Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
426,945
Country Rank
310
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Ilian Kh. Iliev](https://cdn.adscientificindex.com/pictures/e5/4413342.jpg)
Astronomy
Astrophysics
Stellar Atmospheres
Binary Stars
Stellar Spectra
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
33
4
0.121
* Total i10 Index Rankings
World Rank
475,033
Country Rank
367
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Stoyanka Peneva](/user/assets/images/profile/no-profile-photo.png)
pre-main sequence stars
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
19
0.655
* Total i10 Index Rankings
World Rank
526,175
Country Rank
441
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Daniela Kirilova](https://cdn.adscientificindex.com/pictures/fd/4413319.jpg)
cosmology
astroparticle physics
neutrino physics
theoretical physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
2
0.077
* Total i10 Index Rankings
World Rank
582,919
Country Rank
509
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Kamen Kozarev](/user/assets/images/profile/no-profile-photo.png)
Space Physics
Solar Physics
Space Weather
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
21
0.955
* Total i10 Index Rankings
World Rank
633,620
Country Rank
584
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Antoaneta Antonova](https://cdn.adscientificindex.com/pictures/d5/4413308.jpg)
Astronomy
Astrophysics
Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
14
0.700
* Total i10 Index Rankings
World Rank
739,452
Country Rank
748
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Vesselin Sinigersky](/user/assets/images/profile/no-profile-photo.png)
PEM FUEL CELL
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
6
0.375
* Total i10 Index Rankings
World Rank
813,759
Country Rank
858
Institution Rank : 7
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Rositsa Miteva](https://cdn.adscientificindex.com/pictures/6e/4484534.jpg)
Solar physics
Space weather
SEPs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
* Total i10 Index Rankings
World Rank
822,127
Country Rank
868
Institution Rank : 8
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Daniela Dzhonova-Atanasova](/user/assets/images/profile/no-profile-photo.png)
Heat and Mass Transfer Processes
Fluid Dynamics
Energy Efficiency in Chemical Engineering and Renewable Energy Resources
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
9
0.692
* Total i10 Index Rankings
World Rank
827,824
Country Rank
880
Institution Rank : 9
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Tzvetan Ostromsky](/pictures/87/5522884.jpg)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
6
0.462
* Total i10 Index Rankings
World Rank
830,024
Country Rank
884
Institution Rank : 10
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Alexander Iliev|Alexander Iliev iliev](/pictures/13/4482198.jpg)
Artificial Intelligence
Smart Systems
Emotion Recognition
Digital Signal Processing
Audio
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
4
0.308
* Total i10 Index Rankings
World Rank
830,936
Country Rank
887
Institution Rank : 11
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Ju İvanova](/pictures/f8/5539249.jpg)
algologia
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
3
0.231
* Total i10 Index Rankings
World Rank
831,748
Country Rank
891
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Ventzeslav Valev](/pictures/8a/4484969.jpg)
pattern recognition
machine learning
computer vision
data mining
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
0
0.000
* Total i10 Index Rankings
World Rank
850,964
Country Rank
903
Institution Rank : 13
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Filip Ublekov](https://cdn.adscientificindex.com/pictures/0e/5666728.jpg)
Biopolymers
Nanocomposites
Fuel cells
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
9
0.750
* Total i10 Index Rankings
World Rank
856,204
Country Rank
916
Institution Rank : 14
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Radoslav Yoshinov](/user/assets/images/profile/no-profile-photo.png)
Education
Computer Science
Medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
8
0.667
* Total i10 Index Rankings
World Rank
865,028
Country Rank
942
Institution Rank : 15
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Daniella Ivanova](/user/assets/images/profile/no-profile-photo.png)
Botany
Taxonomy and Evolution of Higher Plants
Biosystematics
Chorology
Cytotaxonomy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
2
0.167
* Total i10 Index Rankings
World Rank
865,205
Country Rank
944
Institution Rank : 16
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Vesselin Mintchev](https://cdn.adscientificindex.com/pictures/ff/5714683.jpg)
International migration
Corporate governance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
2
0.167
* Total i10 Index Rankings
World Rank
865,421
Country Rank
947
Institution Rank : 17
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Michaela B Beshkova](/user/assets/images/profile/no-profile-photo.png)
Biology phytoplankton algae
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
1
0.083
* Total i10 Index Rankings
World Rank
865,512
Country Rank
948
Institution Rank : 18
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Snezhana Bakalova](/user/assets/images/profile/no-profile-photo.png)
Computational Chemistry
Stereoselective reactions
Electronic Spectroscopy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
1
0.083
* Total i10 Index Rankings
World Rank
880,986
Country Rank
954
Institution Rank : 19
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Venelin Todorov](/pictures/21/5453076.jpg)
monte carlo methods
numerical and applied analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
* Total i10 Index Rankings
World Rank
885,442
Country Rank
961
Institution Rank : 20
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Velin Andonov](/pictures/32/5200704.jpg)
Mathematical modeling
Modeling of telecommunication systems
Generalized nets
Intuitionistic fuzzy sets
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
9
0.818
* Total i10 Index Rankings
World Rank
898,925
Country Rank
995
Institution Rank : 21
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Strachimir Cht Mavrodiev](/pictures/f9/4484781.jpg)
high energy particle physics
nuclear physics
astrophysics
geophysics
environment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
4
0.364
* Total i10 Index Rankings
World Rank
901,747
Country Rank
1,009
Institution Rank : 22
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Petko Kiriazov](/pictures/07/4484337.jpg)
Dynamics and Optimization of Controlled Mechanical Systems: Robotic Manipulators
Mobile Robots
and Mechanical Structures with Active Vibration Control
Control and Rehabilitation of Human Motion
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
0
0.000
* Total i10 Index Rankings
World Rank
928,700
Country Rank
1,033
Institution Rank : 23
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Boyan Obreshkov](/user/assets/images/profile/no-profile-photo.png)
Atomic Molecular and Optical physics
Materials Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
7
0.700
* Total i10 Index Rankings
World Rank
938,351
Country Rank
1,055
Institution Rank : 24
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Valeria Gancheva](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
3
0.300
* Total i10 Index Rankings
World Rank
958,650
Country Rank
1,081
Institution Rank : 25
![](https://cdn.adscientificindex.com/logos/28324.png)
![Bulgaria](/flags/bg.png)
![Borislav Spassov](/pictures/c5/4500879.jpg)
Cosmology
Blazars
Cataclysmic Variables
Symbiotic Novae
Flare Stars
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
8
0.889
* Total i10 Index Rankings
World Ranking
426,945
Country Ranking
310
Institution Ranking
1
Ilian Kh. Iliev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
33
4
0.121
![](https://cdn.adscientificindex.com/logos/28324.png)
Astronomy
Astrophysics
Stellar Atmospheres
Binary Stars
Stellar Spectra
* Total i10 Index Rankings
World Ranking
475,033
Country Ranking
367
Institution Ranking
2
Stoyanka Peneva
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
19
0.655
* Total i10 Index Rankings
World Ranking
526,175
Country Ranking
441
Institution Ranking
3
Daniela Kirilova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
2
0.077
![](https://cdn.adscientificindex.com/logos/28324.png)
cosmology
astroparticle physics
neutrino physics
theoretical physics
* Total i10 Index Rankings
World Ranking
582,919
Country Ranking
509
Institution Ranking
4
Kamen Kozarev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
21
0.955
* Total i10 Index Rankings
World Ranking
633,620
Country Ranking
584
Institution Ranking
5
Antoaneta Antonova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
14
0.700
* Total i10 Index Rankings
World Ranking
739,452
Country Ranking
748
Institution Ranking
6
Vesselin Sinigersky
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
6
0.375
* Total i10 Index Rankings
World Ranking
813,759
Country Ranking
858
Institution Ranking
7
Rositsa Miteva
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
* Total i10 Index Rankings
World Ranking
822,127
Country Ranking
868
Institution Ranking
8
Daniela Dzhonova-Atanasova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
9
0.692
![](https://cdn.adscientificindex.com/logos/28324.png)
Heat and Mass Transfer Processes
Fluid Dynamics
Energy Efficiency in Chemical Engineering and Renewable Energy Resources
* Total i10 Index Rankings
World Ranking
827,824
Country Ranking
880
Institution Ranking
9
Tzvetan Ostromsky
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
6
0.462
* Total i10 Index Rankings
World Ranking
830,024
Country Ranking
884
Institution Ranking
10
Alexander Iliev|Alexander Iliev iliev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
4
0.308
![](https://cdn.adscientificindex.com/logos/28324.png)
Artificial Intelligence
Smart Systems
Emotion Recognition
Digital Signal Processing
Audio
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* Total i10 Index Rankings
World Ranking
830,936
Country Ranking
887
Institution Ranking
11
Ju İvanova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
3
0.231
* Total i10 Index Rankings
World Ranking
831,748
Country Ranking
891
Institution Ranking
12
Ventzeslav Valev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
0
0.000
![](https://cdn.adscientificindex.com/logos/28324.png)
pattern recognition
machine learning
computer vision
data mining
* Total i10 Index Rankings
World Ranking
850,964
Country Ranking
903
Institution Ranking
13
Filip Ublekov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
9
0.750
* Total i10 Index Rankings
World Ranking
856,204
Country Ranking
916
Institution Ranking
14
Radoslav Yoshinov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
8
0.667
![](https://cdn.adscientificindex.com/logos/28324.png)
Education
Computer Science
Medicine
* Total i10 Index Rankings
World Ranking
865,028
Country Ranking
942
Institution Ranking
15
Daniella Ivanova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
2
0.167
![](https://cdn.adscientificindex.com/logos/28324.png)
Botany
Taxonomy and Evolution of Higher Plants
Biosystematics
Chorology
Cytotaxonomy
* Total i10 Index Rankings
World Ranking
865,205
Country Ranking
944
Institution Ranking
16
Vesselin Mintchev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
2
0.167
![](https://cdn.adscientificindex.com/logos/28324.png)
International migration
Corporate governance
* Total i10 Index Rankings
World Ranking
865,421
Country Ranking
947
Institution Ranking
17
Michaela B Beshkova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
1
0.083
* Total i10 Index Rankings
World Ranking
865,512
Country Ranking
948
Institution Ranking
18
Snezhana Bakalova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
1
0.083
![](https://cdn.adscientificindex.com/logos/28324.png)
Computational Chemistry
Stereoselective reactions
Electronic Spectroscopy
* Total i10 Index Rankings
World Ranking
880,986
Country Ranking
954
Institution Ranking
19
Venelin Todorov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
* Total i10 Index Rankings
World Ranking
885,442
Country Ranking
961
Institution Ranking
20
Velin Andonov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
9
0.818
![](https://cdn.adscientificindex.com/logos/28324.png)
Mathematical modeling
Modeling of telecommunication systems
Generalized nets
Intuitionistic fuzzy sets
* Total i10 Index Rankings
World Ranking
898,925
Country Ranking
995
Institution Ranking
21
Strachimir Cht Mavrodiev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
4
0.364
![](https://cdn.adscientificindex.com/logos/28324.png)
high energy particle physics
nuclear physics
astrophysics
geophysics
environment
* Total i10 Index Rankings
World Ranking
901,747
Country Ranking
1,009
Institution Ranking
22
Petko Kiriazov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
0
0.000
![](https://cdn.adscientificindex.com/logos/28324.png)
Dynamics and Optimization of Controlled Mechanical Systems: Robotic Manipulators
Mobile Robots
and Mechanical Structures with Active Vibration Control
Control and Rehabilitation of Human Motion
* Total i10 Index Rankings
World Ranking
928,700
Country Ranking
1,033
Institution Ranking
23
Boyan Obreshkov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
7
0.700
* Total i10 Index Rankings
World Ranking
938,351
Country Ranking
1,055
Institution Ranking
24
Valeria Gancheva
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
3
0.300
* Total i10 Index Rankings
World Ranking
958,650
Country Ranking
1,081
Institution Ranking
25
Borislav Spassov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
8
0.889
![](https://cdn.adscientificindex.com/logos/28324.png)
Cosmology
Blazars
Cataclysmic Variables
Symbiotic Novae
Flare Stars