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Company · Marousi · Greece

Hellenic Telecommunications Organization (Greece)

In research, Hellenic Telecommunications Organization (Greece) stands highest in Physical Sciences (#12,922 of 17,446 worldwide), over all time.

ote.gr/web/guestROR OpenAlex
World rank, all time
#18,759
of 34,923
Rank in Greece
#89
of 190
Research works
282
▲ 26% vs 2018-21
Citations
2.8k
10.0 per fractional work
Top-10% rate
9.8%
all institutions 10.0%
vs its own fields
0.98×
1.00× is exactly expected
Open access
37%
world 40%
International
32%
world 18%
Hellenic Telecommunications Organization (Greece)

What is Hellenic Telecommunications Organization (Greece) known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #12,922 of 17,446 5.2%196

Each strip is that field's whole ranked pool, with the notch where Hellenic Telecommunications Organization (Greece) 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 Hellenic Telecommunications Organization (Greece) work in?

In 2022-now, 69% of research at Hellenic Telecommunications Organization (Greece) is in Physical Sciences, 11% in Social Sciences. Its largest fields are Engineering (32%), Computer Science (28%), Agricultural and Biological Sciences (7%). It does 1.7× the world's share of Physical Sciences.

Physical Sciences: 33 fractional works · 68.5% of its workEngineering: 15 fractional works · 31.8% of its workElectrical and Electronic Engineering: 8 fractional works · 16.2% of its workAerospace Engineering: 2 fractional works · 4.2% of its workControl and Systems Engineering: 2 fractional works · 3.4% of its workIndustrial and Manufacturing Engineering: 1 fractional works · 2.4% of its workMedia Technology: 1 fractional works · 2.2% of its workMechanical Engineering: 0 fractional works · 0.9% of its workOcean Engineering: 0 fractional works · 0.7% of its workBiomedical Engineering: 0 fractional works · 0.5% of its workBuilding and Construction: 0 fractional works · 0.5% of its workMechanics of Materials: 0 fractional works · 0.4% of its workSafety, Risk, Reliability and Quality: 0 fractional works · 0.2% of its workComputer Science: 14 fractional works · 28.0% of its workComputer Networks and Communications: 7 fractional works · 13.9% of its workArtificial Intelligence: 2 fractional works · 4.8% of its workInformation Systems: 2 fractional works · 4.4% of its workSignal Processing: 1 fractional works · 2.0% of its workComputer Vision and Pattern Recognition: 1 fractional works · 1.4% of its workHuman-Computer Interaction: 0 fractional works · 0.9% of its workComputational Theory and Mathematics: 0 fractional works · 0.5% of its workEnvironmental Science: 2 fractional works · 4.4% of its workEnvironmental Chemistry: 1 fractional works · 1.1% of its workEcology: 0 fractional works · 0.9% of its workGlobal and Planetary Change: 0 fractional works · 0.8% of its workNature and Landscape Conservation: 0 fractional works · 0.8% of its workHealth, Toxicology and Mutagenesis: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.4% of its workMaterials Science: 1 fractional works · 1.3% of its workMaterials Chemistry: 1 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 1 fractional works · 1.2% of its workOceanography: 1 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPhysics and Astronomy: 1 fractional works · 1.1% of its workAstronomy and Astrophysics: 0 fractional works · 0.6% of its workNuclear and High Energy Physics: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEnergy: 0 fractional works · 0.4% of its workEnergy Engineering and Power Technology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workChemistry: 0 fractional works · 0.4% of its workSpectroscopy: 0 fractional works · 0.4% of its workSocial Sciences: 5 fractional works · 11.4% of its workSocial Sciences: 2 fractional works · 4.8% of its workSociology and Political Science: 2 fractional works · 3.6% of its workEducation: 0 fractional works · 0.4% of its workDemography: 0 fractional works · 0.2% of its workGender Studies: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workBusiness, Management and Accounting: 2 fractional works · 3.8% of its workManagement Information Systems: 1 fractional works · 1.8% of its workManagement of Technology and Innovation: 0 fractional works · 0.8% of its workStrategy and Management: 0 fractional works · 0.5% of its workOrganizational Behavior and Human Resource Management: 0 fractional works · 0.4% of its workTourism, Leisure and Hospitality Management: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workDecision Sciences: 1 fractional works · 1.9% of its workInformation Systems and Management: 0 fractional works · 1.0% of its workManagement Science and Operations Research: 0 fractional works · 0.9% of its workPsychology: 0 fractional works · 0.5% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.3% of its workEconomics and Econometrics: 0 fractional works · 0.3% of its workLife Sciences: 5 fractional works · 11.2% of its workAgricultural and Biological Sciences: 3 fractional works · 6.8% of its workPlant Science: 2 fractional works · 3.2% of its workFood Science: 0 fractional works · 0.7% of its workInsect Science: 0 fractional works · 0.7% of its workGeneral Agricultural and Biological Sciences: 0 fractional works · 0.7% of its workEcology, Evolution, Behavior and Systematics: 0 fractional works · 0.6% of its workAgronomy and Crop Science: 0 fractional works · 0.5% of its workAquatic Science: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workBiochemistry, Genetics and Molecular Biology: 2 fractional works · 3.4% of its workMolecular Biology: 1 fractional works · 1.9% of its workGenetics: 0 fractional works · 0.6% of its workBiotechnology: 0 fractional works · 0.5% of its workCancer Research: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workImmunology and Microbiology: 0 fractional works · 0.8% of its workParasitology: 0 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNeuroscience: 0 fractional works · 0.1% of its workHealth Sciences: 4 fractional works · 8.9% of its workMedicine: 3 fractional works · 6.3% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 1.1% of its workEndocrinology, Diabetes and Metabolism: 0 fractional works · 1.0% of its workPharmacology: 0 fractional works · 0.8% of its workEpidemiology: 0 fractional works · 0.7% of its workPhysiology: 0 fractional works · 0.5% of its workCardiology and Cardiovascular Medicine: 0 fractional works · 0.4% of its workEmergency Medicine: 0 fractional works · 0.4% of its workGenetics: 0 fractional works · 0.4% of its workPediatrics, Perinatology and Child Health: 0 fractional works · 0.3% of its workRadiology, Nuclear Medicine and Imaging: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.6% of its workHealth Professions: 1 fractional works · 1.3% of its workEmergency Medical Services: 0 fractional works · 0.4% of its workGeneral Health Professions: 0 fractional works · 0.3% of its workRadiological and Ultrasound Technology: 0 fractional works · 0.2% of its workOccupational Therapy: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workDentistry: 0 fractional works · 0.7% of its workOral Surgery: 0 fractional works · 0.7% of its workVeterinary: 0 fractional works · 0.6% of its workSmall Animals: 0 fractional works · 0.6% of its workNursing: 0 fractional works · 0.1% of its workALL ITS WORKHellenicTelecommunicatio…48fractional works, 2022-now
Life Sciences11%Physical Sciences69%Health Sciences9%Social Sciences11%

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 22 fields, with their numbers
    1. Engineering1531.8%
    2. Computer Science1428.0%
    3. Environmental Science24.4%
    4. Materials Science11.3%
    5. Earth and Planetary Sciences11.2%
    6. Physics and Astronomy11.1%
    7. Energy00.4%
    8. Chemistry00.4%
    1. Social Sciences24.8%
    2. Business, Management and Accounting23.8%
    3. Decision Sciences11.9%
    4. Psychology00.5%
    5. Economics, Econometrics and Finance00.3%
    1. Agricultural and Biological Sciences36.8%
    2. Biochemistry, Genetics and Molecular Biology23.4%
    3. Immunology and Microbiology00.8%
    4. Neuroscience00.1%
    1. Medicine36.3%
    2. Health Professions11.3%
    3. Dentistry00.7%
    4. Veterinary00.6%
    5. Nursing00.1%
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: 1.44× its world share, 3 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.65× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 0.79× its world share, 0 worksImmunology and Micro…Neuroscience: 0.06× its world share, 0 worksNeuroscienceChemistry: 0.22× its world share, 0 worksChemistryComputer Science: 3.60× its world share, 14 worksComputer ScienceEarth and Planetary Sciences: 0.79× its world share, 1 worksEarth and Planetary …Energy: 0.40× its world share, 0 worksEnergyEngineering: 2.12× its world share, 15 worksEngineeringEnvironmental Science: 0.89× its world share, 2 worksEnvironmental ScienceMaterials Science: 0.37× its world share, 1 worksMaterials SciencePhysics and Astronomy: 0.49× its world share, 0 worksPhysics and AstronomyDentistry: 1.42× its world share, 0 worksDentistryHealth Professions: 0.50× its world share, 1 worksHealth ProfessionsMedicine: 0.33× its world share, 3 worksMedicineNursing: 0.24× its world share, 0 worksNursingVeterinary: 4.11× its world share, 0 worksVeterinaryBusiness, Management and Accounting: 1.18× its world share, 2 worksBusiness, Management…Decision Sciences: 2.01× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.14× its world share, 0 worksEconomics, Econometr…Psychology: 0.16× its world share, 0 worksPsychologySocial Sciences: 0.38× its world share, 2 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Veterinary, 4.1×. Every wedge is a field page.

All 22 fields, with their numbers
  1. Veterinary4.11×0 works
  2. Computer Science3.60×14 works
  3. Engineering2.12×15 works
  4. Decision Sciences2.01×1 works
  5. Agricultural and Biological Sciences1.44×3 works
  6. Dentistry1.42×0 works
  7. Business, Management and Accounting1.18×2 works
  8. Environmental Science0.89×2 works
  9. Immunology and Microbiology0.79×0 works
  10. Earth and Planetary Sciences0.79×1 works
  11. Biochemistry, Genetics and Molecular Biology0.65×2 works
  12. Health Professions0.50×1 works
  13. Physics and Astronomy0.49×0 works
  14. Energy0.40×0 works
  15. Social Sciences0.38×2 works
  16. Materials Science0.37×1 works
  17. Medicine0.33×3 works
  18. Nursing0.24×0 works
  19. Chemistry0.22×0 works
  20. Psychology0.16×0 works
  21. Economics, Econometrics and Finance0.14×0 works
  22. Neuroscience0.06×0 works

Who are the top researchers at Hellenic Telecommunications Organization (Greece)?

Ranked on the quality score, Stergios P. Chochliouros, Anastasia S. Spiliopoulou-Chochliourou and Christos A. Gizelis lead among researchers whose main affiliation is Hellenic Telecommunications Organization (Greece).

  1. 1 Stergios P. Chochliouros Greece · #2,877,501 worldwide 6 citations · 17 works
  2. 2 Anastasia S. Spiliopoulou-Chochliourou Greece · #3,053,049 worldwide 7 citations · 15 works
  3. 3 Christos A. Gizelis Greece · #3,735,730 worldwide 77 citations · 25 works
  4. 4 Tilemachos D. Doukoglou Greece · #3,856,428 worldwide 273 citations · 31 works
  5. 5 Christos P. Baloglou Greece · #3,927,670 worldwide 65 citations · 28 works
  6. 6 Claus Keuker Greece · #4,139,923 worldwide 10 citations · 15 works
  7. 7 Ioannis M. Stephanakis Greece · #4,306,049 worldwide 211 citations · 31 works
  8. 8 George S. Agapiou Greece · #4,392,969 worldwide 717 citations · 80 works
  9. 9 Evangelos Sfakianakis Greece · #4,450,271 worldwide 441 citations · 44 works
  10. 10 Christina C. Lessi Greece · #4,558,088 worldwide 96 citations · 27 works
All ranked researchers at Hellenic Telecommunications Organization (Greece)

What are the most cited papers from Hellenic Telecommunications Organization (Greece)?

The most cited paper from Hellenic Telecommunications Organization (Greece) is "Cardiovascular response to mental stress in normal adolescents with hypertensive parents. Hemodynamics and mental stress in adolescents." (Bonita E. Falkner, Gaddo Onesti, EVANGELOS T. ANGELAKOS et al., 1979), with 402 citations. Next come "Optimum Design of the Current-Source Flyback Inverter for Decentralized Grid-Connected Photovoltaic Systems" (267) and "Cardiovascular characteristics in adolescents who develop essential hypertension." (242).

Most cited papers
#PaperReleasedCitations
1 Cardiovascular response to mental stress in normal adolescents with hypertensive parents. Hemodynamics and mental stress in adolescents. Bonita E. Falkner, Gaddo Onesti, EVANGELOS T. ANGELAKOS et al. · Hypertension Open access 1979 402
2 Optimum Design of the Current-Source Flyback Inverter for Decentralized Grid-Connected Photovoltaic Systems Anastasios Ch. Kyritsis, Emmanuel C. Tatakis, Nick Peter Papanikolaou · IEEE Transactions on Energy Conversion 21 Feb 2008 267
3 Cardiovascular characteristics in adolescents who develop essential hypertension. Bonita E. Falkner, HARVEY W. KUSHNER, Gaddo Onesti et al. · Hypertension Open access Sep 1981 242
4 Technology pillars in the architecture of future 5G mobile networks: NFV, MEC and SDN Bego Blanco, José Oscar Fajardo, Ioannis Giannoulakis et al. · Computer Standards & Interfaces Open access 5 Jan 2017 221
5 Forecasting football results and the efficiency of fixed‐odds betting John A. Goddard, Ioannis G. Asimakopoulos · Journal of Forecasting 2004 198
All 62 most cited papers, with filters and sorting

Which keywords describe research at Hellenic Telecommunications Organization (Greece)?

By fractional works in 2022-now, weighted toward what it does more of than the world: Internet of Things, Energy Efficiency, 5G Networks, Deep Learning, Healthcare, IoT Security, Mobile Edge Computing and Security and Privacy.

▲ 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 Learning5▲ 3.2×19 topics
  2. Internet of Things4▲ 11×7 topics
  3. 5G Networks4▲ 46×4 topics
  4. Energy Efficiency4▲ 9.9×9 topics
  5. Healthcare4▲ 6.5×5 topics
  6. IoT Security3▲ 20×3 topics
  7. Mobile Edge Computing3▲ 38×2 topics
  8. Security and Privacy3▲ 32×2 topics
  9. Smart Cities3▲ 21×3 topics
  10. Edge Computing3▲ 42×2 topics
  11. Machine Learning3▲ 1.62×14 topics
  12. Big Data2▲ 5.5×7 topics
  13. Fog Computing2▲ 46×1 topic
  14. Supply Chain Management2▲ 5.7×3 topics
  15. Sustainability2▲ 2.0×8 topics
  16. Climate Change2▲ 1.76×15 topics
  17. Wireless Communication2▲ 31×3 topics
  18. Security2▲ 6.6×6 topics
  19. Cyber-Physical Systems2▲ 14×3 topics
  20. Massive MIMO2▲ 45×3 topics
  21. MIMO Systems2▲ 42×3 topics
  22. Channel Estimation2▲ 36×2 topics
  23. Privacy2▲ 10×2 topics
  24. Epidemiology1▼ 0.71×12 topics
  25. Intelligent Reflecting Surfaces1▲ 73×1 topic
  26. Non-Orthogonal Multiple Access1▲ 73×1 topic
  27. Sustainable Development1▲ 1.80×6 topics
  28. Distributed Systems1▲ 15×6 topics
  29. Economic Growth1▲ 3.1×3 topics
  30. Neural Networks1▲ 1.64×5 topics
  31. Smart Grid1▲ 6.8×4 topics
  32. Network Virtualization1▲ 63×1 topic
  33. Public Health1▲ 1.56×9 topics
  34. Software-Defined Networking1▲ 63×1 topic
  35. Wireless Communications1▲ 13×3 topics
  36. Wireless Sensor Networks1▲ 5.3×5 topics
  37. Agricultural Development1▲ 14×1 topic
  38. Biodiversity1▲ 2.7×7 topics
  39. IoT1▲ 5.7×4 topics
  40. Rural Revitalization1▲ 70×1 topic

Which research topics does Hellenic Telecommunications Organization (Greece) publish most on?

By volume in 2022-now: IoT and Edge/Fog Computing, Advanced Wireless Communication Technologies, Software-Defined Networks and 5G and Regional Development and Environment.

IoT and Edge/Fog Computing2IoT and Edge/Fog Computing: 2 fractional worksAdvanced Wireless Communication Technologies: 1 fractional worksSoftware-Defined Networks and 5G: 1 fractional worksRegional Development and Environment: 1 fractional worksDigital Transformation in Industry: 1 fractional worksAdvanced MIMO Systems Optimization: 1 fractional worksBig Data and Business In…1Big Data and Business Intelligence: 1 fractional worksTelecommunications and Broadcasting Technologies: 1 fractional worksIoT Networks and Protocols: 1 fractional worksAdvanced Photonic Communication Systems: 1 fractional works
Computer Networks and CommunicationsElectrical and Electronic EngineeringSociology and Political ScienceIndustrial and Manufacturing Engineering2 others

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

  1. 1 IoT and Edge/Fog Computing Computer Networks and Communications 2 works
  2. 2 Advanced Wireless Communication Technologies Electrical and Electronic Engineering 1 works
  3. 3 Software-Defined Networks and 5G Computer Networks and Communications 1 works
  4. 4 Regional Development and Environment Sociology and Political Science 1 works
  5. 5 Digital Transformation in Industry Industrial and Manufacturing Engineering 1 works
  6. 6 Advanced MIMO Systems Optimization Electrical and Electronic Engineering 1 works
  7. 7 Big Data and Business Intelligence Management Information Systems 1 works
  8. 8 Telecommunications and Broadcasting Technologies Media Technology 1 works
  9. 9 IoT Networks and Protocols Electrical and Electronic Engineering 1 works
  10. 10 Advanced Photonic Communication Systems Electrical and Electronic 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 available37.0%not open63.0%

World: 40% of research is openly available.

with international co-authors31.9%domestic only68.1%

World: 18% is written across borders.

How has Hellenic Telecommunications Organization (Greece)'s research output changed?

Output in 2022-2025 was 26% 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 Hellenic Telecommunications Organization (Greece) as a percentage of every work published that year, 0.00026% in 2024.

still counting0.00050%0.0010%Hellenic Telecommunications Organization (Greece)0.00025% in 202519801990200020102020

Fractional works of Hellenic Telecommunications Organization (Greece) over all fractional works that year. How the balance of science has shifted.

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