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 03, 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 (1.131.752) 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
Automatic Control | Optimisation | Transportation | Water System
H-Index Metrics
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H-Index91
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i10 Index274
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Citation Counts32,930
Rankings
Operations research | decision analysis | financ
H-Index Metrics
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H-Index83
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i10 Index284
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Citation Counts26,742
Rankings
bioremediation | phytoremediation | environmental engineering | environmental biotechnolog
H-Index Metrics
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H-Index81
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i10 Index208
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Citation Counts21,595
Rankings
Operations Reserarch | Decision analysis | Business Analytics | Financ
H-Index Metrics
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H-Index71
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i10 Index154
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Citation Counts14,202
Rankings
Big Data Analytics | Data Streams | Query Optimization | Database System
H-Index Metrics
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H-Index70
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i10 Index140
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Citation Counts17,434
Rankings
Contaminant transport in environmental system
H-Index Metrics
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H-Index58
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i10 Index122
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Citation Counts7,994
Rankings
Rankings
Environmental Engineering | Geochemistry | Hydrolog
H-Index Metrics
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H-Index56
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i10 Index166
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Citation Counts9,316
Rankings
Nanocatalysis | CO2 hydrogenation | Dry reforming of methane | Air pollution contro
H-Index Metrics
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H-Index52
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i10 Index105
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Citation Counts7,713
Rankings
Environmental Analytical Chemistry | Microextraction | Environmental Organic Chemistry | Supramolecular Chemistr
H-Index Metrics
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H-Index52
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i10 Index92
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Citation Counts11,225
Rankings
Rankings
Sustainability assessment | Sustainable energy | Mobility | Insularity | Greening heritag
H-Index Metrics
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H-Index51
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i10 Index124
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Citation Counts9,592
Rankings
Banking | Financial Institutions | Financial Intermediation | Financial Regulation
H-Index Metrics
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H-Index51
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i10 Index102
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Citation Counts13,559
Rankings
Automatic control and optimization theory and applications to traffic and transportation system
H-Index Metrics
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H-Index49
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i10 Index106
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Citation Counts8,842
Rankings
Water and wastewater treatment | Waste valorisatio
H-Index Metrics
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H-Index49
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i10 Index90
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Citation Counts10,631
Rankings
Rankings
Hydrometallurgy | earth sciences | materials | waste valorization | soil and water remediatio
H-Index Metrics
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H-Index47
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i10 Index110
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Citation Counts8,733
Rankings
Rankings
Rankings
Heterogeneous Catalysis | Nanomaterials | CCU technologies | Electrocatalysis | H2 productio
H-Index Metrics
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H-Index44
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i10 Index91
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Citation Counts6,135
Rankings
Contact Mechanics | Nonsmooth Mechanics | Engineering Optimization | Computational Mechanics | Finite Element Analysi
H-Index Metrics
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H-Index44
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i10 Index150
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Citation Counts6,864
Rankings
Air pollution | human exposure | aerosol scienc
H-Index Metrics
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H-Index42
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i10 Index120
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Citation Counts6,033
Rankings
water and wastewater management | constructed wetlands | nature-based solutions | circular economy | ecological engineerin
H-Index Metrics
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H-Index41
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i10 Index77
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Citation Counts5,850
Rankings
Rankings
Swarm Intelligence | Vehicle Routing Problem | Metaheuristics | Supply Chain Management | Logistic
H-Index Metrics
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H-Index41
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i10 Index95
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Citation Counts6,237
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