Citation Rankings
Highly Cited Researchers
University of California Irvine Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) 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
methodology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,716
25,391
0.375
* Total Citation Counts Rankings
Ranking Based On Selection :27
Cannabis
cannabinoids and endocannabinoids
lipid messengers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,750
18,153
0.272
* Total Citation Counts Rankings
Ranking Based On Selection :28
hydrology
Climate
Systems Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,037
26,260
0.404
* Total Citation Counts Rankings
Ranking Based On Selection :29
Cosmology
large scale structure
IR background
reionization
sub-mm galaxies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,647
30,047
0.465
* Total Citation Counts Rankings
Ranking Based On Selection :30
Immigration
race and ethnicity
transition to adulthood
inequality
sociology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,539
15,323
0.237
* Total Citation Counts Rankings
Ranking Based On Selection :31
startup business
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,204
48,730
0.771
* Total Citation Counts Rankings
Ranking Based On Selection :32
Biosphere Atmosphere Interactions
Atmospheric Chemistry
emissions
surface fluxes
biogenic volatile organic compounds
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,651
22,397
0.357
* Total Citation Counts Rankings
Ranking Based On Selection :33
eye
retina
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,237
15,683
0.252
* Total Citation Counts Rankings
Ranking Based On Selection :34
social economics and finance
behavioral economics and finance
investments
corporate finance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,819
23,282
0.377
* Total Citation Counts Rankings
Ranking Based On Selection :35
Multimedia
Search
Social computing
Artifical Intelligence
Computer Vision
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,073
13,440
0.224
* Total Citation Counts Rankings
Ranking Based On Selection :36
Nonlinear x-ray spectroscopy
theoretical chemistry
quantum optics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,745
15,203
0.254
* Total Citation Counts Rankings
Ranking Based On Selection :37
Vaccines
Infectious Disease
Adaptive Immunity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,156
14,417
0.252
* Total Citation Counts Rankings
Ranking Based On Selection :38
statistics
biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,024
22,626
0.397
* Total Citation Counts Rankings
Ranking Based On Selection :39
Medical Oncology
Targeted therapy
Lung cancer
Developmental therapeutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,722
32,402
0.571
* Total Citation Counts Rankings
Ranking Based On Selection :40
education
educational technology
literacy
digital learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,690
18,815
0.344
* Total Citation Counts Rankings
Ranking Based On Selection :41
cross cultural research
mental health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,232
42,329
0.781
* Total Citation Counts Rankings
Ranking Based On Selection :42
Doctor-patient relationship
Physician-patient-interaction
Diabetes
Fee-for-service
Quality care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,174
10,659
0.197
* Total Citation Counts Rankings
Ranking Based On Selection :43
Cosmology
Dark Matter
Galaxy Formation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,020
25,172
0.466
* Total Citation Counts Rankings
Ranking Based On Selection :44
Physical Chemistry
Electrochemistry
Electrocatalysis
Fuel Cells
Batteries
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,900
26,432
0.490
* Total Citation Counts Rankings
Ranking Based On Selection :45
brain imaging
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,503
5,790
0.110
* Total Citation Counts Rankings
Ranking Based On Selection :46
Cryosphere
Greenland
Antarctica
Glaciology
Polar Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,248
23,263
0.454
* Total Citation Counts Rankings
Ranking Based On Selection :47
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,053
20,134
0.394
* Total Citation Counts Rankings
Ranking Based On Selection :48
Alzheimer's disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,915
11,843
0.233
* Total Citation Counts Rankings
Ranking Based On Selection :49
Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,775
20,539
0.405
* Total Citation Counts Rankings
Ranking Based On Selection :50
ferroelectrics
multiferroics
catalysis
oxide heterostructures
transmission electron microscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,590
29,046
0.586
* Total Citation Counts Rankings
Rankings
6,141
2,916
26
Ranking Based On Selection: 26
Charles Ragin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,716
25,391
0.375
* Total Citation Counts Rankings
Rankings
6,281
2,978
27
Ranking Based On Selection: 27
Daniele Piomelli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,750
18,153
0.272
Cannabis
cannabinoids and endocannabinoids
lipid messengers
* Total Citation Counts Rankings
Rankings
6,546
3,093
28
Ranking Based On Selection: 28
Soroosh Sorooshian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,037
26,260
0.404
hydrology
Climate
Systems Engineering
* Total Citation Counts Rankings
Rankings
6,613
3,127
29
Ranking Based On Selection: 29
Asantha Cooray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,647
30,047
0.465
Cosmology
large scale structure
IR background
reionization
sub-mm galaxies
* Total Citation Counts Rankings
Rankings
6,629
3,135
30
Ranking Based On Selection: 30
Rubén G Rumbaut
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,539
15,323
0.237
Immigration
race and ethnicity
transition to adulthood
inequality
sociology
* Total Citation Counts Rankings
Rankings
6,864
3,259
31
Ranking Based On Selection: 31
Sameer Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,204
48,730
0.771
* Total Citation Counts Rankings
Rankings
6,963
3,307
32
Ranking Based On Selection: 32
Alex Guenther
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,651
22,397
0.357
Biosphere Atmosphere Interactions
Atmospheric Chemistry
emissions
surface fluxes
biogenic volatile organic compounds
* Total Citation Counts Rankings
Rankings
7,051
3,342
33
Ranking Based On Selection: 33
Krzysztof Palczewski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,237
15,683
0.252
* Total Citation Counts Rankings
Rankings
7,132
3,386
34
Ranking Based On Selection: 34
David Hirshleifer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,819
23,282
0.377
social economics and finance
behavioral economics and finance
investments
corporate finance
* Total Citation Counts Rankings
Rankings
7,440
3,532
35
Ranking Based On Selection: 35
Ramesh Jain
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,073
13,440
0.224
Multimedia
Search
Social computing
Artifical Intelligence
Computer Vision
* Total Citation Counts Rankings
Rankings
7,515
3,569
36
Ranking Based On Selection: 36
Shaul Mukamel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,745
15,203
0.254
Nonlinear x-ray spectroscopy
theoretical chemistry
quantum optics
* Total Citation Counts Rankings
Rankings
8,060
3,846
37
Ranking Based On Selection: 37
Philip Felgner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,156
14,417
0.252
Vaccines
Infectious Disease
Adaptive Immunity
* Total Citation Counts Rankings
Rankings
8,088
3,860
38
Ranking Based On Selection: 38
Hal Stern
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,024
22,626
0.397
* Total Citation Counts Rankings
Rankings
8,158
3,900
39
Ranking Based On Selection: 39
Sai Hong Ignatius Ou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,722
32,402
0.571
Medical Oncology
Targeted therapy
Lung cancer
Developmental therapeutics
* Total Citation Counts Rankings
Rankings
8,683
4,152
40
Ranking Based On Selection: 40
Mark Warschauer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,690
18,815
0.344
education
educational technology
literacy
digital learning
* Total Citation Counts Rankings
Rankings
8,794
4,202
41
Ranking Based On Selection: 41
Kyle Chang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,232
42,329
0.781
* Total Citation Counts Rankings
Rankings
8,819
4,212
42
Ranking Based On Selection: 42
Sheldon Greenfield
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,174
10,659
0.197
Doctor-patient relationship
Physician-patient-interaction
Diabetes
Fee-for-service
Quality care
* Total Citation Counts Rankings
Rankings
8,864
4,234
43
Ranking Based On Selection: 43
James Bullock
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,020
25,172
0.466
* Total Citation Counts Rankings
Rankings
8,894
4,250
44
Ranking Based On Selection: 44
Vojislav R Stamenkovic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,900
26,432
0.490
Physical Chemistry
Electrochemistry
Electrocatalysis
Fuel Cells
Batteries
* Total Citation Counts Rankings
Rankings
9,251
4,416
45
Ranking Based On Selection: 45
Monte Buchsbaum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,503
5,790
0.110
* Total Citation Counts Rankings
Rankings
9,618
4,582
46
Ranking Based On Selection: 46
Eric Rignot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,248
23,263
0.454
Cryosphere
Greenland
Antarctica
Glaciology
Polar Science
* Total Citation Counts Rankings
Rankings
9,683
4,619
47
Ranking Based On Selection: 47
Claudia Kawas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,053
20,134
0.394
* Total Citation Counts Rankings
Rankings
9,735
4,641
48
Ranking Based On Selection: 48
Charles Glabe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,915
11,843
0.233
* Total Citation Counts Rankings
Rankings
9,775
4,659
49
Ranking Based On Selection: 49
Enrique Lavernia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,775
20,539
0.405
* Total Citation Counts Rankings
Rankings
10,139
4,820
50
Ranking Based On Selection: 50
Xiaoqing Pan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,590
29,046
0.586
ferroelectrics
multiferroics
catalysis
oxide heterostructures
transmission electron microscopy