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: 1
computer vision
pattern recognition
biometrics
affective computing
artificial intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,069
28,676
0.308
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Machine Learning
Computational Neuroscience
#UnivHelsinkiCS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,600
21,000
0.289
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Machine learning
pattern recognition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,161
10,317
0.147
* Total Citation Counts Rankings
Ranking Based On Selection: 4
computer science
algorithms
machine learning
data analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,919
6,414
0.143
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Virtual reality
ubiquitous computing
urban computing
multimedia
pattern recognition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,368
10,713
0.259
* Total Citation Counts Rankings
Ranking Based On Selection: 6
image processing
image restoration
computational imaging
sparse representations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,376
16,164
0.411
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Machine learning
Artificial intelligence
Signal processing
image processing
video communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,016
18,985
0.558
* Total Citation Counts Rankings
Ranking Based On Selection: 8
computer graphics
computer vision
machine learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,748
28,175
0.887
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Affective Computing
Artificial Intelligence
Computer Vision
Pattern Recognition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,048
18,742
0.604
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Computer Science
Data Science
Computational Creativity
Artificial Intelligence
#UnivHelsinkiCS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,826
4,221
0.152
* Total Citation Counts Rankings
Ranking Based On Selection: 11
image processing
stochastic methods
optimization
inverse imaging
coherent wave field processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,653
11,566
0.434
* Total Citation Counts Rankings
Ranking Based On Selection: 12
machine listening
audio signal processing
audio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,153
11,936
0.539
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Probabilistic machine learning
human-AI interaction
simulation-based inference
computational
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,042
6,939
0.315
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Software Engineering
Information Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,733
7,849
0.419
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Machine Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,729
5,737
0.343
* Total Citation Counts Rankings
Ranking Based On Selection: 16
computer vision
machine vision
pattern recognition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,317
4,825
0.315
* Total Citation Counts Rankings
Ranking Based On Selection: 17
networks and systems
network security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,796
9,770
0.660
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Internet technology
mobile computing
Data Science
middleware
#UnivHelsinkiCS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,810
7,569
0.548
* Total Citation Counts Rankings
Ranking Based On Selection: 19
multi-sensor data fusion
Bayesian filtering and smoothing
machine learning
medical technology
AI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,493
7,900
0.585
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Computer Vision
Machine Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,376
8,832
0.660
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Automation
Software
Engineering
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,855
5,282
0.411
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Data Science and Complex Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,633
8,920
0.706
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Computer Vision
Image Understanding
Machine Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,049
7,852
0.652
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Computer security
Embedded systems
Distributed systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,544
1,141
0.099
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Clustering
Location-based services
Image Compression
Machine Learning
Data Mining
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,459
5,076
0.443
Matti Pietikäinen
University of Oulu
Oulu, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,069
28,676
0.308
computer vision
pattern recognition
biometrics
affective computing
artificial intelligence
Aapo Hyvarinen
University of Helsinki
Helsinki, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,600
21,000
0.289
Machine Learning
Computational Neuroscience
#UnivHelsinkiCS
Erkki Oja
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,161
10,317
0.147
Machine learning
pattern recognition
Heikki Mannila
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,919
6,414
0.143
computer science
algorithms
machine learning
data analysis
Timo Ojala
University of Oulu
Oulu, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,368
10,713
0.259
Virtual reality
ubiquitous computing
urban computing
multimedia
pattern recognition
Karen Egiazarian Eguiazarian
Tampere University
Tampere, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,376
16,164
0.411
image processing
image restoration
computational imaging
sparse representations
Moncef Gabbouj
Tampere University
Tampere, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,016
18,985
0.558
Machine learning
Artificial intelligence
Signal processing
image processing
video communication
Jaakko Lehtinen
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,748
28,175
0.887
computer graphics
computer vision
machine learning
Guoying Zhao
University of Oulu
Oulu, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,048
18,742
0.604
Affective Computing
Artificial Intelligence
Computer Vision
Pattern Recognition
Hannu Tt Toivonen
University of Helsinki
Helsinki, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,826
4,221
0.152
Computer Science
Data Science
Computational Creativity
Artificial Intelligence
#UnivHelsinkiCS
V.Katkovnik
BioMediTech
Tampere, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,653
11,566
0.434
image processing
stochastic methods
optimization
inverse imaging
coherent wave field processing
Tuomas Virtanen
Tampere University
Tampere, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,153
11,936
0.539
machine listening
audio signal processing
audio
Samuel Kaski
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,042
6,939
0.315
Probabilistic machine learning
human-AI interaction
simulation-based inference
computational
Pekka Abrahamsson
Jyväskylä University
Jyväskylä, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,733
7,849
0.419
Software Engineering
Information Systems
Patrik Hoyer
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,729
5,737
0.343
Janne Heikkilä
University of Oulu
Oulu, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,317
4,825
0.315
computer vision
machine vision
pattern recognition
Mika Ylianttila
University of Oulu
Oulu, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,796
9,770
0.660
networks and systems
network security
Sasu Tarkoma
University of Helsinki
Helsinki, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,810
7,569
0.548
Internet technology
mobile computing
Data Science
middleware
#UnivHelsinkiCS
Simo Särkkä
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,493
7,900
0.585
multi-sensor data fusion
Bayesian filtering and smoothing
machine learning
medical technology
AI
Juho Kannala
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,376
8,832
0.660
Computer Vision
Machine Learning
Valeriy Vyatkin
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,855
5,282
0.411
Automation
Software
Engineering
Artificial Intelligence
Leo Lahti
University of Turku
Turku, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,633
8,920
0.706
Data Science and Complex Systems
Esa Rahtu
Tampere University
Tampere, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,049
7,852
0.652
Computer Vision
Image Understanding
Machine Learning
Pekka Nikander
Aalto University
Espoo, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,544
1,141
0.099
Computer security
Embedded systems
Distributed systems
Pasi Fränti
University of Eastern Finland
Joensuu, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,459
5,076
0.443
Clustering
Location-based services
Image Compression
Machine Learning
Data Mining