Citation Rankings
Highly Cited Researchers

Engineering & Technology / Computer Science Highly Cited Researchers 572 Scientists Citation in Finland 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: 1
Finland
Matti Pietikäinen
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
Finland
Aapo Hyvarinen
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
Finland
Erkki Oja
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
Finland
Heikki Mannila
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
Finland
Timo Ojala
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
Finland
Karen Egiazarian Eguiazarian
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
Finland
Moncef Gabbouj
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
Finland
Jaakko Lehtinen
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
Finland
Guoying Zhao
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
Finland
Hannu Tt Toivonen
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
Finland
V.Katkovnik
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
Finland
Tuomas Virtanen
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
Finland
Samuel Kaski
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
Finland
Pekka Abrahamsson
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
Finland
Patrik Hoyer
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
Finland
Janne Heikkilä
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
Finland
Mika Ylianttila
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
Finland
Sasu Tarkoma
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
Finland
Simo Särkkä
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
Finland
Juho Kannala
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
Finland
Valeriy Vyatkin
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
Finland
Leo Lahti
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
Finland
Esa Rahtu
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
Finland
Pekka Nikander
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
Finland
Pasi Fränti
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
* Total Citation Counts Rankings
Rankings
3,707
Finland
16
1
Ranking Based On Selection: 1
Matti Pietikäinen
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
* Total Citation Counts Rankings
Rankings
5,636
Finland
25
14
Ranking Based On Selection: 2
Aapo Hyvarinen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,600
21,000
0.289
Machine Learning
Computational Neuroscience
#UnivHelsinkiCS
* Total Citation Counts Rankings
Rankings
5,974
Finland
26
2
Ranking Based On Selection: 3
Erkki Oja
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,161
10,317
0.147
* Total Citation Counts Rankings
Rankings
12,178
Finland
47
5
Ranking Based On Selection: 4
Heikki Mannila
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,919
6,414
0.143
computer science
algorithms
machine learning
data analysis
* Total Citation Counts Rankings
Rankings
13,918
Finland
57
4
Ranking Based On Selection: 5
Timo Ojala
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
* Total Citation Counts Rankings
Rankings
15,093
Finland
62
6
Ranking Based On Selection: 6
Karen Egiazarian Eguiazarian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,376
16,164
0.411
image processing
image restoration
computational imaging
sparse representations
* Total Citation Counts Rankings
Rankings
18,948
Finland
86
8
Ranking Based On Selection: 7
Moncef Gabbouj
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
* Total Citation Counts Rankings
Rankings
21,087
Finland
98
13
Ranking Based On Selection: 8
Jaakko Lehtinen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,748
28,175
0.887
computer graphics
computer vision
machine learning
* Total Citation Counts Rankings
Rankings
21,830
Finland
102
8
Ranking Based On Selection: 9
Guoying Zhao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,048
18,742
0.604
Affective Computing
Artificial Intelligence
Computer Vision
Pattern Recognition
* Total Citation Counts Rankings
Rankings
25,799
Finland
121
42
Ranking Based On Selection: 10
Hannu Tt Toivonen
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
* Total Citation Counts Rankings
Rankings
27,568
Finland
127
2
Ranking Based On Selection: 11
V.Katkovnik
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
* Total Citation Counts Rankings
Rankings
36,015
Finland
166
14
Ranking Based On Selection: 12
Tuomas Virtanen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,153
11,936
0.539
* Total Citation Counts Rankings
Rankings
36,258
Finland
168
18
Ranking Based On Selection: 13
Samuel Kaski
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
* Total Citation Counts Rankings
Rankings
45,448
Finland
216
17
Ranking Based On Selection: 14
Pekka Abrahamsson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,733
7,849
0.419
* Total Citation Counts Rankings
Rankings
52,960
Finland
262
30
Ranking Based On Selection: 15
Patrik Hoyer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,729
5,737
0.343
* Total Citation Counts Rankings
Rankings
59,637
Finland
300
29
Ranking Based On Selection: 16
Janne Heikkilä
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,317
4,825
0.315
computer vision
machine vision
pattern recognition
* Total Citation Counts Rankings
Rankings
62,350
Finland
310
31
Ranking Based On Selection: 17
Mika Ylianttila
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,796
9,770
0.660
* Total Citation Counts Rankings
Rankings
68,231
Finland
347
109
Ranking Based On Selection: 18
Sasu Tarkoma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,810
7,569
0.548
Internet technology
mobile computing
Data Science
middleware
#UnivHelsinkiCS
* Total Citation Counts Rankings
Rankings
70,296
Finland
364
35
Ranking Based On Selection: 19
Simo Särkkä
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
* Total Citation Counts Rankings
Rankings
71,077
Finland
373
36
Ranking Based On Selection: 20
Juho Kannala
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,376
8,832
0.660
* Total Citation Counts Rankings
Rankings
74,752
Finland
395
37
Ranking Based On Selection: 21
Valeriy Vyatkin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,855
5,282
0.411
Automation
Software
Engineering
Artificial Intelligence
* Total Citation Counts Rankings
Rankings
76,325
Finland
402
37
Ranking Based On Selection: 22
Leo Lahti
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,633
8,920
0.706
* Total Citation Counts Rankings
Rankings
80,826
Finland
430
30
Ranking Based On Selection: 23
Esa Rahtu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,049
7,852
0.652
Computer Vision
Image Understanding
Machine Learning
* Total Citation Counts Rankings
Rankings
85,116
Finland
464
43
Ranking Based On Selection: 24
Pekka Nikander
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,544
1,141
0.099
Computer security
Embedded systems
Distributed systems
* Total Citation Counts Rankings
Rankings
85,899
Finland
467
41
Ranking Based On Selection: 25
Pasi Fränti
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