Citation Rankings
Highly Cited Researchers
Thomson Reuters 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 :1
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,212
484
0.067
* Total Citation Counts Rankings
Ranking Based On Selection :2
Natural Language Processing
Computational Linguistics
Text Mining
Summarization
Natural Language
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,717
1,824
0.491
* Total Citation Counts Rankings
Ranking Based On Selection :3
data cultures and policy
technology & social justice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,775
1,610
0.907
* Total Citation Counts Rankings
Ranking Based On Selection :4
Natural Language Processing
Machine Learning
Information Retrieval
Image Processing
Data Mining
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,712
536
0.313
* Total Citation Counts Rankings
Ranking Based On Selection :5
Information Retrieval
Natural Language Processing
Artificial Intelligence & Law
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,700
728
0.428
* Total Citation Counts Rankings
Ranking Based On Selection :6
Data Mining
Information Retrieval
NLP
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,539
679
0.441
* Total Citation Counts Rankings
Ranking Based On Selection :7
Information Retrieval
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,420
292
0.206
* Total Citation Counts Rankings
Ranking Based On Selection :8
Data Science
Machine Learning
NLP
Bioinformatics
Stem Cells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,363
867
0.636
* Total Citation Counts Rankings
Ranking Based On Selection :9
Artificial Intelligence
Natural Language Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,228
1,102
0.897
* Total Citation Counts Rankings
Ranking Based On Selection :10
Semantic Web
Information Integration
Legal Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
905
601
0.664
* Total Citation Counts Rankings
Ranking Based On Selection :11
Database
Security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
681
141
0.207
* Total Citation Counts Rankings
Ranking Based On Selection :12
machine learning
natural language processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
643
208
0.323
* Total Citation Counts Rankings
Ranking Based On Selection :13
Network security
data analytics
simulation
agile methodology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
562
69
0.123
* Total Citation Counts Rankings
Ranking Based On Selection :14
audiotactile interactions
cochlear implant
multisensory integration
auditory scene analysis
sensory training
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
335
232
0.693
* Total Citation Counts Rankings
Ranking Based On Selection :15
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
310
6
0.019
* Total Citation Counts Rankings
Ranking Based On Selection :16
Natural Language Processing
Machine Learning
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
217
214
0.986
* Total Citation Counts Rankings
Ranking Based On Selection :17
Artificial Intelligence
Knowledge Graphs
NLP
Legaltech
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
211
175
0.829
* Total Citation Counts Rankings
Ranking Based On Selection :18
NLP
Computational Linguistics
IR
Semantic Technologies
Social Media Mining
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
149
147
0.987
* Total Citation Counts Rankings
Ranking Based On Selection :19
NLP
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95
95
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :20
NLP
Databases
Data Profiling
Data Science for Social Good
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69
69
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :21
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39
39
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :22
Machine Learning
Deep Learning
Computer Vision
NLP
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18
16
0.889
* Total Citation Counts Rankings
Ranking Based On Selection :23
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :24
Legal Information
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6
2
0.333
* Total Citation Counts Rankings
Ranking Based On Selection :25
History
Libraries
Modernity
Law
Library Information Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total Citation Counts Rankings
Rankings
141,792
2,748
1
Ranking Based On Selection: 1
Douglas M Jansen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,212
484
0.067
* Total Citation Counts Rankings
Rankings
269,108
5,452
2
Ranking Based On Selection: 2
Frank Schilder
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,717
1,824
0.491
Natural Language Processing
Computational Linguistics
Text Mining
Summarization
Natural Language
* Total Citation Counts Rankings
Rankings
478,786
9,706
3
Ranking Based On Selection: 3
Christine T Wolf
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,775
1,610
0.907
* Total Citation Counts Rankings
Rankings
490,967
9,935
4
Ranking Based On Selection: 4
Khalid Al-Kofahi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,712
536
0.313
Natural Language Processing
Machine Learning
Information Retrieval
Image Processing
Data Mining
* Total Citation Counts Rankings
Rankings
493,300
9,979
5
Ranking Based On Selection: 5
Jack G Conrad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,700
728
0.428
Information Retrieval
Natural Language Processing
Artificial Intelligence & Law
* Total Citation Counts Rankings
Rankings
526,865
10,608
6
Ranking Based On Selection: 6
Bilyana Taneva|Bilyana Taneva-Popova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,539
679
0.441
Data Mining
Information Retrieval
NLP
* Total Citation Counts Rankings
Rankings
554,297
11,109
7
Ranking Based On Selection: 7
Isabelle Moulinier
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,420
292
0.206
Information Retrieval
Artificial Intelligence
* Total Citation Counts Rankings
Rankings
568,357
11,355
8
Ranking Based On Selection: 8
Stavroula (Laura) Skylaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,363
867
0.636
Data Science
Machine Learning
NLP
Bioinformatics
Stem Cells
* Total Citation Counts Rankings
Rankings
604,675
12,042
9
Ranking Based On Selection: 9
Claudia Schulz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,228
1,102
0.897
Artificial Intelligence
Natural Language Processing
* Total Citation Counts Rankings
Rankings
714,387
13,798
10
Ranking Based On Selection: 10
Dezhao Song
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
905
601
0.664
Semantic Web
Information Integration
Legal Artificial Intelligence
* Total Citation Counts Rankings
Rankings
814,090
15,434
11
Ranking Based On Selection: 11
Lei Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
681
141
0.207
* Total Citation Counts Rankings
Rankings
833,287
15,747
12
Ranking Based On Selection: 12
Christopher Dozier
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
643
208
0.323
machine learning
natural language processing
* Total Citation Counts Rankings
Rankings
876,981
16,458
13
Ranking Based On Selection: 13
Sanjay Ramaswamy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
562
69
0.123
Network security
data analytics
simulation
agile methodology
* Total Citation Counts Rankings
Rankings
1,079,490
19,407
14
Ranking Based On Selection: 14
Simon Landry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
335
232
0.693
audiotactile interactions
cochlear implant
multisensory integration
auditory scene analysis
sensory training
* Total Citation Counts Rankings
Rankings
1,111,618
19,856
15
Ranking Based On Selection: 15
Stephen Takats
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
310
6
0.019
* Total Citation Counts Rankings
Rankings
1,259,923
21,939
16
Ranking Based On Selection: 16
Dhivya Chinnappa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
217
214
0.986
Natural Language Processing
Machine Learning
Artificial Intelligence
* Total Citation Counts Rankings
Rankings
1,272,349
22,124
17
Ranking Based On Selection: 17
Alina Petrova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
211
175
0.829
Artificial Intelligence
Knowledge Graphs
NLP
Legaltech
* Total Citation Counts Rankings
Rankings
1,420,357
24,217
18
Ranking Based On Selection: 18
Hawre Hosseini
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
149
147
0.987
NLP
Computational Linguistics
IR
Semantic Technologies
Social Media Mining
* Total Citation Counts Rankings
Rankings
1,604,397
26,708
19
Ranking Based On Selection: 19
George Sanchez
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95
95
1.000
* Total Citation Counts Rankings
Rankings
1,722,854
28,444
20
Ranking Based On Selection: 20
Melicaalsadat Mirsafian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69
69
1.000
* Total Citation Counts Rankings
Rankings
1,903,410
31,055
21
Ranking Based On Selection: 21
John S Hudzina
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39
39
1.000
* Total Citation Counts Rankings
Rankings
2,098,436
33,902
22
Ranking Based On Selection: 22
Nina Hristozova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18
16
0.889
Machine Learning
Deep Learning
Computer Vision
NLP
* Total Citation Counts Rankings
Rankings
2,263,337
36,297
23
Ranking Based On Selection: 23
Johanna Harrison
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total Citation Counts Rankings
Rankings
2,275,294
36,432
24
Ranking Based On Selection: 24
Matthew Carey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6
2
0.333
* Total Citation Counts Rankings
Rankings
2,360,512
37,753
25
Ranking Based On Selection: 25
Michael Mishler
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
History
Libraries
Modernity
Law
Library Information Systems