CERTH at MediaEval Placing Task 2013. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Eleftherios Spyromitros Xioufis; Andreas L. Symeonidis; Yiannis Kompatsiaris (MediaEval, 2013)

SocialSensor at MediaEval Placing Task 2014. - Giorgos Kordopatis-Zilos; Giorgos Orfanidis; Symeon Papadopoulos; Yiannis Kompatsiaris (MediaEval, 2014)

CERTH/CEA LIST at MediaEval Placing Task 2015. - Giorgos Kordopatis-Zilos; Adrian Popescu 001; Symeon Papadopoulos; Yiannis Kompatsiaris (MediaEval, 2015)

Geotagging Social Media Content with a Refined Language Modelling Approach. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Yiannis Kompatsiaris (PAISI, 2015)

Placing Images with Refined Language Models and Similarity Search with PCA-reduced VGG Features. - Giorgos Kordopatis-Zilos; Adrian Popescu 001; Symeon Papadopoulos; Yiannis Kompatsiaris (MediaEval, 2016)

In-depth Exploration of Geotagging Performance using Sampling Strategies on YFCC100M. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Yiannis Kompatsiaris (MMCommons @ ACM Multimedia, 2016)

Near-Duplicate Video Retrieval with Deep Metric Learning. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Patras; Yiannis Kompatsiaris (ICCV Workshops, 2017)

Near-Duplicate Video Retrieval by Aggregating Intermediate CNN Layers. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Patras; Yiannis Kompatsiaris (MMM (1), 2017)

Geotagging Text Content With Language Models and Feature Mining. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Kompatsiaris (Proc. IEEE, 2017)

Location Extraction from Social Media: Geoparsing, Location Disambiguation, and Geotagging. - Stuart E. Middleton; Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Yiannis Kompatsiaris (ACM Trans. Inf. Syst., 2018)

Finding Near-Duplicate Videos in Large-Scale Collections. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Patras; Ioannis Kompatsiaris (Video Verification in the Fake News Era, 2019)

ViSiL: Fine-Grained Spatio-Temporal Video Similarity Learning. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Patras; Yiannis Kompatsiaris (ICCV, 2019)

Brenda Starr at SemEval-2019 Task 4: Hyperpartisan News Detection. - Olga Papadopoulou; Giorgos Kordopatis-Zilos; Markos Zampoglou; Symeon Papadopoulos; Yiannis Kompatsiaris (SemEval@NAACL-HLT, 2019)

FIVR: Fine-Grained Incident Video Retrieval. - Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Patras; Ioannis Kompatsiaris (IEEE Trans. Multim., 2019)

Audio-based Near-Duplicate Video Retrieval with Audio Similarity Learning. - Pavlos Avgoustinakis; Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Andreas L. Symeonidis; Ioannis Kompatsiaris (ICPR, 2020)

MeVer Team Tackling Corona Virus and 5G Conspiracy Using Ensemble Classification Based on BERT. - Olga Papadopoulou; Giorgos Kordopatis-Zilos; Symeon Papadopoulos (MediaEval, 2020)

Investigating the Impact of Pre-processing and Prediction Aggregation on the DeepFake Detection Task. - Polychronis Charitidis; Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Kompatsiaris (TTO, 2020)

A Face Preprocessing Approach for Improved DeepFake Detection. - Polychronis Charitidis; Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Kompatsiaris (CoRR, 2020)

Operation-wise Attention Network for Tampering Localization Fusion. - Polychronis Charitidis; Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Ioannis Kompatsiaris (CBMI, 2021)

Leveraging EfficientNet and Contrastive Learning for Accurate Global-scale Location Estimation. - Giorgos Kordopatis-Zilos; Panagiotis Galopoulos; Symeon Papadopoulos; Ioannis Kompatsiaris (ICMR, 2021)

Products-6K: A Large-Scale Groceries Product Recognition Dataset. - Kostas Georgiadis; Giorgos Kordopatis-Zilos; Fotis Kalaganis; Panagiotis Migkotzidis; Elisavet Chatzilari; Valasia Panakidou; Kyriakos Pantouvakis; Savvas Tortopidis; Symeon Papadopoulos; Spiros Nikolopoulos; Ioannis Kompatsiaris (PETRA, 2021)

Fine-grained Incident Video Retrieval with video similarity learning. - Giorgos Kordopatis-Zilos (2021)

The MeVer DeepFake Detection Service: Lessons Learnt from Developing and Deploying in the Wild. - Spiros Baxevanakis; Giorgos Kordopatis-Zilos; Panagiotis Galopoulos; Lazaros Apostolidis; Killian Levacher; Ipek Baris Schlicht; Denis Teyssou; Ioannis Kompatsiaris; Symeon Papadopoulos (MAD@ICMR, 2022)

MAD '22 Workshop: Multimedia AI against Disinformation. - Bogdan Ionescu; Giorgos Kordopatis-Zilos; Adrian Popescu 001; Luca Cuccovillo; Symeon Papadopoulos (ICMR, 2022)

Leveraging Selective Prediction for Reliable Image Geolocation. - Apostolos Panagiotopoulos; Giorgos Kordopatis-Zilos; Symeon Papadopoulos (MMM (2), 2022)

DnS: Distill-and-Select for Efficient and Accurate Video Indexing and Retrieval. - Giorgos Kordopatis-Zilos; Christos Tzelepis; Symeon Papadopoulos; Ioannis Kompatsiaris; Ioannis Patras (Int. J. Comput. Vis., 2022)

Self-Supervised Video Similarity Learning. - Giorgos Kordopatis-Zilos; Giorgos Tolias; Christos Tzelepis; Ioannis Kompatsiaris; Ioannis Patras; Symeon Papadopoulos (CVPR Workshops, 2023)

MAD '23 Workshop: Multimedia AI against Disinformation. - Luca Cuccovillo; Bogdan Ionescu; Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Adrian Popescu 001 (ICMR, 2023)

Improving Synthetically Generated Image Detection in Cross-Concept Settings. - Pantelis Dogoulis; Giorgos Kordopatis-Zilos; Ioannis Kompatsiaris; Symeon Papadopoulos (MAD@ICMR, 2023)

A Multi-Stream Fusion Network for Image Splicing Localization. - Maria Siopi; Giorgos Kordopatis-Zilos; Polychronis Charitidis; Ioannis Kompatsiaris; Symeon Papadopoulos (MMM (2), 2023)

Test-time Training for Matching-based Video Object Segmentation. - Juliette Bertrand; Giorgos Kordopatis-Zilos; Yannis Kalantidis; Giorgos Tolias (NeurIPS, 2023)

Fusion Transformer with Object Mask Guidance for Image Forgery Analysis. - Dimitrios Karageorgiou; Giorgos Kordopatis-Zilos; Symeon Papadopoulos (CVPR Workshops, 2024)

AMES: Asymmetric and Memory-Efficient Similarity Estimation for Instance-Level Retrieval. - Pavel Suma; Giorgos Kordopatis-Zilos; Ahmet Iscen; Giorgos Tolias (ECCV (59), 2024)

MAD '24 Workshop: Multimedia AI against Disinformation. - Cristian Lucian Stanciu; Bogdan Ionescu; Luca Cuccovillo; Symeon Papadopoulos; Giorgos Kordopatis-Zilos; Adrian Popescu 001; Roberto Caldelli (ICMR, 2024)

The Visual Saliency Transformer Goes Temporal: TempVST for Video Saliency Prediction. - Nikos Lazaridis; Kostas Georgiadis; Fotis Kalaganis; Giorgos Kordopatis-Zilos; Symeon Papadopoulos; Spiros Nikolopoulos; Ioannis Kompatsiaris (IEEE Access, 2024)

The 2023 video similarity dataset and challenge. - Ed Pizzi; Giorgos Kordopatis-Zilos; Hiral Patel; Gheorghe Postelnicu; Sugosh Nagavara Ravindra; Akshay Gupta; Symeon Papadopoulos; Giorgos Tolias; Matthijs Douze (Comput. Vis. Image Underst., 2024)

MINTIME: Multi-Identity Size-Invariant Video Deepfake Detection. - Davide Alessandro Coccomini; Giorgos Kordopatis-Zilos; Giuseppe Amato 001; Roberto Caldelli; Fabrizio Falchi; Symeon Papadopoulos; Claudio Gennaro (IEEE Trans. Inf. Forensics Secur., 2024)

ILIAS: Instance-Level Image retrieval At Scale. - Giorgos Kordopatis-Zilos; Vladan Stojnic; Anna Manko; Pavel Suma; Nikolaos-Antonios Ypsilantis; Nikos Efthymiadis; Zakaria Laskar; Jiri Matas; Ondrej Chum; Giorgos Tolias (CVPR, 2025)

LOCORE: Image Re-ranking with Long-Context Sequence Modeling. - Zilin Xiao; Pavel Suma; Ayush Sachdeva; Hao-Jen Wang; Giorgos Kordopatis-Zilos; Giorgos Tolias; Vicente Ordonez (CVPR, 2025)

MAD'25: 4th ACM International Workshop on Multimedia AI against Disinformation. - Dan-Cristian Stanciu; Bogdan Ionescu; Symeon Papadopoulos; Giorgos Kordopatis-Zilos; Adrian Popescu 001; Roberto Caldelli; Milica Gerhardt; Vera Schmitt (ICMR, 2025)

InDistill: Information flow-preserving knowledge distillation for model compression. - Ioannis Sarridis; Christos Koutlis; Giorgos Kordopatis-Zilos; Ioannis Kompatsiaris; Symeon Papadopoulos (WACV, 2025)

Processing and acquisition traces in visual encoders: What does CLIP know about your camera? - Ryan Ramos; Vladan Stojnic; Giorgos Kordopatis-Zilos; Yuta Nakashima; Giorgos Tolias; Noa Garcia (CoRR, 2025)