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Company · Madrid · Spain

Telefonica Research and Development

In research, Telefonica Research and Development stands highest in Physical Sciences (#4,234 of 10,670 worldwide) and Computer Science (#2,014 of 4,417 worldwide), 2022-now. Relative to its size it is most specialised in Computer Networks and Communications, Computer Science and Electrical and Electronic Engineering (Computer Networks and Communications is 25.2× its share of world research).

tid.esROR OpenAlex
World rank, 2022-now
#13,050
of 22,385 · #5,627 all time
Rank in Spain
#251
of 426
Research works
1.3k
▲ 36% vs 2018-21
Citations
26k
20.8 per fractional work
Top-10% rate
12.9%
all institutions 10.0%
vs its own fields
1.07×
1.00× is exactly expected
Open access
33%
world 40%
International
40%
world 18%
Telefonica Research and Development

What is Telefonica Research and Development 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 #4,234 of 10,670 13.5%138 #2740
Computer ScienceField #2,014 of 4,417 12.5%81 #1144

Each strip is that field's whole ranked pool, with the notch where Telefonica Research and Development 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 Telefonica Research and Development work in?

In 2022-now, 87% of research at Telefonica Research and Development is in Physical Sciences, 10% in Social Sciences. Its largest fields are Computer Science (51%), Engineering (32%), Social Sciences (7%). It does 2.2× the world's share of Physical Sciences.

Physical Sciences: 158 fractional works · 86.9% of its workComputer Science: 93 fractional works · 51.5% of its workComputer Networks and Communications: 41 fractional works · 22.5% of its workArtificial Intelligence: 25 fractional works · 13.6% of its workInformation Systems: 12 fractional works · 6.8% of its workComputer Vision and Pattern Recognition: 6 fractional works · 3.3% of its workSignal Processing: 4 fractional works · 2.4% of its workHardware and Architecture: 2 fractional works · 0.9% of its workComputational Theory and Mathematics: 2 fractional works · 0.9% of its workHuman-Computer Interaction: 1 fractional works · 0.4% of its workComputer Science Applications: 1 fractional works · 0.4% of its workSoftware: 1 fractional works · 0.3% of its workEngineering: 58 fractional works · 32.1% of its workElectrical and Electronic Engineering: 42 fractional works · 23.0% of its workControl and Systems Engineering: 4 fractional works · 2.0% of its workIndustrial and Manufacturing Engineering: 3 fractional works · 1.9% of its workAerospace Engineering: 3 fractional works · 1.6% of its workMedia Technology: 2 fractional works · 1.2% of its workBiomedical Engineering: 2 fractional works · 1.0% of its workBuilding and Construction: 1 fractional works · 0.6% of its workMechanical Engineering: 1 fractional works · 0.3% of its workSafety, Risk, Reliability and Quality: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workPhysics and Astronomy: 4 fractional works · 2.4% of its workAtomic and Molecular Physics, and Optics: 1 fractional works · 0.8% of its workNuclear and High Energy Physics: 1 fractional works · 0.7% of its workAstronomy and Astrophysics: 1 fractional works · 0.6% of its workStatistical and Nonlinear Physics: 1 fractional works · 0.4% of its workEnvironmental Science: 1 fractional works · 0.4% of its workHealth, Toxicology and Mutagenesis: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMathematics: 0 fractional works · 0.2% of its workMaterials Science: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 0 fractional works · 0.1% of its workSocial Sciences: 18 fractional works · 9.8% of its workSocial Sciences: 12 fractional works · 6.5% of its workSociology and Political Science: 7 fractional works · 3.6% of its workTransportation: 2 fractional works · 1.2% of its workCommunication: 1 fractional works · 0.6% of its workGeneral Social Sciences: 0 fractional works · 0.2% of its workLaw: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.7% of its workBusiness, Management and Accounting: 2 fractional works · 1.4% of its workManagement Information Systems: 1 fractional works · 0.7% of its workMarketing: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.3% of its workDecision Sciences: 2 fractional works · 1.1% of its workManagement Science and Operations Research: 1 fractional works · 0.6% of its workInformation Systems and Management: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPsychology: 1 fractional works · 0.6% of its workSocial Psychology: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.3% of its workArts and Humanities: 0 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.1% of its workLife Sciences: 3 fractional works · 1.9% of its workAgricultural and Biological Sciences: 2 fractional works · 1.0% of its workGeneral Agricultural and Biological Sciences: 1 fractional works · 0.4% of its workSoil Science: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNeuroscience: 1 fractional works · 0.6% of its workCognitive Neuroscience: 1 fractional works · 0.6% of its workBiochemistry, Genetics and Molecular Biology: 0 fractional works · 0.3% of its workMolecular Biology: 0 fractional works · 0.3% of its workHealth Sciences: 2 fractional works · 1.4% of its workMedicine: 1 fractional works · 0.7% of its workHealth Professions: 1 fractional works · 0.4% of its workDentistry: 0 fractional works · 0.3% of its workOral Surgery: 0 fractional works · 0.3% of its workALL ITS WORKTelefonicaResearch and…181fractional works, 2022-now
Life Sciences2%Physical Sciences87%Health Sciences1%Social Sciences10%

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 Science9351.5%
    2. Engineering5832.1%
    3. Physics and Astronomy42.4%
    4. Environmental Science10.4%
    5. Mathematics00.2%
    6. Materials Science00.2%
    7. Earth and Planetary Sciences00.1%
    1. Social Sciences126.5%
    2. Business, Management and Accounting21.4%
    3. Decision Sciences21.1%
    4. Psychology10.6%
    5. Arts and Humanities00.1%
    6. Economics, Econometrics and Finance00.1%
    1. Agricultural and Biological Sciences21.0%
    2. Neuroscience10.6%
    3. Biochemistry, Genetics and Molecular Biology00.3%
    4. Immunology and Microbiology00.0%
    1. Medicine10.7%
    2. Health Professions10.4%
    3. Dentistry00.3%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Telefonica Research and Development specialise in?

Where its research is concentrated relative to its size: Computer Networks and Communications takes 25.2× the share of its output that it takes of world research.

  1. Computer Networks and CommunicationsSubfield · 40.8 works25×
  2. Computer ScienceField · 93.4 works6.6×
  3. Electrical and Electronic EngineeringSubfield · 41.8 works6.5×
  4. Artificial IntelligenceSubfield · 24.7 works5.6×
← 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: 0.21× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.05× its world share, 0 worksBiochemistry, Geneti…Immunology and Microbiology: 0.02× its world share, 0 worksImmunology and Micro…Neuroscience: 0.37× its world share, 1 worksNeuroscienceComputer Science: 6.62× its world share, 93 worksComputer ScienceEarth and Planetary Sciences: 0.09× its world share, 0 worksEarth and Planetary …Engineering: 2.14× its world share, 58 worksEngineeringEnvironmental Science: 0.09× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.04× its world share, 0 worksMaterials ScienceMathematics: 0.15× its world share, 0 worksMathematicsPhysics and Astronomy: 1.09× its world share, 4 worksPhysics and AstronomyDentistry: 0.57× its world share, 0 worksDentistryHealth Professions: 0.15× its world share, 1 worksHealth ProfessionsMedicine: 0.04× its world share, 1 worksMedicineArts and Humanities: 0.05× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.42× its world share, 2 worksBusiness, Management…Decision Sciences: 1.16× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.04× its world share, 0 worksEconomics, Econometr…Psychology: 0.19× its world share, 1 worksPsychologySocial Sciences: 0.52× its world share, 12 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Computer Science, 6.6×. Every wedge is a field page.

All 20 fields, with their numbers
  1. Computer Science6.62×93 works
  2. Engineering2.14×58 works
  3. Decision Sciences1.16×2 works
  4. Physics and Astronomy1.09×4 works
  5. Dentistry0.57×0 works
  6. Social Sciences0.52×12 works
  7. Business, Management and Accounting0.42×2 works
  8. Neuroscience0.37×1 works
  9. Agricultural and Biological Sciences0.21×2 works
  10. Psychology0.19×1 works
  11. Mathematics0.15×0 works
  12. Health Professions0.15×1 works
  13. Earth and Planetary Sciences0.09×0 works
  14. Environmental Science0.09×1 works
  15. Biochemistry, Genetics and Molecular Biology0.05×0 works
  16. Arts and Humanities0.05×0 works
  17. Materials Science0.04×0 works
  18. Medicine0.04×1 works
  19. Economics, Econometrics and Finance0.04×0 works
  20. Immunology and Microbiology0.02×0 works

Who are the top researchers at Telefonica Research and Development?

Ranked on the quality score, Alexandros Karatzoglou, Nuria Oliver and Ilias Leontiadis lead among researchers whose main affiliation is Telefonica Research and Development.

  1. 1 Alexandros Karatzoglou Spain · #74,057 worldwide 11k citations · 132 works
  2. 2 Nuria Oliver Spain · #87,741 worldwide 15k citations · 283 works
  3. 3 Ilias Leontiadis Spain · #116,561 worldwide 4.9k citations · 117 works
  4. 4 Linas Baltrunas Spain · #152,686 worldwide 4.7k citations · 48 works
  5. 5 Vijay Erramilli Spain · #173,720 worldwide 2.2k citations · 41 works
  6. 6 Karen Church Spain · #194,407 worldwide 2.4k citations · 48 works
  7. 7 Ioannis Arapakis Spain · #269,835 worldwide 2.5k citations · 95 works
  8. 8 Georgos Siganos Spain · #304,117 worldwide 1.4k citations · 26 works
  9. 9 Josep M. Pujol Spain · #305,764 worldwide 8.3k citations · 46 works
  10. 10 Pablo Rodríguez Spain · #316,418 worldwide 8.7k citations · 176 works
All ranked researchers at Telefonica Research and Development

What are the most cited papers from Telefonica Research and Development?

The most cited paper from Telefonica Research and Development is "Explainable Artificial Intelligence (XAI): Concepts, taxonomies, opportunities and challenges toward responsible AI" (Alejandro Barredo Arrieta, Natalia Díaz-Rodríguez, Javier Del Ser et al., 2019), with 10,008 citations. Next come "A break in the clouds" (2,598) and "I tube, you tube, everybody tubes" (1,603).

Most cited papers
#PaperReleasedCitations
1 Explainable Artificial Intelligence (XAI): Concepts, taxonomies, opportunities and challenges toward responsible AI Alejandro Barredo Arrieta, Natalia Díaz-Rodríguez, Javier Del Ser et al. · Information Fusion Open access 26 Dec 2019 10,008
2 A break in the clouds Luis M. Vaquero, Luis Rodero‐Merino, Juan Cáceres et al. · ACM SIGCOMM Computer Communication Review Open access 31 Dec 2008 2,598
3 I tube, you tube, everybody tubes Meeyoung Cha, Haewoon Kwak, Pablo Rodríguez et al. Conference paperOpen access 24 Oct 2007 1,603
4 Recurrent Neural Networks with Top-k Gains for Session-based Recommendations Balázs Hidasi, Alexandros Karatzoglou Conference paperOpen access 17 Oct 2018 961
5 Network Slicing for 5G with SDN/NFV: Concepts, Architectures, and Challenges José Ordoñez-Lucena, Pablo Ameigeiras, Diego R. Lopez et al. · IEEE Communications Magazine Open access May 2017 843
All 60 most cited papers, with filters and sorting

Which keywords describe research at Telefonica Research and Development?

By fractional works in 2022-now, weighted toward what it does more of than the world: Deep Learning, 5G Networks, Energy Efficiency, Machine Learning, Internet of Things, IoT Security, Network Virtualization and Software-Defined Networking.

▲ 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 Learning28▲ 4.5×30 topics
  2. Machine Learning23▲ 3.9×30 topics
  3. 5G Networks21▲ 57×5 topics
  4. Energy Efficiency20▲ 12×8 topics
  5. Internet of Things14▲ 9.3×12 topics
  6. IoT Security14▲ 25×3 topics
  7. Network Virtualization12▲ 181×1 topic
  8. Software-Defined Networking12▲ 181×1 topic
  9. Wireless Networks11▲ 42×8 topics
  10. Security11▲ 8.8×13 topics
  11. Healthcare10▲ 4.8×6 topics
  12. Security and Privacy10▲ 29×3 topics
  13. Big Data9▲ 5.1×14 topics
  14. Mobile Edge Computing9▲ 31×2 topics
  15. Data Mining8▲ 6.3×6 topics
  16. Elastic Optical Networks8▲ 288×1 topic
  17. Optical Networks8▲ 288×1 topic
  18. Neural Networks8▲ 2.8×17 topics
  19. Smart Cities8▲ 16×3 topics
  20. Edge Computing8▲ 32×2 topics
  21. Fog Computing8▲ 36×1 topic
  22. Massive MIMO7▲ 46×3 topics
  23. MIMO Systems7▲ 46×2 topics
  24. Cybersecurity6▲ 14×4 topics
  25. Digital Signal Processing6▲ 69×2 topics
  26. Channel Modeling6▲ 27×4 topics
  27. Optical Fiber6▲ 30×2 topics
  28. Coherent Detection6▲ 74×1 topic
  29. Nonlinear Effects6▲ 74×1 topic
  30. Anomaly Detection6▲ 11×3 topics
  31. Heterogeneous Networks5▲ 29×2 topics
  32. Microwave Photonics5▲ 35×1 topic
  33. Photonic Signal Processing5▲ 92×1 topic
  34. 5G5▲ 48×3 topics
  35. Spectral Efficiency5▲ 43×2 topics
  36. Cellular Networks5▲ 56×1 topic
  37. Cyber-Physical Systems5▲ 10×2 topics
  38. Interference Alignment5▲ 56×1 topic
  39. Cloud Computing4▲ 8.6×5 topics
  40. Privacy4▲ 8.5×5 topics

Which research topics does Telefonica Research and Development publish most on?

By volume in 2022-now: Software-Defined Networks and 5G, Advanced Optical Network Technologies, IoT and Edge/Fog Computing and Optical Network Technologies.

Software-Defined Network…12Software-Defined Networks and 5G: 12 fractional worksAdvanced Optical Network Technologies: 8 fractional worksIoT and Edge/Fog Computing8IoT and Edge/Fog Computing: 8 fractional worksOptical Network Technolo…6Optical Network Technologies: 6 fractional worksAdvanced Photonic Communication Systems: 5 fractional worksAdvanced MIMO Systems Optimization: 5 fractional worksNetwork Security and Int…4Network Security and Intrusion Detection: 4 fractional worksDigital Transformation in Industry: 4 fractional worksPrivacy-Preserving Technologies in Data: 3 fractional worksAdvanced Wireless Communication Technologies: 3 fractional works
Computer Networks and CommunicationsElectrical and Electronic EngineeringIndustrial and Manufacturing EngineeringArtificial Intelligence

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

  1. 1 Software-Defined Networks and 5G Computer Networks and Communications 12 works
  2. 2 Advanced Optical Network Technologies Electrical and Electronic Engineering 8 works
  3. 3 IoT and Edge/Fog Computing Computer Networks and Communications 8 works
  4. 4 Optical Network Technologies Electrical and Electronic Engineering 6 works
  5. 5 Advanced Photonic Communication Systems Electrical and Electronic Engineering 5 works
  6. 6 Advanced MIMO Systems Optimization Electrical and Electronic Engineering 5 works
  7. 7 Network Security and Intrusion Detection Computer Networks and Communications 4 works
  8. 8 Digital Transformation in Industry Industrial and Manufacturing Engineering 4 works
  9. 9 Privacy-Preserving Technologies in Data Artificial Intelligence 3 works
  10. 10 Advanced Wireless Communication Technologies Electrical and Electronic Engineering 3 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 available33.3%not open66.7%

World: 40% of research is openly available.

with international co-authors39.9%domestic only60.1%

World: 18% is written across borders.

How has Telefonica Research and Development's research output changed?

Output in 2022-2025 was 36% 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 Telefonica Research and Development as a percentage of every work published that year, 0.00072% in 2024.

still counting0.0020%0.0040%Telefonica Research and Development0.00081% in 202519801990200020102020

Fractional works of Telefonica Research and Development 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 counting10%20%all institutions10.0% in 2025Telefonica Research and Development9.9% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 19.6% in 2012.

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Telefonica Research and Development on Science Explorer

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