University, Subject, Country, Region, World
NTT Corporation 145 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 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
quantum optics
quantum communication
optical computing
Metrics
H-Index
i10 Index
Citation Counts
53
106
11,822
* Total H IndexRankings
Ranking Based On Selection: 2
Signal processing
Machine learning
Computer aided design
Metrics
H-Index
i10 Index
Citation Counts
53
156
11,804
* Total H IndexRankings
Ranking Based On Selection: 3
Cloud Computing
Heterogeneous Computing
Adaptive Software
Network Software
Metrics
H-Index
i10 Index
Citation Counts
50
62
3,104
* Total H IndexRankings
Ranking Based On Selection: 4
Physics and Application of Silicon Nanodevices and Nanostructures
Metrics
H-Index
i10 Index
Citation Counts
48
131
7,164
* Total H IndexRankings
Ranking Based On Selection: 5
Speech and Audio Processing
Statistical Signal Processing
Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
47
128
8,761
* Total H IndexRankings
Ranking Based On Selection: 6
nanomechanics
micromechanics
compound semiconductors
Metrics
H-Index
i10 Index
Citation Counts
46
195
10,504
* Total H IndexRankings
Ranking Based On Selection: 7
Optical communications
Optical Communication
Optical Fiber Communication
WDM
Telecom
Metrics
H-Index
i10 Index
Citation Counts
45
116
6,765
* Total H IndexRankings
Ranking Based On Selection: 8
Robotics
Biomedical engineering
Metrics
H-Index
i10 Index
Citation Counts
40
168
8,016
* Total H IndexRankings
Ranking Based On Selection: 9
Solid State Physics
Metrics
H-Index
i10 Index
Citation Counts
40
130
7,247
* Total H IndexRankings
Ranking Based On Selection: 10
Mixed-signal/Analog/RF/mm-wave IC
Metrics
H-Index
i10 Index
Citation Counts
38
76
4,664
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* Total H IndexRankings
Ranking Based On Selection: 11
Machine Translation
Metrics
H-Index
i10 Index
Citation Counts
38
107
5,212
* Total H IndexRankings
Ranking Based On Selection: 12
optical communication
optical devices
Metrics
H-Index
i10 Index
Citation Counts
38
85
4,877
* Total H IndexRankings
Ranking Based On Selection: 13
Data Mining
Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
36
102
5,170
* Total H IndexRankings
Ranking Based On Selection: 14
Numerical Simulation
Transmission Technology
Devices
Metrics
H-Index
i10 Index
Citation Counts
35
100
4,413
* Total H IndexRankings
Ranking Based On Selection: 15
Quantum Physics
Mathematical Physics
Metrics
H-Index
i10 Index
Citation Counts
35
56
5,580
* Total H IndexRankings
Ranking Based On Selection: 16
Human motor control mechanisms
Visuomotor control mechanisms
Motor perception
Metrics
H-Index
i10 Index
Citation Counts
34
76
8,009
* Total H IndexRankings
Ranking Based On Selection: 17
Optics
Quantum Mechanics
Metrics
H-Index
i10 Index
Citation Counts
34
113
5,424
* Total H IndexRankings
Ranking Based On Selection: 18
Superconducting quantum circuits
Metrics
H-Index
i10 Index
Citation Counts
33
57
4,735
* Total H IndexRankings
Ranking Based On Selection: 19
Metrics
H-Index
i10 Index
Citation Counts
31
54
4,375
* Total H IndexRankings
Ranking Based On Selection: 20
Metrics
H-Index
i10 Index
Citation Counts
31
73
3,005
* Total H IndexRankings
Ranking Based On Selection: 21
ナノサイエンス
Metrics
H-Index
i10 Index
Citation Counts
31
65
2,370
* Total H IndexRankings
Ranking Based On Selection: 22
Metrics
H-Index
i10 Index
Citation Counts
30
66
3,785
* Total H IndexRankings
Ranking Based On Selection: 23
Optical communications
Metrics
H-Index
i10 Index
Citation Counts
28
68
2,748
* Total H IndexRankings
Ranking Based On Selection: 24
Cryptography
Metrics
H-Index
i10 Index
Citation Counts
28
47
4,023
* Total H IndexRankings
Ranking Based On Selection: 25
Machine Learning
Signal Processing
Metrics
H-Index
i10 Index
Citation Counts
28
68
4,248
quantum optics
quantum communication
optical computing
Signal processing
Machine learning
Computer aided design
Cloud Computing
Heterogeneous Computing
Adaptive Software
Network Software
Physics and Application of Silicon Nanodevices and Nanostructures
Hirokazu Kameoka
NTT Corporation
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
47
128
8,761
Speech and Audio Processing
Statistical Signal Processing
Machine Learning
Hiroshi Yamaguchi
NTT Corporation
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
46
195
10,504
Takayuki Kobayashi|小林 孝行
NTT Corporation
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
45
116
6,765
Optical communications
Optical Communication
Optical Fiber Communication
WDM
Telecom
Robotics
Biomedical engineering
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Data Mining
Machine Learning
Human motor control mechanisms
Visuomotor control mechanisms
Motor perception
Toshikazu Hashimoto
NTT Corporation
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
34
113
5,424
Katsuhiko Nishiguchi
NTT Corporation
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
30
66
3,785
Masanori Nakamura
NTT Corporation
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
28
68
2,748
Machine Learning
Signal Processing