All Stories

  1. Improving Generalization in Deepfake Detection with Face Foundation Models and Metric Learning

    Article • October 2025, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  2. 'Humor, Art, or Misinformation?': A Multimodal Dataset for Intent-Aware Synthetic Image Detection

    Article • October 2025, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  3. Multimodal and Multilingual Fact-Checked Article Retrieval

    Article • June 2025, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  4. MAD'25: 4th ACM International Workshop on Multimedia AI against Disinformation

    Article • June 2025, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Giorgos Kordopatis-Zilos

  5. Towards Quantitative Evaluation of Explainable AI Methods for Deepfake Detection

    Article • June 2024, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  6. Credible, Unreliable or Leaked?: Evidence verification for enhanced automated fact-checking

    Article • June 2024, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  7. SIDBench: A Python framework for reliably assessing synthetic image detection methods

    Article • June 2024, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  8. MAD '24 Workshop: Multimedia AI against Disinformation

    Article • May 2024, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Giorgos Kordopatis-Zilos

  9. FaceX: Understanding Face Attribute Classifiers through Summary Model Explanations

    Article • May 2024, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  10. Integrity 2024: Integrity in Social Networks and Media

    Article • March 2024, ACM (Association for Computing Machinery)

    Stefano Cresci, Symeon Papadopoulos

  11. Online Behaviour Indicator Extraction for Enhanced Cancer Patient Management using Real-World Data

    Article • September 2023, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  12. Improving Synthetically Generated Image Detection in Cross-Concept Settings

    Article • June 2023, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Giorgos Kordopatis-Zilos, Ioannis Kompatsiaris

  13. Synthetic Misinformers: Generating and Combating Multimodal Misinformation

    Article • June 2023, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  14. MAAM: Media Asset Annotation and Management

    Article • June 2023, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  15. MemeFier: Dual-stage Modality Fusion for Image Meme Classification

    Article • June 2023, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  16. MAD ’23 Workshop: Multimedia AI against Disinformation

    Article • June 2023, ACM (Association for Computing Machinery)

    Giorgos Kordopatis-Zilos, Symeon Papadopoulos

  17. Novel Paradigms of Human-Fashion Interaction

    Article • September 2022, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris, Anastasios Papazoglou Chalikias

  18. The MeVer DeepFake Detection Service: Lessons Learnt from Developing and Deploying in the Wild

    Article • June 2022, ACM (Association for Computing Machinery)

    Ioannis Kompatsiaris, Symeon Papadopoulos

  19. MAD '22 Workshop: Multimedia AI against Disinformation

    Article • June 2022, ACM (Association for Computing Machinery)

    Symeon Papadopoulos

  20. Leveraging EfficientNet and Contrastive Learning for Accurate Global-scale Location Estimation

    Article • August 2021, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris

  21. Products-6K: A Large-Scale Groceries Product Recognition Dataset

    Article • June 2021, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris

  22. Social media monitoring tools for air quality accounts

    Article • October 2019, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris

  23. An easy-to-use information extraction framework for constructing CSR databases from the Web

    Article • ACM Transactions on Internet Technology, November 2018, ACM (Association for Computing Machinery)

    Richard Mills, Symeon Papadopoulos, Sotiris Diplaris, Mrs Vasiliki Gkatziaki, Ioannis Kompatsiaris

  24. Location Extraction from Social Media

    Article • ACM Transactions on Information Systems, October 2018, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris

  25. Adaptive Sensitive Reweighting to Mitigate Bias in Fairness-aware Classification

    Article • January 2018, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris

  26. Social Circle Discovery in Ego-Networks by Mining the Latent Structure of User Connections and Profile Attributes

    Article • August 2015, ACM (Association for Computing Machinery)

    Ioannis Kompatsiaris, Symeon Papadopoulos

  27. Improving Diversity in Image Search via Supervised Relevance Scoring

    Article • June 2015, ACM (Association for Computing Machinery)

    Ioannis Kompatsiaris, Symeon Papadopoulos

  28. Visual Event Summarization on Social Media using Topic Modelling and Graph-based Ranking Algorithms

    Article • June 2015, ACM (Association for Computing Machinery)

    Ioannis Kompatsiaris, Symeon Papadopoulos

  29. Challenges of computational verification in social multimedia

    Article • January 2014, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris

  30. Scalable training with approximate incremental laplacian eigenmaps and PCA

    Article • October 2013, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris

  31. Cluster-based photo browsing and tagging on the go

    Article • June 2012, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris

  32. City exploration by use of spatio-temporal analysis and clustering of user contributed photos

    Article • April 2011, ACM (Association for Computing Machinery)

    Symeon Papadopoulos, Ioannis Kompatsiaris