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Research facility · Espoo · Finland

Helsinki Institute for Information Technology

In research, Helsinki Institute for Information Technology stands highest in Computer Science (#992 of 7,020 worldwide), Physical Sciences (#4,900 of 21,541 worldwide) and Artificial Intelligence (#948 of 2,981 worldwide), over all time.

hiit.fiROR OpenAlex
World rank, all time
#6,706
of 42,892
Rank in Finland
#31
of 183
Research works
1.7k
▼ 57% vs 2013–17
Citations
61k
36.2 per fractional work
Top-10% rate
25.2%
record average 16.5%
Open access
29%
world 28%

What is Helsinki Institute for Information Technology known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Computer ScienceField #992 of 7,020 32.5%859
Physical SciencesDomain #4,900 of 21,541 30.8%1,260
Artificial IntelligenceSubfield #948 of 2,981 29.7%287
EngineeringField #3,876 of 11,412 27.2%245
Social SciencesDomain #6,070 of 16,945 39.7%230
Computer Networks and CommunicationsSubfield #907 of 1,873 31.7%151
Life SciencesDomain #9,066 of 14,347 26.5%170

Each strip is that field’s whole ranked pool, with the notch where Helsinki Institute for Information Technology 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).

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: 0.74× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.67× its world share, 5 worksBiochemistry, Geneti…Immunology and Microbiology: 0.48× its world share, 0 worksImmunology and Micro…Neuroscience: 0.43× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.99× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.28× its world share, 0 worksChemical EngineeringChemistry: 0.30× its world share, 0 worksChemistryComputer Science: 4.02× its world share, 18 worksComputer ScienceEarth and Planetary Sciences: 5.26× its world share, 5 worksEarth and Planetary …Energy: 0.16× its world share, 0 worksEnergyEngineering: 0.44× its world share, 4 worksEngineeringEnvironmental Science: 3.25× its world share, 9 worksEnvironmental ScienceMaterials Science: 0.16× its world share, 0 worksMaterials ScienceMathematics: 1.35× its world share, 1 worksMathematicsPhysics and Astronomy: 1.17× its world share, 2 worksPhysics and AstronomyDentistry: 0.20× its world share, 0 worksDentistryHealth Professions: 0.17× its world share, 0 worksHealth ProfessionsMedicine: 0.24× its world share, 3 worksMedicineArts and Humanities: 0.17× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.36× its world share, 1 worksBusiness, Management…Decision Sciences: 1.21× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.28× its world share, 0 worksEconomics, Econometr…Psychology: 0.48× its world share, 1 worksPsychologySocial Sciences: 0.66× its world share, 5 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 5.3×. Every wedge is a field page.

Who are the top researchers at Helsinki Institute for Information Technology?

Ranked on the composite score, Erkki Oja, Timo Saari and Teemu Roos lead among researchers whose main affiliation is Helsinki Institute for Information Technology.

  1. 1 Erkki Oja Finland · #5,887 worldwide 1.5k citations · 81 works
  2. 2 Timo Saari Finland · #58,308 worldwide 409 citations · 33 works
  3. 3 Teemu Roos Finland · #64,375 worldwide 248 citations · 46 works
  4. 4 Petri Myllymäki Finland · #138,340 worldwide 285 citations · 48 works
  5. 5 Sourav Bhattacharya Finland · #211,219 worldwide 242 citations · 51 works
  6. 6 M. Tiuri Finland · #263,326 worldwide 127 citations · 30 works
  7. 7 S.J. Ovaska Finland · #295,240 worldwide 333 citations · 96 works
  8. 8 Reijo Sulonen Finland · #303,950 worldwide 85 citations · 26 works
  9. 9 Olli Simula Finland · #320,171 worldwide 165 citations · 36 works
  10. 10 Risto Sarvas Finland · #480,341 worldwide 78 citations · 20 works
All ranked researchers at Helsinki Institute for Information Technology

Which keywords describe research at Helsinki Institute for Information Technology?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Climate Change, Air Quality, Machine Learning, Deep Learning, Atmospheric Aerosols, Black Carbon, Remote Sensing and Semi-Supervised Learning.

▲ 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. Climate Change6▲ 3.8×39 topics
  2. Machine Learning5▲ 2.4×24 topics
  3. Deep Learning4▲ 1.96×17 topics
  4. Air Quality3▲ 29×5 topics
  5. Remote Sensing2▲ 3.5×14 topics
  6. Security2▲ 5.1×6 topics
  7. Atmospheric Aerosols2▲ 56×1 topic
  8. Black Carbon2▲ 56×1 topic
  9. Semi-Supervised Learning2▲ 27×3 topics
  10. Hydrological Cycle2▲ 30×2 topics
  11. Satellite Observations2▲ 29×3 topics
  12. Global Warming2▲ 6.5×9 topics
  13. Particulate Matter2▲ 17×2 topics
  14. Data Mining1▲ 3.4×4 topics
  15. Ecosystem Resilience1▲ 16×4 topics
  16. Health Effects1▲ 4.0×9 topics
  17. Representation Learning1▲ 17×3 topics
  18. Approximation Algorithms1▲ 33×3 topics
  19. Graph Neural Networks1▲ 47×1 topic
  20. Knowledge Graph Embedding1▲ 47×1 topic
  21. Internet of Things1▲ 2.5×4 topics
  22. Phylogenetic Analysis1▲ 6.8×3 topics
  23. Russia1▲ 46×2 topics
  24. Ukraine1▲ 59×2 topics
  25. Algorithmic Applications1▲ 55×2 topics
  26. Big Data1▲ 2.2×7 topics
  27. Cardiovascular Disease1▲ 1.69×2 topics
  28. Causal Discovery1▲ 59×2 topics
  29. Global Burden of Disease1▲ 7.8×2 topics
  30. Ice Nucleation1▲ 46×2 topics
  31. Mortality1▲ 3.4×2 topics
  32. Network Dynamics1▲ 19×2 topics
  33. Social Influence1▲ 8.8×2 topics
  34. Air Pollution1▲ 14×1 topic
  35. Cryptanalysis1▲ 21×4 topics
  36. Fine Particulate Air Pollution1▲ 20×1 topic
  37. Finite Elements1▲ 72×1 topic
  38. NURBS1▲ 72×1 topic
  39. Ocean Circulation1▲ 14×3 topics
  40. Water Quality1▲ 4.5×5 topics

Which research topics does Helsinki Institute for Information Technology publish most on?

By volume in 2022–2025: Atmospheric chemistry and aerosols, Advanced Graph Neural Networks, Air Quality and Health Impacts and Advanced Numerical Analysis Techniques.

Atmospheric chemistry an…2Atmospheric chemistry and aerosols: 2 fractional worksAdvanced Graph Neural Ne…1Advanced Graph Neural Networks: 1 fractional worksAir Quality and Health Impacts: 1 fractional worksAdvanced Numerical Analysis Techniques: 1 fractional worksComplex Network Analysis Techniques: 1 fractional worksGenomics and Phylogenetic Studies: 1 fractional worksData Management and Algo…1Data Management and Algorithms: 1 fractional worksClimate variability and models: 1 fractional worksAlgorithms and Data Compression: 1 fractional worksPrivacy-Preserving Techn…1Privacy-Preserving Technologies in Data: 1 fractional works
Atmospheric ScienceArtificial IntelligenceHealth, Toxicology and MutagenesisComputational Mechanics4 others

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

  1. 1 Atmospheric chemistry and aerosols Atmospheric Science 2 works
  2. 2 Advanced Graph Neural Networks Artificial Intelligence 1 works
  3. 3 Air Quality and Health Impacts Health, Toxicology and Mutagenesis 1 works
  4. 4 Advanced Numerical Analysis Techniques Computational Mechanics 1 works
  5. 5 Complex Network Analysis Techniques Statistical and Nonlinear Physics 1 works
  6. 6 Genomics and Phylogenetic Studies Molecular Biology 1 works
  7. 7 Data Management and Algorithms Signal Processing 1 works
  8. 8 Climate variability and models Global and Planetary Change 1 works
  9. 9 Algorithms and Data Compression Artificial Intelligence 1 works
  10. 10 Privacy-Preserving Technologies in Data Artificial Intelligence 1 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 available29.2%not open70.8%

World: 28% of research is openly available.

with international co-authors28.3%domestic only71.7%

World: 19% is written across borders.

How has Helsinki Institute for Information Technology's research output changed?

Output in 2018–2022 was 57% lower 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 Espoo

All research institutions in Espoo

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.