World Scientist and University Rankings 2025
Japan Engineering & Technology / Computer Science 2.647 Scientists Subject Rankings - 2025
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 03, 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 (870.057) 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
Pharmaceutical Development
Chemical Engineering
CFD
DEM Modeling
Metrics
H-Index
i10 Index
Citation Counts
146
1,310
133,561
* Total H IndexRankings
Ranking Based On Selection: 2
machine learning
statistics
computer science
Metrics
H-Index
i10 Index
Citation Counts
104
296
326,069
* Total H IndexRankings
Ranking Based On Selection: 3
robotics
Metrics
H-Index
i10 Index
Citation Counts
97
585
38,959
* Total H IndexRankings
Ranking Based On Selection: 4
photonics
quantum dot photonics
quantum optics
silicon photonics
Metrics
H-Index
i10 Index
Citation Counts
94
627
48,523
* Total H IndexRankings
Ranking Based On Selection: 5
Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
93
339
30,628
* Total H IndexRankings
Ranking Based On Selection: 6
Wireless networking
Metrics
H-Index
i10 Index
Citation Counts
92
362
33,273
* Total H IndexRankings
Ranking Based On Selection: 7
Visualization
Digital Humanities
Monte Carlo Simulation
Metrics
H-Index
i10 Index
Citation Counts
71
438
90,922
* Total H IndexRankings
Ranking Based On Selection: 8
Cyber-Physical Systems
Internet of Things
Artificial Intelligence
Metrics
H-Index
i10 Index
Citation Counts
70
281
19,238
* Total H IndexRankings
Ranking Based On Selection: 9
Artificial Intelligence
Natural Language Processing
Text Mining
Machine Translation
Metrics
H-Index
i10 Index
Citation Counts
70
279
23,685
* Total H IndexRankings
Ranking Based On Selection: 10
Wireless
Metrics
H-Index
i10 Index
Citation Counts
68
427
24,382
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* Total H IndexRankings
Ranking Based On Selection: 11
Medical Imaging
Image Processing
Computer Vision
Computer Graphics
Metrics
H-Index
i10 Index
Citation Counts
66
405
26,936
* Total H IndexRankings
Ranking Based On Selection: 12
Robotics
MEMS
Nanomanipulation
Biorobotics
Lab-on-a-chip
Metrics
H-Index
i10 Index
Citation Counts
66
393
19,287
* Total H IndexRankings
Ranking Based On Selection: 13
photonic crystal
silicon photonics
slow light
LiDAR
biosensing
Metrics
H-Index
i10 Index
Citation Counts
66
212
17,372
* Total H IndexRankings
Ranking Based On Selection: 14
Network
ubiquitous computing
social computing
cyber technology
Metrics
H-Index
i10 Index
Citation Counts
65
328
16,987
* Total H IndexRankings
Ranking Based On Selection: 15
Deep learning
Machine learning
Computer-aided diagnosis
Artificial intelligence
Medical imaging
Metrics
H-Index
i10 Index
Citation Counts
64
204
16,975
* Total H IndexRankings
Ranking Based On Selection: 16
Superconductivity
magnetism
high pressure
AI MI
machine learning
Metrics
H-Index
i10 Index
Citation Counts
63
257
17,754
* Total H IndexRankings
Ranking Based On Selection: 17
Speech Synthesis
Speech Recognition
Spoken Language Processing
Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
62
203
21,529
* Total H IndexRankings
Ranking Based On Selection: 18
Applied ontology
Ontology engineering
artificial intelligence in education
intelligent tutoring systems
CSCL
Metrics
H-Index
i10 Index
Citation Counts
61
274
14,903
* Total H IndexRankings
Ranking Based On Selection: 19
Robotics
Biorobot
Underwater Robot
Rehablitation Robot
Metrics
H-Index
i10 Index
Citation Counts
60
400
15,709
* Total H IndexRankings
Ranking Based On Selection: 20
Bioinformatics
Biodatabase
Metabolome
Systems Biology
Omics
Metrics
H-Index
i10 Index
Citation Counts
60
168
20,506
* Total H IndexRankings
Ranking Based On Selection: 21
fuzzy control
unmanned aerial vehicles
robotics
brain machine interface
nonlinear control
Metrics
H-Index
i10 Index
Citation Counts
60
162
32,300
* Total H IndexRankings
Ranking Based On Selection: 22
Artificial Intelligence
Robotics
Metrics
H-Index
i10 Index
Citation Counts
60
336
18,626
* Total H IndexRankings
Ranking Based On Selection: 23
optics
biomedical imaging
optical coherence tomography
Metrics
H-Index
i10 Index
Citation Counts
60
159
12,681
* Total H IndexRankings
Ranking Based On Selection: 24
Artificial Intelligence
Multi-Agent Systems
Services Computing
Social Informatics
Design
Metrics
H-Index
i10 Index
Citation Counts
60
233
14,227
* Total H IndexRankings
Ranking Based On Selection: 25
computational social science
network science
complex systems
temporal networks
Metrics
H-Index
i10 Index
Citation Counts
59
135
21,777
Pharmaceutical Development
Chemical Engineering
CFD
DEM Modeling
machine learning
statistics
computer science
Hiroshi Ishiguro
Osaka University
Suita, Japan
Metrics
H-Index
i10-Index
Citation Counts
97
585
38,959
Yasuhiko Arakawa
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
94
627
48,523
photonics
quantum dot photonics
quantum optics
silicon photonics
Hamido Fujita
Metrics
H-Index
i10-Index
Citation Counts
93
339
30,628
Nei Katoieee
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
92
362
33,273
Satoshi Tanaka
Ritsumeikan University
Kyoto, Japan
Metrics
H-Index
i10-Index
Citation Counts
71
438
90,922
Visualization
Digital Humanities
Monte Carlo Simulation
Mianxiong Dong
Muroran Institute of Technology
Muroran, Japan
Metrics
H-Index
i10-Index
Citation Counts
70
281
19,238
Cyber-Physical Systems
Internet of Things
Artificial Intelligence
Junichi Tsujii
Metrics
H-Index
i10-Index
Citation Counts
70
279
23,685
Artificial Intelligence
Natural Language Processing
Text Mining
Machine Translation
Fumiyuki Adachi
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
68
427
24,382
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Kensaku Mori
Nagoya University
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
66
405
26,936
Medical Imaging
Image Processing
Computer Vision
Computer Graphics
Fumihito Arai
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
66
393
19,287
Robotics
MEMS
Nanomanipulation
Biorobotics
Lab-on-a-chip
Toshihiko Baba
Yokohama National University
Yokohama, Japan
Metrics
H-Index
i10-Index
Citation Counts
66
212
17,372
photonic crystal
silicon photonics
slow light
LiDAR
biosensing
Network
ubiquitous computing
social computing
cyber technology
Kenji Suzuki
Metrics
H-Index
i10-Index
Citation Counts
64
204
16,975
Deep learning
Machine learning
Computer-aided diagnosis
Artificial intelligence
Medical imaging
Yoshihiko Takano
Metrics
H-Index
i10-Index
Citation Counts
63
257
17,754
Superconductivity
magnetism
high pressure
AI MI
machine learning
Keiichi Tokuda
Nagoya Institute of Technology
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
62
203
21,529
Speech Synthesis
Speech Recognition
Spoken Language Processing
Machine Learning
Riichiro Mizoguchi
Metrics
H-Index
i10-Index
Citation Counts
61
274
14,903
Applied ontology
Ontology engineering
artificial intelligence in education
intelligent tutoring systems
CSCL
Shuxiang Guo
Kagawa University
Takamatsu, Japan
Metrics
H-Index
i10-Index
Citation Counts
60
400
15,709
Robotics
Biorobot
Underwater Robot
Rehablitation Robot
Shigehiko Kanaya
Metrics
H-Index
i10-Index
Citation Counts
60
168
20,506
Bioinformatics
Biodatabase
Metabolome
Systems Biology
Omics
Kazuo Tanaka
Metrics
H-Index
i10-Index
Citation Counts
60
162
32,300
fuzzy control
unmanned aerial vehicles
robotics
brain machine interface
nonlinear control
Artificial Intelligence
Robotics
Yoshiaki Yasuno
University of Tsukuba
Tsukuba, Japan
Metrics
H-Index
i10-Index
Citation Counts
60
159
12,681
optics
biomedical imaging
optical coherence tomography
Artificial Intelligence
Multi-Agent Systems
Services Computing
Social Informatics
Design
Petter Holme
Metrics
H-Index
i10-Index
Citation Counts
59
135
21,777
computational social science
network science
complex systems
temporal networks