Giorgos Kordopatis-Zilos

PostDoc Researcher, Similarity Learning // Computer Vision // Machine Learning
Visual Recognition Group, Faculty of Electrical Engineering, Czech technical university in Prague

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I am a postdoctoral researcher at the Czech Technical University in Prague, and a member of the Visual Recognition Group (VRG), working with Prof. Giorgos Tolias. Prior to that, I was a post-doctoral researcher with the Media Analysis, Verification and Retrieval (MeVer) group of the Centre of Research and Technology Hellas (CERTH), working with Dr. Symeon (Akis) Papadopoulos. I earned a diploma in Electrical and Computer Engineering from Aristotle University of Thessaloniki, Greece, and awarded a Ph.D. in Computer Vision and Machine Learning by Queen Mary University of London, under the supervision of Prof. Ioannis (Yiannis) Patras. My research interests include similarity learning, multimedia indexing, retrieval and matching, supervised and self-supervised learning, knowledge distillation, location estimation, deepfake detection, forgery analysis.

news

Jul 1, 2024 Our paper has been accepted for publication at ECCV 2024
Apr 4, 2024 Our paper has been accepted for publication at WMF workshop @CVPR2024
Sep 22, 2023 Our paper has been accepted for publication at NeurIPS 2023
Jun 19, 2023 Our Visual Copy Detection Workshop (VCDW) will be held @CVPR2023
Jun 12, 2023 Our workshop on Multimedia AI against Disinformation (MAD’23) will be held @ICMR2023

selected publications

  1. ames.jpg
    AMES: Asymmetric and Memory-Efficient Similarity Estimation for Instance-level Retrieval
    Pavel Suma, Giorgos Kordopatis-Zilos, Ahmet Iscen, and 1 more author
    In European Conference on Computer Vision (ECCV), 2024
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    Fusion Transformer with Object Mask Guidance for Image Forgery Analysis
    Dimitrios Karageorgiou, Giorgos Kordopatis-Zilos, and Symeon Papadopoulos
    In IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2024
  3. ttt_vos.gif
    Test-time Training for Matching-based Video Object Segmentation
    Juliette Bertrand*, Giorgos Kordopatis-Zilos*, Yannis Kalantidis, and 1 more author
    In Advances in Neural Information Processing Systems (NeurIPS) [* denotes co-first authorship], 2023
  4. s2vs.jpg
    Self-Supervised Video Similarity Learning
    Giorgos Kordopatis-Zilos, Giorgos Tolias, Christos Tzelepis, and 3 more authors
    In IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2023
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    DnS: Distill-and-Select for Efficient and Accurate Video Indexing and Retrieval
    Giorgos Kordopatis-Zilos, Christos Tzelepis, Symeon Papadopoulos, and 2 more authors
    International Journal of Computer Vision (IJCV), 2022
  6. visil.jpg
    ViSil: Fine-grained Spatio-Temporal Video Similarity Learning
    Giorgos Kordopatis-Zilos, Symeon Papadopoulos, Ioannis Patras, and 1 more author
    In IEEE/CVF International Conference on Computer Vision (ICCV), 2019
  7. fivr.gif
    FIVR: Fine-grained Incident Video Retrieval
    Giorgos Kordopatis-Zilos, Symeon Papadopoulos, Ioannis Patras, and 1 more author
    IEEE Transactions on Multimedia (TMM), 2019
  8. dml.jpg
    Near-Duplicate Video Retrieval With Deep Metric Learning
    Giorgos Kordopatis-Zilos, Symeon Papadopoulos, Ioannis Patras, and 1 more author
    In IEEE/CVF International Conference on Computer Vision Workshops (ICCVW), 2017
  9. geotag.jpg
    Geotagging Text Content with Language Models and Feature Mining
    Giorgos Kordopatis-Zilos, Symeon Papadopoulos, and Ioannis Kompatsiaris
    Proceedings of IEEE (PoIEEE), 2017