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Research facility · Tokyo · Japan

IIJ Research Laboratory

iij-ii.co.jp/en/index.htmlROR OpenAlex
World rank, all time
#28,145
of 34,923
Rank in Japan
#1,156
of 1,923
Research works
145
▲ 120% vs 2018-21
Citations
776
5.4 per fractional work
Top-10% rate
7.4%
all institutions 10.0%
vs its own fields
1.00×
1.00× is exactly expected
Open access
58%
world 40%
International
28%
world 18%
IIJ Research Laboratory

Which fields of science does IIJ Research Laboratory work in?

In 2022-now, 64% of research at IIJ Research Laboratory is in Physical Sciences, 28% in Social Sciences. Its largest fields are Computer Science (30%), Social Sciences (23%), Engineering (20%). It does 1.6× the world's share of Physical Sciences.

Physical Sciences: 41 fractional works · 64.2% of its workComputer Science: 19 fractional works · 29.7% of its workComputer Networks and Communications: 7 fractional works · 11.5% of its workInformation Systems: 5 fractional works · 8.2% of its workArtificial Intelligence: 5 fractional works · 7.1% of its workHardware and Architecture: 1 fractional works · 1.7% of its workComputer Vision and Pattern Recognition: 1 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEngineering: 13 fractional works · 20.1% of its workMechanical Engineering: 3 fractional works · 4.7% of its workMechanics of Materials: 2 fractional works · 3.1% of its workElectrical and Electronic Engineering: 2 fractional works · 2.5% of its workAerospace Engineering: 1 fractional works · 2.1% of its workCivil and Structural Engineering: 1 fractional works · 1.5% of its workComputational Mechanics: 1 fractional works · 1.3% of its workControl and Systems Engineering: 1 fractional works · 1.2% of its workOcean Engineering: 1 fractional works · 1.2% of its workBiomedical Engineering: 1 fractional works · 1.1% of its workIndustrial and Manufacturing Engineering: 1 fractional works · 1.1% of its workMedia Technology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEnvironmental Science: 3 fractional works · 4.4% of its workGlobal and Planetary Change: 1 fractional works · 1.8% of its workNature and Landscape Conservation: 1 fractional works · 1.6% of its workManagement, Monitoring, Policy and Law: 0 fractional works · 0.5% of its workPollution: 0 fractional works · 0.5% of its workMaterials Science: 2 fractional works · 3.9% of its workMaterials Chemistry: 2 fractional works · 3.4% of its workElectronic, Optical and Magnetic Materials: 0 fractional works · 0.5% of its workEnergy: 1 fractional works · 2.1% of its workRenewable Energy, Sustainability and the Environment: 1 fractional works · 2.1% of its workEarth and Planetary Sciences: 1 fractional works · 1.8% of its workGeochemistry and Petrology: 1 fractional works · 1.1% of its workAtmospheric Science: 0 fractional works · 0.5% of its workGeology: 0 fractional works · 0.3% of its workChemistry: 1 fractional works · 1.1% of its workAnalytical Chemistry: 0 fractional works · 0.5% of its workInorganic Chemistry: 0 fractional works · 0.5% of its workMathematics: 0 fractional works · 0.5% of its workDiscrete Mathematics and Combinatorics: 0 fractional works · 0.5% of its workPhysics and Astronomy: 0 fractional works · 0.5% of its workCondensed Matter Physics: 0 fractional works · 0.5% of its workSocial Sciences: 18 fractional works · 28.4% of its workSocial Sciences: 15 fractional works · 23.0% of its workEducation: 3 fractional works · 5.2% of its workSociology and Political Science: 3 fractional works · 5.1% of its workPolitical Science and International Relations: 2 fractional works · 3.9% of its workGeography, Planning and Development: 2 fractional works · 2.6% of its workTransportation: 2 fractional works · 2.6% of its workLaw: 2 fractional works · 2.4% of its workDevelopment: 0 fractional works · 0.5% of its workLinguistics and Language: 0 fractional works · 0.4% of its workAnthropology: 0 fractional works · 0.3% of its workEconomics, Econometrics and Finance: 1 fractional works · 1.6% of its workGeneral Economics, Econometrics and Finance: 1 fractional works · 1.1% of its workEconomics and Econometrics: 0 fractional works · 0.6% of its workPsychology: 1 fractional works · 1.6% of its workClinical Psychology: 0 fractional works · 0.5% of its workDevelopmental and Educational Psychology: 0 fractional works · 0.5% of its workExperimental and Cognitive Psychology: 0 fractional works · 0.3% of its workSocial Psychology: 0 fractional works · 0.3% of its workArts and Humanities: 1 fractional works · 1.2% of its workLanguage and Linguistics: 0 fractional works · 0.7% of its workHistory and Philosophy of Science: 0 fractional works · 0.3% of its workLiterature and Literary Theory: 0 fractional works · 0.3% of its workBusiness, Management and Accounting: 1 fractional works · 1.1% of its workStrategy and Management: 1 fractional works · 1.1% of its workHealth Sciences: 3 fractional works · 4.8% of its workMedicine: 3 fractional works · 4.8% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 1.4% of its workPhysiology: 0 fractional works · 0.8% of its workPsychiatry and Mental health: 0 fractional works · 0.8% of its workEndocrinology, Diabetes and Metabolism: 0 fractional works · 0.5% of its workFamily Practice: 0 fractional works · 0.5% of its workHealth Informatics: 0 fractional works · 0.5% of its workSurgery: 0 fractional works · 0.3% of its workLife Sciences: 2 fractional works · 2.6% of its workAgricultural and Biological Sciences: 1 fractional works · 1.4% of its workPlant Science: 1 fractional works · 0.9% of its workGeneral Agricultural and Biological Sciences: 0 fractional works · 0.5% of its workNeuroscience: 0 fractional works · 0.8% of its workCognitive Neuroscience: 0 fractional works · 0.8% of its workBiochemistry, Genetics and Molecular Biology: 0 fractional works · 0.4% of its workGenetics: 0 fractional works · 0.4% of its workALL ITS WORKIIJ ResearchLaboratory64fractional works, 2022-now
Life Sciences3%Physical Sciences64%Health Sciences5%Social Sciences28%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 18 fields, with their numbers
    1. Computer Science1929.7%
    2. Engineering1320.1%
    3. Environmental Science34.4%
    4. Materials Science23.9%
    5. Energy12.1%
    6. Earth and Planetary Sciences11.8%
    7. Chemistry11.1%
    8. Mathematics00.5%
    9. Physics and Astronomy00.5%
    1. Social Sciences1523.0%
    2. Economics, Econometrics and Finance11.6%
    3. Psychology11.6%
    4. Arts and Humanities11.2%
    5. Business, Management and Accounting11.1%
    1. Medicine34.8%
    1. Agricultural and Biological Sciences11.4%
    2. Neuroscience00.8%
    3. Biochemistry, Genetics and Molecular Biology00.4%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 0.29× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.07× its world share, 0 worksBiochemistry, Geneti…Neuroscience: 0.48× its world share, 0 worksNeuroscienceChemistry: 0.67× its world share, 1 worksChemistryComputer Science: 3.82× its world share, 19 worksComputer ScienceEarth and Planetary Sciences: 1.17× its world share, 1 worksEarth and Planetary …Energy: 2.27× its world share, 1 worksEnergyEngineering: 1.34× its world share, 13 worksEngineeringEnvironmental Science: 0.89× its world share, 3 worksEnvironmental ScienceMaterials Science: 1.12× its world share, 2 worksMaterials ScienceMathematics: 0.44× its world share, 0 worksMathematicsPhysics and Astronomy: 0.23× its world share, 0 worksPhysics and AstronomyMedicine: 0.25× its world share, 3 worksMedicineArts and Humanities: 0.41× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.32× its world share, 1 worksBusiness, Management…Economics, Econometrics and Finance: 0.75× its world share, 1 worksEconomics, Econometr…Psychology: 0.51× its world share, 1 worksPsychologySocial Sciences: 1.81× its world share, 15 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Computer Science, 3.8×. Every wedge is a field page.

All 18 fields, with their numbers
  1. Computer Science3.82×19 works
  2. Energy2.27×1 works
  3. Social Sciences1.81×15 works
  4. Engineering1.34×13 works
  5. Earth and Planetary Sciences1.17×1 works
  6. Materials Science1.12×2 works
  7. Environmental Science0.89×3 works
  8. Economics, Econometrics and Finance0.75×1 works
  9. Chemistry0.67×1 works
  10. Psychology0.51×1 works
  11. Neuroscience0.48×0 works
  12. Mathematics0.44×0 works
  13. Arts and Humanities0.41×1 works
  14. Business, Management and Accounting0.32×1 works
  15. Agricultural and Biological Sciences0.29×1 works
  16. Medicine0.25×3 works
  17. Physics and Astronomy0.23×0 works
  18. Biochemistry, Genetics and Molecular Biology0.07×0 works

Who are the top researchers at IIJ Research Laboratory?

Ranked on the quality score, Pierre-Louis Aublin, Kenjiro Cho and Romain Fontugne lead among researchers whose main affiliation is IIJ Research Laboratory.

  1. 1 Pierre-Louis Aublin Japan · #1,139,115 worldwide 744 citations · 22 works
  2. 2 Kenjiro Cho Japan · #1,191,369 worldwide 1.6k citations · 74 works
  3. 3 Romain Fontugne Japan · #1,828,318 worldwide 1.3k citations · 81 works
  4. 4 Atarashi Ray Japan · #4,818,301 worldwide 12 citations · 20 works
All ranked researchers at IIJ Research Laboratory

What are the most cited papers from IIJ Research Laboratory?

The most cited paper from IIJ Research Laboratory is "The impact and implications of the growth in residential user-to-user traffic" (Kenjiro Cho, Kensuke Fukuda, Hiroshi Esaki et al., 2006), with 171 citations. Next come "10 Lessons from 10 Years of Measuring and Modeling the Internet's Autonomous Systems" (165) and "Evapotranspiration over a Japanese cypress forest. I. Eddy covariance fluxes and surface conductance characteristics for 3 years" (99).

Most cited papers
#PaperReleasedCitations
1 The impact and implications of the growth in residential user-to-user traffic Kenjiro Cho, Kensuke Fukuda, Hiroshi Esaki et al. · ACM SIGCOMM Computer Communication Review 11 Aug 2006 171
2 10 Lessons from 10 Years of Measuring and Modeling the Internet's Autonomous Systems Matthew Roughan, Walter Willinger, Olaf Maennel et al. · IEEE Journal on Selected Areas in Communications Open access Oct 2011 165
3 Evapotranspiration over a Japanese cypress forest. I. Eddy covariance fluxes and surface conductance characteristics for 3 years Yoshiko Kosugi, Satoru Takanashi, Hiroki Tanaka et al. · Journal of Hydrology 5 Feb 2007 99
4 Ispy Zheng Zhang, Ying Zhang, Y. Charlie Hu et al. · ACM SIGCOMM Computer Communication Review 17 Aug 2008 96
5 Scaling in Internet Traffic: A 14 Year and 3 Day Longitudinal Study, With Multiscale Analyses and Random Projections Romain Fontugne, Patrice Abry, Kensuke Fukuda et al. · IEEE/ACM Transactions on Networking 15 Mar 2017 88
All 60 most cited papers, with filters and sorting

Which keywords describe research at IIJ Research Laboratory?

By fractional works in 2022-now, weighted toward what it does more of than the world: Distributed Systems, Legal Regulation, Globalization, Cloud Computing, Human Rights, International Law, Energy Efficiency and Virtualization.

▲ 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-now 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. Globalization5▲ 4.0×11 topics
  2. Distributed Systems4▲ 41×6 topics
  3. Legal Regulation4▲ 26×5 topics
  4. Cloud Computing4▲ 19×3 topics
  5. Human Rights4▲ 5.4×7 topics
  6. Sustainable Development4▲ 3.5×7 topics
  7. Energy Efficiency3▲ 5.7×5 topics
  8. Machine Learning3▲ 1.54×12 topics
  9. International Law3▲ 15×4 topics
  10. Education3▲ 2.6×5 topics
  11. Virtualization3▲ 49×2 topics
  12. Economic Development2▲ 4.6×7 topics
  13. Pedagogy2▲ 7.3×2 topics
  14. Resource Management2▲ 19×2 topics
  15. Criminal Justice2▲ 14×4 topics
  16. Culture2▲ 6.0×3 topics
  17. History2▲ 4.5×3 topics
  18. Anomaly Detection2▲ 10×3 topics
  19. Control Systems2▲ 15×3 topics
  20. Learning2▲ 9.7×2 topics
  21. Social Responsibility2▲ 12×2 topics
  22. Economic Security2▲ 12×1 topic
  23. Strategic Planning2▲ 18×2 topics
  24. Transport Policy2▲ 21×1 topic
  25. Data Centers2▲ 41×1 topic
  26. MapReduce2▲ 41×1 topic
  27. Reform2▲ 37×1 topic
  28. Science2▲ 9.6×2 topics
  29. Student2▲ 202×1 topic
  30. 5G Networks1▲ 11×2 topics
  31. Agricultural Economics1▲ 213×1 topic
  32. Air Force1▲ 18×1 topic
  33. Digital Economy1▲ 10×3 topics
  34. Drug Trafficking1▲ 37×2 topics
  35. Islam1▲ 10×1 topic
  36. Law Enforcement1▲ 36×2 topics
  37. Modernization1▲ 11×1 topic
  38. Rock Mechanics1▲ 21×1 topic
  39. Social Influence1▲ 9.9×1 topic
  40. Soil Treatment1▲ 291×1 topic

Which research topics does IIJ Research Laboratory publish most on?

By volume in 2022-now: Legal and Regulatory Analysis, Cloud Computing and Resource Management, Education and Social Development in Ukraine and Geotechnical and Geomechanical Engineering.

Legal and Regulatory Ana…2Legal and Regulatory Analysis: 2 fractional worksCloud Computing and Reso…2Cloud Computing and Resource Management: 2 fractional worksEducation and Social Development in Ukraine: 2 fractional worksGeotechnical and Geomechanical Engineering: 1 fractional worksLinguistic, Cultural, and Literary Studies: 1 fractional worksMilitary Technology and Strategies: 1 fractional worksMechanical Systems and Engineering: 1 fractional worksDigital Rights Managemen…1Digital Rights Management and Security: 1 fractional worksSecurity and Verification in Computing: 1 fractional worksMaterial Science and Thermodynamics: 1 fractional works
TransportationInformation SystemsEducationMechanics of Materials5 others

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

  1. 1 Legal and Regulatory Analysis Transportation 2 works
  2. 2 Cloud Computing and Resource Management Information Systems 2 works
  3. 3 Education and Social Development in Ukraine Education 2 works
  4. 4 Geotechnical and Geomechanical Engineering Mechanics of Materials 1 works
  5. 5 Linguistic, Cultural, and Literary Studies Sociology and Political Science 1 works
  6. 6 Military Technology and Strategies Aerospace Engineering 1 works
  7. 7 Mechanical Systems and Engineering Renewable Energy, Sustainability and the Environment 1 works
  8. 8 Digital Rights Management and Security Information Systems 1 works
  9. 9 Security and Verification in Computing Artificial Intelligence 1 works
  10. 10 Material Science and Thermodynamics Mechanical Engineering 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 available58.1%not open41.9%

World: 40% of research is openly available.

with international co-authors27.6%domestic only72.4%

World: 18% is written across borders.

How has IIJ Research Laboratory's research output changed?

Output in 2022-2025 was 120% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is IIJ Research Laboratory as a percentage of every work published that year, 0.00022% in 2024.

still counting0.00020%0.00040%0.00060%IIJ Research Laboratory0.00047% in 202519801990200020102020

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

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IIJ Research Laboratory on Science Explorer

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