Research in Sofia
Science Explorer records 162 research institutions in Sofia, Bulgaria. The highest-ranked on research quality in 2022–2025 are Bulgarian Academy of Sciences, Medical University of Sofia and Sofia University "St. Kliment Ohridski".
- Research institutions
- 162 15 of them ranked worldwide
- Research works
- 121k ▲ 53% vs 2013–17
- Top-10% rate, 2022–2025
- 8.3% record average 16.5%
A city carries no overall standing here. The composite score is built for institutions and countries, the units its floors and field normalisation were designed around. An empty rank on this page is a statement about the measure, not about the place.
Which research institutions are in Sofia?
By fractional works over the whole record; world rank on research quality in 2022–2025. Bars are scaled to the largest institution in this city, not to anything off the page.
How concentrated the city is
The same institutions as shares of everything the list accounts for. A city that is one university and a city that is twelve read alike as a table and not at all alike here.
Shares of the rows listed above, not of the whole node.
What is Sofia strongest at in research?
Relative to its size, research in Sofia is most concentrated in General Energy, Numerical Analysis and Classics (5.1× the world share in General Energy).
- General EnergySubfield · 31.4 works5.1×
- Numerical AnalysisSubfield · 87.6 works4.5×
- ClassicsSubfield · 54.7 works4.0×
- Algebra and Number TheorySubfield · 57.1 works3.9×
- Energy Engineering and Power TechnologySubfield · 85.5 works3.5×
- General Materials ScienceSubfield · 32.0 works3.2×
- Geochemistry and PetrologySubfield · 57.2 works2.5×
Location quotient against the world baseline. Inside a single field a city is a meaningful unit, which is why this is where a city is measured at all.
Which keywords describe research in Sofia?
By fractional works in 2022–2025, weighted toward what it does more of than the world: Renewable Energy, Climate Change, Machine Learning, Sustainability, Sustainable Development, Energy Efficiency, Deep Learning and Big Data.
- paleoceanography
- Sedimentation
- Taxonomy
- Phylogeny
- Mediterranean
- Renewable Energy Integration
- Power Electronics
- Security
- Antioxidant
- Mechanical Properties
- Innovation
- Biodiversity
- Nanoparticles
- Big Data
- Remote Sensing
- Artificial Intelligence
- Energy Efficiency
- Epidemiology
- Sustainability
- Machine Learning
- Climate Change
- Renewable Energy
- Deep Learning
- Sustainable Development
- Environmental Impact
- Neural Networks
- Globalization
- Oxidative Stress
- Internet of Things
- Biomedical Applications
- Smart Grid
- Cyber-Physical Systems
- Economic Growth
- Invasive Species
- Optimization
- Biogeography
- Holocene
- Sea Level
- Black Sea
- Caspian Sea
Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this city'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
- Climate Change887▲ 1.45×120 topics
- Machine Learning826◆ 1.11×97 topics
- Renewable Energy753▲ 2.3×58 topics
- Sustainability714▲ 1.29×115 topics
- Deep Learning689◆ 0.88×85 topics
- Epidemiology664▼ 0.74×135 topics
- Sustainable Development589▲ 1.63×97 topics
- Energy Efficiency470▲ 2.2×46 topics
- Environmental Impact455▲ 1.18×70 topics
- Artificial Intelligence451▲ 1.45×63 topics
- Neural Networks436▲ 1.24×42 topics
- Remote Sensing401▲ 1.43×41 topics
- Globalization399◆ 0.89×143 topics
- Big Data399▲ 1.93×32 topics
- Oxidative Stress361◆ 0.97×61 topics
- Nanoparticles314◆ 1.10×44 topics
- Internet of Things311▲ 1.57×31 topics
- Biodiversity284▲ 1.67×37 topics
- Biomedical Applications281◆ 1.04×36 topics
- Innovation278▲ 1.16×73 topics
- Smart Grid267▲ 3.1×10 topics
- Mechanical Properties265▲ 1.20×39 topics
- Cyber-Physical Systems251▲ 4.2×9 topics
- Antioxidant251▲ 1.61×51 topics
- Economic Growth242▲ 1.25×36 topics
- Security238▲ 1.60×29 topics
- Invasive Species234▲ 2.4×21 topics
- Power Electronics222▲ 2.9×8 topics
- Optimization217▲ 2.1×26 topics
- Renewable Energy Integration208▲ 2.7×6 topics
- Biogeography173▲ 2.9×20 topics
- Mediterranean150▲ 7.2×6 topics
- Holocene135▲ 5.1×3 topics
- Phylogeny131▲ 3.8×17 topics
- Sea Level128▲ 5.8×2 topics
- Taxonomy126▲ 4.3×15 topics
- Black Sea115▲ 13×2 topics
- Sedimentation113▲ 8.9×2 topics
- Caspian Sea111▲ 16×1 topic
- paleoceanography111▲ 16×1 topic
What research is done in Sofia?
Area is fractional works; colour is the subfield each topic belongs to.
- 1 Marine and environmental studiesOceanography 111 works
- 2 Microgrid Control and OptimizationControl and Systems Engineering 68 works
- 3 Smart Grid Energy ManagementElectrical and Electronic Engineering 66 works
- 4 Intuitionistic Fuzzy Systems ApplicationsArtificial Intelligence 62 works
- 5 Integrated Energy Systems OptimizationElectrical and Electronic Engineering 58 works
- 6 Digital Transformation in IndustryIndustrial and Manufacturing Engineering 56 works
- 7 Power Systems and Renewable EnergyEnergy Engineering and Power Technology 56 works
- 8 Advanced Battery Technologies ResearchAutomotive Engineering 52 works
- 9 Byzantine Studies and HistoryClassics 50 works
- 10 Big Data and Business IntelligenceManagement Information Systems 49 works
Research output over time
The same series as a ribbon — one cell per year, darker for more.