Citation Rankings
Highly Cited Researchers
Reykjavik University Highly Cited Researchers Citation Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,248
5,115
0.220
* Total Citation Counts Rankings
Ranking Based On Selection :2
Computational Biology
Bioinformatics
Genetics
Algorithms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,339
9,793
0.506
* Total Citation Counts Rankings
Ranking Based On Selection :3
CAD
simulation-driven design
numerical optimization
surrogate modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,171
10,524
0.549
* Total Citation Counts Rankings
Ranking Based On Selection :4
violence
trauma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,153
10,839
0.972
* Total Citation Counts Rankings
Ranking Based On Selection :5
psychooncolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,095
3,385
0.335
* Total Citation Counts Rankings
Ranking Based On Selection :6
Distributed algorithms
Approximation algorithms
Wireless networking
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,835
1,920
0.217
* Total Citation Counts Rankings
Ranking Based On Selection :7
Avatars
Intelligent Virtual Agents
Socially Interactive Agents
Virtual Environments
Virtual Reality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,875
1,501
0.218
* Total Citation Counts Rankings
Ranking Based On Selection :8
Clinical Psychology
Cognitive Behaviorual Therapy
Transdiagnostic therapy
ADHD
False Confessions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,576
2,299
0.350
* Total Citation Counts Rankings
Ranking Based On Selection :9
Psychology
Cognitive Behaviorual Therapy
Transdiagnostic
ADHD
False Confessions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,486
2,315
0.357
* Total Citation Counts Rankings
Ranking Based On Selection :10
General Machine Intelligence
Cognitive Science
Agent-Based Simulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,231
1,745
0.280
* Total Citation Counts Rankings
Ranking Based On Selection :11
Sleep
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,012
4,677
0.778
* Total Citation Counts Rankings
Ranking Based On Selection :12
Network systems and Services
Fintech
Blockchain
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,319
1,215
0.228
* Total Citation Counts Rankings
Ranking Based On Selection :13
Concurrency theory
runtime verification
structural operational semantics
logic in computer science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,875
1,293
0.265
* Total Citation Counts Rankings
Ranking Based On Selection :14
Water resources
Ecology
Hydrology
Sustainability
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,304
3,404
0.791
* Total Citation Counts Rankings
Ranking Based On Selection :15
sustainability
concrete
rheology
cement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,650
1,580
0.433
* Total Citation Counts Rankings
Ranking Based On Selection :16
Neuropsychology
aging/dementia/MCI
concussion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,554
1,667
0.469
* Total Citation Counts Rankings
Ranking Based On Selection :17
Semantics for concurrent and reactive systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,459
1,157
0.334
* Total Citation Counts Rankings
Ranking Based On Selection :18
Artificial Intelligence
Heuristic Search
General Game Playing
Computer Games
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,292
820
0.249
* Total Citation Counts Rankings
Ranking Based On Selection :19
Platelet lysates
Platelets
pathogen reduction
Stem cell biology
Tissue engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,084
1,654
0.536
* Total Citation Counts Rankings
Ranking Based On Selection :20
Computer Science
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,081
579
0.188
* Total Citation Counts Rankings
Ranking Based On Selection :21
logic
semantics
programming languages
functional programming
type theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,909
1,012
0.348
* Total Citation Counts Rankings
Ranking Based On Selection :22
Innovation
service innovation
design
experience
business models
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,837
2,019
0.712
* Total Citation Counts Rankings
Ranking Based On Selection :23
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,688
1,744
0.649
* Total Citation Counts Rankings
Ranking Based On Selection :24
Marketing
Consumer Psychology
Consumer Behavior Analysis
Digital Marketing
In-Store Marketing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,646
1,942
0.734
* Total Citation Counts Rankings
Ranking Based On Selection :25
Management accounting
information technology
CSR
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,607
1,276
0.489
* Total Citation Counts Rankings
Rankings
31,795
23
1
Ranking Based On Selection: 1
Andrei Manolescu
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,248
5,115
0.220
* Total Citation Counts Rankings
Rankings
41,212
28
2
Ranking Based On Selection: 2
Bjarni V. Halldorsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,339
9,793
0.506
Computational Biology
Bioinformatics
Genetics
Algorithms
* Total Citation Counts Rankings
Rankings
41,691
29
3
Ranking Based On Selection: 3
Slawomir Koziel
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,171
10,524
0.549
CAD
simulation-driven design
numerical optimization
surrogate modeling
* Total Citation Counts Rankings
Rankings
84,192
52
4
Ranking Based On Selection: 4
Rannveig Sigurvinsdottir
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,153
10,839
0.972
* Total Citation Counts Rankings
Rankings
94,738
55
5
Ranking Based On Selection: 5
Heiddis Valdimarsdottir
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,095
3,385
0.335
* Total Citation Counts Rankings
Rankings
110,245
63
6
Ranking Based On Selection: 6
Magnús M Halldórsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,835
1,920
0.217
Distributed algorithms
Approximation algorithms
Wireless networking
* Total Citation Counts Rankings
Rankings
145,157
81
7
Ranking Based On Selection: 7
Hannes Högni Vilhjálmsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,875
1,501
0.218
Avatars
Intelligent Virtual Agents
Socially Interactive Agents
Virtual Environments
Virtual Reality
* Total Citation Counts Rankings
Rankings
152,015
89
8
Ranking Based On Selection: 8
Jón Friðrik Sigurðsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,576
2,299
0.350
Clinical Psychology
Cognitive Behaviorual Therapy
Transdiagnostic therapy
ADHD
False Confessions
* Total Citation Counts Rankings
Rankings
154,193
90
9
Ranking Based On Selection: 9
Sigurdsson JF
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,486
2,315
0.357
Psychology
Cognitive Behaviorual Therapy
Transdiagnostic
ADHD
False Confessions
* Total Citation Counts Rankings
Rankings
160,665
94
10
Ranking Based On Selection: 10
Kristinn R. Thórisson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,231
1,745
0.280
General Machine Intelligence
Cognitive Science
Agent-Based Simulation
* Total Citation Counts Rankings
Rankings
166,562
99
11
Ranking Based On Selection: 11
Erna Sif Arnardottir
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,012
4,677
0.778
* Total Citation Counts Rankings
Rankings
187,876
113
12
Ranking Based On Selection: 12
Gísli Hjálmtýsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,319
1,215
0.228
Network systems and Services
Fintech
Blockchain
* Total Citation Counts Rankings
Rankings
204,477
124
13
Ranking Based On Selection: 13
Luca Aceto
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,875
1,293
0.265
Concurrency theory
runtime verification
structural operational semantics
logic in computer science
* Total Citation Counts Rankings
Rankings
229,809
141
14
Ranking Based On Selection: 14
David C Finger
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,304
3,404
0.791
Water resources
Ecology
Hydrology
Sustainability
Renewable Energy
* Total Citation Counts Rankings
Rankings
266,682
160
15
Ranking Based On Selection: 15
Ólafur H Wallevik
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,650
1,580
0.433
sustainability
concrete
rheology
cement
* Total Citation Counts Rankings
Rankings
272,881
166
16
Ranking Based On Selection: 16
María K Jónsdóttir
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,554
1,667
0.469
Neuropsychology
aging/dementia/MCI
concussion
* Total Citation Counts Rankings
Rankings
279,284
172
17
Ranking Based On Selection: 17
Anna Ingolfsdottir
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,459
1,157
0.334
Semantics for concurrent and reactive systems
* Total Citation Counts Rankings
Rankings
291,357
178
18
Ranking Based On Selection: 18
Yngvi Björnsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,292
820
0.249
Artificial Intelligence
Heuristic Search
General Game Playing
Computer Games
* Total Citation Counts Rankings
Rankings
307,720
191
19
Ranking Based On Selection: 19
Olafur E Sigurjonsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,084
1,654
0.536
Platelet lysates
Platelets
pathogen reduction
Stem cell biology
Tissue engineering
* Total Citation Counts Rankings
Rankings
307,996
192
20
Ranking Based On Selection: 20
Ari Jonsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,081
579
0.188
Computer Science
Artificial Intelligence
* Total Citation Counts Rankings
Rankings
322,939
205
21
Ranking Based On Selection: 21
Tarmo Uustalu
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,909
1,012
0.348
logic
semantics
programming languages
functional programming
type theory
* Total Citation Counts Rankings
Rankings
329,486
206
22
Ranking Based On Selection: 22
Marina Candi
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,837
2,019
0.712
Innovation
service innovation
design
experience
business models
* Total Citation Counts Rankings
Rankings
344,288
221
23
Ranking Based On Selection: 23
Bryndís Björk Ásgeirsdóttir
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,688
1,744
0.649
* Total Citation Counts Rankings
Rankings
348,652
226
24
Ranking Based On Selection: 24
Valdimar Sigurdsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,646
1,942
0.734
Marketing
Consumer Psychology
Consumer Behavior Analysis
Digital Marketing
In-Store Marketing
* Total Citation Counts Rankings
Rankings
352,744
228
25
Ranking Based On Selection: 25
Pall Rikhardsson
Reykjavik University
Reykjavík, Iceland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,607
1,276
0.489
Management accounting
information technology
CSR