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Libya vs Yemen

On research quality in 2022-now, Yemen ranks #105 in the world and Libya #188, of 189 countries. Libya stands higher in 1 of the 13 fields both publish in, Yemen in 12.

Research profiles alike: 0.75very similar shapes of research, whatever their size. How it is measured

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Libya

World rank, 2022-now
#188
#201 all time
Works, 2022-now
6.9k
fractional
Top-10% rate
3.6%
share of its work among the world's most cited
Open access
70%
of its works free to read

Strongest relative focus: General Dentistry, Applied Microbiology and Biotechnology, Drug Discovery.

Yemen

World rank, 2022-now
#105
#122 all time
Works, 2022-now
7.2k
fractional
Top-10% rate
8.7%
share of its work among the world's most cited
Open access
69%
of its works free to read

Strongest relative focus: Drug Discovery, General Dentistry, Numerical Analysis.

Who leads, measure by measure?

Yemen leads on 7 of 9 measures: research quality, excellence for its fields, output, top-10% rate, citations per work, international co-authorship and growth. Libya leads on none. The two are level on institutions in the world top 100 and open access.

Libya 02 level7 Yemen
  1. #188Research qualityworld rank of 189 countries, 2022-now#105
  2. 0.35×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected0.77×
  3. 6.9kOutputfractional works, 2022-now7.2k
  4. 3.6%Top-10% rateshare of its works among the world's most cited8.7%
  5. 5.5Citations per workall time, per fractional work8.7
  6. 0World top 100institutions it holds among the world's best 1000
  7. 70%Open accessof its works free to read, all time69%
  8. 27%Internationalof its works written with co-authors abroad, all time54%
  9. +79%Growthworks in 2022-25 against 2018-21; half a bar is no change+91%

A rank is drawn as its standing: the longer the bar, the nearer the top. Anything else is drawn against the larger of the two, and two values a hair apart are called level. Quality, excellence and the top-10% rate are explained in the methodology.

Who leads in each field?

Libya stands higher in 1 of 13 fields, Yemen in 12. Yemen leads most in Computer Science (#84 against #126). Each bar is that side's standing among all countries ranked in the field: the full bar is first place.

Libya 112 Yemen
  1. #123Agricultural and Biological Sciences#114
  2. -Arts and Humanities#94
  3. #104Biochemistry, Genetics and Molecular Biology#81
  4. -Business, Management and Accounting#83
  5. #126Computer Science#84
  6. #61Dentistry-
  7. #125Engineering#86
  8. #121Environmental Science#118
  9. -Health Professions#88
  10. -Materials Science#65
  11. -Mathematics#56
  12. #152Medicine#130
  13. #147Social Sciences#131

Standing is the percentile of world rank within each field, 2022-now; the printed number is the rank itself. A dash means the field is too small there to rank. How sides are compared.

The numbers behind each field

Click a heading to sort. The side that does better in a pair of columns is shaded: a lower rank, a higher rate, more works.

Field Libya rankYemen rank Libya top 10%Yemen top 10% Libya worksYemen works
Agricultural and Biological Sciences #123 #114 2.9% 7.4% 477 291
Arts and Humanities - #94 - 10.4% - 203
Biochemistry, Genetics and Molecular Biology #104 #81 2.3% 7.9% 277 215
Business, Management and Accounting - #83 - 12.4% - 320
Computer Science #126 #84 3.4% 11.7% 549 755
Dentistry #61 - 1.1% - 208 -
Engineering #125 #86 3.9% 9.2% 1.1k 889
Environmental Science #121 #118 3.8% 7.5% 329 276
Health Professions - #88 - 8.4% - 244
Materials Science - #65 - 15.4% - 278
Mathematics - #56 - 10.1% - 231
Medicine #152 #130 2.3% 5.7% 1.6k 1.4k
Social Sciences #147 #131 6.5% 8.0% 640 859

What is each known for?

The keywords that describe each side's research, by fractional works in 2022-now and weighted toward what it does more of than the world.

Libya

▲ more of its work than of the world's◆ about the world's share▼ less than the world's
All 40 words, with their numbers
  1. Epidemiology484▲ 1.44×134 topics
  2. Machine Learning381▲ 1.35×92 topics
  3. Deep Learning291◆ 1.00×77 topics
  4. Inflammation220▲ 1.23×83 topics
  5. Renewable Energy207▲ 1.69×49 topics
  6. Environmental Impact185▲ 1.28×57 topics
  7. Oxidative Stress171▲ 1.23×60 topics
  8. Cardiovascular Disease162▲ 1.68×38 topics
  9. COVID-19158▲ 1.43×30 topics
  10. Quality of Life157▲ 1.29×49 topics
  11. Antioxidant145▲ 2.5×50 topics
  12. Antioxidant Activity143▲ 2.7×32 topics
  13. Metabolic Syndrome126▲ 1.84×23 topics
  14. Culture109▲ 2.5×11 topics
  15. Literature108▲ 2.3×16 topics
  16. Islam103▲ 5.9×5 topics
  17. Diabetes103▲ 2.4×21 topics
  18. Ethnicity103▲ 3.3×8 topics
  19. Philosophy101▲ 2.7×8 topics
  20. Medicinal Plants101▲ 3.1×19 topics
  21. Science100▲ 4.8×5 topics
  22. Social Influence99▲ 5.6×3 topics
  23. Sharia Law98▲ 8.1×2 topics
  24. Malay Language98▲ 8.2×1 topic
  25. Prevention94▲ 2.6×16 topics
  26. Language Teaching93▲ 4.1×8 topics
  27. Unmanned Aerial Vehicles88▲ 5.5×4 topics
  28. Legal Regulation87▲ 4.6×8 topics
  29. Design86▲ 6.2×5 topics
  30. Strategic Planning86▲ 6.9×3 topics
  31. Economic Security85▲ 4.8×5 topics
  32. Modernization83▲ 5.4×2 topics
  33. Public Oversight83▲ 8.0×1 topic
  34. Transport Policy83▲ 8.0×1 topic
  35. Foresight82▲ 7.5×2 topics
  36. Air Force82▲ 8.2×1 topic
  37. Warfare82▲ 8.2×1 topic
  38. Infection Control55▲ 7.8×2 topics
  39. Corrective Feedback55▲ 8.7×1 topic
  40. L2 Motivation55▲ 8.7×1 topic

Yemen

▲ more of its work than of the world's◆ about the world's share▼ less than the world's
All 40 words, with their numbers
  1. Machine Learning448▲ 1.61×94 topics
  2. Epidemiology430▲ 1.30×134 topics
  3. Deep Learning344▲ 1.19×84 topics
  4. Healthcare203▲ 2.1×31 topics
  5. Artificial Intelligence196▲ 1.65×57 topics
  6. Globalization192▲ 1.17×100 topics
  7. Supply Chain Management188▲ 2.5×23 topics
  8. Education169▲ 1.18×102 topics
  9. Ethnicity125▲ 4.0×15 topics
  10. Digital Transformation124▲ 2.8×26 topics
  11. Literature121▲ 2.6×27 topics
  12. Culture120▲ 2.8×21 topics
  13. History114▲ 1.97×25 topics
  14. Knowledge Management108▲ 2.3×30 topics
  15. Legal Regulation106▲ 5.7×8 topics
  16. Philosophy104▲ 2.8×22 topics
  17. Social Influence103▲ 5.8×3 topics
  18. Economic Security99▲ 5.6×7 topics
  19. Science99▲ 4.8×7 topics
  20. Islam98▲ 5.7×4 topics
  21. Customer Satisfaction98▲ 3.7×9 topics
  22. IoT97▲ 3.1×17 topics
  23. Smart Cities97▲ 4.4×8 topics
  24. Malay Language96▲ 8.2×1 topic
  25. Sharia Law96▲ 8.1×1 topic
  26. Corpus Linguistics85▲ 4.8×5 topics
  27. Foresight84▲ 7.7×2 topics
  28. Organizational Performance82▲ 3.8×11 topics
  29. Unmanned Aerial Vehicles81▲ 5.2×5 topics
  30. Strategic Planning80▲ 6.5×5 topics
  31. Design80▲ 5.8×6 topics
  32. Public Oversight79▲ 7.7×1 topic
  33. Transport Policy79▲ 7.7×1 topic
  34. Modernization78▲ 5.1×3 topics
  35. Air Force78▲ 7.9×1 topic
  36. Warfare78▲ 7.9×1 topic
  37. Nonlinear Equations76▲ 7.1×6 topics
  38. Social Media Marketing62▲ 15×1 topic
  39. Fractional Calculus58▲ 12×2 topics
  40. Cross-Cultural Communication57▲ 7.6×3 topics

Size is fractional works in the topics tagged with each word; colour is the word's share of the side's work against its share of the world's. Each word links to the topic it comes from most.

How has their output grown?

Libya has out-published Yemen every year since 2025, when it overtook it.

still counting1k2k3kLibya2,616 in 2025Yemen2,139 in 20251990200020102020

Fractional works per year.

Their share of all research

Growing output can still be a shrinking share, because all of science grows. Each line is a side as a percentage of every work published that year.

still counting0.020%0.040%0.060%Libya0.044% in 2025Yemen0.036% in 202519801990200020102020

Fractional works over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

The share of each side's works, year by year, that reached the world's 10% most cited for their field and year. The average of all institutions is 10.0% (why not 10%).

still counting5%10%15%Yemen8.6% in 2025Libya3.3% in 2025200020102020

A year with under 1% of the side's peak output is left out: a rate over a handful of papers says nothing. The latest years are still being cited.

Who holds more of the world's best institutions?

A country's average quality and the number of institutions it holds at the very top can disagree, and both are worth knowing. The counts are nested: an institution in the top 50 is also in the top 100.

Libya 05 level0 Yemen
  1. 0In the world top 500
  2. 0In the top 1000
  3. 0In the top 5000
  4. 0In the top 1,0000
  5. #51Elite capacityrank among 204 countries#51

Institutions ranked on research quality, 2022-now. Elite capacity counts a country's institutions by their worldwide rank, weighted so a place at #1 counts for more than one at #480.

Which publishes more research, Libya or Yemen?

Yemen publishes 1.0× as much research as Libya in 2022-now (7.2k against 6.9k fractional works).

Whose research has more impact, Libya or Yemen?

8.7% of Yemen's research reaches the world's top 10% most cited, against 3.6% for Libya.

Is Libya or Yemen growing faster?

Output in 2022-25 was +91% against 2018-21 for Yemen, and +79% for Libya.

Which has more open access research, Libya or Yemen?

70% of Libya's research is free to read, against 69% of Yemen's.

Which has more world-class institutions, Libya or Yemen?

Libya holds 0 of the world's top 100 research institutions and Yemen 0; in the top 1,000 it is 0 against 0.

Which institutions lead in each country?

The highest-ranked institutions on each side on research quality, 2022-now. The percentage is each institution's own top-10% rate: the share of its works that are among the world's 10% most cited for their field and year. Every figure stands alone, so they do not add up to 100%.

Libya

  1. 1Al Zawiya University5.6% top 10% · 616 works
  2. 2Misurata University3.6% top 10% · 557 works
  3. 3University Elmergib4.1% top 10% · 366 works
  4. 4Libyan Academy5.6% top 10% · 359 works
  5. 5Omar Al-Mukhtar University2.9% top 10% · 625 works
  6. 6Sebha University3.9% top 10% · 458 works

Yemen

  1. 1University of Science and Technology5.0% top 10% · 2.1k works
  2. 2Sana'a University7.9% top 10% · 1.7k works
  3. 3Ibb University15.3% top 10% · 445 works
  4. 4Taiz University11.9% top 10% · 445 works
  5. 5Thamar University12.1% top 10% · 474 works
  6. 6University of Aden6.6% top 10% · 551 works

The number is the rank inside the country. The track on each row is the top-10% rate; the tick is the average of all institutions, 10.0% (how it is set): teal above it, red below. The ranking is the quality score, which compares the rate with what each institution's own topics predict and adds a small reward for size, so the rates do not fall in order.

Who are the top researchers on each side?

The most cited researchers on each side, among those ranked.

Libya

  1. 1 Muhammed Elhadi #5,131 worldwide 74k citations · 402 works
  2. 2 Ali Meftah Gerged #84,887 worldwide 3.5k citations · 89 works
  3. 3 Ibrahim Ahmed Badi #145,525 worldwide 2.3k citations · 100 works
  4. 4 Yasser Fathi Nassar #226,826 worldwide 4.4k citations · 136 works
  5. 5 Rabia Emhamed Al Mamlook #245,678 worldwide 2.3k citations · 88 works

Yemen

  1. 1 Hamood Mohammed Al‐Hattami #33,148 worldwide 1.4k citations · 60 works
  2. 2 Abdulwahab Rajeh #54,107 worldwide 5.9k citations · 92 works
  3. 3 Mohammed A. Al‐Hakimi #61,642 worldwide 1.2k citations · 42 works
  4. 4 Saeed Rabea Baatwah #166,289 worldwide 933 citations · 51 works
  5. 5 Saeed Hamood Alsamhi #167,907 worldwide 7.2k citations · 201 works