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University · Oakland · United States

University of California System

In research, University of California System stands highest in Physical Sciences (#529 of 12,888 worldwide), Computer Science (#261 of 4,667 worldwide) and Medicine (#656 of 10,443 worldwide), 2022–2025. Relative to its size it is most specialised in Nuclear and High Energy Physics and Statistics and Probability — Nuclear and High Energy Physics is 6.8× its share of world research.

universityofcalifornia.eduROR OpenAlex
World rank, 2022–2025
#574
of 28,054 · #506 all time
Rank in United States
#118
of 4,192
Research works
23k
▼ 7% vs 2013–17
Citations
701k
29.8 per fractional work
Top-10% rate
23.5%
record average 16.5%
Open access
36%
world 28%

What is University of California System 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 #529 of 12,888 26.3%985 #575
Computer ScienceField #261 of 4,667 22.8%174 #186
MedicineField #656 of 10,443 21.7%751 #617
Health SciencesDomain #844 of 11,982 21.6%845 #662
Social SciencesDomain #813 of 10,521 22.5%987 #246
Life SciencesDomain #739 of 7,800 23.3%382 #591
Social SciencesField #775 of 6,365 24.2%528 #290
Physics and AstronomyField #235 of 1,646 47.8%206 #472
Sociology and Political ScienceSubfield #501 of 2,578 23.4%194 #290
Biochemistry, Genetics and Molecular BiologyField #824 of 3,579 25.5%192 #604

Each strip is that field’s whole ranked pool, with the notch where University of California System 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).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#575 #529
  2. Computer Science#186 #261
  3. Medicine#617 #656
  4. Health Sciences#662 #844
  5. Social Sciences#246 #813
  6. Life Sciences#591 #739
  7. Social Sciences#290 #775
  8. Physics and Astronomy#472 #235
  9. Sociology and Political Science#290 #501
  10. Biochemistry, Genetics and Molecular Biology#604 #824
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does University of California System specialise in?

Where its research is concentrated relative to its size: Nuclear and High Energy Physics takes 6.8× the share of its output that it takes of world research.

  1. Nuclear and High Energy PhysicsSubfield · 68.2 works6.8×
  2. Statistics and ProbabilitySubfield · 21.7 works3.2×
← 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: 0.36× its world share, 54 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.12× its world share, 192 worksBiochemistry, Geneti…Immunology and Microbiology: 1.16× its world share, 37 worksImmunology and Micro…Neuroscience: 1.78× its world share, 92 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.58× its world share, 7 worksPharmacology, Toxico…Chemical Engineering: 0.82× its world share, 9 worksChemical EngineeringChemistry: 1.20× its world share, 60 worksChemistryComputer Science: 0.70× its world share, 174 worksComputer ScienceEarth and Planetary Sciences: 0.70× its world share, 35 worksEarth and Planetary …Energy: 0.58× its world share, 17 worksEnergyEngineering: 0.56× its world share, 268 worksEngineeringEnvironmental Science: 0.58× its world share, 92 worksEnvironmental ScienceMaterials Science: 0.61× its world share, 69 worksMaterials ScienceMathematics: 1.45× its world share, 55 worksMathematicsPhysics and Astronomy: 2.89× its world share, 206 worksPhysics and AstronomyDentistry: 0.27× its world share, 4 worksDentistryHealth Professions: 0.91× its world share, 77 worksHealth ProfessionsMedicine: 1.22× its world share, 751 worksMedicineNursing: 0.66× its world share, 10 worksNursingVeterinary: 0.66× its world share, 3 worksVeterinaryArts and Humanities: 1.68× its world share, 155 worksArts and HumanitiesBusiness, Management and Accounting: 0.45× its world share, 46 worksBusiness, Management…Decision Sciences: 0.93× its world share, 29 worksDecision SciencesEconomics, Econometrics and Finance: 1.09× its world share, 75 worksEconomics, Econometr…Psychology: 1.58× its world share, 154 worksPsychologySocial Sciences: 1.30× its world share, 528 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 2.9×. Every wedge is a field page.

Who are the top researchers at University of California System?

Ranked on the composite score, Hans Kelsen, Erving Goffman and W. Kendrick Pritchett lead among researchers whose main affiliation is University of California System.

  1. 1 Hans Kelsen · #10,595 worldwide 304 citations · 103 works
  2. 2 Erving Goffman · #11,310 worldwide 9.1k citations · 45 works
  3. 3 W. Kendrick Pritchett · #27,860 worldwide 157 citations · 63 works
  4. 4 George Malcolm Stratton · #59,934 worldwide 180 citations · 58 works
  5. 5 Charles Goodwin · #83,446 worldwide 505 citations · 24 works
  6. 6 Dwight Waldo · #112,880 worldwide 95 citations · 27 works
  7. 7 Bradford A. Booth · #119,036 worldwide 52 citations · 34 works
  8. 8 Florian Cajori · #143,541 worldwide 102 citations · 128 works
  9. 9 G. H. Guttridge · #164,106 worldwide 57 citations · 25 works
  10. 10 Raymond T. Birge · #165,027 worldwide 100 citations · 27 works
All ranked researchers at University of California System

Which keywords describe research at University of California System?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Globalization, Colonialism, Quantum Gravity, Mental Health, Black Holes, Dark Matter and History.

▲ 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. Epidemiology156▲ 1.23×130 topics
  2. Globalization103▲ 1.65×102 topics
  3. Machine Learning79▼ 0.75×63 topics
  4. Deep Learning76▼ 0.69×65 topics
  5. Inflammation72◆ 1.07×76 topics
  6. Mental Health68▲ 1.45×36 topics
  7. Public Health58▲ 1.24×56 topics
  8. Education53◆ 0.96×68 topics
  9. Treatment51▲ 1.32×48 topics
  10. Colonialism48▲ 3.2×36 topics
  11. History48▲ 2.1×38 topics
  12. Identity47▲ 2.0×50 topics
  13. Cardiovascular Disease44▲ 1.25×37 topics
  14. Risk Factors44▲ 1.24×37 topics
  15. Nationalism40▲ 2.7×25 topics
  16. Gender40▲ 2.3×44 topics
  17. Depression40▲ 1.42×21 topics
  18. Diagnosis38▲ 1.29×38 topics
  19. Neoliberalism37▲ 3.2×23 topics
  20. Religion34▲ 2.2×26 topics
  21. Culture34▲ 1.99×27 topics
  22. Literature33▲ 1.92×37 topics
  23. Quantum Gravity29▲ 11×3 topics
  24. Philosophy29▲ 2.0×26 topics
  25. Feminism28▲ 3.1×20 topics
  26. Magnetic Resonance Imaging27▲ 3.3×8 topics
  27. Black Holes27▲ 8.9×3 topics
  28. Dark Matter26▲ 7.1×4 topics
  29. Politics26▲ 3.0×17 topics
  30. Antiretroviral Therapy25▲ 4.9×6 topics
  31. Health Disparities24▲ 2.8×9 topics
  32. String Theory23▲ 12×2 topics
  33. Quantum Entanglement22▲ 11×2 topics
  34. Particle Physics22▲ 9.2×2 topics
  35. Field Theories22▲ 15×1 topic
  36. Holographic22▲ 15×1 topic
  37. Supernovae20▲ 7.4×2 topics
  38. General Relativity18▲ 8.3×2 topics
  39. Cosmological Parameters18▲ 10×1 topic
  40. Dark Energy18▲ 8.7×1 topic

Which research topics does University of California System publish most on?

By volume in 2022–2025: Black Holes and Theoretical Physics, Cosmology and Gravitation Theories, Particle physics theoretical and experimental studies and Pulmonary Hypertension Research and Treatments.

Black Holes and Theoretical Physics: 22 fractional worksCosmology and Gravitation Theories: 18 fractional worksParticle physics theoret…14Particle physics theoretical and experimental studies: 14 fractional worksPulmonary Hypertension R…12Pulmonary Hypertension Research and Treatments: 12 fractional worksHIV/AIDS Research and Interventions: 11 fractional worksChinese history and philosophy: 9 fractional worksAdvanced MRI Techniques …9Advanced MRI Techniques and Applications: 9 fractional worksRespiratory Support and …8Respiratory Support and Mechanisms: 8 fractional worksChronic Obstructive Pulm…8Chronic Obstructive Pulmonary Disease (COPD) Research: 8 fractional worksDark Matter and Cosmic P…8Dark Matter and Cosmic Phenomena: 8 fractional works
Nuclear and High Energy PhysicsAstronomy and AstrophysicsPulmonary and Respiratory MedicineInfectious Diseases2 others

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

  1. 1 Black Holes and Theoretical PhysicsNuclear and High Energy Physics 22 works
  2. 2 Cosmology and Gravitation TheoriesAstronomy and Astrophysics 18 works
  3. 3 Particle physics theoretical and experimental studiesNuclear and High Energy Physics 14 works
  4. 4 Pulmonary Hypertension Research and TreatmentsPulmonary and Respiratory Medicine 12 works
  5. 5 HIV/AIDS Research and InterventionsInfectious Diseases 11 works
  6. 6 Chinese history and philosophySociology and Political Science 9 works
  7. 7 Advanced MRI Techniques and ApplicationsRadiology, Nuclear Medicine and Imaging 9 works
  8. 8 Respiratory Support and MechanismsPulmonary and Respiratory Medicine 8 works
  9. 9 Chronic Obstructive Pulmonary Disease (COPD) ResearchPulmonary and Respiratory Medicine 8 works
  10. 10 Dark Matter and Cosmic PhenomenaNuclear and High Energy Physics 8 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 available36.3%not open63.7%

World: 28% of research is openly available.

with international co-authors16.9%domestic only83.1%

World: 19% is written across borders.

How has University of California System's research output changed?

Output in 2018–2022 was 7% 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 Oakland

All research institutions in Oakland

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.