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University · Oran · Algeria

Université Oran 1 Ahmed Ben Bella

In research, Université Oran 1 Ahmed Ben Bella stands highest in Physical Sciences (#4,748 of 12,888 worldwide), Health Sciences (#8,101 of 11,982 worldwide) and Computer Science (#3,317 of 4,667 worldwide), 2022–2025. Relative to its size it is most specialised in Applied Mathematics, Mathematics and Computational Theory and Mathematics — Applied Mathematics is 13.4× its share of world research.

univ-oran1.dzROR OpenAlex
World rank, 2022–2025
#7,553
of 28,054 · #10,686 all time
Rank in Algeria
#25
of 79
Research works
4.6k
▲ 22% vs 2013–17
Citations
29k
6.3 per fractional work
Top-10% rate
8.2%
record average 16.5%
Open access
40%
world 28%

What is Université Oran 1 Ahmed Ben Bella 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 #4,748 of 12,888 7.9%479 #6928
Health SciencesDomain #8,101 of 11,982 4.2%200 #11198
Computer ScienceField #3,317 of 4,667 8.4%101 #3533
Social SciencesDomain #7,580 of 10,521 14.2%144 #9644
MedicineField #7,535 of 10,443 3.9%171 #10667
EngineeringField #4,944 of 6,636 8.9%123 #6466
Life SciencesDomain #6,977 of 7,800 8.9%113 #9968
MathematicsField #954 of 1,053 4.1%80 #1706
Social SciencesField #5,828 of 6,365 10.2%67 #7466

Each strip is that field’s whole ranked pool, with the notch where Université Oran 1 Ahmed Ben Bella 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#6,928 #4,748
  2. Health Sciences#11,198 #8,101
  3. Computer Science#3,533 #3,317
  4. Social Sciences#9,644 #7,580
  5. Medicine#10,667 #7,535
  6. Engineering#6,466 #4,944
  7. Life Sciences#9,968 #6,977
  8. Mathematics#1,706 #954
  9. Social Sciences#7,466 #5,828
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 Université Oran 1 Ahmed Ben Bella specialise in?

Where its research is concentrated relative to its size: Applied Mathematics takes 13.4× the share of its output that it takes of world research.

  1. Applied MathematicsSubfield · 36.1 works13×
  2. MathematicsField · 80.2 works7.3×
  3. Computational Theory and MathematicsSubfield · 21.4 works5.4×
← 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: 1.34× its world share, 60 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.80× its world share, 40 worksBiochemistry, Geneti…Immunology and Microbiology: 0.24× its world share, 2 worksImmunology and Micro…Neuroscience: 0.29× its world share, 4 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 2.26× its world share, 8 worksPharmacology, Toxico…Chemical Engineering: 0.97× its world share, 3 worksChemical EngineeringChemistry: 2.20× its world share, 32 worksChemistryComputer Science: 1.38× its world share, 101 worksComputer ScienceEarth and Planetary Sciences: 0.97× its world share, 14 worksEarth and Planetary …Energy: 1.29× its world share, 11 worksEnergyEngineering: 0.87× its world share, 123 worksEngineeringEnvironmental Science: 1.07× its world share, 50 worksEnvironmental ScienceMaterials Science: 1.64× its world share, 54 worksMaterials ScienceMathematics: 7.28× its world share, 80 worksMathematicsPhysics and Astronomy: 0.53× its world share, 11 worksPhysics and AstronomyDentistry: 0.40× its world share, 2 worksDentistryHealth Professions: 0.70× its world share, 17 worksHealth ProfessionsMedicine: 0.95× its world share, 171 worksMedicineNursing: 1.80× its world share, 8 worksNursingVeterinary: 0.97× its world share, 1 worksVeterinaryArts and Humanities: 0.69× its world share, 19 worksArts and HumanitiesBusiness, Management and Accounting: 0.63× its world share, 19 worksBusiness, Management…Decision Sciences: 0.64× its world share, 6 worksDecision SciencesEconomics, Econometrics and Finance: 1.03× its world share, 21 worksEconomics, Econometr…Psychology: 0.48× its world share, 14 worksPsychologySocial Sciences: 0.56× its world share, 67 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Mathematics, 7.3×. Every wedge is a field page.

Who are the top researchers at Université Oran 1 Ahmed Ben Bella?

Ranked on the composite score, Moulay Belkhodja, Abderrazak Marouf and Leïla Houti lead among researchers whose main affiliation is Université Oran 1 Ahmed Ben Bella.

  1. 1 Moulay Belkhodja Algeria · #347,089 worldwide 97 citations · 16 works
  2. 2 Abderrazak Marouf Algeria · #393,510 worldwide 27 citations · 36 works
  3. 3 Leïla Houti Algeria · #454,189 worldwide 45 citations · 19 works
  4. 4 Amina Chentouf Algeria · #725,743 worldwide 1 citations · 18 works
  5. 5 Ghalem Belalem Algeria · #768,755 worldwide 71 citations · 43 works
  6. 6 A. Derdour Algeria · #928,178 worldwide 80 citations · 26 works
  7. 7 Kacem Belghaba Algeria · #929,941 worldwide 20 citations · 16 works
  8. 8 B. Khelifa Algeria · #930,608 worldwide 77 citations · 28 works
  9. 9 S. Lellou Algeria · #1,062,454 worldwide 0 citations · 15 works
  10. 10 A. Khelil Algeria · #1,104,248 worldwide 51 citations · 21 works
All ranked researchers at Université Oran 1 Ahmed Ben Bella

Which keywords describe research at Université Oran 1 Ahmed Ben Bella?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Parallel Computing, Iterative Methods, Nanocomposites, Localization, Holomorphic Functions, Matrix Computations, Numerical Linear Algebra and Scattering Theory.

▲ 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. Machine Learning34◆ 1.10×55 topics
  2. Deep Learning32◆ 1.01×45 topics
  3. Epidemiology28▼ 0.77×80 topics
  4. Environmental Impact22▲ 1.40×31 topics
  5. Nanocomposites21▲ 2.8×18 topics
  6. Biomedical Applications21▲ 1.86×27 topics
  7. Nanomaterials16▲ 1.61×12 topics
  8. Antioxidant14▲ 2.2×33 topics
  9. Iterative Methods13▲ 36×2 topics
  10. Parallel Computing13▲ 12×2 topics
  11. Localization13▲ 11×4 topics
  12. Holomorphic Functions12▲ 54×2 topics
  13. Antioxidant Activity12▲ 2.0×26 topics
  14. Matrix Computations12▲ 49×1 topic
  15. Numerical Linear Algebra12▲ 49×1 topic
  16. Scattering Theory12▲ 40×2 topics
  17. Differential Operators12▲ 89×1 topic
  18. Spectral Theory12▲ 89×1 topic
  19. Composition Operators11▲ 79×1 topic
  20. Nonlinear Equations11▲ 9.4×6 topics
  21. Weighted Spaces11▲ 56×1 topic
  22. Health Benefits10▲ 3.3×14 topics
  23. Boundary Value Problems10▲ 21×2 topics
  24. Environmental Monitoring10▲ 2.8×6 topics
  25. Heavy Metals10▲ 4.5×6 topics
  26. Adsorption9▲ 4.4×6 topics
  27. Controllability9▲ 21×2 topics
  28. Islam8▲ 4.3×4 topics
  29. Nonlinear Systems8▲ 4.1×5 topics
  30. Anomalous Diffusion7▲ 14×1 topic
  31. Fractional Calculus7▲ 13×2 topics
  32. Homotopy Analysis Method7▲ 16×1 topic
  33. Fractional Differential Equations7▲ 33×1 topic
  34. Semilinear Differential Equations7▲ 33×1 topic
  35. Prebiotics7▲ 7.5×2 topics
  36. Contaminant Removal6▲ 9.1×1 topic
  37. Surface Area6▲ 9.1×1 topic
  38. North Africa6▲ 17×2 topics
  39. Numerical Methods6▲ 8.0×5 topics
  40. Pesticides6▲ 9.1×3 topics

Which research topics does Université Oran 1 Ahmed Ben Bella publish most on?

By volume in 2022–2025: Matrix Theory and Algorithms, Spectral Theory in Mathematical Physics, Holomorphic and Operator Theory and Fractional Differential Equations Solutions.

Matrix Theory and Algorithms: 12 fractional worksSpectral Theory in Mathematical Physics: 12 fractional worksHolomorphic and Operator…11Holomorphic and Operator Theory: 11 fractional worksFractional Differential …7Fractional Differential Equations Solutions: 7 fractional worksNonlinear Differential Equations Analysis: 7 fractional worksAdsorption and biosorption for pollutant removal: 6 fractional worksTechnology-Enhanced Educ…5Technology-Enhanced Education Studies: 5 fractional worksProbiotics and Fermented Foods: 5 fractional worksDifferential Equations and Numerical Methods: 5 fractional worksbiodegradable polymer synthesis and properties: 5 fractional works
Computational Theory and MathematicsMathematical PhysicsApplied MathematicsModeling and Simulation5 others

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

  1. 1 Matrix Theory and Algorithms Computational Theory and Mathematics 12 works
  2. 2 Spectral Theory in Mathematical Physics Mathematical Physics 12 works
  3. 3 Holomorphic and Operator Theory Applied Mathematics 11 works
  4. 4 Fractional Differential Equations Solutions Modeling and Simulation 7 works
  5. 5 Nonlinear Differential Equations Analysis Applied Mathematics 7 works
  6. 6 Adsorption and biosorption for pollutant removal Water Science and Technology 6 works
  7. 7 Technology-Enhanced Education Studies Education 5 works
  8. 8 Probiotics and Fermented Foods Food Science 5 works
  9. 9 Differential Equations and Numerical Methods Numerical Analysis 5 works
  10. 10 biodegradable polymer synthesis and properties Biomaterials 5 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 available40.2%not open59.8%

World: 28% of research is openly available.

with international co-authors22.1%domestic only77.9%

World: 19% is written across borders.

How has Université Oran 1 Ahmed Ben Bella's research output changed?

Output in 2018–2022 was 22% 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 Oran

All research institutions in Oran

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.