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Scientist and University Rankings 2026

Japan 2.639 Scientists Subject Rankings

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 yearsAs of Dec 31, 2025, the rankings are determined according to the Total H IndexBETA 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 (1.131.755) 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 Index Rankings

Rankings

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1,892
World Rank
23
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Computer Science
Pharmaceutical Development | Chemical Engineering | CFD | DEM Modelin

H-Index Metrics

  • H-Index
    154
  • i10 Index
    1,320
  • Citation Counts
    148,157
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* Total H Index Rankings

Rankings

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7,942
World Rank
96
Country Rank
1
University
Ranking Based On Selection:
2
Engineering & Technology / Computer Science
machine learning | statistics | computer scienc

H-Index Metrics

  • H-Index
    108
  • i10 Index
    303
  • Citation Counts
    341,832
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* Total H Index Rankings

Rankings

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9,928
World Rank
127
Country Rank
12
University
Ranking Based On Selection:
3

H-Index Metrics

  • H-Index
    102
  • i10 Index
    618
  • Citation Counts
    41,570
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* Total H Index Rankings

Rankings

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10,547
World Rank
135
Country Rank
1
University
Ranking Based On Selection:
4

H-Index Metrics

  • H-Index
    100
  • i10 Index
    372
  • Citation Counts
    35,188
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* Total H Index Rankings

Rankings

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11,853
World Rank
148
Country Rank
7
University
Ranking Based On Selection:
5

H-Index Metrics

  • H-Index
    97
  • i10 Index
    400
  • Citation Counts
    37,901
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* Total H Index Rankings

Rankings

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13,062
World Rank
164
Country Rank
15
University
Ranking Based On Selection:
6
Engineering & Technology / Computer Science
photonics | quantum dot photonics | quantum optics | silicon photonic

H-Index Metrics

  • H-Index
    95
  • i10 Index
    643
  • Citation Counts
    51,397
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* Total H Index Rankings

Rankings

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24,297
World Rank
375
Country Rank
2
University
Ranking Based On Selection:
7
Engineering & Technology / Computer Science
Cyber-Physical Systems | Internet of Things | Artificial Intelligenc

H-Index Metrics

  • H-Index
    79
  • i10 Index
    330
  • Citation Counts
    22,832
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* Total H Index Rankings

Rankings

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29,269
World Rank
443
Country Rank
1
University
Ranking Based On Selection:
8
Engineering & Technology / Computer Science
Visualization | Digital Humanities | Monte Carlo Simulatio

H-Index Metrics

  • H-Index
    75
  • i10 Index
    457
  • Citation Counts
    98,175
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* Total H Index Rankings

Rankings

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29,955
World Rank
465
Country Rank
1
University
Ranking Based On Selection:
9
Engineering & Technology / Computer Science
Network | ubiquitous computing | social computing | cyber technolog

H-Index Metrics

  • H-Index
    74
  • i10 Index
    458
  • Citation Counts
    22,923
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* Total H Index Rankings

Rankings

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33,815
World Rank
532
Country Rank
6
University
Ranking Based On Selection:
10
Engineering & Technology / Computer Science
Artificial Intelligence | Natural Language Processing | Text Mining | Machine Translatio

H-Index Metrics

  • H-Index
    72
  • i10 Index
    282
  • Citation Counts
    24,053
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* Total H Index Rankings

Rankings

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36,787
World Rank
596
Country Rank
35
University
Ranking Based On Selection:
11

H-Index Metrics

  • H-Index
    70
  • i10 Index
    446
  • Citation Counts
    25,856
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* Total H Index Rankings

Rankings

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40,340
World Rank
670
Country Rank
48
University
Ranking Based On Selection:
12
Engineering & Technology / Computer Science
Robotics | MEMS | Nanomanipulation | Biorobotics | Lab-on-a-chi

H-Index Metrics

  • H-Index
    68
  • i10 Index
    400
  • Citation Counts
    20,152
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* Total H Index Rankings

Rankings

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40,407
World Rank
676
Country Rank
6
University
Ranking Based On Selection:
13
Engineering & Technology / Computer Science
photonic crystal | silicon photonics | slow light | LiDAR | biosensin

H-Index Metrics

  • H-Index
    68
  • i10 Index
    215
  • Citation Counts
    17,962
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* Total H Index Rankings

Rankings

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43,030
World Rank
712
Country Rank
39
University
Ranking Based On Selection:
14
Engineering & Technology / Computer Science
Medical Imaging | Image Processing | Computer Vision | Computer Graphic

H-Index Metrics

  • H-Index
    66
  • i10 Index
    432
  • Citation Counts
    32,207
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* Total H Index Rankings

Rankings

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48,068
World Rank
808
Country Rank
26
University
Ranking Based On Selection:
15
Engineering & Technology / Computer Science
Deep learning | Machine learning | Computer-aided diagnosis | Artificial intelligence | Medical imagin

H-Index Metrics

  • H-Index
    64
  • i10 Index
    208
  • Citation Counts
    17,888
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* Total H Index Rankings

Rankings

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49,532
World Rank
835
Country Rank
1
University
Ranking Based On Selection:
16
Engineering & Technology / Computer Science
Robotics | Biorobot | Underwater Robot | Rehablitation Robo

H-Index Metrics

  • H-Index
    63
  • i10 Index
    429
  • Citation Counts
    17,330
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* Total H Index Rankings

Rankings

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50,864
World Rank
875
Country Rank
22
University
Ranking Based On Selection:
17
Engineering & Technology / Computer Science
Superconductivity | magnetism | high pressure | AI MI | machine learnin

H-Index Metrics

  • H-Index
    63
  • i10 Index
    273
  • Citation Counts
    18,533
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* Total H Index Rankings

Rankings

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52,701
World Rank
913
Country Rank
2
University
Ranking Based On Selection:
18
Engineering & Technology / Computer Science
Robotics | Intelligent Space | Contor

H-Index Metrics

  • H-Index
    62
  • i10 Index
    397
  • Citation Counts
    21,303
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* Total H Index Rankings

Rankings

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53,220
World Rank
933
Country Rank
15
University
Ranking Based On Selection:
19
Engineering & Technology / Computer Science
optics | biomedical imaging | optical coherence tomograph

H-Index Metrics

  • H-Index
    62
  • i10 Index
    173
  • Citation Counts
    13,384
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* Total H Index Rankings

Rankings

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53,272
World Rank
936
Country Rank
3
University
Ranking Based On Selection:
20
Engineering & Technology / Computer Science
Speech Synthesis | Speech Recognition | Spoken Language Processing | Machine Learnin

H-Index Metrics

  • H-Index
    62
  • i10 Index
    200
  • Citation Counts
    21,612
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* Total H Index Rankings

Rankings

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53,392
World Rank
944
Country Rank
1
University
Ranking Based On Selection:
21
Engineering & Technology / Computer Science
Applied ontology | Ontology engineering | artificial intelligence in education | intelligent tutoring systems | CSC

H-Index Metrics

  • H-Index
    62
  • i10 Index
    275
  • Citation Counts
    15,389
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* Total H Index Rankings

Rankings

flag
53,873
World Rank
952
Country Rank
3
University
Ranking Based On Selection:
22
Engineering & Technology / Computer Science
Computer Science | Software Engineerin

H-Index Metrics

  • H-Index
    61
  • i10 Index
    253
  • Citation Counts
    15,117
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* Total H Index Rankings

Rankings

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55,151
World Rank
975
Country Rank
6
University
Ranking Based On Selection:
23
Engineering & Technology / Computer Science
Bioinformatics | Biodatabase | Metabolome | Systems Biology | Omic

H-Index Metrics

  • H-Index
    61
  • i10 Index
    176
  • Citation Counts
    21,840
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* Total H Index Rankings

Rankings

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55,702
World Rank
994
Country Rank
5
University
Ranking Based On Selection:
24
Engineering & Technology / Computer Science
fuzzy control | unmanned aerial vehicles | robotics | brain machine interface | nonlinear contro

H-Index Metrics

  • H-Index
    61
  • i10 Index
    172
  • Citation Counts
    33,612
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* Total H Index Rankings

Rankings

flag
55,735
World Rank
995
Country Rank
55
University
Ranking Based On Selection:
25
Engineering & Technology / Computer Science
Artificial Intelligence | Robotic

H-Index Metrics

  • H-Index
    61
  • i10 Index
    347
  • Citation Counts
    19,709
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