Citation Rankings
Highly Cited Researchers

North AmericaNatural Sciences / Mathematical Sciences Highly Cited Researchers 8.774 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 26
United States
Alan M Zaslavsky
Official statistics
health policy
hierarchical models
health care quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106,046
46,234
0.436
* Total Citation Counts Rankings
Ranking Based On Selection: 27
United States
Charles E Leiserson
algorithms
computer science and engineering
graph drawing
parallel computing
performance engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,467
19,291
0.183
* Total Citation Counts Rankings
Ranking Based On Selection: 28
United States
Arthur P Dempster
Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
101,516
18,492
0.182
* Total Citation Counts Rankings
Ranking Based On Selection: 29
United States
Terence Tao
Analysis
Combinatorics
Random Matrix Theory
PDE
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
100,489
28,679
0.285
* Total Citation Counts Rankings
Ranking Based On Selection: 30
Canada
HM Srivastava
Special Functions
Number Theory
Integral Transforms
Fractional Calculus
Applied Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,919
42,155
0.435
* Total Citation Counts Rankings
Ranking Based On Selection: 31
United States
Elliott Lieb
mathematical physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,799
23,391
0.244
* Total Citation Counts Rankings
Ranking Based On Selection: 32
Canada
Stephen Walter
Statistics
Biostatistics
clinical epidemiology
public health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,721
22,721
0.237
* Total Citation Counts Rankings
Ranking Based On Selection: 33
United States
Jianqing Fan
Statistics
machine learning
finance
economics
operations research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,927
35,985
0.391
* Total Citation Counts Rankings
Ranking Based On Selection: 34
United States
Paul Rosenbaum
Observational studies
experimental design.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,753
30,942
0.337
* Total Citation Counts Rankings
Ranking Based On Selection: 35
United States
Susan P Holmes
Statistics and Biology
Immunology
Microbial Ecology
Reproducible research
MCMC
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,286
73,300
0.803
* Total Citation Counts Rankings
Ranking Based On Selection: 36
United States
Jun S Liu
Statistical Machine Learning
Monte Carlo
Bayesian statistics
Computational Biology
Signal processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,524
33,678
0.376
* Total Citation Counts Rankings
Ranking Based On Selection: 37
Canada
N Balakrishnan
Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,568
24,451
0.276
* Total Citation Counts Rankings
Ranking Based On Selection: 38
United States
Lionel London
Numerical Relativity
Gravitational Wave Modeling
Black Hole Perturbation Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,712
64,686
0.737
* Total Citation Counts Rankings
Ranking Based On Selection: 39
United States
Stephen Grossberg
computational neuroscience
theoretical cognitive science and psychology
neuromorphic technology
applied mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,410
7,778
0.091
* Total Citation Counts Rankings
Ranking Based On Selection: 40
United States
Clifford Stein
Algorithms
Optimization
Operations Research
Scheduling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,237
15,099
0.181
* Total Citation Counts Rankings
Ranking Based On Selection: 41
United States
Deborah Loewenberg Ball
teaching quality
teacher education
mathematics instruction
policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,977
19,351
0.236
* Total Citation Counts Rankings
Ranking Based On Selection: 42
United States
Alan Agresti
statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,297
18,236
0.227
* Total Citation Counts Rankings
Ranking Based On Selection: 43
United States
Christopher Estrada
Algebraic geometry
mathematical physics
noncommutative geometry
low-dimensional topology.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,495
54,162
0.681
* Total Citation Counts Rankings
Ranking Based On Selection: 44
United States
Steven Johnson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,804
20,582
0.261
* Total Citation Counts Rankings
Ranking Based On Selection: 45
United States
David Dunson
Bayesian statistics
machine learning
biostatistics
ecology
neuroscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,344
29,588
0.378
* Total Citation Counts Rankings
Ranking Based On Selection: 46
Canada
Péter Sólymos
Statistical Ecology
Conservation Biology
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,348
47,260
0.611
* Total Citation Counts Rankings
Ranking Based On Selection: 47
United States
Babuska İ
Computational Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,281
12,755
0.176
* Total Citation Counts Rankings
Ranking Based On Selection: 48
United States
Linton C Freeman
social networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,153
19,145
0.265
* Total Citation Counts Rankings
Ranking Based On Selection: 49
United States
Roger M Temam
Partial differential equations
Nonlinear problems
Scientific computing
Fluid mechanics
Geophysical fluid mechanics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,705
13,011
0.192
* Total Citation Counts Rankings
Ranking Based On Selection: 50
United States
Bernie Devlin
Statistical Genetics
Psychiatric Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,436
23,087
0.342
* Total Citation Counts Rankings
Rankings
2,889
United States
1,373
120
Ranking Based On Selection: 26
Alan M Zaslavsky
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106,046
46,234
0.436
Official statistics
health policy
hierarchical models
health care quality
* Total Citation Counts Rankings
Rankings
2,916
United States
1,387
37
Ranking Based On Selection: 27
Charles E Leiserson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,467
19,291
0.183
algorithms
computer science and engineering
graph drawing
parallel computing
performance engineering
* Total Citation Counts Rankings
Rankings
3,130
United States
1,496
127
Ranking Based On Selection: 28
Arthur P Dempster
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
101,516
18,492
0.182
* Total Citation Counts Rankings
Rankings
3,205
United States
1,531
31
Ranking Based On Selection: 29
Terence Tao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
100,489
28,679
0.285
Analysis
Combinatorics
Random Matrix Theory
PDE
* Total Citation Counts Rankings
Rankings
3,443
Canada
132
2
Ranking Based On Selection: 30
HM Srivastava
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,919
42,155
0.435
Special Functions
Number Theory
Integral Transforms
Fractional Calculus
Applied Analysis
* Total Citation Counts Rankings
Rankings
3,521
United States
1,665
26
Ranking Based On Selection: 31
Elliott Lieb
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,799
23,391
0.244
* Total Citation Counts Rankings
Rankings
3,526
Canada
134
24
Ranking Based On Selection: 32
Stephen Walter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,721
22,721
0.237
Statistics
Biostatistics
clinical epidemiology
public health
* Total Citation Counts Rankings
Rankings
3,785
United States
1,790
31
Ranking Based On Selection: 33
Jianqing Fan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,927
35,985
0.391
Statistics
machine learning
finance
economics
operations research
* Total Citation Counts Rankings
Rankings
3,801
United States
1,797
23
Ranking Based On Selection: 34
Paul Rosenbaum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,753
30,942
0.337
* Total Citation Counts Rankings
Rankings
3,836
United States
1,817
94
Ranking Based On Selection: 35
Susan P Holmes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,286
73,300
0.803
Statistics and Biology
Immunology
Microbial Ecology
Reproducible research
MCMC
* Total Citation Counts Rankings
Rankings
3,971
United States
1,884
156
Ranking Based On Selection: 36
Jun S Liu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,524
33,678
0.376
Statistical Machine Learning
Monte Carlo
Bayesian statistics
Computational Biology
Signal processing
* Total Citation Counts Rankings
Rankings
4,039
Canada
157
26
Ranking Based On Selection: 37
N Balakrishnan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,568
24,451
0.276
* Total Citation Counts Rankings
Rankings
4,106
United States
1,940
54
Ranking Based On Selection: 38
Lionel London
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,712
64,686
0.737
Numerical Relativity
Gravitational Wave Modeling
Black Hole Perturbation Theory
* Total Citation Counts Rankings
Rankings
4,281
United States
2,031
11
Ranking Based On Selection: 39
Stephen Grossberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,410
7,778
0.091
computational neuroscience
theoretical cognitive science and psychology
neuromorphic technology
applied mathematics
* Total Citation Counts Rankings
Rankings
4,458
United States
2,119
43
Ranking Based On Selection: 40
Clifford Stein
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,237
15,099
0.181
Algorithms
Optimization
Operations Research
Scheduling
* Total Citation Counts Rankings
Rankings
4,593
United States
2,183
35
Ranking Based On Selection: 41
Deborah Loewenberg Ball
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,977
19,351
0.236
teaching quality
teacher education
mathematics instruction
policy
* Total Citation Counts Rankings
Rankings
4,774
United States
2,258
18
Ranking Based On Selection: 42
Alan Agresti
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,297
18,236
0.227
* Total Citation Counts Rankings
Rankings
4,864
United States
2,313
22
Ranking Based On Selection: 43
Christopher Estrada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,495
54,162
0.681
Algebraic geometry
mathematical physics
noncommutative geometry
low-dimensional topology.
* Total Citation Counts Rankings
Rankings
4,944
United States
2,344
67
Ranking Based On Selection: 44
Steven Johnson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,804
20,582
0.261
* Total Citation Counts Rankings
Rankings
5,004
United States
2,367
40
Ranking Based On Selection: 45
David Dunson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,344
29,588
0.378
Bayesian statistics
machine learning
biostatistics
ecology
neuroscience
* Total Citation Counts Rankings
Rankings
5,091
Canada
199
11
Ranking Based On Selection: 46
Péter Sólymos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,348
47,260
0.611
Statistical Ecology
Conservation Biology
Ecology
* Total Citation Counts Rankings
Rankings
5,678
United States
2,687
21
Ranking Based On Selection: 47
Babuska İ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,281
12,755
0.176
* Total Citation Counts Rankings
Rankings
5,698
United States
2,694
22
Ranking Based On Selection: 48
Linton C Freeman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,153
19,145
0.265
* Total Citation Counts Rankings
Rankings
6,332
United States
2,992
4
Ranking Based On Selection: 49
Roger M Temam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,705
13,011
0.192
Partial differential equations
Nonlinear problems
Scientific computing
Fluid mechanics
Geophysical fluid mechanics
* Total Citation Counts Rankings
Rankings
6,372
United States
3,010
30
Ranking Based On Selection: 50
Bernie Devlin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,436
23,087
0.342