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Company · London · United Kingdom

BT Group (United Kingdom)

In research, BT Group (United Kingdom) stands highest in Physical Sciences (#8,031 of 10,670 worldwide), 2022-now. Relative to its size it is most specialised in Computer Science (Computer Science is 5.4× its share of world research).

btplc.comROR OpenAlex
World rank, 2022-now
#19,476
of 22,385 · #6,754 all time
Rank in United Kingdom
#706
of 862
Research works
3.5k
▲ 10% vs 2018-21
Citations
49k
14.0 per fractional work
Top-10% rate
11.6%
all institutions 10.0%
vs its own fields
1.04×
1.00× is exactly expected
Open access
6%
world 40%
International
9%
world 18%
BT Group (United Kingdom)

What is BT Group (United Kingdom) known for in research?

The fields where it stands highest, 2022-now, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #8,031 of 10,670 11.8%83 #6508

Each strip is that field's whole ranked pool, with the notch where BT Group (United Kingdom) 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does BT Group (United Kingdom) work in?

In 2022-now, 85% of research at BT Group (United Kingdom) is in Physical Sciences, 12% in Social Sciences. Its largest fields are Computer Science (42%), Engineering (34%), Physics and Astronomy (6%). It does 2.1× the world's share of Physical Sciences.

Physical Sciences: 85 fractional works · 84.9% of its workComputer Science: 42 fractional works · 42.0% of its workComputer Networks and Communications: 12 fractional works · 12.2% of its workArtificial Intelligence: 12 fractional works · 11.9% of its workSignal Processing: 6 fractional works · 5.8% of its workComputer Vision and Pattern Recognition: 5 fractional works · 5.1% of its workInformation Systems: 5 fractional works · 5.1% of its workHuman-Computer Interaction: 1 fractional works · 0.9% of its workComputational Theory and Mathematics: 0 fractional works · 0.5% of its workComputer Science Applications: 0 fractional works · 0.4% of its workEngineering: 35 fractional works · 34.4% of its workElectrical and Electronic Engineering: 18 fractional works · 18.2% of its workAerospace Engineering: 7 fractional works · 7.1% of its workIndustrial and Manufacturing Engineering: 2 fractional works · 1.9% of its workBiomedical Engineering: 1 fractional works · 1.4% of its workSafety, Risk, Reliability and Quality: 1 fractional works · 1.2% of its workControl and Systems Engineering: 1 fractional works · 1.1% of its workMechanical Engineering: 1 fractional works · 1.1% of its workAutomotive Engineering: 1 fractional works · 0.8% of its workOcean Engineering: 1 fractional works · 0.6% of its workMedia Technology: 1 fractional works · 0.6% of its workCivil and Structural Engineering: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workPhysics and Astronomy: 6 fractional works · 5.8% of its workAtomic and Molecular Physics, and Optics: 5 fractional works · 4.8% of its workStatistical and Nonlinear Physics: 1 fractional works · 0.9% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEnvironmental Science: 1 fractional works · 1.0% of its workEnvironmental Engineering: 0 fractional works · 0.3% of its workGlobal and Planetary Change: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.5% of its workMaterials Science: 1 fractional works · 0.8% of its workElectronic, Optical and Magnetic Materials: 0 fractional works · 0.4% of its workMaterials Chemistry: 0 fractional works · 0.4% of its workEarth and Planetary Sciences: 0 fractional works · 0.5% of its workMathematics: 0 fractional works · 0.4% of its workMathematical Physics: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workSocial Sciences: 12 fractional works · 11.7% of its workSocial Sciences: 5 fractional works · 5.0% of its workSociology and Political Science: 2 fractional works · 2.3% of its workPublic Administration: 1 fractional works · 0.6% of its workSafety Research: 0 fractional works · 0.5% of its workCommunication: 0 fractional works · 0.3% of its workEducation: 0 fractional works · 0.3% of its workGeneral Social Sciences: 0 fractional works · 0.3% of its workPolitical Science and International Relations: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.4% of its workBusiness, Management and Accounting: 3 fractional works · 3.0% of its workMarketing: 1 fractional works · 0.9% of its workStrategy and Management: 1 fractional works · 0.8% of its workOrganizational Behavior and Human Resource Management: 1 fractional works · 0.8% of its workManagement Information Systems: 0 fractional works · 0.3% of its workAccounting: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPsychology: 1 fractional works · 1.4% of its workClinical Psychology: 1 fractional works · 0.7% 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 · 1.3% of its workMusic: 0 fractional works · 0.5% of its workHistory: 0 fractional works · 0.4% of its workPhilosophy: 0 fractional works · 0.3% of its workDecision Sciences: 1 fractional works · 0.8% of its workInformation Systems and Management: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.3% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.2% of its workEconomics and Econometrics: 0 fractional works · 0.2% of its workHealth Sciences: 2 fractional works · 1.9% of its workMedicine: 1 fractional works · 1.2% of its workRadiology, Nuclear Medicine and Imaging: 0 fractional works · 0.3% of its workSurgery: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.7% of its workDentistry: 0 fractional works · 0.3% of its workPeriodontics: 0 fractional works · 0.3% of its workNursing: 0 fractional works · 0.2% of its workHealth Professions: 0 fractional works · 0.1% of its workVeterinary: 0 fractional works · 0.1% of its workLife Sciences: 1 fractional works · 1.4% of its workBiochemistry, Genetics and Molecular Biology: 1 fractional works · 0.8% of its workGenetics: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.3% of its workAgricultural and Biological Sciences: 1 fractional works · 0.6% of its workPlant Science: 0 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workALL ITS WORKBT Group (UnitedKingdom)100fractional works, 2022-now
Life Sciences1%Physical Sciences85%Health Sciences2%Social Sciences12%

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 20 fields, with their numbers
    1. Computer Science4242.0%
    2. Engineering3534.4%
    3. Physics and Astronomy65.8%
    4. Environmental Science11.0%
    5. Materials Science10.8%
    6. Earth and Planetary Sciences00.5%
    7. Mathematics00.4%
    1. Social Sciences55.0%
    2. Business, Management and Accounting33.0%
    3. Psychology11.4%
    4. Arts and Humanities11.3%
    5. Decision Sciences10.8%
    6. Economics, Econometrics and Finance00.2%
    1. Medicine11.2%
    2. Dentistry00.3%
    3. Nursing00.2%
    4. Health Professions00.1%
    5. Veterinary00.1%
    1. Biochemistry, Genetics and Molecular Biology10.8%
    2. Agricultural and Biological Sciences10.6%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does BT Group (United Kingdom) specialise in?

Where its research is concentrated relative to its size: Computer Science takes 5.4× the share of its output that it takes of world research.

  1. Computer ScienceField · 42.1 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: 0.14× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.15× its world share, 1 worksBiochemistry, Geneti…Computer Science: 5.39× its world share, 42 worksComputer ScienceEarth and Planetary Sciences: 0.30× its world share, 0 worksEarth and Planetary …Engineering: 2.29× its world share, 35 worksEngineeringEnvironmental Science: 0.21× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.23× its world share, 1 worksMaterials ScienceMathematics: 0.34× its world share, 0 worksMathematicsPhysics and Astronomy: 2.62× its world share, 6 worksPhysics and AstronomyDentistry: 0.68× its world share, 0 worksDentistryHealth Professions: 0.04× its world share, 0 worksHealth ProfessionsMedicine: 0.06× its world share, 1 worksMedicineNursing: 0.34× its world share, 0 worksNursingVeterinary: 0.81× its world share, 0 worksVeterinaryArts and Humanities: 0.44× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.95× its world share, 3 worksBusiness, Management…Decision Sciences: 0.82× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.10× its world share, 0 worksEconomics, Econometr…Psychology: 0.45× its world share, 1 worksPsychologySocial Sciences: 0.40× its world share, 5 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Computer Science, 5.4×. Every wedge is a field page.

All 20 fields, with their numbers
  1. Computer Science5.39×42 works
  2. Physics and Astronomy2.62×6 works
  3. Engineering2.29×35 works
  4. Business, Management and Accounting0.95×3 works
  5. Decision Sciences0.82×1 works
  6. Veterinary0.81×0 works
  7. Dentistry0.68×0 works
  8. Psychology0.45×1 works
  9. Arts and Humanities0.44×1 works
  10. Social Sciences0.40×5 works
  11. Mathematics0.34×0 works
  12. Nursing0.34×0 works
  13. Earth and Planetary Sciences0.30×0 works
  14. Materials Science0.23×1 works
  15. Environmental Science0.21×1 works
  16. Biochemistry, Genetics and Molecular Biology0.15×1 works
  17. Agricultural and Biological Sciences0.14×1 works
  18. Economics, Econometrics and Finance0.10×0 works
  19. Medicine0.06×1 works
  20. Health Professions0.04×0 works

Who are the top researchers at BT Group (United Kingdom)?

Ranked on the quality score, K. J. Blow, James D. Rush and J.R. Armitage lead among researchers whose main affiliation is BT Group (United Kingdom).

  1. 1 K. J. Blow United Kingdom · #1,592,636 worldwide 4k citations · 98 works
  2. 2 James D. Rush United Kingdom · #1,894,898 worldwide 3.9k citations · 124 works
  3. 3 J.R. Armitage United Kingdom · #1,966,075 worldwide 1.3k citations · 30 works
  4. 4 B. James Ainslie United Kingdom · #2,629,953 worldwide 2.7k citations · 100 works
  5. 5 Michael C. Brierley United Kingdom · #2,766,015 worldwide 1.1k citations · 42 works
  6. 6 Jennifer F. Massicott United Kingdom · #2,839,482 worldwide 574 citations · 18 works
  7. 7 Mike G. Burt United Kingdom · #3,015,265 worldwide 2.9k citations · 77 works
  8. 8 David J. Cotter United Kingdom · #3,186,018 worldwide 6.3k citations · 167 works
  9. 9 Richard R. Wyatt United Kingdom · #3,247,287 worldwide 5k citations · 167 works
  10. 10 Nektarios Georgalas United Kingdom · #3,308,813 worldwide 1.8k citations · 85 works
All ranked researchers at BT Group (United Kingdom)

What are the most cited papers from BT Group (United Kingdom)?

The most cited paper from BT Group (United Kingdom) is "Optical waves in crystals" (Matthew Adams, 1984), with 2,428 citations. Next come "Fabrication of photonic crystals for the visible spectrum by holographic lithography" (1,677) and "Nonlinear-optical loop mirror" (1,078).

Most cited papers
#PaperReleasedCitations
1 Optical waves in crystals Matthew Adams · IEEE Journal of Quantum Electronics Nov 1984 2,428
2 Fabrication of photonic crystals for the visible spectrum by holographic lithography M. Campbell, David N. Sharp, Mike T. Harrison et al. · Nature Mar 2000 1,677
3 Nonlinear-optical loop mirror Nick J. Doran, David Christopher Wood · Optics Letters 1988 1,078
4 Network Diversity and Economic Development Nathan Eagle, Michael Macy, Rob Claxton · Science 20 May 2010 791
5 Theoretical description of transient stimulated Raman scattering in optical fibers Keith J. Blow, David Christopher Wood · IEEE Journal of Quantum Electronics 1989 718
All 60 most cited papers, with filters and sorting

Which keywords describe research at BT Group (United Kingdom)?

By fractional works in 2022-now, weighted toward what it does more of than the world: Deep Learning, Machine Learning, Energy Efficiency, Security, IoT Security, Beamforming, Wireless Communications and Wireless Networks.

▲ 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. Deep Learning15▲ 4.2×24 topics
  2. Machine Learning13▲ 3.8×23 topics
  3. Energy Efficiency7▲ 8.0×6 topics
  4. Security6▲ 9.1×8 topics
  5. IoT Security6▲ 19×3 topics
  6. Beamforming6▲ 55×4 topics
  7. Neural Networks5▲ 3.5×13 topics
  8. Wireless Communications4▲ 26×4 topics
  9. Data Mining4▲ 5.8×5 topics
  10. Wireless Networks4▲ 27×8 topics
  11. 5G Networks4▲ 20×4 topics
  12. Channel Modeling4▲ 32×6 topics
  13. Cybersecurity4▲ 15×3 topics
  14. Healthcare4▲ 3.2×6 topics
  15. Anomaly Detection4▲ 13×3 topics
  16. Convolutional Neural Networks4▲ 4.9×4 topics
  17. Antenna4▲ 44×1 topic
  18. Internet of Things4▲ 4.1×5 topics
  19. Microstrip4▲ 44×1 topic
  20. Wireless Communication4▲ 24×4 topics
  21. Audio-Visual Speech Recognition3▲ 63×1 topic
  22. Speech Enhancement3▲ 63×1 topic
  23. Supply Chain Management3▲ 3.5×5 topics
  24. MIMO Systems3▲ 39×3 topics
  25. Massive MIMO3▲ 38×2 topics
  26. Privacy3▲ 11×3 topics
  27. Security Analysis3▲ 17×3 topics
  28. Intrusion Detection3▲ 20×1 topic
  29. Network Security3▲ 22×1 topic
  30. Cellular Networks3▲ 58×1 topic
  31. Deep Neural Networks3▲ 22×3 topics
  32. Interference Alignment3▲ 58×1 topic
  33. IoT3▲ 6.8×5 topics
  34. Security and Privacy3▲ 14×3 topics
  35. Quantum Information2▲ 22×3 topics
  36. Behavioral Analysis2▲ 21×2 topics
  37. Hidden Markov Models2▲ 41×3 topics
  38. Human-Computer Interaction2▲ 13×3 topics
  39. Acoustic Modeling2▲ 60×1 topic
  40. Speaker Verification2▲ 60×1 topic

Which research topics does BT Group (United Kingdom) publish most on?

By volume in 2022-now: Antenna Design and Analysis, Speech and Audio Processing, Network Security and Intrusion Detection and Advanced MIMO Systems Optimization.

Antenna Design and Analy…4Antenna Design and Analysis: 4 fractional worksSpeech and Audio Process…3Speech and Audio Processing: 3 fractional worksNetwork Security and Int…3Network Security and Intrusion Detection: 3 fractional worksAdvanced MIMO Systems Op…3Advanced MIMO Systems Optimization: 3 fractional worksSpeech Recognition and Synthesis: 2 fractional worksAdvanced Optical Network Technologies: 2 fractional worksBlockchain Technology Ap…2Blockchain Technology Applications and Security: 2 fractional worksAdvanced Malware Detection Techniques: 2 fractional worksBluetooth and Wireless Communication Technologies: 2 fractional worksAdvanced Wireless Commun…2Advanced Wireless Communication Technologies: 2 fractional works
Aerospace EngineeringSignal ProcessingComputer Networks and CommunicationsElectrical and Electronic Engineering2 others

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

  1. 1 Antenna Design and Analysis Aerospace Engineering 4 works
  2. 2 Speech and Audio Processing Signal Processing 3 works
  3. 3 Network Security and Intrusion Detection Computer Networks and Communications 3 works
  4. 4 Advanced MIMO Systems Optimization Electrical and Electronic Engineering 3 works
  5. 5 Speech Recognition and Synthesis Artificial Intelligence 2 works
  6. 6 Advanced Optical Network Technologies Electrical and Electronic Engineering 2 works
  7. 7 Blockchain Technology Applications and Security Information Systems 2 works
  8. 8 Advanced Malware Detection Techniques Signal Processing 2 works
  9. 9 Bluetooth and Wireless Communication Technologies Computer Networks and Communications 2 works
  10. 10 Advanced Wireless Communication Technologies Electrical and Electronic Engineering 2 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 available6.5%not open93.5%

World: 40% of research is openly available.

with international co-authors8.8%domestic only91.2%

World: 18% is written across borders.

How has BT Group (United Kingdom)'s research output changed?

Output in 2022-2025 was 10% 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 BT Group (United Kingdom) as a percentage of every work published that year, 0.00063% in 2024.

still counting0.020%0.040%0.060%BT Group (United Kingdom)0.00037% in 202519801990200020102020

Fractional works of BT Group (United Kingdom) over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%BT Group (United Kingdom)10.7% in 2025all institutions10.0% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 14.3% in 1994.

Other research institutions in London

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BT Group (United Kingdom) on Science Explorer

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