts45,218
Rankings
Rankings
Rankings
public health | primary health care | complementary health care | chronic disease | agein
H-Index Metrics
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H-Index91
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i10 Index524
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Citation Counts35,758
Rankings
Computational Intelligence | Fuzzy Transfer Learning | Concept drift | Decision support system
H-Index Metrics
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H-Index90
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i10 Index398
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Citation Counts32,358
Rankings
Water treatment | Wastewater treatment | membrane technology | filtration | desalinatio
H-Index Metrics
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H-Index90
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i10 Index402
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Citation Counts29,775
Rankings
Sport Science | Sport Medicine | Clinimetrics | Research Method
H-Index Metrics
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H-Index89
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i10 Index192
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Citation Counts35,936
Rankings
Network Science | Security and Privacy | Big Data | Mathematical A
H-Index Metrics
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H-Index88
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i10 Index465
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Citation Counts31,515
Rankings
Plant Physiology | Plant Ecophysiology | Ecohydrology | Remote Sensing | Micrometeorolog
H-Index Metrics
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H-Index87
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i10 Index250
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Citation Counts30,710
Rankings
Rankings
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