World's Best Scientists 2026 revealed!

D-Index & Metrics

Computer Science

D-Index
56
Citations
13289
World Ranking
4056
National Ranking
16

Stefanos Kollias publication distribution in Computer Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Computer Science in 2026. The highlighted bar marks where Stefanos Kollias sits on this spectrum.

32–41 publications: 7 scientists 42–51 publications: 22 scientists 52–61 publications: 82 scientists 62–71 publications: 134 scientists 72–81 publications: 249 scientists 82–91 publications: 324 scientists 92–101 publications: 421 scientists 102–111 publications: 420 scientists 112–121 publications: 497 scientists 122–131 publications: 544 scientists 132–141 publications: 555 scientists 142–151 publications: 609 scientists 152–161 publications: 559 scientists 162–171 publications: 534 scientists 172–181 publications: 556 scientists 182–191 publications: 583 scientists 192–201 publications: 519 scientists 202–211 publications: 508 scientists 212–221 publications: 490 scientists 222–231 publications: 437 scientists 232–241 publications: 423 scientists 242–251 publications: 408 scientists 252–261 publications: 377 scientists 262–271 publications: 301 scientists 272–281 publications: 335 scientists 282–291 publications: 320 scientists 292–301 publications: 293 scientists 302–311 publications: 250 scientists 312–321 publications: 238 scientists 322–331 publications: 206 scientists 332–341 publications: 209 scientists 342–351 publications: 208 scientists 352–361 publications: 162 scientists 362–371 publications: 176 scientists 372–381 publications: 127 scientists 382–391 publications: 158 scientists 392–401 publications: 128 scientists 402–411 publications: 104 scientists 412–421 publications: 94 scientists 422–431 publications: 99 scientists 432–441 publications: 83 scientists 442–451 publications: 108 scientists 452–461 publications: 73 scientists 462–471 publications: 77 scientists 472–481 publications: 69 scientists 482–491 publications: 84 scientists 492–501 publications: 62 scientists 502–511 publications: 54 scientists 512–521 publications: 57 scientists 522–531 publications: 51 scientists 532–541 publications: 51 scientists 542–551 publications: 32 scientists 552–561 publications: 38 scientists 562–571 publications: 28 scientists 572–581 publications: 43 scientists 582–591 publications: 33 scientists 592–601 publications: 41 scientists 602–611 publications: 32 scientists 612–621 publications: 28 scientists 622–631 publications: 25 scientists 632–641 publications: 27 scientists 642–651 publications: 17 scientists 652–661 publications: 20 scientists 662–671 publications: 17 scientists 672–681 publications: 15 scientists 682–691 publications: 14 scientists 692–701 publications: 21 scientists 702–711 publications: 13 scientists 712–721 publications: 12 scientists 722–731 publications: 19 scientists 732–741 publications: 14 scientists 742–751 publications: 12 scientists 752–761 publications: 10 scientists 762–771 publications: 10 scientists 772–781 publications: 11 scientists 782–791 publications: 10 scientists 792–801 publications: 11 scientists 802–811 publications: 8 scientists 812–821 publications: 8 scientists 822–831 publications: 7 scientists 832–841 publications: 11 scientists 842–851 publications: 10 scientists 852–861 publications: 5 scientists 862–871 publications: 9 scientists 872–881 publications: 4 scientists 882–891 publications: 6 scientists 892–901 publications: 3 scientists 902–911 publications: 6 scientists 912–921 publications: 3 scientists 922–931 publications: 2 scientists 932–941 publications: 2 scientists 942–951 publications: 2 scientists 952–961 publications: 3 scientists 962–971 publications: 3 scientists 972–981 publications: 3 scientists 982–990 publications: 5 scientists 991+ publications: 100 scientists
32 publications 991+

This scientist: 456 publications — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 991 publications or more.

Stefanos Kollias D-index placement in Computer Science in 2026

The chart shows the D-index (discipline H-index) distribution of Computer Science scientists ranked by Research.com in 2026. The highlighted bar marks where Stefanos Kollias sits on this spectrum.

30–31 D-Index: 879 scientists 32–33 D-Index: 983 scientists 34–35 D-Index: 918 scientists 36–37 D-Index: 990 scientists 38–39 D-Index: 968 scientists 40–41 D-Index: 907 scientists 42–43 D-Index: 821 scientists 44–45 D-Index: 763 scientists 46–47 D-Index: 689 scientists 48–49 D-Index: 543 scientists 50–51 D-Index: 543 scientists 52–53 D-Index: 518 scientists 54–55 D-Index: 500 scientists 56–57 D-Index: 458 scientists 58–59 D-Index: 400 scientists 60–61 D-Index: 337 scientists 62–63 D-Index: 308 scientists 64–65 D-Index: 292 scientists 66–67 D-Index: 249 scientists 68–69 D-Index: 213 scientists 70–71 D-Index: 192 scientists 72–73 D-Index: 189 scientists 74–75 D-Index: 165 scientists 76–77 D-Index: 139 scientists 78–79 D-Index: 119 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 113 scientists 84–85 D-Index: 88 scientists 86–87 D-Index: 87 scientists 88–89 D-Index: 75 scientists 90–91 D-Index: 69 scientists 92–93 D-Index: 57 scientists 94–95 D-Index: 46 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 34 scientists 100–101 D-Index: 36 scientists 102–103 D-Index: 27 scientists 104–105 D-Index: 37 scientists 106–107 D-Index: 18 scientists 108–109 D-Index: 31 scientists 110–111 D-Index: 19 scientists 112–113 D-Index: 16 scientists 114–115 D-Index: 12 scientists 116–117 D-Index: 20 scientists 118–119 D-Index: 15 scientists 120–121 D-Index: 5 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 8 scientists 126–127 D-Index: 5 scientists 128–129 D-Index: 7 scientists 130 D-Index: 3 scientists 131+ D-Index: 98 scientists
30 D-Index 131+

This scientist: 56 D-Index — 72nd percentile

72% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 131 D-Index or more.

Research.com Recognitions

  • 2015 - IEEE Fellow For contributions to intelligent systems for multimedia content analysis and human-machine interaction

Overview

Stefanos Kollias is affiliated with the National Technical University of Athens in Greece, contributing extensively to research in computer science, engineering, and medicine. Their work spans multiple fields and subfields, reflecting a multidisciplinary approach to technological and scientific challenges.

The main fields of study for Stefanos Kollias include:

  • Computer Science
  • Engineering
  • Medicine

Within these broader fields, Kollias's research focuses on several subfields:

  • Computer Vision and Pattern Recognition
  • Artificial Intelligence
  • Radiology, Nuclear Medicine and Imaging
  • Plant Science
  • Aerospace Engineering

Their work addresses a variety of scientific and technological topics, such as:

  • COVID-19 diagnosis using AI
  • Human Pose and Action Recognition
  • AI in cancer detection
  • Anomaly Detection Techniques and Applications
  • Greenhouse Technology and Climate Control
  • Radiomics and Machine Learning in Medical Imaging
  • Advanced Neural Network Applications

Frequent publication venues for their work include:

  • arXiv (Cornell University)
  • Lincoln Repository (University of Lincoln)
  • Annals of Nuclear Energy
  • Sensors
  • Electronics

Stefanos Kollias has collaborated regularly with several co-authors across their publications. These include the following researchers:

  • Dimitrios Kollias
  • Αναστάσιος Αρσένος
  • James Wingate
  • Georgios Leontidis
  • Miao Yu

Selected recent papers authored or co-authored by Kollias are:

  • A Unified Deep Learning Approach for Prediction of Parkinson's Disease (2020, Lincoln Repository (University of Lincoln))
  • AI-Enabled Efficient and Safe Food Supply Chain (2021, MDPI (MDPI AG))
  • HUMAN4D: A Human-Centric Multimodal Dataset for Motions and Immersive Media (2020, IEEE Access)
  • DeMoCap: Low-Cost Marker-Based Motion Capture (2021, International Journal of Computer Vision)
  • Deep Transparent Prediction through Latent Representation Analysis (2020, arXiv (Cornell University))

In 2015, Stefanos Kollias was recognized as an IEEE Fellow for contributions to intelligent systems for multimedia content analysis and human-machine interaction.

Best Publications

  • Emotion recognition in human-computer interaction

    R. Cowie;E. Douglas-Cowie;N. Tsapatsoulis;G. Votsis

  • A string metric for ontology alignment

    Giorgos Stoilos;Giorgos Stamou;Stefanos Kollias

  • 2005 Special Issue: Emotion recognition through facial expression analysis based on a neurofuzzy network

    Spiros V. Ioannou;Amaryllis T. Raouzaiou;Vasilis A. Tzouvaras;Theofilos P. Mailis

  • An adaptive least squares algorithm for the efficient training of artificial neural networks

    S. Kollias;D. Anastassiou

  • Estimation of behavioral user state based on eye gaze and head pose--application in an e-learning environment

    Stylianos Asteriadis;Paraskevi Tzouveli;Kostas Karpouzis;Stefanos Kollias

  • Dense saliency-based spatiotemporal feature points for action recognition

    Konstantinos Rapantzikos;Yannis Avrithis;Stefanos Kollias

  • Semantic Image Segmentation and Object Labeling

    T. Athanasiadis;P. Mylonas;Y. Avrithis;S. Kollias

  • Uncertainty and the Semantic Web

    G. Stoilos;N. Simou;G. Stamou;S. Kollias

  • Parameterized facial expression synthesis based on MPEG-4

    Amaryllis Raouzaiou;Nicolas Tsapatsoulis;Kostas Karpouzis;Stefanos Kollias

  • Emotion analysis in man-machine interaction systems

    T. Balomenos;A. Raouzaiou;S. Ioannou;A. Drosopoulos

  • A fuzzy video content representation for video summarization and content-based retrieval

    Anastasios D. Doulamis;Nikolaos D. Doulamis;Stefanos D. Kollias

  • Deep neural architectures for prediction in healthcare

    Dimitrios Kollias;Athanasios Tagaris;Andreas Stafylopatis;Stefanos Kollias

  • On-line retrainable neural networks: improving the performance of neural networks in image analysis problems

    A.D. Doulamis;N.D. Doulamis;S.D. Kollias

  • Low bit-rate coding of image sequences using adaptive regions of interest

    N. Doulamis;A. Doulamis;D. Kalogeras;S. Kollias

  • Efficient summarization of stereoscopic video sequences

    N.D. Doulamis;A.D. Doulamis;Y.S. Avrithis;K.S. Ntalianis

  • An adaptable neural-network model for recursive nonlinear traffic prediction and modeling of MPEG video sources

    A.D. Doulamis;N.D. Doulamis;S.D. Kollias

  • A Stochastic Framework for Optimal Key Frame Extraction from MPEG Video Databases

    Yannis S Avrithis;Anastasios D Doulamis;Nikolaos D Doulamis;Stefanos D Kollias

  • An intelligent e-learning system based on learner profiling and learning resources adaptation

    Paraskevi Tzouveli;Phivos Mylonas;Stefanos Kollias

  • VIRaL: Visual Image Retrieval and Localization

    Yannis Kalantidis;Giorgos Tolias;Yannis Avrithis;Marios Phinikettos

  • A stochastic framework for optimal key frame extraction from MPEG video databases

    N.D. Doulamis;A.D. Doulamis;Y. Avrithis;S.D. Kollias

  • Emotional face expression profiles supported by virtual human ontology: Research Articles

    A. García-Rojas;F. Vexo;D. Thalmann;A. Raouzaiou

Frequent Co-Authors

Kostas Karpouzis
Kostas Karpouzis Panteion University
Nikolaos Doulamis
Nikolaos Doulamis National Technical University of Athens
Anastasios Doulamis
Anastasios Doulamis National Technical University of Athens
Yannis Avrithis
Yannis Avrithis Institute of Advanced Research on Artificial Intelligence (IARAI)
Roddy Cowie
Roddy Cowie Queen's University Belfast
Erkki Oja
Erkki Oja Aalto University
Dimitris Anastassiou
Dimitris Anastassiou Columbia University
Włodzisław Duch
Włodzisław Duch Nicolaus Copernicus University
Daniel Thalmann
Daniel Thalmann École Polytechnique Fédérale de Lausanne
Petros Daras
Petros Daras Information Technologies Institute, Greece

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