Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,864 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection :1
Ian Sommerville
software engineering
dependability
cscw
sociotechnical systems
responsibility
Metrics
H-Index
i10 Index
Citation
62
186
56,675
* Rankings
Ranking Based On Selection :2
Ian Gent
Constraint Satisfaction
Artificial Intelligence
Constraint Programming
Metrics
H-Index
i10 Index
Citation
50
104
8,080
Simon Dobson
complex systems
network science
autonomous systems
data analytics
sensor networks
Metrics
H-Index
i10 Index
Citation
40
112
7,617
Tristan Henderson
Data Protection
Research Ethics
Data Sharing
Networks
and more
Metrics
H-Index
i10 Index
Citation
36
68
5,431
Juan Ye
pervasive computing
activity recognition
ontologies
uncertainty reasoning
temporal reasoning
Metrics
H-Index
i10 Index
Citation
28
60
3,227
Saleem Bhatti
Computer communication networks and systems
Internet architecture.
Metrics
H-Index
i10 Index
Citation
27
74
3,318
Adam Barker
Computer Systems
Cloud Computing
Distributed Systems
Metrics
H-Index
i10 Index
Citation
26
53
3,653
* Rankings
Ranking Based On Selection :10
Alexander Voss
software engineering
human rights
computers and society
participatory design
Metrics
H-Index
i10 Index
Citation
26
45
3,355
* Rankings
Ranking Based On Selection :12
Susmit Sarkar
Relaxed memory
Concurrency
Programming Languages
Verification
Metrics
H-Index
i10 Index
Citation
23
28
4,206
* Rankings
Ranking Based On Selection :13
Graham Kirby
Distributed Systems
Programming Languages
Data Linkage
Metrics
H-Index
i10 Index
Citation
23
53
1,891
* Rankings
Ranking Based On Selection :15
Colin Allison
Computer Networks
Distributed Systems
Open Virtual Worlds
Technology Enhanced Learning
Metrics
H-Index
i10 Index
Citation
21
58
1,872
* Rankings
Ranking Based On Selection :16
Juliana Küster Filipe Bowles
Formal methods
Logics
Verification
Concurrency Theory
Model Driven Development
Metrics
H-Index
i10 Index
Citation
18
39
1,172
* Rankings
Ranking Based On Selection :17
Alexander Konovalov
research software engineering
reproducible research
computational algebra
Metrics
H-Index
i10 Index
Citation
18
33
1,127
* Rankings
Ranking Based On Selection :19
Edwin Brady
Type Theory
Functional Programming
Dependent Types
Domain Specific Languages
Metrics
H-Index
i10 Index
Citation
17
25
1,617
* Rankings
Ranking Based On Selection :20
Marwan Fayed
Network architectures
streaming multimedia
transport and routing
measurement
Metrics
H-Index
i10 Index
Citation
17
22
1,431
* Rankings
Ranking Based On Selection :21
Özgür Akgün
Constraint Programming
Artificial Intelligence
Data Linkage
Programming Languages
Metrics
H-Index
i10 Index
Citation
14
18
643
* Rankings
Ranking Based On Selection :22
Ishbel Duncan
Security
Testing
Evaluation
Patterns
Virtual Worlds Education
Metrics
H-Index
i10 Index
Citation
14
18
1,120
* Rankings
Ranking Based On Selection :23
John Thomson
machine learning
runtime scheduling
performance computing
compiler optimization
Metrics
H-Index
i10 Index
Citation
13
15
1,519
* Rankings
Ranking Based On Selection :24
Christopher Brown
Refactoring
Parallelism
Energy
Functional Programming
Types
Metrics
H-Index
i10 Index
Citation
13
17
549
* Rankings
Ranking Based On Selection :25
David Harris Birtill
Image and Signal Processing
Machine Learning
Medical Technology
Computer Vision.
Metrics
H-Index
i10 Index
Citation
12
17
825
* Rankings
Ranking Based On Selection :27
Uchechukwu Awada
Cloud Computing
Big Data
Resource Management
Energy Efficiency
Edge Computing
Metrics
H-Index
i10 Index
Citation
10
10
925
* Rankings
Ranking Based On Selection :30
John Mccaffery
Virtual Worlds
Cultural Heritage
Serious Games
Education
NUI
Metrics
H-Index
i10 Index
Citation
10
10
276
András Salamon
computational complexity
constraint satisfaction
constraint programming
theoretical computer
Metrics
H-Index
i10 Index
Citation
9
9
319
Ali Khajeh Hosseini
Cloud Computing
Decision Support Tools
Infrastructure as a Service
Metrics
H-Index
i10 Index
Citation
8
8
2,149
Jakub Dostal
Human-Computer Interaction
Proxemic Interaction
Ubiquitous Computing
Multi-Modal Interfaces
Metrics
H-Index
i10 Index
Citation
8
7
478
Greg Bigwood
Social networks
opportunistic networks
mobile networks
networking
Metrics
H-Index
i10 Index
Citation
8
8
480
David Greenwood
System of Systems
Socio-Technical Systems
Social Analysis
Feasiblity Analysis
Risk Analysis
Metrics
H-Index
i10 Index
Citation
8
7
1,204
Liangfei Zhang|张 靓菲
computer science
affective computing
computer vision
machine learning
Metrics
H-Index
i10 Index
Citation
6
4
136
Georg Wölflein|Georg Wolflein
deep learning
computer vision
computational pathology
vision-language models
Metrics
H-Index
i10 Index
Citation
6
2
80
Patrick Schrempf
machine learning
artificial intelligence
natural language processing
image analysis
Metrics
H-Index
i10 Index
Citation
5
4
264
Cj Davies
Cross Reality
Virtual Reality
Virtual Environments
Indoor Positioning
Metrics
H-Index
i10 Index
Citation
5
5
110
Yaxiong Lei
Gaze Estimation
Gaze Interaction
Privacy and Security
Human Computer Interaction
Metrics
H-Index
i10 Index
Citation
3
1
23
Rankings
Ranking Based On Selection: 1
Ian Sommerville
Metrics
H-Index
i10 Index
Citation Counts
62
186
56,675
software engineering
dependability
cscw
sociotechnical systems
responsibility
Rankings
Ranking Based On Selection: 2
Ian Gent
Metrics
H-Index
i10 Index
Citation Counts
50
104
8,080
Constraint Satisfaction
Artificial Intelligence
Constraint Programming
Rankings
Ranking Based On Selection: 3
Computer vision
philosophy
machine learning
digital pathology
Rankings
Ranking Based On Selection: 4
Simon Dobson
Metrics
H-Index
i10 Index
Citation Counts
40
112
7,617
complex systems
network science
autonomous systems
data analytics
sensor networks
Rankings
Ranking Based On Selection: 5
Tristan Henderson
Metrics
H-Index
i10 Index
Citation Counts
36
68
5,431
Data Protection
Research Ethics
Data Sharing
Networks
and more
Rankings
Ranking Based On Selection: 6
Juan Ye
Metrics
H-Index
i10 Index
Citation Counts
28
60
3,227
pervasive computing
activity recognition
ontologies
uncertainty reasoning
temporal reasoning
Rankings
Ranking Based On Selection: 7
Saleem Bhatti
Metrics
H-Index
i10 Index
Citation Counts
27
74
3,318
Computer communication networks and systems
Internet architecture.
Rankings
Ranking Based On Selection: 8
Steve Linton
Metrics
H-Index
i10 Index
Citation Counts
27
54
2,265
Computational Algebra
Algorithms
Parallel Computing
Rankings
Ranking Based On Selection: 9
Adam Barker
Metrics
H-Index
i10 Index
Citation Counts
26
53
3,653
Computer Systems
Cloud Computing
Distributed Systems
Rankings
Ranking Based On Selection: 10
Alexander Voss
Metrics
H-Index
i10 Index
Citation Counts
26
45
3,355
software engineering
human rights
computers and society
participatory design
Rankings
Ranking Based On Selection: 11
Mark Jan Nederhof
Metrics
H-Index
i10 Index
Citation Counts
25
58
2,376
Rankings
Ranking Based On Selection: 12
Susmit Sarkar
Metrics
H-Index
i10 Index
Citation Counts
23
28
4,206
Relaxed memory
Concurrency
Programming Languages
Verification
Rankings
Ranking Based On Selection: 13
Graham Kirby
Metrics
H-Index
i10 Index
Citation Counts
23
53
1,891
Distributed Systems
Programming Languages
Data Linkage
Rankings
Ranking Based On Selection: 14
Alan Miller
Metrics
H-Index
i10 Index
Citation Counts
22
61
2,638
Rankings
Ranking Based On Selection: 15
Colin Allison
Metrics
H-Index
i10 Index
Citation Counts
21
58
1,872
Computer Networks
Distributed Systems
Open Virtual Worlds
Technology Enhanced Learning
Rankings
Ranking Based On Selection: 16
Juliana Küster Filipe Bowles
Metrics
H-Index
i10 Index
Citation Counts
18
39
1,172
Formal methods
Logics
Verification
Concurrency Theory
Model Driven Development
Rankings
Ranking Based On Selection: 17
Alexander Konovalov
Metrics
H-Index
i10 Index
Citation Counts
18
33
1,127
research software engineering
reproducible research
computational algebra
Rankings
Ranking Based On Selection: 18
Jonathan Stuart Ward
Metrics
H-Index
i10 Index
Citation Counts
17
20
6,733
Rankings
Ranking Based On Selection: 19
Edwin Brady
Metrics
H-Index
i10 Index
Citation Counts
17
25
1,617
Type Theory
Functional Programming
Dependent Types
Domain Specific Languages
Rankings
Ranking Based On Selection: 20
Marwan Fayed
Metrics
H-Index
i10 Index
Citation Counts
17
22
1,431
Network architectures
streaming multimedia
transport and routing
measurement
Rankings
Ranking Based On Selection: 21
Özgür Akgün
Metrics
H-Index
i10 Index
Citation Counts
14
18
643
Constraint Programming
Artificial Intelligence
Data Linkage
Programming Languages
Rankings
Ranking Based On Selection: 22
Ishbel Duncan
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,120
Security
Testing
Evaluation
Patterns
Virtual Worlds Education
Rankings
Ranking Based On Selection: 23
John Thomson
Metrics
H-Index
i10 Index
Citation Counts
13
15
1,519
machine learning
runtime scheduling
performance computing
compiler optimization
Rankings
Ranking Based On Selection: 24
Christopher Brown
Metrics
H-Index
i10 Index
Citation Counts
13
17
549
Refactoring
Parallelism
Energy
Functional Programming
Types
Rankings
Ranking Based On Selection: 25
David Harris Birtill
Metrics
H-Index
i10 Index
Citation Counts
12
17
825
Image and Signal Processing
Machine Learning
Medical Technology
Computer Vision.
Rankings
Ranking Based On Selection: 26
James Smith
Metrics
H-Index
i10 Index
Citation Counts
11
11
780
Rankings
Ranking Based On Selection: 27
Uchechukwu Awada
Metrics
H-Index
i10 Index
Citation Counts
10
10
925
Cloud Computing
Big Data
Resource Management
Energy Efficiency
Edge Computing
Rankings
Ranking Based On Selection: 28
Stephen Mcquistin
Metrics
H-Index
i10 Index
Citation Counts
10
10
215
Rankings
Ranking Based On Selection: 29
Long Thai
Metrics
H-Index
i10 Index
Citation Counts
10
10
343
Rankings
Ranking Based On Selection: 30
John Mccaffery
Metrics
H-Index
i10 Index
Citation Counts
10
10
276
Virtual Worlds
Cultural Heritage
Serious Games
Education
NUI
Rankings
Ranking Based On Selection: 31
András Salamon
Metrics
H-Index
i10 Index
Citation Counts
9
9
319
computational complexity
constraint satisfaction
constraint programming
theoretical computer
Rankings
Ranking Based On Selection: 32
Ali Khajeh Hosseini
Metrics
H-Index
i10 Index
Citation Counts
8
8
2,149
Cloud Computing
Decision Support Tools
Infrastructure as a Service
Rankings
Ranking Based On Selection: 33
Jakub Dostal
Metrics
H-Index
i10 Index
Citation Counts
8
7
478
Human-Computer Interaction
Proxemic Interaction
Ubiquitous Computing
Multi-Modal Interfaces
Rankings
Ranking Based On Selection: 34
Greg Bigwood
Metrics
H-Index
i10 Index
Citation Counts
8
8
480
Social networks
opportunistic networks
mobile networks
networking
Rankings
Ranking Based On Selection: 35
David Greenwood
Metrics
H-Index
i10 Index
Citation Counts
8
7
1,204
System of Systems
Socio-Technical Systems
Social Analysis
Feasiblity Analysis
Risk Analysis
Rankings
Ranking Based On Selection: 36
Liangfei Zhang|张 靓菲
Metrics
H-Index
i10 Index
Citation Counts
6
4
136
computer science
affective computing
computer vision
machine learning
Rankings
Ranking Based On Selection: 37
Georg Wölflein|Georg Wolflein
Metrics
H-Index
i10 Index
Citation Counts
6
2
80
deep learning
computer vision
computational pathology
vision-language models
Rankings
Ranking Based On Selection: 38
Haseeb Nazki
Metrics
H-Index
i10 Index
Citation Counts
5
5
306
Rankings
Ranking Based On Selection: 39
Patrick Schrempf
Metrics
H-Index
i10 Index
Citation Counts
5
4
264
machine learning
artificial intelligence
natural language processing
image analysis
Rankings
Ranking Based On Selection: 40
Shanen Boettcher
Metrics
H-Index
i10 Index
Citation Counts
5
3
128
Rankings
Ranking Based On Selection: 41
Cj Davies
Metrics
H-Index
i10 Index
Citation Counts
5
5
110
Cross Reality
Virtual Reality
Virtual Environments
Indoor Positioning
Rankings
Ranking Based On Selection: 42
Yaxiong Lei
Metrics
H-Index
i10 Index
Citation Counts
3
1
23
Gaze Estimation
Gaze Interaction
Privacy and Security
Human Computer Interaction
Rankings
Ranking Based On Selection: 43
Artsiom Hramyka
Metrics
H-Index
i10 Index
Citation Counts
2
2
95
Health Data Science
Longitudinal data
Machine Learning
Rankings
Ranking Based On Selection: 44
Craig Myles
Metrics
H-Index
i10 Index
Citation Counts
1
1
10
Artificial Intelligence
Machine Learning
Computer Vision