Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.797 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Software Engineering
Cloud Computing
Text Analytics
File systems
Storag
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
146,315
63,726
0.436
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
physics of informatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
115,721
30,908
0.267
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Linear Algebra and Optimization
Data Mining
Probability and Statistics
Outlier Analysis
A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,287
37,884
0.411
* Total Citation Counts Rankings
Ranking Based On Selection: 4
materials physics
nanotechnolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,326
10,393
0.150
* Total Citation Counts Rankings
Ranking Based On Selection: 5
polyme
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,006
15,395
0.280
* Total Citation Counts Rankings
Ranking Based On Selection: 6
quantum information
quantum computing
superconducting quantum circuits
quantum control
quantum simulatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,449
33,689
0.655
* Total Citation Counts Rankings
Ranking Based On Selection: 7
natural language processing
machine learning
speech processing
digital signal processin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,959
24,295
0.477
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Quantum Computing Applications and Algorithms
Artificial intelligence
Particle physics phenomenolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,084
39,740
0.793
* Total Citation Counts Rankings
Ranking Based On Selection: 9
applications of logic to computer science
database theory
finite model theory
rank and scor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,953
5,601
0.134
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
computer vision
driver assistance
public safety
surveillance
securit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,999
9,227
0.243
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Artificial Intelligence
Multimedia
Computer Vision
Machine Learning
Information Retrieva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,939
5,535
0.163
* Total Citation Counts Rankings
Ranking Based On Selection: 12
science
mathematics
creativity
innovation
A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,407
15,391
0.475
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Brain-inspired Computin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,745
13,545
0.427
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Neuroscienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,293
5,065
0.162
* Total Citation Counts Rankings
Ranking Based On Selection: 15
autonomic computing
embodied artificial intelligence
energy management
nonlinear dynamics
machine learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,241
4,973
0.159
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Drug discovery
text mining
modeling
simulation
competitive intelligenc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,197
7,099
0.228
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Automatic Speech Recognition
Spoken Term Detection
Deep Learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,462
13,866
0.455
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Physics
Materials Science
Surface Science
Analytical Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,038
2,938
0.098
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Materials Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,697
5,775
0.194
* Total Citation Counts Rankings
Ranking Based On Selection: 20
optics
fullerenes
nanotubes
lasers
cryptograph
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,188
3,293
0.113
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,852
6,691
0.232
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Quantum computing
Superconducting quantum circuits
quantum algorithm
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,357
18,597
0.656
* Total Citation Counts Rankings
Ranking Based On Selection: 23
physics
nanoscience
force microscopy
nanoscale magnetic resonanc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,224
3,725
0.132
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Energy Efficiency and Sustainability
Artificial Intelligence
Computer Packaging and Cooling
Carbon Capture
Biochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,188
5,346
0.197
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Nano-fabrication
material science
device physic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,178
4,366
0.161
* Total Citation Counts Rankings
Rankings
1,627
715
1
Ranking Based On Selection: 1
Soumitra Sarkar
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
146,315
63,726
0.436
Software Engineering
Cloud Computing
Text Analytics
File systems
Storag
* Total Citation Counts Rankings
Rankings
2,577
1,205
2
Ranking Based On Selection: 2
Charles H Bennett
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
115,721
30,908
0.267
* Total Citation Counts Rankings
Rankings
3,948
1,855
3
Ranking Based On Selection: 3
Charu Aggarwal
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,287
37,884
0.411
Linear Algebra and Optimization
Data Mining
Probability and Statistics
Outlier Analysis
A
* Total Citation Counts Rankings
Rankings
6,407
3,011
4
Ranking Based On Selection: 4
Jerry Tersoff
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,326
10,393
0.150
* Total Citation Counts Rankings
Rankings
9,294
4,393
5
Ranking Based On Selection: 5
James L Hedrick
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,006
15,395
0.280
* Total Citation Counts Rankings
Rankings
10,301
4,871
6
Ranking Based On Selection: 6
Jay M Gambetta
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,449
33,689
0.655
quantum information
quantum computing
superconducting quantum circuits
quantum control
quantum simulatio
* Total Citation Counts Rankings
Rankings
10,442
4,931
7
Ranking Based On Selection: 7
Salim Roukos, Salim Roucos
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,959
24,295
0.477
natural language processing
machine learning
speech processing
digital signal processin
* Total Citation Counts Rankings
Rankings
10,745
5,077
8
Ranking Based On Selection: 8
Declan Millar
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,084
39,740
0.793
Quantum Computing Applications and Algorithms
Artificial intelligence
Particle physics phenomenolog
* Total Citation Counts Rankings
Rankings
14,296
6,697
9
Ranking Based On Selection: 9
Ronald Fagin
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,953
5,601
0.134
applications of logic to computer science
database theory
finite model theory
rank and scor
* Total Citation Counts Rankings
Rankings
16,736
7,821
10
Ranking Based On Selection: 10
Sharath Pankanti
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,999
9,227
0.243
computer vision
driver assistance
public safety
surveillance
securit
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
19,919
9,177
11
Ranking Based On Selection: 11
John R Smith
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,939
5,535
0.163
Artificial Intelligence
Multimedia
Computer Vision
Machine Learning
Information Retrieva
* Total Citation Counts Rankings
Rankings
21,422
9,830
12
Ranking Based On Selection: 12
Clifford A Pickover
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,407
15,391
0.475
science
mathematics
creativity
innovation
A
* Total Citation Counts Rankings
Rankings
22,139
10,155
13
Ranking Based On Selection: 13
Dharmendra Modha
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,745
13,545
0.427
* Total Citation Counts Rankings
Rankings
22,617
10,362
14
Ranking Based On Selection: 14
Roger Traub
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,293
5,065
0.162
* Total Citation Counts Rankings
Rankings
22,673
10,387
15
Ranking Based On Selection: 15
Jeff Kephart
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,241
4,973
0.159
autonomic computing
embodied artificial intelligence
energy management
nonlinear dynamics
machine learnin
* Total Citation Counts Rankings
Rankings
22,712
10,403
16
Ranking Based On Selection: 16
Wendy D Cornell
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,197
7,099
0.228
Drug discovery
text mining
modeling
simulation
competitive intelligenc
* Total Citation Counts Rankings
Rankings
23,605
10,821
17
Ranking Based On Selection: 17
Brian Kingsbury
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,462
13,866
0.455
Automatic Speech Recognition
Spoken Term Detection
Deep Learnin
* Total Citation Counts Rankings
Rankings
24,121
11,044
18
Ranking Based On Selection: 18
Rudolf Tromp
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,038
2,938
0.098
Physics
Materials Science
Surface Science
Analytical Scienc
* Total Citation Counts Rankings
Rankings
24,530
11,215
19
Ranking Based On Selection: 19
Alfred Grill
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,697
5,775
0.194
* Total Citation Counts Rankings
Rankings
25,121
11,482
20
Ranking Based On Selection: 20
Donald S Bethune
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,188
3,293
0.113
optics
fullerenes
nanotubes
lasers
cryptograph
* Total Citation Counts Rankings
Rankings
25,560
11,676
21
Ranking Based On Selection: 21
Myron Flickner
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,852
6,691
0.232
* Total Citation Counts Rankings
Rankings
26,240
11,965
22
Ranking Based On Selection: 22
Jerry M Chow
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,357
18,597
0.656
Quantum computing
Superconducting quantum circuits
quantum algorithm
* Total Citation Counts Rankings
Rankings
26,438
12,044
23
Ranking Based On Selection: 23
Daniel Rugar
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,224
3,725
0.132
physics
nanoscience
force microscopy
nanoscale magnetic resonanc
* Total Citation Counts Rankings
Rankings
28,002
12,709
24
Ranking Based On Selection: 24
Bruno Michel
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,188
5,346
0.197
Energy Efficiency and Sustainability
Artificial Intelligence
Computer Packaging and Cooling
Carbon Capture
Biochemistr
* Total Citation Counts Rankings
Rankings
28,017
12,717
25
Ranking Based On Selection: 25
Charles T Rettner
IBM Corporation
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,178
4,366
0.161
Nano-fabrication
material science
device physic