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Science in Bulgaria

Bulgaria ranks #77 of 189 countries on research quality in 2022-now (#78 all time), with 36k research works and 4.8% of them in the world's top 10%.

World rank, 2022-now
#77
of 189 · #78 all time
Works, 2022-now
36k
▲ 22% vs 2018-21
Citations
1.6M
9.6 per fractional work, all time
Top-10% rate
4.8%
all institutions 10.0%
vs its own fields
0.52×
1.00× is exactly expected
In the world top 100
0
0 in the top 1,000
Open access
44%
world 40%
International
24%
world 18%
Bulgaria

What is Bulgaria strongest at in science?

On research quality in 2022-now, Bulgaria ranks highest in Arts and Humanities (#57 of 103), Biochemistry, Genetics and Molecular Biology (#60 of 105) and Neuroscience (#41 of 71). Relative to its size it is most specialised in General Energy, Tourism, Leisure and Hospitality Management and Numerical Analysis.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Arts and HumanitiesField #57 of 103 6.0%1,039 #68 Institutions
Biochemistry, Genetics and Molecular BiologyField #60 of 105 5.2%1,617 #65 Institutions
NeuroscienceField #41 of 71 5.2%435 #38 Institutions
MedicineField #94 of 152 4.8%5,889 #96 Institutions
EngineeringField #83 of 131 3.4%6,202 #68 Institutions
Agricultural and Biological SciencesField #79 of 124 5.9%2,543 #88 Institutions
Computer ScienceField #83 of 128 4.3%3,146 #70 Institutions
Materials ScienceField #58 of 87 3.7%1,140 #55 Institutions
MathematicsField #54 of 80 7.4%722 #50 Institutions
Molecular BiologySubfield #57 of 84 5.0%884 #59 Institutions
SurgerySubfield #59 of 86 4.9%703 #71 Institutions
Economics, Econometrics and FinanceField #75 of 107 6.1%926 #77 Institutions

Where its research is concentrated

Location quotient: how much more (or less) of each node it does than its size predicts. Drawn around 1×, where "twice the world share" and "half of it" are the same distance apart in opposite directions. A volume reading, which on a country axis is largely population and industrial structure.

  1. General EnergySubfield · 51.2 works · #31 of 167 active here4.6×
  2. Tourism, Leisure and Hospitality ManagementSubfield · 38.5 works · #35 of 165 active here4.1×
  3. Numerical AnalysisSubfield · 121.1 works · #36 of 173 active here3.5×
  4. AnatomySubfield · 30.5 works · #27 of 159 active here3.1×
  5. ClassicsSubfield · 73.4 works · #29 of 153 active here3.0×
  6. Nuclear Energy and EngineeringSubfield · 8.2 works · #30 of 121 active here3.0×
  7. General DentistrySubfield · 50.2 works · #36 of 177 active here2.8×
  8. General Materials ScienceSubfield · 48.2 works · #31 of 155 active here2.7×
← less than its size predicts1×more →

The whole field profile

All 26 fields at once. A specialist and a generalist produce the same ranked list and a completely different shape.

Agricultural and Biological Sciences: 1.54× its world share, 3,002 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.86× its world share, 1,883 worksBiochemistry, Geneti…Immunology and Microbiology: 0.94× its world share, 389 worksImmunology and Micro…Neuroscience: 0.78× its world share, 522 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.26× its world share, 182 worksPharmacology, Toxico…Chemical Engineering: 0.93× its world share, 134 worksChemical EngineeringChemistry: 1.10× its world share, 710 worksChemistryComputer Science: 1.10× its world share, 3,529 worksComputer ScienceEarth and Planetary Sciences: 1.44× its world share, 927 worksEarth and Planetary …Energy: 1.24× its world share, 470 worksEnergyEngineering: 1.12× its world share, 6,919 worksEngineeringEnvironmental Science: 1.10× its world share, 2,238 worksEnvironmental ScienceMaterials Science: 0.92× its world share, 1,325 worksMaterials ScienceMathematics: 1.70× its world share, 824 worksMathematicsPhysics and Astronomy: 1.01× its world share, 927 worksPhysics and AstronomyDentistry: 2.32× its world share, 464 worksDentistryHealth Professions: 0.69× its world share, 752 worksHealth ProfessionsMedicine: 0.85× its world share, 6,747 worksMedicineNursing: 1.00× its world share, 201 worksNursingVeterinary: 1.47× its world share, 82 worksVeterinaryArts and Humanities: 1.05× its world share, 1,242 worksArts and HumanitiesBusiness, Management and Accounting: 1.05× its world share, 1,391 worksBusiness, Management…Decision Sciences: 1.19× its world share, 473 worksDecision SciencesEconomics, Econometrics and Finance: 1.19× its world share, 1,043 worksEconomics, Econometr…Psychology: 0.69× its world share, 865 worksPsychologySocial Sciences: 0.74× its world share, 3,866 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Dentistry, 2.3×. Every wedge is a field page.

All 26 fields, with their numbers
  1. Dentistry2.32×464 works
  2. Mathematics1.70×824 works
  3. Agricultural and Biological Sciences1.54×3,002 works
  4. Veterinary1.47×82 works
  5. Earth and Planetary Sciences1.44×927 works
  6. Pharmacology, Toxicology and Pharmaceutics1.26×182 works
  7. Energy1.24×470 works
  8. Decision Sciences1.19×473 works
  9. Economics, Econometrics and Finance1.19×1,043 works
  10. Engineering1.12×6,919 works
  11. Chemistry1.10×710 works
  12. Computer Science1.10×3,529 works
  13. Environmental Science1.10×2,238 works
  14. Arts and Humanities1.05×1,242 works
  15. Business, Management and Accounting1.05×1,391 works
  16. Physics and Astronomy1.01×927 works
  17. Nursing1.00×201 works
  18. Immunology and Microbiology0.94×389 works
  19. Chemical Engineering0.93×134 works
  20. Materials Science0.92×1,325 works
  21. Biochemistry, Genetics and Molecular Biology0.86×1,883 works
  22. Medicine0.85×6,747 works
  23. Neuroscience0.78×522 works
  24. Social Sciences0.74×3,866 works
  25. Health Professions0.69×752 works
  26. Psychology0.69×865 works

Which fields of science does Bulgaria work in?

In 2022-now, 44% of research in Bulgaria is in Physical Sciences, 22% in Social Sciences. Its largest fields are Engineering (17%), Medicine (16%), Social Sciences (9%).

Physical Sciences: 18k fractional works · 43.8% of its workEngineering: 6,919 fractional works · 16.8% of its workElectrical and Electronic Engineering: 1,718 fractional works · 4.2% of its workMechanical Engineering: 855 fractional works · 2.1% of its workBiomedical Engineering: 736 fractional works · 1.8% of its workControl and Systems Engineering: 705 fractional works · 1.7% of its workIndustrial and Manufacturing Engineering: 465 fractional works · 1.1% of its workAerospace Engineering: 455 fractional works · 1.1% of its workCivil and Structural Engineering: 357 fractional works · 0.9% of its workMechanics of Materials: 341 fractional works · 0.8% of its workBuilding and Construction: 305 fractional works · 0.7% of its workAutomotive Engineering: 297 fractional works · 0.7% of its workComputational Mechanics: 191 fractional works · 0.5% of its workOcean Engineering: 168 fractional works · 0.4% of its workMedia Technology: 160 fractional works · 0.4% of its workSafety, Risk, Reliability and Quality: 142 fractional works · 0.3% of its workComputer Science: 3,529 fractional works · 8.6% of its workArtificial Intelligence: 1,096 fractional works · 2.7% of its workInformation Systems: 853 fractional works · 2.1% of its workComputer Networks and Communications: 493 fractional works · 1.2% of its workComputer Vision and Pattern Recognition: 362 fractional works · 0.9% of its workComputational Theory and Mathematics: 239 fractional works · 0.6% of its workComputer Science Applications: 162 fractional works · 0.4% of its workSignal Processing: 105 fractional works · 0.3% of its workSmaller subfields together: 219 fractional works · 0.5% of its workEnvironmental Science: 2,238 fractional works · 5.4% of its workGlobal and Planetary Change: 428 fractional works · 1.0% of its workEcology: 409 fractional works · 1.0% of its workManagement, Monitoring, Policy and Law: 310 fractional works · 0.8% of its workEnvironmental Engineering: 285 fractional works · 0.7% of its workHealth, Toxicology and Mutagenesis: 167 fractional works · 0.4% of its workWater Science and Technology: 158 fractional works · 0.4% of its workPollution: 145 fractional works · 0.4% of its workEnvironmental Chemistry: 108 fractional works · 0.3% of its workIndustrial and Manufacturing Engineering: 96 fractional works · 0.2% of its workNature and Landscape Conservation: 84 fractional works · 0.2% of its workSmaller subfields together: 49 fractional works · 0.1% of its workMaterials Science: 1,325 fractional works · 3.2% of its workMaterials Chemistry: 696 fractional works · 1.7% of its workBiomaterials: 217 fractional works · 0.5% of its workElectronic, Optical and Magnetic Materials: 147 fractional works · 0.4% of its workPolymers and Plastics: 137 fractional works · 0.3% of its workSmaller subfields together: 128 fractional works · 0.3% of its workPhysics and Astronomy: 927 fractional works · 2.3% of its workAstronomy and Astrophysics: 266 fractional works · 0.6% of its workAtomic and Molecular Physics, and Optics: 240 fractional works · 0.6% of its workStatistical and Nonlinear Physics: 202 fractional works · 0.5% of its workNuclear and High Energy Physics: 109 fractional works · 0.3% of its workSmaller subfields together: 111 fractional works · 0.3% of its workEarth and Planetary Sciences: 927 fractional works · 2.3% of its workOceanography: 239 fractional works · 0.6% of its workGeophysics: 170 fractional works · 0.4% of its workAtmospheric Science: 168 fractional works · 0.4% of its workPaleontology: 124 fractional works · 0.3% of its workSmaller subfields together: 227 fractional works · 0.6% of its workMathematics: 824 fractional works · 2.0% of its workApplied Mathematics: 173 fractional works · 0.4% of its workNumerical Analysis: 121 fractional works · 0.3% of its workModeling and Simulation: 118 fractional works · 0.3% of its workMathematical Physics: 115 fractional works · 0.3% of its workGeometry and Topology: 111 fractional works · 0.3% of its workSmaller subfields together: 185 fractional works · 0.4% of its workChemistry: 710 fractional works · 1.7% of its workOrganic Chemistry: 336 fractional works · 0.8% of its workAnalytical Chemistry: 117 fractional works · 0.3% of its workInorganic Chemistry: 94 fractional works · 0.2% of its workSpectroscopy: 84 fractional works · 0.2% of its workSmaller subfields together: 79 fractional works · 0.2% of its workEnergy: 470 fractional works · 1.1% of its workRenewable Energy, Sustainability and the Environment: 300 fractional works · 0.7% of its workEnergy Engineering and Power Technology: 107 fractional works · 0.3% of its workSmaller subfields together: 63 fractional works · 0.2% of its workChemical Engineering: 134 fractional works · 0.3% of its workSocial Sciences: 8,880 fractional works · 21.6% of its workSocial Sciences: 3,867 fractional works · 9.4% of its workSociology and Political Science: 1,189 fractional works · 2.9% of its workPolitical Science and International Relations: 674 fractional works · 1.6% of its workEducation: 572 fractional works · 1.4% of its workTransportation: 194 fractional works · 0.5% of its workCultural Studies: 193 fractional works · 0.5% of its workDemography: 140 fractional works · 0.3% of its workLaw: 113 fractional works · 0.3% of its workCommunication: 101 fractional works · 0.2% of its workSafety Research: 101 fractional works · 0.2% of its workUrban Studies: 95 fractional works · 0.2% of its workAnthropology: 94 fractional works · 0.2% of its workSmaller subfields together: 400 fractional works · 1.0% of its workBusiness, Management and Accounting: 1,391 fractional works · 3.4% of its workStrategy and Management: 401 fractional works · 1.0% of its workManagement Information Systems: 242 fractional works · 0.6% of its workManagement of Technology and Innovation: 228 fractional works · 0.6% of its workMarketing: 164 fractional works · 0.4% of its workOrganizational Behavior and Human Resource Management: 146 fractional works · 0.4% of its workAccounting: 127 fractional works · 0.3% of its workSmaller subfields together: 84 fractional works · 0.2% of its workArts and Humanities: 1,241 fractional works · 3.0% of its workLanguage and Linguistics: 271 fractional works · 0.7% of its workLiterature and Literary Theory: 224 fractional works · 0.5% of its workArcheology: 218 fractional works · 0.5% of its workPhilosophy: 100 fractional works · 0.2% of its workHistory: 98 fractional works · 0.2% of its workSmaller subfields together: 330 fractional works · 0.8% of its workEconomics, Econometrics and Finance: 1,043 fractional works · 2.5% of its workEconomics and Econometrics: 736 fractional works · 1.8% of its workFinance: 157 fractional works · 0.4% of its workGeneral Economics, Econometrics and Finance: 150 fractional works · 0.4% of its workPsychology: 865 fractional works · 2.1% of its workSocial Psychology: 273 fractional works · 0.7% of its workDevelopmental and Educational Psychology: 201 fractional works · 0.5% of its workClinical Psychology: 197 fractional works · 0.5% of its workExperimental and Cognitive Psychology: 151 fractional works · 0.4% of its workSmaller subfields together: 43 fractional works · 0.1% of its workDecision Sciences: 473 fractional works · 1.2% of its workManagement Science and Operations Research: 293 fractional works · 0.7% of its workInformation Systems and Management: 97 fractional works · 0.2% of its workSmaller subfields together: 84 fractional works · 0.2% of its workHealth Sciences: 8,246 fractional works · 20.1% of its workMedicine: 6,747 fractional works · 16.4% of its workSurgery: 811 fractional works · 2.0% of its workPulmonary and Respiratory Medicine: 541 fractional works · 1.3% of its workEpidemiology: 502 fractional works · 1.2% of its workCardiology and Cardiovascular Medicine: 376 fractional works · 0.9% of its workPublic Health, Environmental and Occupational Health: 365 fractional works · 0.9% of its workOncology: 316 fractional works · 0.8% of its workPhysiology: 310 fractional works · 0.8% of its workRadiology, Nuclear Medicine and Imaging: 307 fractional works · 0.7% of its workInfectious Diseases: 280 fractional works · 0.7% of its workRheumatology: 217 fractional works · 0.5% of its workEndocrinology, Diabetes and Metabolism: 199 fractional works · 0.5% of its workNeurology: 195 fractional works · 0.5% of its workPharmacology: 195 fractional works · 0.5% of its workPathology and Forensic Medicine: 188 fractional works · 0.5% of its workPediatrics, Perinatology and Child Health: 170 fractional works · 0.4% of its workPsychiatry and Mental health: 145 fractional works · 0.4% of its workComplementary and alternative medicine: 131 fractional works · 0.3% of its workDermatology: 124 fractional works · 0.3% of its workBiochemistry: 122 fractional works · 0.3% of its workOrthopedics and Sports Medicine: 113 fractional works · 0.3% of its workOphthalmology: 110 fractional works · 0.3% of its workReproductive Medicine: 102 fractional works · 0.2% of its workObstetrics and Gynecology: 102 fractional works · 0.2% of its workHematology: 94 fractional works · 0.2% of its workSmaller subfields together: 732 fractional works · 1.8% of its workHealth Professions: 752 fractional works · 1.8% of its workGeneral Health Professions: 294 fractional works · 0.7% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 121 fractional works · 0.3% of its workSmaller subfields together: 338 fractional works · 0.8% of its workDentistry: 463 fractional works · 1.1% of its workOral Surgery: 192 fractional works · 0.5% of its workOrthodontics: 119 fractional works · 0.3% of its workPeriodontics: 102 fractional works · 0.2% of its workSmaller subfields together: 50 fractional works · 0.1% of its workNursing: 201 fractional works · 0.5% of its workNutrition and Dietetics: 190 fractional works · 0.5% of its workSmaller subfields together: 11 fractional works · 0.0% of its workVeterinary: 82 fractional works · 0.2% of its workLife Sciences: 5,978 fractional works · 14.5% of its workAgricultural and Biological Sciences: 3,002 fractional works · 7.3% of its workPlant Science: 1,060 fractional works · 2.6% of its workFood Science: 529 fractional works · 1.3% of its workEcology, Evolution, Behavior and Systematics: 429 fractional works · 1.0% of its workInsect Science: 229 fractional works · 0.6% of its workGeneral Agricultural and Biological Sciences: 220 fractional works · 0.5% of its workAnimal Science and Zoology: 159 fractional works · 0.4% of its workAgronomy and Crop Science: 138 fractional works · 0.3% of its workSoil Science: 122 fractional works · 0.3% of its workAquatic Science: 94 fractional works · 0.2% of its workSmaller subfields together: 23 fractional works · 0.1% of its workBiochemistry, Genetics and Molecular Biology: 1,883 fractional works · 4.6% of its workMolecular Biology: 1,030 fractional works · 2.5% of its workGenetics: 320 fractional works · 0.8% of its workCancer Research: 104 fractional works · 0.3% of its workCell Biology: 99 fractional works · 0.2% of its workSmaller subfields together: 329 fractional works · 0.8% of its workNeuroscience: 522 fractional works · 1.3% of its workCognitive Neuroscience: 215 fractional works · 0.5% of its workCellular and Molecular Neuroscience: 111 fractional works · 0.3% of its workSmaller subfields together: 196 fractional works · 0.5% of its workImmunology and Microbiology: 389 fractional works · 0.9% of its workImmunology: 233 fractional works · 0.6% of its workSmaller subfields together: 156 fractional works · 0.4% of its workPharmacology, Toxicology and Pharmaceutics: 182 fractional works · 0.4% of its workPharmacology: 88 fractional works · 0.2% of its workSmaller subfields together: 94 fractional works · 0.2% of its workALL ITS WORKBulgaria41kfractional works, 2022-now
Life Sciences15%Physical Sciences44%Health Sciences20%Social Sciences22%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this country does than the world.

Its 4 domains and 26 fields, with their numbers
    1. Engineering6,91916.8%
    2. Computer Science3,5298.6%
    3. Environmental Science2,2385.4%
    4. Materials Science1,3253.2%
    5. Physics and Astronomy9272.3%
    6. Earth and Planetary Sciences9272.3%
    7. Mathematics8242.0%
    8. Chemistry7101.7%
    9. Energy4701.1%
    10. Chemical Engineering1340.3%
  2. Social Sciences8,88021.6%
    1. Social Sciences3,8679.4%
    2. Business, Management and Accounting1,3913.4%
    3. Arts and Humanities1,2413.0%
    4. Economics, Econometrics and Finance1,0432.5%
    5. Psychology8652.1%
    6. Decision Sciences4731.2%
  3. Health Sciences8,24620.1%
    1. Medicine6,74716.4%
    2. Health Professions7521.8%
    3. Dentistry4631.1%
    4. Nursing2010.5%
    5. Veterinary820.2%
  4. Life Sciences5,97814.5%
    1. Agricultural and Biological Sciences3,0027.3%
    2. Biochemistry, Genetics and Molecular Biology1,8834.6%
    3. Neuroscience5221.3%
    4. Immunology and Microbiology3890.9%
    5. Pharmacology, Toxicology and Pharmaceutics1820.4%
All of science, and how each field's share has moved since 1950: the Science domain explorer

Which keywords describe research in Bulgaria?

By fractional works in 2022-now, weighted toward what it does more of than the world: Climate Change, Renewable Energy, Sustainable Development, Sustainability, Machine Learning, Artificial Intelligence, Epidemiology and Energy Efficiency.

▲ more of its work than of the world's◆ about the world's share▼ less than the world's

Size is fractional works in 2022-now in the topics tagged with each word; colour is the word's share of this country's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Climate Change1,519▲ 1.36×126 topics
  2. Machine Learning1,477◆ 1.08×97 topics
  3. Epidemiology1,397▼ 0.85×138 topics
  4. Sustainability1,336▲ 1.33×130 topics
  5. Sustainable Development1,218▲ 1.89×109 topics
  6. Renewable Energy1,186▲ 1.99×60 topics
  7. Deep Learning1,146▼ 0.81×85 topics
  8. Artificial Intelligence951▲ 1.62×65 topics
  9. Environmental Impact804◆ 1.15×74 topics
  10. Oxidative Stress777◆ 1.15×62 topics
  11. Energy Efficiency769▲ 2.0×46 topics
  12. Globalization741◆ 0.92×164 topics
  13. Big Data727▲ 1.85×35 topics
  14. Inflammation726▼ 0.83×83 topics
  15. Neural Networks716◆ 1.13×42 topics
  16. Educational Technology621▲ 1.28×46 topics
  17. Innovation595▲ 1.40×85 topics
  18. Remote Sensing569◆ 1.13×41 topics
  19. Economic Growth567▲ 1.69×36 topics
  20. Internet of Things566▲ 1.61×31 topics
  21. Biodiversity544▲ 1.74×38 topics
  22. Antioxidant505▲ 1.79×51 topics
  23. Supply Chain Management470▲ 1.27×27 topics
  24. E-Learning449◆ 1.13×25 topics
  25. Cyber-Physical Systems444▲ 4.1×9 topics
  26. Invasive Species444▲ 2.5×21 topics
  27. Security411▲ 1.50×31 topics
  28. Antioxidant Activity407▲ 1.59×32 topics
  29. Digital Transformation402▲ 1.81×32 topics
  30. Environmental Management393▲ 2.4×22 topics
  31. Smart Grid350▲ 2.4×10 topics
  32. Optimization331▲ 1.79×26 topics
  33. Biogeography319▲ 2.8×20 topics
  34. Power Electronics304▲ 2.3×8 topics
  35. Phylogeny238▲ 3.5×17 topics
  36. Taxonomy224▲ 3.8×15 topics
  37. Mediterranean219▲ 6.0×6 topics
  38. Black Sea165▲ 11×2 topics
  39. Caspian Sea160▲ 14×1 topic
  40. paleoceanography160▲ 14×1 topic

Which research topics does Bulgaria publish the most in?

Its largest topics in 2022-now are Marine and environmental studies, Diverse Aspects of Tourism Research, Intuitionistic Fuzzy Systems Applications.

Marine and environmental…160Marine and environmental studies: 160 fractional worksDiverse Aspects of Touri…121Diverse Aspects of Tourism Research: 121 fractional worksIntuitionistic Fuzzy Systems Applications: 108 fractional worksBusiness and Economic Development: 106 fractional worksDigital Transformation in Industry: 101 fractional worksPhytochemicals and Antio…99Phytochemicals and Antioxidant Activities: 99 fractional worksEconomic and Business Development Strategies: 99 fractional worksBig Data and Business Intelligence: 96 fractional worksEssential Oils and Antim…95Essential Oils and Antimicrobial Activity: 95 fractional worksEducational Innovations and Challenges: 88 fractional worksMilitary Technology and Strategies: 88 fractional worksSmart Grid Energy Manage…88Smart Grid Energy Management: 88 fractional works
OceanographySociology and Political ScienceArtificial IntelligenceManagement, Monitoring, Policy and Law8 others

Area is fractional works in 2022-now; colour is the subfield each topic belongs to. Every tile is a topic page.

  1. 1 Marine and environmental studies Oceanography 160 works
  2. 2 Diverse Aspects of Tourism Research Sociology and Political Science 121 works
  3. 3 Intuitionistic Fuzzy Systems Applications Artificial Intelligence 108 works
  4. 4 Business and Economic Development Management, Monitoring, Policy and Law 106 works
  5. 5 Digital Transformation in Industry Industrial and Manufacturing Engineering 101 works
  6. 6 Phytochemicals and Antioxidant Activities Biochemistry 99 works
  7. 7 Economic and Business Development Strategies Economics and Econometrics 99 works
  8. 8 Big Data and Business Intelligence Management Information Systems 96 works
  9. 9 Essential Oils and Antimicrobial Activity Food Science 95 works
  10. 10 Educational Innovations and Challenges Information Systems 88 works
  11. 11 Military Technology and Strategies Aerospace Engineering 88 works
  12. 12 Smart Grid Energy Management Electrical and Electronic Engineering 88 works

Which universities in Bulgaria lead research?

Bulgarian Academy of Sciences, College of Tourism and Angel Kanchev University of Ruse rank highest in Bulgaria on research quality in 2022-now.

0%5%10%mean 4.99333%fractional works (log) →share in the world top 10% →College of TourismSofia University "St…Bulgarian Academy of…Angel Kanchev Univer…
above the meannear itbelow it

One dot per institution in the list below. The upper left is the interesting corner.

  1. 1Bulgarian Academy of SciencesGovernment institution · Sofia · #1,689 worldwide5.0% top 10% · 8.8k works
  2. 2College of TourismUniversity · Blagoevgrad · #2,901 worldwide8.7% top 10% · 779 works
  3. 3Angel Kanchev University of RuseUniversity · Rousse · #4,756 worldwide4.0% top 10% · 1.1k works
  4. 4Sofia University "St. Kliment Ohridski"University · Sofia · #4,889 worldwide5.3% top 10% · 2.3k works
  5. 5New Bulgarian UniversityUniversity · Sofia · #5,210 worldwide3.6% top 10% · 500 works
  6. 6South-West University "Neofit Rilski"University · Blagoevgrad · #5,589 worldwide4.9% top 10% · 486 works
  7. 7University of National and World EconomyUniversity · Sofia · #6,253 worldwide4.2% top 10% · 609 works
  8. 8Medical University PlovdivUniversity · Plovdiv · #6,829 worldwide8.3% top 10% · 1.2k works
  9. 9University of Food TechnologiesUniversity · Plovdiv · #7,166 worldwide4.5% top 10% · 468 works
  10. 10University of Economics VarnaUniversity · Varna · #7,638 worldwide4.5% top 10% · 329 works
  11. 11Shumen UniversityUniversity · Shumen · #7,843 worldwide3.0% top 10% · 412 works
  12. 12D. A. Tsenov Academy of EconomicsUniversity · Sistov · #8,319 worldwide7.6% top 10% · 219 works
  13. 13Prof. Assen Zlatarov UniversityUniversity · Burgas · #8,436 worldwide3.0% top 10% · 328 works
  14. 14St. Cyril and St. Methodius University of Veliko TarnovoUniversity · Veliko Tarnovo · #8,519 worldwide4.8% top 10% · 344 works
  15. 15Nikola Vaptsarov Naval AcademyUniversity · Varna · #8,547 worldwide3.5% top 10% · 240 works

The track on each row is its top-10% rate; the tick is the average of all institutions, 10.0% (how it is set): teal above it, red below.

All ranked institutions in Bulgaria

Who are the top researchers in Bulgaria?

A. Cimmino, A. Cabrera and L. Litov rank highest among researchers based in Bulgaria.

  1. 1 A. Cimmino #8,111 worldwide 84k citations · 1,049 works
  2. 2 A. Cabrera #11,365 worldwide 33k citations · 472 works
  3. 3 L. Litov #17,576 worldwide 113k citations · 2,193 works
  4. 4 S. Stoykova #20,679 worldwide 47k citations · 461 works
  5. 5 V. Genchev #32,911 worldwide 54k citations · 539 works
  6. 6 George Christoff #46,579 worldwide 2.8k citations · 87 works
  7. 7 N. Zaganidis #46,879 worldwide 14k citations · 201 works
  8. 8 Vesselka L. Duleva #68,655 worldwide 15k citations · 68 works
  9. 9 D. Lomidze #68,921 worldwide 36k citations · 354 works
  10. 10 Tzvetana Katova #75,523 worldwide 17k citations · 49 works
Top researchers in Bulgaria

Which cities in Bulgaria are research hubs?

  1. 1 SofiaBulgaria 121k works

How open and international is Bulgaria's research?

44% of its research is openly available (world: 40%), and 24% is written with international co-authors (world: 18%).

openly available44.4%not open55.6%

World: 40% of research is openly available.

with international co-authors23.8%domestic only76.2%

World: 18% is written across borders.

In 2022-now, 70% of its research is openly available (world 63%) and 22% is written with co-authors abroad (world 22%). Against what its own mix of topics predicts, that is 1.14× the expected open access and 1.00× the expected international share, which puts it #93 of 173 countries on openness.

How has Bulgaria's research grown?

Output in 2022-2025 was 22% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Bulgaria as a percentage of every work published that year, 0.16% in 2024.

still counting0.10%0.20%0.30%Bulgaria0.18% in 202519801990200020102020

Fractional works of Bulgaria over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Over the whole record, 4.9% of its 165k works since 1950 reached the world top 10% for their field and year.

still counting5%10%15%all institutions10.0% in 2025Bulgaria5.8% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 6.4% in 2007.

Which countries have research most like Bulgaria's?

Libya is Bulgaria's closest research twin: of all countries, its research is spread across the fields most like Bulgaria's, with both strong in Dentistry.

  1. 1 LibyaBoth strong in Dentistry, Veterinary, Agricultural and Biological Sciences 0.68 Compare
  2. 2 RomaniaBoth strong in Dentistry, Mathematics, Decision Sciences 0.62 Compare
  3. 3 IraqBoth strong in Dentistry, Mathematics, Agricultural and Biological Sciences 0.62 Compare
  4. 4 YemenBoth strong in Dentistry, Mathematics, Pharmacology, Toxicology and Pharmaceutics 0.55 Compare
  5. 5 SerbiaBoth strong in Mathematics, Agricultural and Biological Sciences, Dentistry 0.54 Compare

Similarity is the correlation of each side's location quotients across every field it publishes in, on a log scale: 1 is the same shape of research, 0 is unrelated. It ignores size. How it is measured.

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Bulgaria on Science Explorer

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Research fields in Bulgaria

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