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 Jan 29, 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 (873.688) 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].
* Total H IndexRankings
Ranking Based On Selection: 1
AI-LLMs
IoTs
Quantum Computing
Cybersecurity
Applied Crypto and Network Security
Metrics
H-Index
i10 Index
Citation Counts
145
550
74,771
* Total H IndexRankings
Ranking Based On Selection: 2
composite materials
nanocomposites
biocomposites
biofibers
cellulose nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
85
221
33,398
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
81
372
31,482
* Total H IndexRankings
Ranking Based On Selection: 4
Cellulose and lignin biorefinery
lignin valorization
biomass derived nanoparticles
novel enzymes for modification of plant ce
Metrics
H-Index
i10 Index
Citation Counts
75
299
17,732
* Total H IndexRankings
Ranking Based On Selection: 5
Water resources
Environment
Geology
Civil Engineering
Metrics
H-Index
i10 Index
Citation Counts
72
501
23,778
* Total H IndexRankings
Ranking Based On Selection: 6
nanomaterials for environment
solar cells
photocatalysis
Metrics
H-Index
i10 Index
Citation Counts
68
226
15,069
* Total H IndexRankings
Ranking Based On Selection: 7
energy and environmental economics
environmental and resource economics
Metrics
H-Index
i10 Index
Citation Counts
56
135
10,374
* Total H IndexRankings
Ranking Based On Selection: 8
urban runoff
Metrics
H-Index
i10 Index
Citation Counts
55
197
11,415
* Total H IndexRankings
Ranking Based On Selection: 9
Reliability
maintenance
Metrics
H-Index
i10 Index
Citation Counts
53
194
10,970
* Total H IndexRankings
Ranking Based On Selection: 10
Metrics
H-Index
i10 Index
Citation Counts
50
137
7,102
* Total H IndexRankings
Ranking Based On Selection: 11
Deep Learning
Artificial Intelligence
Document Analysis
Pattern Recognition
Applied AI
Metrics
H-Index
i10 Index
Citation Counts
49
201
13,539
* Total H IndexRankings
Ranking Based On Selection: 12
environmental geochemistry
Metrics
H-Index
i10 Index
Citation Counts
48
88
6,253
* Total H IndexRankings
Ranking Based On Selection: 13
Laser
Metrics
H-Index
i10 Index
Citation Counts
47
177
8,532
* Total H IndexRankings
Ranking Based On Selection: 14
Metrics
H-Index
i10 Index
Citation Counts
47
179
12,551
* Total H IndexRankings
Ranking Based On Selection: 15
Front-end of innovation
open innovation
innovation measurement
business models
servitization
Metrics
H-Index
i10 Index
Citation Counts
45
72
8,677
* Total H IndexRankings
Ranking Based On Selection: 16
Tribology
Friction
Wear
Lubrication
Metrics
H-Index
i10 Index
Citation Counts
45
138
6,556
* Total H IndexRankings
Ranking Based On Selection: 17
Tribology
Material science
Metrics
H-Index
i10 Index
Citation Counts
44
109
5,180
* Total H IndexRankings
Ranking Based On Selection: 18
omvårdnad
Metrics
H-Index
i10 Index
Citation Counts
44
91
6,926
* Total H IndexRankings
Ranking Based On Selection: 19
Robotics
Artificial Intelligence
Control Applications
Metrics
H-Index
i10 Index
Citation Counts
43
155
8,435
* Total H IndexRankings
Ranking Based On Selection: 20
Flotation
Mineral processing
Minerals processing
AI applications
Recycling
Metrics
H-Index
i10 Index
Citation Counts
43
111
5,244
* Total H IndexRankings
Ranking Based On Selection: 21
damage mechanics of composites
nonlinear viscoelasticity
Metrics
H-Index
i10 Index
Citation Counts
43
137
6,591
* Total H IndexRankings
Ranking Based On Selection: 22
Industrial Biotechnology
Metrics
H-Index
i10 Index
Citation Counts
42
108
5,663
* Total H IndexRankings
Ranking Based On Selection: 23
Biocomposites
Biochar
Fire
Polymers
Renewable Energy
Metrics
H-Index
i10 Index
Citation Counts
42
95
7,473
* Total H IndexRankings
Ranking Based On Selection: 24
innovation management
servitization
business model innovation
innovation ecosystems
digital servitization
Metrics
H-Index
i10 Index
Citation Counts
42
61
9,536
* Total H IndexRankings
Ranking Based On Selection: 25
Chemistry
Tribology
Metrics
H-Index
i10 Index
Citation Counts
42
98
7,106
Athanasios Vasilakos
Metrics
H-Index
i10-Index
Citation Counts
145
550
74,771
AI-LLMs
IoTs
Quantum Computing
Cybersecurity
Applied Crypto and Network Security
Kristiina Oksman
Metrics
H-Index
i10-Index
Citation Counts
85
221
33,398
composite materials
nanocomposites
biocomposites
biofibers
cellulose nanomaterials
Mhj Bollen
Metrics
H-Index
i10-Index
Citation Counts
81
372
31,482
Paul Christakopoulos
Metrics
H-Index
i10-Index
Citation Counts
75
299
17,732
Cellulose and lignin biorefinery
lignin valorization
biomass derived nanoparticles
novel enzymes for modification of plant ce
Nadhir Al Ansari
Metrics
H-Index
i10-Index
Citation Counts
72
501
23,778
Water resources
Environment
Geology
Civil Engineering
Alberto Vomiero
Metrics
H-Index
i10-Index
Citation Counts
68
226
15,069
nanomaterials for environment
solar cells
photocatalysis
Patrik Söderholm
Metrics
H-Index
i10-Index
Citation Counts
56
135
10,374
energy and environmental economics
environmental and resource economics
Jiri Marsalek
Metrics
H-Index
i10-Index
Citation Counts
55
197
11,415
Uday Kumar
Metrics
H-Index
i10-Index
Citation Counts
53
194
10,970
Ulrika Rova
Metrics
H-Index
i10-Index
Citation Counts
50
137
7,102
Marcus Liwicki
Metrics
H-Index
i10-Index
Citation Counts
49
201
13,539
Deep Learning
Artificial Intelligence
Document Analysis
Pattern Recognition
Applied AI
Johan Ingri
Metrics
H-Index
i10-Index
Citation Counts
48
88
6,253
environmental geochemistry
Alexander Kaplan
Metrics
H-Index
i10-Index
Citation Counts
47
177
8,532
Saad Ahmed Khan
Metrics
H-Index
i10-Index
Citation Counts
47
179
12,551
Johan Frishammar
Metrics
H-Index
i10-Index
Citation Counts
45
72
8,677
Front-end of innovation
open innovation
innovation measurement
business models
servitization
Roland Larsson
Metrics
H-Index
i10-Index
Citation Counts
45
138
6,556
Tribology
Friction
Wear
Lubrication
Yijun Shi
Metrics
H-Index
i10-Index
Citation Counts
44
109
5,180
Tribology
Material science
Siv Söderberg
Metrics
H-Index
i10-Index
Citation Counts
44
91
6,926
George Nikolakopoulos
Metrics
H-Index
i10-Index
Citation Counts
43
155
8,435
Robotics
Artificial Intelligence
Control Applications
Saeed Chehreh Chelgani
Metrics
H-Index
i10-Index
Citation Counts
43
111
5,244
Flotation
Mineral processing
Minerals processing
AI applications
Recycling
Janis Varna
Metrics
H-Index
i10-Index
Citation Counts
43
137
6,591
Leonidas Matsakas
Metrics
H-Index
i10-Index
Citation Counts
42
108
5,663
Oisik Das
Metrics
H-Index
i10-Index
Citation Counts
42
95
7,473
David Sjödin|David Rönnberg Sjödin
Metrics
H-Index
i10-Index
Citation Counts
42
61
9,536
innovation management
servitization
business model innovation
innovation ecosystems
digital servitization
Ichiro Minami
Metrics
H-Index
i10-Index
Citation Counts
42
98
7,106