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Tanzania vs Vietnam

On research quality in 2022-now, Tanzania ranks #64 in the world and Vietnam #66, of 189 countries. Tanzania stands higher in 7 of the 25 fields both publish in, Vietnam in 18.

Research profiles alike: 0.33somewhat alike shapes of research, whatever their size. How it is measured

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Tanzania

World rank, 2022-now
#64
#74 all time
Works, 2022-now
17k
fractional
Top-10% rate
7.7%
share of its work among the world's most cited
Open access
69%
of its works free to read

Strongest relative focus: Library and Information Sciences, Applied Microbiology and Biotechnology, Parasitology.

Vietnam

World rank, 2022-now
#66
#56 all time
Works, 2022-now
82k
fractional
Top-10% rate
7.3%
share of its work among the world's most cited
Open access
55%
of its works free to read

Strongest relative focus: Ecology, Tourism, Leisure and Hospitality Management, Civil and Structural Engineering.

Who leads, measure by measure?

Tanzania leads on 6 of 9 measures: research quality, excellence for its fields, top-10% rate, citations per work, open access and growth. Vietnam leads on 1 of 9 measures: output. The two are level on institutions in the world top 100 and international co-authorship.

Tanzania 62 level1 Vietnam
  1. #64Research qualityworld rank of 189 countries, 2022-now#66
  2. 0.90×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected0.60×
  3. 17kOutputfractional works, 2022-now82k
  4. 7.7%Top-10% rateshare of its works among the world's most cited7.3%
  5. 14.6Citations per workall time, per fractional work10.1
  6. 0World top 100institutions it holds among the world's best 1000
  7. 69%Open accessof its works free to read, all time55%
  8. 30%Internationalof its works written with co-authors abroad, all time29%
  9. +101%Growthworks in 2022-25 against 2018-21; half a bar is no change+74%

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?

Tanzania stands higher in 7 of 25 fields, Vietnam in 18. Vietnam leads most in Engineering (#48 against #84); Tanzania leads most in Agricultural and Biological Sciences (#50 against #76). Each bar is that side's standing among all countries ranked in the field: the full bar is first place.

Tanzania 718 Vietnam
  1. #50Agricultural and Biological Sciences#76
  2. #65Arts and Humanities#71
  3. #63Biochemistry, Genetics and Molecular Biology#70
  4. #59Business, Management and Accounting#38
  5. -Chemical Engineering#38
  6. -Chemistry#53
  7. #78Computer Science#51
  8. #51Decision Sciences#41
  9. -Dentistry#51
  10. -Earth and Planetary Sciences#57
  11. #62Economics, Econometrics and Finance#47
  12. -Energy#48
  13. #84Engineering#48
  14. #66Environmental Science#46
  15. #50Health Professions#71
  16. #41Immunology and Microbiology#49
  17. -Materials Science#53
  18. -Mathematics#51
  19. #49Medicine#53
  20. -Neuroscience#54
  21. #44Nursing#49
  22. -Pharmacology, Toxicology and Pharmaceutics#37
  23. -Physics and Astronomy#61
  24. #67Psychology#59
  25. #66Social Sciences#58

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 Tanzania rankVietnam rank Tanzania top 10%Vietnam top 10% Tanzania worksVietnam works
Agricultural and Biological Sciences #50 #76 9.3% 5.6% 1.8k 4.7k
Arts and Humanities #65 #71 9.3% 8.9% 341 1.5k
Biochemistry, Genetics and Molecular Biology #63 #70 7.8% 4.6% 451 3.1k
Business, Management and Accounting #59 #38 7.3% 12.6% 1.4k 4.8k
Chemical Engineering - #38 - 6.5% - 273
Chemistry - #53 - 5.4% - 1.3k
Computer Science #78 #51 7.5% 7.4% 773 8k
Decision Sciences #51 #41 3.7% 10.4% 353 1.3k
Dentistry - #51 - 9.7% - 253
Earth and Planetary Sciences - #57 - 6.0% - 1k
Economics, Econometrics and Finance #62 #47 6.2% 10.5% 768 3.3k
Energy - #48 - 7.1% - 1k
Engineering #84 #48 6.5% 6.6% 964 16k
Environmental Science #66 #46 6.8% 7.1% 1.4k 7.6k
Health Professions #50 #71 10.9% 7.8% 630 1k
Immunology and Microbiology #41 #49 10.6% 6.1% 256 555
Materials Science - #53 - 4.9% - 3.5k
Mathematics - #51 - 7.8% - 1.5k
Medicine #49 #53 8.1% 5.4% 3.1k 9.7k
Neuroscience - #54 - 4.6% - 458
Nursing #44 #49 8.3% 6.2% 220 337
Pharmacology, Toxicology and Pharmaceutics - #37 - 4.2% - 483
Physics and Astronomy - #61 - 3.9% - 1k
Psychology #67 #59 6.5% 8.8% 434 1.6k
Social Sciences #66 #58 7.4% 9.5% 3.4k 7.3k

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.

Tanzania

▲ 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. Epidemiology1,175▲ 1.47×137 topics
  2. Climate Change1,053▲ 1.93×111 topics
  3. Sustainability1,002▲ 2.0×102 topics
  4. Globalization626▲ 1.58×121 topics
  5. Environmental Impact569▲ 1.66×66 topics
  6. Sustainable Development542▲ 1.72×94 topics
  7. Education539▲ 1.56×102 topics
  8. Social Capital536▲ 5.1×20 topics
  9. Poverty Reduction482▲ 18×6 topics
  10. Supply Chain Management418▲ 2.3×25 topics
  11. Economic Development413▲ 2.6×37 topics
  12. Sustainable Agriculture403▲ 6.5×16 topics
  13. Smallholder Farmers396▲ 9.3×6 topics
  14. Rural Development392▲ 5.7×18 topics
  15. Risk Management370▲ 3.9×16 topics
  16. Gender Equality364▲ 6.4×16 topics
  17. Maternal Mortality351▲ 7.8×5 topics
  18. Community Health Workers335▲ 19×2 topics
  19. Food Security334▲ 3.1×23 topics
  20. Social Networks325▲ 6.0×10 topics
  21. Gender Inequality310▲ 11×7 topics
  22. Technology Integration307▲ 4.8×11 topics
  23. Development289▲ 4.0×21 topics
  24. Health Inequalities284▲ 12×5 topics
  25. Socio-economic Factors278▲ 12×3 topics
  26. Technology Adoption276▲ 7.4×6 topics
  27. Adaptation273▲ 4.5×14 topics
  28. Child Mortality272▲ 19×1 topic
  29. Health Systems272▲ 19×1 topic
  30. Antiretroviral Therapy235▲ 7.2×6 topics
  31. Agricultural Innovation233▲ 25×2 topics
  32. Livelihood Diversification229▲ 36×1 topic
  33. Market Participation229▲ 36×1 topic
  34. Empowerment222▲ 11×6 topics
  35. Primary Education218▲ 27×2 topics
  36. Conditional Cash Transfers218▲ 31×1 topic
  37. School Subsidies218▲ 31×1 topic
  38. Poverty Alleviation215▲ 11×3 topics
  39. Financial Inclusion209▲ 20×1 topic
  40. Microfinance209▲ 20×1 topic

Vietnam

▲ 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. Deep Learning4,809▲ 1.44×85 topics
  2. Risk Assessment3,823▲ 6.0×29 topics
  3. Machine Learning3,748▲ 1.16×96 topics
  4. GIS-based Evaluation3,304▲ 105×2 topics
  5. Fuzzy Mathematics3,282▲ 162×1 topic
  6. Set Pair Analysis3,282▲ 162×1 topic
  7. Environmental Impact2,725▲ 1.65×71 topics
  8. Epidemiology2,604▼ 0.68×138 topics
  9. Sustainability2,540◆ 1.08×124 topics
  10. Climate Change2,333◆ 0.89×119 topics
  11. Neural Networks2,310▲ 1.55×41 topics
  12. Economic Growth1,925▲ 2.4×36 topics
  13. Renewable Energy1,924▲ 1.38×58 topics
  14. Globalization1,892◆ 1.00×152 topics
  15. Nanomaterials1,645▲ 1.63×21 topics
  16. Antioxidant1,581▲ 2.4×51 topics
  17. History1,473▲ 2.2×53 topics
  18. Biomedical Applications1,456▲ 1.27×36 topics
  19. Identity1,451▲ 2.1×64 topics
  20. Religion1,430▲ 3.2×38 topics
  21. Vietnam1,369▲ 35×2 topics
  22. Culture1,363▲ 2.7×37 topics
  23. Gender1,352▲ 2.6×52 topics
  24. Colonialism1,347▲ 2.9×41 topics
  25. Politics1,301▲ 5.1×21 topics
  26. Society1,296▲ 7.0×20 topics
  27. Economy1,273▲ 18×7 topics
  28. Convolutional Neural Networks1,239▲ 1.76×14 topics
  29. Consumer Behavior1,143▲ 1.90×19 topics
  30. Higher Education1,077▲ 2.1×30 topics
  31. Anti-inflammatory1,041▲ 3.8×29 topics
  32. Environmental Management989▲ 2.5×23 topics
  33. Medicinal Plants980▲ 2.6×20 topics
  34. Infrastructure912▲ 8.0×8 topics
  35. Monitoring790▲ 9.0×5 topics
  36. Laser Scanning643▲ 32×2 topics
  37. Geodetic639▲ 83×1 topic
  38. Leveling639▲ 83×1 topic
  39. Second Language Acquisition571▲ 6.4×3 topics
  40. Corrective Feedback531▲ 7.4×1 topic

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?

Vietnam has out-published Tanzania every year since 1986, when it overtook it.

still counting10k20k30kVietnam26k in 2025Tanzania5,567 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 counting0.20%0.40%0.60%Vietnam0.44% in 2025Tanzania0.095% 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%Tanzania8.0% in 2025Vietnam7.4% 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.

Tanzania 05 level0 Vietnam
  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, Tanzania or Vietnam?

Vietnam publishes 4.8× as much research as Tanzania in 2022-now (82k against 17k fractional works).

Whose research has more impact, Tanzania or Vietnam?

7.7% of Tanzania's research reaches the world's top 10% most cited, against 7.3% for Vietnam.

Is Tanzania or Vietnam growing faster?

Output in 2022-25 was +101% against 2018-21 for Tanzania, and +74% for Vietnam.

Which has more open access research, Tanzania or Vietnam?

69% of Tanzania's research is free to read, against 55% of Vietnam's.

Which has more world-class institutions, Tanzania or Vietnam?

Tanzania holds 0 of the world's top 100 research institutions and Vietnam 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%.

Tanzania

  1. 1University of Dar es Salaam7.5% top 10% · 2.6k works
  2. 2The University of Dodoma12.5% top 10% · 1.8k works
  3. 3Muhimbili University of Health and Allied Sciences8.3% top 10% · 928 works
  4. 4Mzumbe University8.5% top 10% · 684 works
  5. 5Nelson Mandela African Institution of Science and Technology11.1% top 10% · 566 works
  6. 6Mbeya University of Science and Technology7.2% top 10% · 439 works

Vietnam

  1. 1University of Economics Ho Chi Minh City17.0% top 10% · 1.6k works
  2. 2FPT University10.5% top 10% · 1.7k works
  3. 3National Economics University15.8% top 10% · 1.2k works
  4. 4Phenikaa University9.7% top 10% · 1k works
  5. 5Duy Tan University14.0% top 10% · 1.3k works
  6. 6Ho Chi Minh City Open University15.5% top 10% · 857 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.

Tanzania

  1. 1 Andrew R. Williamson #1,536 worldwide 85k citations · 325 works
  2. 2 Audax Z. P. Mabulla #25,355 worldwide 9.3k citations · 201 works
  3. 3 Susan F. Rumisha #33,455 worldwide 37k citations · 167 works
  4. 4 Gerry F. Killeen #34,603 worldwide 16k citations · 207 works
  5. 5 Fredros O. Okumu #46,417 worldwide 6.3k citations · 186 works

Vietnam

  1. 1 Xuan Vinh Vo #1,005 worldwide 17k citations · 382 works
  2. 2 Arivalagan Pugazhendhi #1,857 worldwide 47k citations · 692 works
  3. 3 Dinh‐Toi Chu #3,275 worldwide 128k citations · 334 works
  4. 4 Bach Xuan Tran #5,523 worldwide 263k citations · 504 works
  5. 5 Anh Tuan Hoang #8,950 worldwide 26k citations · 465 works