World Scientist and University Rankings 2025
Japan Engineering & Technology / Electrical & Information Engineering 202 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 02, 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 (870.053) 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
Telecommunication Network
Metrics
H-Index
i10 Index
Citation Counts
77
555
32,788
* Total H IndexRankings
Ranking Based On Selection: 2
solar cell
Metrics
H-Index
i10 Index
Citation Counts
70
220
19,864
* Total H IndexRankings
Ranking Based On Selection: 3
Crystal growth
Nitride Semiconductors
Optoelectronics
Metrics
H-Index
i10 Index
Citation Counts
64
215
20,501
* Total H IndexRankings
Ranking Based On Selection: 4
Solar cells
Metrics
H-Index
i10 Index
Citation Counts
63
296
17,753
* Total H IndexRankings
Ranking Based On Selection: 5
Diamond
Wide bandgap semiconductors
Optoelectronics
Photodetectors
MEMS
Metrics
H-Index
i10 Index
Citation Counts
63
176
16,787
* Total H IndexRankings
Ranking Based On Selection: 6
Information Networking and Applications
Metrics
H-Index
i10 Index
Citation Counts
60
406
15,483
* Total H IndexRankings
Ranking Based On Selection: 7
Ecology
Limnology
Climate change
Environmental DNA
Metrics
H-Index
i10 Index
Citation Counts
48
134
9,111
* Total H IndexRankings
Ranking Based On Selection: 8
chemistry
Metrics
H-Index
i10 Index
Citation Counts
48
205
8,145
* Total H IndexRankings
Ranking Based On Selection: 9
information retrieval
natural language processing
human computer interaction
Metrics
H-Index
i10 Index
Citation Counts
45
164
7,322
* Total H IndexRankings
Ranking Based On Selection: 10
Computer Vision
Deep Learning
Image Synthesis and Editing
Metrics
H-Index
i10 Index
Citation Counts
42
100
6,753
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* Total H IndexRankings
Ranking Based On Selection: 11
Network
Communication
Metrics
H-Index
i10 Index
Citation Counts
40
139
12,076
* Total H IndexRankings
Ranking Based On Selection: 12
Information photonics
Computational imaging
Computational photography
Metrics
H-Index
i10 Index
Citation Counts
36
70
5,175
* Total H IndexRankings
Ranking Based On Selection: 13
information processing
media technology
art & technology
robotics
Metrics
H-Index
i10 Index
Citation Counts
34
88
5,345
* Total H IndexRankings
Ranking Based On Selection: 14
atomic
molecular
and optical physics
Metrics
H-Index
i10 Index
Citation Counts
34
65
3,468
* Total H IndexRankings
Ranking Based On Selection: 15
Photochemistry
Optoelectronics
Organic Photonics
Metrics
H-Index
i10 Index
Citation Counts
32
57
7,286
* Total H IndexRankings
Ranking Based On Selection: 16
Bioinformatics
Metrics
H-Index
i10 Index
Citation Counts
31
66
16,031
* Total H IndexRankings
Ranking Based On Selection: 17
Power Amplifiers
Power Electronics
Wireless Communications
Nonlinear Circuit Theory
Digital
Metrics
H-Index
i10 Index
Citation Counts
31
105
3,912
* Total H IndexRankings
Ranking Based On Selection: 18
Nonlinear time series analysis
time series prediction
forced systems
chromosome
point process
Metrics
H-Index
i10 Index
Citation Counts
30
73
3,121
* Total H IndexRankings
Ranking Based On Selection: 19
Information Visualization
Scientific Visualization
Visual Analytics
Metrics
H-Index
i10 Index
Citation Counts
30
74
3,496
* Total H IndexRankings
Ranking Based On Selection: 20
Robotics
Computer Vision
Metrics
H-Index
i10 Index
Citation Counts
29
79
3,160
* Total H IndexRankings
Ranking Based On Selection: 21
Theoretical Computer Science
Programming Languages
Type Theory
Metrics
H-Index
i10 Index
Citation Counts
29
55
4,112
* Total H IndexRankings
Ranking Based On Selection: 22
statistical computing
datamining
mathematical modeling
artificial intelligence
Metrics
H-Index
i10 Index
Citation Counts
28
47
6,883
* Total H IndexRankings
Ranking Based On Selection: 23
Image & Video Analysis
Natural Language Processing
Information Retrieval
Multimedia Contents Analysis & Authoring
Metrics
H-Index
i10 Index
Citation Counts
28
109
4,323
* Total H IndexRankings
Ranking Based On Selection: 24
Metrics
H-Index
i10 Index
Citation Counts
27
51
3,505
* Total H IndexRankings
Ranking Based On Selection: 25
Information Security and Cloud computing
Metrics
H-Index
i10 Index
Citation Counts
27
54
2,877
Yoshiaki Tanaka
Waseda University
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
77
555
32,788
Telecommunication Network
Qing Shen
Metrics
H-Index
i10-Index
Citation Counts
70
220
19,864
Kazumasa Hiramatsu
Mie University
Tsu, Japan
Metrics
H-Index
i10-Index
Citation Counts
64
215
20,501
Crystal growth
Nitride Semiconductors
Optoelectronics
Shuzi Hayase
Metrics
H-Index
i10-Index
Citation Counts
63
296
17,753
Meiyong Liao
Metrics
H-Index
i10-Index
Citation Counts
63
176
16,787
Diamond
Wide bandgap semiconductors
Optoelectronics
Photodetectors
MEMS
Leonard Barolli
Fukuoka Institute of Technology
Fukuoka, Japan
Metrics
H-Index
i10-Index
Citation Counts
60
406
15,483
Information Networking and Applications
Ecology
Limnology
Climate change
Environmental DNA
Takayuki Ishida
Metrics
H-Index
i10-Index
Citation Counts
48
205
8,145
information retrieval
natural language processing
human computer interaction
Keiji Yanai
Metrics
H-Index
i10-Index
Citation Counts
42
100
6,753
Computer Vision
Deep Learning
Image Synthesis and Editing
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Ryoichi Horisaki|堀﨑 遼一
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
36
70
5,175
Information photonics
Computational imaging
Computational photography
information processing
media technology
art & technology
robotics
Shinichi Watanabe
Metrics
H-Index
i10-Index
Citation Counts
34
65
3,468
atomic
molecular
and optical physics
Shuzo Hirata
Metrics
H-Index
i10-Index
Citation Counts
32
57
7,286
Photochemistry
Optoelectronics
Organic Photonics
Power Amplifiers
Power Electronics
Wireless Communications
Nonlinear Circuit Theory
Digital
Yoshito Hirata
University of Tsukuba
Tsukuba, Japan
Metrics
H-Index
i10-Index
Citation Counts
30
73
3,121
Nonlinear time series analysis
time series prediction
forced systems
chromosome
point process
Takayuki Itoh
Ochanomizu University
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
30
74
3,496
Information Visualization
Scientific Visualization
Visual Analytics
Atsushi Igarashi
Kyoto University
Kyoto, Japan
Metrics
H-Index
i10-Index
Citation Counts
29
55
4,112
Theoretical Computer Science
Programming Languages
Type Theory
Kazuo Ishii
Suwa University of Science
Nagano, Japan
Metrics
H-Index
i10-Index
Citation Counts
28
47
6,883
statistical computing
datamining
mathematical modeling
artificial intelligence
Image & Video Analysis
Natural Language Processing
Information Retrieval
Multimedia Contents Analysis & Authoring
Muhammad Akmal Kamarudin
Metrics
H-Index
i10-Index
Citation Counts
27
51
3,505
Information Security and Cloud computing