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University · Sofia · Bulgaria

University of Mining and Geology "Saint Ivan Rilski"

In research, University of Mining and Geology "Saint Ivan Rilski" stands highest in Physical Sciences (#10,649 of 12,888 worldwide) and Engineering (#6,027 of 6,636 worldwide), 2022–2025. Relative to its size it is most specialised in Earth and Planetary Sciences — Earth and Planetary Sciences is 10.2× its share of world research.

mgu.bgROR OpenAlex
World rank, 2022–2025
#21,576
of 28,054 · #24,333 all time
Rank in Bulgaria
#61
of 92
Research works
572
▲ 243% vs 2013–17
Citations
4.1k
7.2 per fractional work
Top-10% rate
4.9%
record average 16.5%
Open access
52%
world 28%

What is University of Mining and Geology "Saint Ivan Rilski" known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #10,649 of 12,888 5.3%149 #13085
EngineeringField #6,027 of 6,636 7.2%63 #10568

Each strip is that field’s whole ranked pool, with the notch where University of Mining and Geology "Saint Ivan Rilski" sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

What does University of Mining and Geology "Saint Ivan Rilski" specialise in?

Where its research is concentrated relative to its size: Earth and Planetary Sciences takes 10.2× the share of its output that it takes of world research.

  1. Earth and Planetary SciencesField · 27.8 works10×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.52× its world share, 4 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.07× its world share, 1 worksBiochemistry, Geneti…Neuroscience: 0.37× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.27× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.03× its world share, 0 worksChemical EngineeringChemistry: 0.20× its world share, 0 worksChemistryComputer Science: 0.86× its world share, 12 worksComputer ScienceEarth and Planetary Sciences: 10.16× its world share, 28 worksEarth and Planetary …Energy: 4.15× its world share, 7 worksEnergyEngineering: 2.40× its world share, 63 worksEngineeringEnvironmental Science: 2.97× its world share, 26 worksEnvironmental ScienceMaterials Science: 0.88× its world share, 5 worksMaterials ScienceMathematics: 0.33× its world share, 1 worksMathematicsPhysics and Astronomy: 1.96× its world share, 8 worksPhysics and AstronomyHealth Professions: 0.35× its world share, 2 worksHealth ProfessionsMedicine: 0.07× its world share, 2 worksMedicineArts and Humanities: 0.57× its world share, 3 worksArts and HumanitiesBusiness, Management and Accounting: 0.80× its world share, 4 worksBusiness, Management…Decision Sciences: 0.86× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.56× its world share, 2 worksEconomics, Econometr…Psychology: 0.06× its world share, 0 worksPsychologySocial Sciences: 0.18× its world share, 4 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 10.2×. Every wedge is a field page.

Who are the top researchers at University of Mining and Geology "Saint Ivan Rilski"?

Ranked on the composite score, Stoyan Groudev and Vasil G. Angelov lead among researchers whose main affiliation is University of Mining and Geology "Saint Ivan Rilski".

  1. 1 Stoyan Groudev Bulgaria · #1,429,135 worldwide 9 citations · 21 works
  2. 2 Vasil G. Angelov Bulgaria · #1,492,679 worldwide 12 citations · 20 works
All ranked researchers at University of Mining and Geology "Saint Ivan Rilski"

Which keywords describe research at University of Mining and Geology "Saint Ivan Rilski"?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Energy Efficiency, Remote Sensing, Renewable Energy, Sustainable Development, Metal Recovery, Environmental Impact, Machine Learning and Circular Economy.

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

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution'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. Renewable Energy14▲ 5.5×18 topics
  2. Energy Efficiency14▲ 8.2×17 topics
  3. Remote Sensing13▲ 6.1×15 topics
  4. Machine Learning12▲ 2.1×15 topics
  5. Sustainable Development11▲ 4.1×13 topics
  6. Sustainability10▲ 2.4×15 topics
  7. Environmental Impact10▲ 3.4×11 topics
  8. Climate Change9▲ 1.90×19 topics
  9. Metal Recovery7▲ 21×3 topics
  10. Circular Economy6▲ 13×3 topics
  11. Lithium-ion Batteries6▲ 8.2×3 topics
  12. Optimization6▲ 7.6×7 topics
  13. Holocene5▲ 26×2 topics
  14. Sea Level5▲ 31×2 topics
  15. Environmental Impacts5▲ 11×5 topics
  16. Hyperspectral Imaging5▲ 9.9×2 topics
  17. Mediterranean5▲ 31×3 topics
  18. Black Sea5▲ 68×1 topic
  19. Sedimentation5▲ 49×2 topics
  20. paleoceanography5▲ 90×1 topic
  21. Support Vector Machines5▲ 8.3×3 topics
  22. Geological Mapping4▲ 31×2 topics
  23. Resource Efficiency4▲ 19×3 topics
  24. Environmental Management4▲ 6.4×5 topics
  25. Geochemistry4▲ 42×3 topics
  26. Strategic Planning4▲ 16×2 topics
  27. Compositional Data Analysis4▲ 35×1 topic
  28. Microbial Communities4▲ 5.5×2 topics
  29. Mineral Prospectivity4▲ 35×1 topic
  30. Rare Earth Elements4▲ 16×3 topics
  31. Rock Mechanics4▲ 24×3 topics
  32. Tectonics4▲ 19×3 topics
  33. Natural Gas4▲ 23×2 topics
  34. Metallurgy4▲ 35×2 topics
  35. Digital Economy4▲ 11×2 topics
  36. Hydrogen Production4▲ 7.5×3 topics
  37. Raman Spectroscopy4▲ 10×3 topics
  38. Thermodynamic Modeling4▲ 18×2 topics
  39. Global Governance3▲ 8.6×2 topics
  40. Bioleaching3▲ 61×1 topic

Which research topics does University of Mining and Geology "Saint Ivan Rilski" publish most on?

By volume in 2022–2025: Marine and environmental studies, Geochemistry and Geologic Mapping, Mining Techniques and Economics and Mineral Processing and Grinding.

Marine and environmental…5Marine and environmental studies: 5 fractional worksGeochemistry and Geologi…4Geochemistry and Geologic Mapping: 4 fractional worksMining Techniques and Economics: 3 fractional worksMineral Processing and Grinding: 3 fractional worksMetal Extraction and Bioleaching: 3 fractional worksIndustrial Engineering and Technologies: 3 fractional worksGeotechnical and Geomechanical Engineering: 3 fractional worksGeological and Geochemic…3Geological and Geochemical Analysis: 3 fractional worksGlobal Energy Security and Policy: 3 fractional worksGeological Formations and Processes Exploration: 3 fractional works
OceanographyArtificial IntelligenceControl and Systems EngineeringMechanical Engineering4 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Marine and environmental studies Oceanography 5 works
  2. 2 Geochemistry and Geologic Mapping Artificial Intelligence 4 works
  3. 3 Mining Techniques and Economics Control and Systems Engineering 3 works
  4. 4 Mineral Processing and Grinding Mechanical Engineering 3 works
  5. 5 Metal Extraction and Bioleaching Biomedical Engineering 3 works
  6. 6 Industrial Engineering and Technologies Mechanical Engineering 3 works
  7. 7 Geotechnical and Geomechanical Engineering Mechanics of Materials 3 works
  8. 8 Geological and Geochemical Analysis Geophysics 3 works
  9. 9 Global Energy Security and Policy General Energy 3 works
  10. 10 Geological Formations and Processes Exploration Geophysics 3 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available51.9%not open48.1%

World: 28% of research is openly available.

with international co-authors16.2%domestic only83.8%

World: 19% is written across borders.

How has University of Mining and Geology "Saint Ivan Rilski"'s research output changed?

Output in 2018–2022 was 243% higher than in 2013–2017.

1990200020102020
grewheldshrank

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

Other research institutions in Sofia

All research institutions in Sofia

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.