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Dr. Symeon Papadopoulos -
Publications

Journals

  1. I. Lazarou, A. M. Krooupa, S. Nikolopoulos, L. Apostolidis, N. Sarris, S. Papadopoulos, I. Kompatsiaris, "Cancer Patients’ Perspectives and Requirements of Digital Health Technologies: A Scoping Literature Review.", Cancers. 2024; 16(13):2293, June 2024. https://doi.org/10.3390/cancers16132293
  2. D. Giomelakis, O. Papadopoulou, S. Papadopoulos, A. A. Veglis, "Verification of News Video Content: Findings from a Study of Journalism Students.", Journalism Practice, 17:5, 1068-1097. DOI: 10.1080/17512786.2021.1965905
  3. E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "JGNN: Graph Neural Networks on native Java.", SoftwareX, Volume 23, 2023, 101459. https://doi.org/10.1016/j.softx.2023.101459
  4. C. Koutlis, M. Schinas, S. Papadopoulos, "MemeTector: enforcing deep focus for meme detection.", International Journal of Multimedia Information Retrieval,12. 2023. DOI: 10.1007/s13735-023-00277-6
  5. V. Iosifidis, S. Papadopoulos, B. Rosenhahn, E. Ntoutsi, "AdaCC: cumulative cost-sensitive boosting for imbalanced classification.", Knowl Inf Syst 65, 789–826 (2023). https://doi.org/10.1007/s10115-022-01780-8
  6. S. I. Papadopoulos, C. Koutlis, S. Papadopoulos, I. Kompatsiaris, "VICTOR: Visual incompatibility detection with transformers and fashion-specific contrastive pre-training", . Journal of Visual Communication and Image Representation, 103741. https://doi.org/10.1016/j.jvcir.2022.103741
  7. S. I. Papadopoulos, C. Koutlis, S. Papadopoulos, I. Kompatsiaris, "Multimodal Quasi-AutoRegression: Forecasting the visual popularity of new fashion products.", International Journal of Multimedia Information Retrieval. 11(4), 717-729. https://doi.org/10.1007/s13735-022-00262-5
  8. S. Papadopoulos, G. Kordopatis-Zilos, M. Zampoglou, O. Papadopoulou, "Dataset column: Datasets for online multimedia verification.", ACM SIGMultimedia Records, 11(3), 1-1. 2022.
  9. G. Kordopatis-Zilos, C. Tzelepis, S. Papadopoulos, I. Kompatsiaris, I. Patras, "DnS: Distill-and-Select for Efficient and Accurate Video Indexing and Retrieval.", International Journal of Computer Vision, 130(10), 2385-2407. (2022).
  10. V. Iosifidis, S. Papadopoulos, B. Rosenhahn, E. Ntoutsi, "AdaCC: cumulative cost-sensitive boosting for imbalanced classification.", Knowledge and Information Systems, 1-38. (2022).
  11. O. Papadopoulou, E. Kartsounidou, S. Papadopoulos, "COVID-Related Misinformation Migration to BitChute and Odysee.", Future Internet, 14(12), 350. (2022).
  12. E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, A. Symeonidis, "pygrank: A python package for graph node ranking", /SoftwareX/,/20/, p.101227, 2022
  13. C. Koutlis, M. Schinas, S. Papadopoulos, "MemeTector: Enforcing deep focus for meme detection.", International Journal of Multimedia Information Retrieval. 2022.
  14. A. Mpatziakas, A. Drosou, S. Papadopoulos, D. Tzovaras, "IoT threatmitigation engine empowered by artificial intelligence multi-objective optimization", Journal of Network and Computer Applications, Volume 203, 2022. https://doi.org/10.1016/j.jnca.2022.103398
  15. S. Fabbrizzi, S. Papadopoulos, E. Ntoutsi, I. Kompatsiaris, "A survey on bias in visual datasets.", Computer Vision and Image Understanding, 223, 103552. (2022).
  16. I. Sarridis, V. Gkatziaki, E. Krasanakis, N. Giatsoglou, N. Sarris, S. Papadopoulos, I. Kompatsiaris, "TALK: A decentralised messaging framework that preserves the privacy of users.", Open Research Europe, 2, 29. Helios 2022.
  17. E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "p2pgnn: A decentralized graph neural network for node classification in peer-to-peer networks", . IEEE Access. 2022 Mar 14;10:34755-65
  18. O. Papadopoulou, T. Makedas, L. Apostolidis, F. Poldi, S. Papadopoulos, I. Kompatsiaris, "Mever networkx: Network analysis and visualization for tracing disinformation.", Future Internet, 14(5), 147. 2022.
  19. E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "Applying fairness constraints on graph node ranks under personalization bias", . Complex Networks & Their Applications IX: Volume 2, Proceedings of the Ninth International Conference on Complex Networks and Their Applications COMPLEX NETWORKS 2020 2021 (pp. 610-622). Springer International Publishing.
  20. A. Følstad, T. Araujo, E. Law, P. Brandtzaeg, S. Papadopoulos, "Future directions for chatbot research: an interdisciplinary research agenda", Computing, vol. 103, no. 12, pp. 2915–2942, 2021.
  21. D. Giomelakis, O. Papadopoulou, S. Papadopoulos, A. Veglis, "Verification of News Video Content: Findings from a Study of Journalism Students", Journalism Practice, pp. 1–30, 2021.
  22. E. Ntoutsi, P. Fafalios, U. Gadiraju, V. Iosifidis, W. Nejdl, M. Vidal, S. Ruggieri, F. Turini, S. Papadopoulos, E. Krasanakis, I. Kompatsiaris, "Bias in data driven artificial intelligence systems—An introductory survey", Wiley Interdisciplinary Reviews: Data Mining and Knowledge Discovery, 10(3), e1356. May 2020. https://doi.org/10.1002/widm.1356
  23. C. Koutlis, S. Papadopoulos, M. Schinas, I. Kompatsiaris, "LAVARNET: Neural network modeling of causal variable relationships for multivariate time series forecasting", Applied Soft Computing, vol. 96, p. 106685, 2020.
  24. E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "Unsupervised evaluation of multiple node ranks by reconstructing local structures", Applied Network Science, vol. 5, no. 1, pp. 1–32, 2020.
  25. C. Koutlis, M. Schinas, S. Papadopoulos, I. Kompatsiaris, "GAP: Geometric Aggregation of Popularity Metrics", Information, vol. 11, no. 6, p. 323, 2020.
  26. E. Krasanakis, E. Schinas, S. Papadopoulos, I. Kompatsiaris, A. Symeonidis, "Boosted seed oversampling for local community ranking", Information Processing & Management, vol. 57, no. 2, p. 102053, 2020.
  27. G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris, "FIVR: Fine-grained Incident Video Retrieval", arXiv preprint arXiv:1809.04094 (under revision in TMM) https://arxiv.org/pdf/1809.04094.pdf
  28. O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, "A corpus of debunked and verified user-generated videos", Online Information Review (2018)
  29. C. Iakovidou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, "Content-aware detection of JPEG grid inconsistencies for intuitive image forensics", Journal of Visual Communication and Image Representation, 54, 155-170, 2018.
  30. A. Tsakalidis, S. Papadopoulos, R. Voskaki, K. Ioannidou, C. Boididou, A. Cristea, et al, "Building and evaluating resources for sentiment analysis in the greek language", Language Resources and Evaluation, 52(4), 1021-1044
  31. E. Kosmidis, P. Syropoulou, S. Tekes, P. Schneider, E. Spyromitros-Xioufis, M. Riga, P. Charitidis, A. Moumtzidou, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, I. Stavrakas, G. Hloupis, A. Loukidis, K. Kourtidis, A. Georgoulias, G. Alexandri, "hackAIR: Towards raising Awareness about Air Quality in Europe by developing a Collective Online Platform", ISPRS International Journal of Geo-Information 2018
  32. V. Gkatziaki, S. Papadopoulos, R. Mills, S. Diplaris, I. Tsampoulatidis, I. Kompatsiaris, "easIE: Easy-to-Use information extraction for constructing CSR databases from the Web", ACM Transactions on Internet Technology (TOIT), vol. 18, no. 4, pp. 1–21, 2018.
  33. S. Middleton, G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris, "Location extraction from social media: Geoparsing, location disambiguation, and geotagging", ACM Transactions on Information Systems (TOIS), vol. 36, no. 4, pp. 1–27, 2018.
  34. C. Boididou, S. Papadopoulos, M. Zampoglou, L. Apostolidis, O. Papadopoulou, I. Kompatsiaris, "Detection and visualization of misleading content on Twitter", International Journal of Multimedia Information Retrieval, vol. 7, no. 1, pp. 71–86, 2018.
  35. S. Middleton, S. Papadopoulos, I. Kompatsiaris, "Social computing for verifying social media content in breaking news", IEEE Internet Computing, vol. 22, no. 2, pp. 83–89, 2018.
  36. G. Rizos, S. Papadopoulos, I. Kompatsiaris, "Multilabel user classification using the community structure of online networks", 2017, PloS one, 12(3), e0173347
  37. K. Konstantinidis, S. Papadopoulos, I. Kompatsiaris, "Exploring Twitter communication dynamics with evolving community analysis", 2017, PeerJ Computer Science, 3, e107
  38. C. Boididou, S.E. Middleton, Z. Jin, S. Papadopoulos, D.-T. Dang-Nguyen, G. Boato, I. Kompatsiaris, "Verifying information with multimedia content on Twitter", Multimedia Tools and Applications (2017): 1-27.
  39. G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris, "Geotagging Text Content With Language Models and Feature Mining", 2017, Proceedings of the IEEE, 105(10), 1971-1986.
  40. M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, "Large-scale evaluation of splicing localization algorithms for web images", Multimedia Tools and Applications, vol. 76, no. 4, pp. 4801–4834, 2017.
  41. G. Petkos, M. Schinas, S. Papadopoulos, I. Kompatsiaris, "Graph-based multimodal clustering for social multimedia", Multimedia Tools and Applications, vol. 76, no. 6, pp. 7897–7919, 2017.
  42. M. Schinas, S. Papadopoulos, I. Kompatsiaris, P. Mitkas, "MGraph: multimodal event summarization in social media using topic models and graph-based ranking", International Journal of Multimedia Information Retrieval, 5(1), 51-69, 2016.
  43. S. Papadopoulos, K. Bontcheva, E. Jaho, M. Lupu, C. Castillo, "Overview of the Special Issue on Trust and Veracity of Information in Social Media", ACM Trans. Inf. Syst. 34, 3, Article 14 (April 2016).
  44. E. Mantziou, S. Papadopoulos, I. Kompatsiaris, "Learning to detect concepts with Approximate Laplacian Eigenmaps in large-scale and online settings", International Journal of Multimedia Information Retrieval 4(2), pp. 95-111, 2015
  45. A. Tsakalidis, S. Papadopoulos, A. Cristea, I. Kompatsiaris, "Predicting elections for multiple countries using Twitter and polls", IEEE Intelligent Systems, 30(2), 10-17, 2015.
  46. G. Paliouras, S. Papadopoulos, D. Vogiatzis, "Discovery of complex user communities.", User Community Discovery, 1-22. (2015).
  47. S. Papadopoulos, A. Popescu, "Privacy awareness and user empowerment in online social networking settings.", IEEE Computer Society, Guest Editors' Introduction. (2015).
  48. S. Papadopoulos, P. Cesar, D. Shamma, A. Kelliher, R. Jain, "Social Multimedia and Storytelling", [Guest editors' introduction]. IEEE MultiMedia, 22(3), 10-13. (2015).
  49. E. Spyromitros-Xioufis, S. Papadopoulos, I. Kompatsiaris, G. Tsoumakas, I. Vlahavas, "A Comprehensive Study over VLAD and Product Quantization in Large-scale Image Retrieval", IEEE Transactions on Multimedia 16(6), pp. 1713-1728, October 2014.
  50. S. Papadopoulos, I. Kompatsiaris, "Social Multimedia Crawling for Mining and Search", IEEE Computer, Volume 47, Issue 5, May 2014, pp. 84-87
  51. C. Zigkolis, S. Papadopoulos, G. Filippou, I. Kompatsiaris, A. Vakali, "Collaborative event annotation in tagged photo collections.", Multimedia Tools and Applications, 70, 89-118. (2014).
  52. L. Aiello, G. Petkos, C. Martin, D. Corney, S. Papadopoulos, R. Skraba, A. Goker, I. Kompatsiaris, A. Jaimes, "Sensing trending topics in Twitter", Transactions on Multimedia, online preprint, IEEE, 2013, doi:10.1109/TMM.2013.2265080
  53. S. Papadopoulos, E. Schinas, T. Mironidis, K. Iliakopoulou, E. Spyromitros-Xioufis, I. Tsampoulatidis, I. Kompatsiaris, "Social multimedia crawling and search.", IEEE Computer Society Special Technical Community on Social Networking E-Letter, 1(3). (2013).
  54. S. Papadopoulos, I. Kompatsiaris, A. Vakali, P. Spyridonos, "Community detection in social media: Performance and application considerations.", Data mining and knowledge discovery, 24, 515-554. (2012).
  55. S. Papadopoulos, C. Zigkolis, I. Kompatsiaris, A. Vakali, "Cluster-based landmark and event detection for tagged photo collections.", IEEE Multimedia Magazine, 18(1), 52-63. (2012).
  56. S. Vrochidis, S. Papadopoulos, A. Moumtzidou, P. Sidiropoulos, E. Pianta, I. Kompatsiaris, "Towards Content-based Patent Image Retrieval: A Framework Perspective",World Patent Information Journal, Volume 32, Issue 2, pp 94-106, June 2010
  57. S. Papadopoulos, A. Vakali, I. Kompatsiaris, "The Dynamics of Content Popularity in Social Media", In International Journal of Data Warehousing and Mining, Vol.6, Issue 1, 2010, accepted for publication
  58. L. Wanner, R. Baeza-Yates, S. Brugmann, J. Codina, B. Diallo, E. Escorsa, M. Giereth, I. Kompatsiaris, S. Papadopoulos, E. Pianta, G. Piella, I. Puhlmann, G. Rao, M. Rotard, P. Schoester, L. Serafini, V. Zervaki, "Towards content-oriented patent document processing", World Patent Information, In Press, Corrected Proof, May 2007

Conference

  1. S. Fabbrizzi, X. Zhao, E. Krasanakis, S. Papadopoulos, E. Ntoutsi, "Studying bias in visual features through the lens of optimal transport.", Data Min Knowl Disc (2023). https://doi.org/10.1007/s10618-023-00972-2
  2. I. Sarridis, C. Koutlis, S. Papadopoulos, C. Diou, "Towards Fair Face Verification: An In-depth Analysis of Demographic Biases.", BIAS 2023 ECML/PKDD Workshop. https://doi.org/10.48550/arXiv.2307.10011
  3. L. Cuccovillo, B. Ionescu, G. Kordopatis-Zilos, S. Papadopoulos, A. Popescu, "MAD ’23 Workshop: Multimedia AI against Disinformation.", In Proceedings of the 2023 ACM International Conference on Multimedia Retrieval (ICMR '23). Association for Computing Machinery, New York, NY, USA, 676–677. https://doi.org/10.1145/3591106.3592303
  4. G. Kordopatis-Zilos, G. Tolias, C. Tzelepis, I. Kompatsiaris, I. Patras, S. Papadopoulos, "Self-Supervised Video Similarity Learning.", 2023 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), Vancouver, BC, Canada, 2023, pp. 4756-4766, DOI: 10.1109/CVPRW59228.2023.00504
  5. S. I. Papadopoulos, C. Koutlis, S. Papadopoulos, P. Petrantonakis, "Synthetic Misinformers: Generating and Combating Multimodal Misinformation.", In Proceedings of the 2nd ACM International Workshop on Multimedia AI against Disinformation (pp. 36-44). 2023, June. https://doi.org/10.1145/3592572.3592842
  6. C. Koutlis, M. Schinas, S. Papadopoulos, "MemeFier: Dual-stage Modality Fusion for Image Meme Classification.", In Proceedings of the 2023 ACM International Conference on Multimedia Retrieval (ICMR '23). Association for Computing Machinery, New York, NY, USA, 586–591. https://doi.org/10.1145/3591106.3592254
  7. P. Dogoulis, G. Kordopatis-Zilos, I. Kompatsiaris, S. Papadopoulos, "Improving Synthetically Generated Image Detection in Cross-Concept Settings.", In Proceedings of the 2nd ACM International Workshop on Multimedia AI against Disinformation (MAD '23). Association for Computing Machinery, New York, NY, USA, 28–35. https://doi.org/10.1145/3592572.3592846
  8. M. Schinas, P. Galopoulos, S. Papadopoulos, "MAAM: Media Asset Annotation and Management.", In Proceedings of the 2023 ACM International Conference on Multimedia Retrieval (ICMR '23). Association for Computing Machinery, New York, NY, USA, 659–663. https://doi.org/10.1145/3591106.3592232
  9. F. Temmermans, S. Caldwell, S. Papadopoulos, F. Pereira, P. Rixhon, "Towards an international standard to establish trust in media production, distribution and consumption.", 2023 24th International Conference on Digital Signal Processing (DSP), Rhodes (Rodos), Greece, 2023, pp. 1-5, DOI: 10.1109/DSP58604.2023.10167884
  10. M. Siopi, G. Kordopatis-Zilos, P. Charitidis, I. Kompatsiaris, S. Papadopoulos, "A Multi-Stream Fusion Network for Image Splicing Localization.", In 2023 International Conference on Multimedia Modeling (MMM).
  11. A. Følstad, T. Araujo, S. Papadopoulos, E. L. C. Law, E. Luger, M. Goodwin, P. B. Brandtzaeg, "Chatbot Research and Design.", 6th International Workshop, CONVERSATIONS 2022, Amsterdam, The Netherlands, November 22–23, 2022, Revised Selected Papers. https://doi.org/10.1007/978-3-031-25581-6
  12. S. I. Papadopoulos, C. Koutlis, A. Papazoglou Chalikias, S. Papadopoulos, S. Nikolopoulos, "Design-time Fashion Popularity Forecasting in VR Environments", In 2022 Conference on Computer Vision and Pattern Recognition (CVPR) “Ethical Considerations in Creative applications of Computer Vision” workshop.
  13. I. Sarridis, C. Koutlis, O. Papadopoulou, S. Papadopoulos, "Leveraging Large-scale Multimedia Datasets to Refine Content Moderation Models.", In 2022 IEEE Eighth International Conference on Multimedia Big Data (BigMM) (pp. 125-132). IEEE. 2022 December.
  14. E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "AutoGF: Runtime Graph Filter Tuning for Community Node Ranking", . 11th International Conference on Complex Networks and their Applications, 2022
  15. A. Papazoglou Chalikias, E. Kouslis, O. Sarakatsanos, A. Boikou, S. I. Papadopoulos, C. Koutlis, S. Papadopoulos, S. Nikolopoulos, I. Kompatsiaris, D. Gavilan, D. Shin, Y. Chen, A. François, M. Jauk, J. Sutherland, "Novel Paradigms of Human-Fashion Interaction.", In Proceedings of the 12th Hellenic Conference on Artificial Intelligence (pp. 1-11). (SETN '22). Association for Computing Machinery, New York, NY, USA, Article 62, 1–11. https://doi.org/10.1145/3549737.3549803
  16. N. Giatsoglou, E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "A Graph Diffusion Scheme for Decentralized Content Search based on Personalized PageRank.", In 2022 IEEE 42nd International Conference on Distributed Computing Systems Workshops (ICDCSW), Bologna, Italy, 2022 (pp. 53-59). IEEE. (2022, July). doi: 10.1109/ICDCSW56584.2022.00019
  17. S. Baxevanakis, G. Kordopatis-Zilos, P. Galopoulos, L. Apostolidis, K. Levacher, I. Baris Schlicht, D. Teyssou, I. Kompatsiaris, S. Papadopoulos, "The MeVer DeepFake Detection Service: Lessons Learnt from Developing and Deploying in the Wild.", In Proceedings of the 1st International Workshop on Multimedia AI against Disinformation (pp. 59-68). https://doi.org/10.1145/3512732.3533587
  18. B. Ionescu, G. Kordopatis-Zilos, A. Popescu, L. Cuccovillo, S. Papadopoulos, "MAD'22 Workshop: Multimedia AI against Disinformation.", In Proceedings of the 2022 International Conference on Multimedia Retrieval (pp. 688-689). (2022, June).
  19. S. I. Papadopoulos, C. Koutlis, M. Pugliese, M. Sudheer, D. Rabiller, S. Papadopoulos, I. Kompatsiaris, "Attentive Hierarchical Label Sharing for Enhanced Garment and Attribute Classification of Fashion Imagery.", In Recommender Systems in Fashion and Retail: Proceedings of the Third Workshop at the Recommender Systems Conference (2021) (pp. 95-115). Cham: Springer International Publishing. (2022, March).
  20. A. Panagiotopoulos, G. Kordopatis-Zilos, S. Papadopoulos, "Leveraging Selective Prediction for Reliable Image Geolocation", arXiv preprint arXiv:2111. 11952, 2022 (accepted for publication in MMM 2022)
  21. I. Politis, I. Fyrogenis, E. Papadopoulos, A. Nikolaidou, E. Verani, L. Apostolidis, S. Papadopoulos, M. Liatsikou, I. Kompatsiaris, G. Keikoglou, K. Alexiou, N. Chondros, I. Tsampouris, R. Katkadigkas, M. Ioannidou, V. Mplesios, "A holistic approach to optimize and promote Bike-Sharing Systems, through an integrated action plan.", In 2021 21st International Conference on Computational Science and Its Applications (ICCSA) (pp. 157-167). IEEE. (2021, September).
  22. F. Tsalakanidou, S. Papadopoulos, V. Mezaris, I. Kompatsiaris, B. Gray, D. Tsabouraki, M. Kalogerini, F. Negro, M. Montagnuolo, J. Vos, P. Kemenade, D. Gravina, R. Mignot, A. Ozerov, F. Schnitzler, A. Garcia-Saez, G. Yannakakis, A. Liapis, G. Kostadinov, "The AI4Media project: Use of Next-generation Artificial Intelligence Technologies for Media Sector Applications", Proc. 17th Artificial Intelligence Applications and Innovations Conference (AIAI), Crete, Greece, June 2021. DOI:10.1007/978-3-030-79150-6_7.
  23. K. Georgiadis, G. Kordopatis-Zilos, F. Kalaganis, P. Migkotzidis, E. Chatzilari, V. Panakidou, K. Pantouvakis, S. Tortopidis, S. Papadopoulos, S. Nikolopoulos, I. Kompatsiaris, "Products-6K: A Large-Scale Groceries Product Recognition Dataset", in The 14th PErvasive Technologies Related to Assistive Environments Conference, 2021, pp. 1–7.
  24. P. Galopoulos, C. Iakovidou, V. Gkatziaki, S. Papadopoulos, I. Kompatsiaris, "Towards a Privacy Respecting Image-based User Profiling Component", in 2021 International Conference on Content-Based Multimedia Indexing (CBMI), 2021, pp. 1–6.
  25. G. Kordopatis-Zilos, P. Galopoulos, S. Papadopoulos, I. Kompatsiaris, "Leveraging EfficientNet and Contrastive Learning for Accurate Global-scale Location Estimation", ICMR '21: Proceedings of the 2021 International Conference on Multimedia Retrieval, 2021
  26. P. Charitidis, G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris, "Operation-wise Attention Network for Tampering Localization Fusion", in 2021 International Conference on Content-Based Multimedia Indexing (CBMI), 2021
  27. M. Liatsikou, S. Papadopoulos, L. Apostolidis, I. Kompatsiaris, "A Denoising Hybrid Model for Anomaly Detection in Trajectory Sequences", in EDBT/ICDT Workshops, 2021.
  28. P. Avgoustinakis, G. Kordopatis-Zilos, S. Papadopoulos, A. Symeonidis, I. Kompatsiaris, "Audio-based Near-Duplicate Video Retrieval with Audio Similarity Learning", in 2020 25th International Conference on Pattern Recognition (ICPR), 2021, pp. 5828–5835.
  29. A. Følstad, T. Araujo, S. Papadopoulos, "Chatbot Research and Design: 4th International Workshop, CONVERSATIONS 2020, Virtual Event, November 23-24, 2020, Revised Selected Papers.", Springer Nature, 2021.
  30. Z. Marinova, J. Spangenberg, D. Teyssou, S. Papadopoulos, N. Sarris, A. Alaphilippe, K. Bontcheva, "Weverify: Wider and Enhanced Verification for You Project Overview and Tools", In 2020 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) (pp. 1-4). IEEE, July 2020
  31. C. Iakovidou, S. Papadopoulos, I. Kompatsiaris, "Knowledge-Based Fusion for Image Tampering Localization", In IFIP International Conference on Artificial Intelligence Applications and Innovations (pp. 177-188), Springer, Cham, June 2020.
  32. O. Papadopoulou, G. Kordopatis-Zilos, S. Papadopoulos, "MeVer Team Tackling Corona Virus and 5G Conspiracy Using Ensemble Classification Based on BERT", MediaEval 2020.
  33. E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "Applying Fairness Constraints on Graph Node Ranks Under Personalization Bias", in International Conference on Complex Networks and Their Applications, 2020, pp. 610–622.
  34. E. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "Stopping Personalized PageRank without an Error Tolerance Parameter", in 2020 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), 2020, pp. 242–249.
  35. P. Charitidis, G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris, "Investigating the impact of pre-processing and prediction aggregation on the deepfake detection task", Conference for Truth and Trust Online 2020
  36. L. Apostolidis, S. Papadopoulos, "i-CHANGE: A platform for managing dockless bike sharing systems", in International Conference on Computational Science and Its Applications, 2020, pp. 851–867.
  37. Ε. Krasanakis, S. Papadopoulos, I. Kompatsiaris, "LinkAUC: Unsupervised Evaluation of Multiple Network Node Ranks Using Link Prediction", In International Conference on Complex Networks and Their Applications (pp. 3-14). Springer, Cham. December 2019
  38. A. Følstad, T. Araujo, S. Papadopoulos, E.L.C. Law, O.C. Granmo, E. Luger, P.B. Brandtzaeg, "Chatbot Research and Design", In Proceedings of the Third International Workshop, CONVERSATIONS (pp. 19-20). November 19–20, 2019.
  39. A. Følstad, T. Araujo, S. Papadopoulos, "Chatbot Research and Design: Third International Workshop, CONVERSATIONS 2019, Amsterdam, The Netherlands, November 19--20, 2019, Revised Selected Papers.", Springer Nature, 2020.
  40. C. Koutlis, M. Schinas, V. Gkatziaki, S. Papadopoulos, I. Kompatsiaris, "Data-driven song recognition estimation using collective memory dynamics models", In Proceedings of the 20th International Society for Music Information Retrieval Conference, ISMIR 2019, 4-8 November 2019. (accepted)
  41. P. Charitidis, S. Papadopoulos, L. Apostolidis, I. Kompatsiaris, "Social media monitoring tools for air quality accounts", Workshop On Social Innovation And Web Intelligence, International Conference on Web Intelligence, Volume (pp. 215-222), October 14–17, Thessaloniki, 2019.
  42. A. Folstad, S. Papadopoulos, O.C. Granmo, E.L.C. Law, E. Luger, P.B. Brandtzaeg, "Preface for CONVERSATIONS 2018-2nd International Workshop on Chatbot Research", In Internet Science: INSCI 2018 International Workshops, St. Petersburg, Russia, October 24–26, 2018, Revised Selected Papers (Vol. 11551, p. 82). Springer. June 2019
  43. O. Papadopoulou, G. Kordopatis-Zilos, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, "Brenda Starr at SemEval-2019 Task 4: Hyperpartisan News Detection", . In Proceedings of the 13th International Workshop on Semantic Evaluation, 2019, June (pp. 924-928).
  44. M. Zampoglou, F. Markatopoulou, G. Mercier, D. Touska, E. Apostolidis, S. Papadopoulos, R. Cozien, I. Patras, V. Mezaris, I. Kompatsiaris, "Detecting tampered videos with multimedia forensics and deep learning", Proc. 25th Int. Conf. on Multimedia Modeling (MMM2019), Thessaloniki, Greece, Springer LNCS vol. 11295, pp. 374-386, Jan. 2019.
  45. G. Kalpakis, T. Tsikrika, I. Gialampoukidis, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, "Analysis of Suspended Terrorism-Related Content on Social Media.",Community-Oriented Policing and Technological Innovations, 107-118. https://doi.org/10.1007/978-3-319-89294-8_11
  46. O. Papadopoulou, D. Giomelakis, L. Apostolidis, S. Papadopoulos, I. Kompatsiaris, "Context Aggregation and Analysis: A Tool for User-Generated Video Verification", in ROME: Workshop on Reducing Online Misinformation Exposure, 2019.
  47. G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris, "ViSiL: Fine-grained spatio-temporal video similarity learning", in Proceedings of the IEEE/CVF International Conference on Computer Vision, 2019, pp. 6351–6360.
  48. V. Gkatziaki, S. Diplaris, S. Papadopoulos, R. Mills, I. Kompatsiaris, "DynaMat: Open data-based dynamic comparison and summarization of financial and CSR performance of companies", 3rd Int. Workshop on the Internet for Financial Collective Awareness & Intelligence, IFIN 2018, Glasgow, UK, November 12-13, 2018
  49. E. Krasanakis, E. Schinas, S. Papadopoulos, I. Kompatsiaris, P. Mitkas, "VenueRank: Identifying Venues that contribute to Artist Popularity", . Proceedings of ISMIR 2018, September 23-27, Paris, France
  50. P. Charitidis, E. Spyromitros-Xioufis, S. Papadopoulos, I. Kompatsiaris, "Twitter-Based Sensing of City-Level Air Quality", . In 13th Image, Video, and Multidimensional Signal Processing Workshop (IVMSP) (pp. 1-5). IEEE. (2018, June)
  51. E. Krasanakis, E. Spyromitros-Xioufis, S. Papadopoulos, I. Kompatsiaris, "Adaptive Sensitive Reweighting to Mitigate Bias in Fairness-aware Classification", In Proceedings of the 2018 World Wide Web Conference on World Wide Web (pp. 853-862), (2018, April)
  52. S. Andreadis, I. Gialampoukidis, G. Kalpakis, T. Tsikrika, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, "A Monitoring Tool for Terrorism-related Key-players and Key-communities in Social Media Networks.", In Proceedings of the 2017 IEEE European Intelligence and Security Informatics Conference (EISIC 2017), Dekelia Air Base, Athens, Greece, September 11-13, 2017. https://zenodo.org/records/1172423#.X2B80MBS9PY
  53. I. Gialampoukidis, G. Kalpakis, T. Tsikrika, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, "Detection of Terrorism-related Twitter Communities using Centrality Scores",In Proceedings of International Workshop on Multimedia Forensics and Security (MFSec 2017), Bucharest, Romania, June 06, 2017. https://doi.org/10.1145/3078897.3080534
  54. V. Gkatziaki, S. Papadopoulos, S. Diplaris, I. Kompatsiaris, "Large-Scale Open Corporate Data Collection and Analysis as an Enabler of Corporate Social Responsibility Research", In: Kompatsiaris I. et al. (eds) Internet Science. INSCI 2017. Lecture Notes in Computer Science, vol 10673, pp. 266-280, Springer, Cham, https://doi.org/10.1007/978-3-319-70284-1_21
  55. M. Vogiatzi, Ch. Keratidis, M. Schinas, S. Diplaris, S. Yümlü, P. Forbes, S. Papadopoulos, P. Syropoulou, L. Apostolidis, I. Kompatsiaris, M. Symeonidou, "The STEP Project: Societal and Political Engagement of Young People in Environmental Issues", In: Kompatsiaris I. et al. (eds) Internet Science. INSCI 2017. Lecture Notes in Computer Science, vol 10673, pp 148-156, Springer, Cham, https://doi.org/10.1007/978-3-319-70284-1_12
  56. C. Boididou, S. Papadopoulos, L. Apostolidis, I. Kompatsiaris, "Learning to Detect Misleading Content on Twitter", In Proceedings of the 2017 ACM on International Conference on Multimedia Retrieval, pp. 278-286. ACM, 2017.
  57. G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris, "Near-Duplicate Video Retrieval with Deep Metric Learning", IEEE International Conference on Computer Vision (ICCV Workshops), 2017, pp. 347-356
  58. M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, J. Spangenberg, "A web-based service for disturbing image detection", Proc. 23rd Int. Conf. on MultiMedia Modeling (MMM'17), Reykjavik, Iceland, 4-6 January, 2017.
  59. D. Teyssou, J.-M. Leung, E. Apostolidis, K. Apostolidis, S. Papadopoulos, M. Zampoglou, O. Papadopoulou, V. Mezaris, "The InVID Plug-in: Web Video Verification on the Browser", Proc. Int. Workshop on Multimedia Verification (MuVer 2017) at ACM Multimedia 2017, Mountain View, CA, USA, October 2017.
  60. V. Mezaris, L. Nixon, S. Papadopoulos, J. Spangenberg, "MuVer17 - First International Workshop on Multimedia Verification", Proc. ACM Multimedia 2017, Mountain View, CA, USA, October 2017.
  61. E. Krasanakis, E. Spyromitros-Xioufis, S. Papadopoulos, I. Kompatsiaris, "Tunable Plug-In Rules with Reduced Posterior Certainty Loss in Imbalanced Datasets", Proc. 1st International Workshop on Learning with Imbalanced Domains: Theory and Applications (Co-located with ECML/PKDD 2017), Skopje, 22 Sep. 2017.
  62. O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, "Web Video Verification using Contextual Cues", In Proceedings of International Workshop on Multimedia Forensics and Security (MFSec 2017), Bucharest, Romania, June 06, 2017
  63. O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, "A two-level classification approach for detecting clickbait posts using text-based features", arXiv preprint arXiv:1710. 08528, 2017.
  64. G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris, "Near-Duplicate Video Retrieval by Aggregating Intermediate CNN Layers", Proc. 23rd Int. Conf. on MultiMedia Modeling (MMM'17), Reykjavik, Iceland, 4-6 January, 2017.
  65. B. Wang, M. Liakata, A. Tsakalidis, S. Georgakopoulos-Kolaitis, S. Papadopoulos, L. Apostolidis, A. Zubiaga, R. Procter, I. Kompatsiaris, "TOTEMSS: topic-based, temporal sentiment summarisation for Twitter", in Proceedings of the IJCNLP 2017, System Demonstrations, 2017, pp. 21–24.
  66. A. Moumtzidou, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, K. Kourtidis, G. Hloupis, I. Stavrakas, K. Papachristopoulou, C. Keratidis, "Towards Air Quality Estimation Using Collected Multimodal Environmental Data",1st International Workshop on Internet and Social media for Environmental Monitoring (In conjunction with the 3rd international conference on Internet Science (INSCI 2016), Florence, Italy, 12 September 2016. https://www.researchgate.net/publication/311087115_Towards_Air_Quality_Estimation_Using_Collected_Multimodal_Environmental_Data
  67. A. Moumtzidou, S. Papadopoulos, S. Vrochidis I. Kompatsiaris, K. Kourtidis, G. Hloupis, I. Stavrakas, K. Papachristopoulou, C. Keratidis, "Collection of Multimodal Environmental Data for Air Quality Estimation.",In Proc. of 1st International Workshop on the Social Web for Environmental and Ecological Monitoring (SWEEM), Cologne, Germany, 17 May 2016. https://zenodo.org/records/4295799#.X8NgzWUzaUk
  68. M. Schinas, S. Papadopoulos, L. Apostolidis, I. Kompatsiaris, P. Mitkas, "Open-source monitoring, search and analytics over social media", in International Conference on Internet Science, 2017, pp. 361–369.
  69. S. Papadopoulos, G. Petkos, E. Spyromitros-Xioufis, I. Kompatsiaris, "A Disclosure Scoring Framework for Personal Data", Conference/Exhibition (Poster), European Data Forum, 2016
  70. M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, R. Bouwmeester, J. Spangenberg, "Image Forensics on the Web and Social Media for News Professionals", Proceedings of SMNews at ICWSM 2016.
  71. G. Rizos, S. Papadopoulos, I. Kompatsiaris, "Predicting News Popularity by Mining Online Discussions", In Proceedings of the 25th International Conference Companion on World Wide Web (WWW '16 Companion). 2016. International World Wide Web Conferences Steering Committee, Republic and Canton of Geneva, Switzerland, 737-742.
  72. G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris, "In-depth Exploration of Geotagging Performance using Sampling Strategies on YFCC100M", Proceedings of the 2016 ACM Workshop on Multimedia COMMONS, pp. 3-10, ACM, New York, NY.
  73. G. Kordopatis-Zilos, A. Popescu, S. Papadopoulos, I. Kompatsiaris, "Placing Images with Refined Language Models and Similarity Search with PCA-reduced VGG Features", MediaEval 2016 workshop, Hilversum, Netherlands, October 2016.
  74. C. Boididou, S. Papadopoulos, S.E. Middleton, D.T.D. Nguyen, M. Riegler, A. Petlund, I. Kompatsiaris, "The VMU Participation @ Verifying Multimedia Use 2016", MediaEval 2016 workshop, Hilversum, Netherlands, October 2016.
  75. C. Boididou, S.E. Middleton, S. Papadopoulos, D.T. Dang-Nguyen, M. Riegler, G. Boato, A. Petlund, I. Kompatsiaris, "Verifying Multimedia Use at MediaEval 2016", MediaEval 2016 workshop, Hilversum, Netherlands, October 2016.
  76. M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, R. Bouwmeester, J. Spangenberg, "Web and social media image forensics for news professionals.", In Proceedings of the International AAAI Conference on Web and Social Media (Vol. 10, No. 2, pp. 159-166). (2016).
  77. G. Friedland, S. Papadopoulos, J. Bernd, I. Kompatsiaris, "Multimedia privacy.", In Proceedings of the 24th ACM international conference on Multimedia (pp. 1479-1480). (2016, October).
  78. E. Spyromitros-Xioufis, G. Petkos, S. Papadopoulos, R. Heyman, I. Kompatsiaris, "Perceived versus Actual Predictability of Personal Information in Social Networks", Proc. 3rd International Conference on Internet Science (INSCI 2016), Florence, Italy, September 12-14, 2016.
  79. A. Satsiou, G. Panos, I. Praggidis, S. Vrochidis, S. Papadopoulos, C. Keratidis, P. Syropoulou, H. Liu, "Collective Online Platforms for Financial and Environmental Awareness: First International Workshop on the Internet for Financial Collective Awareness and Intelligence", IFIN 2016 and First International Workshop on Internet and Social Media for Environmental Monitoring, ISEM 2016, Florence, Italy, September 12, 2016, Revised Selected Papers (Vol. 10078). Springer.
  80. R. Mills, S. De Paoli, S. Diplaris, V. Gkatziaki, S. Papadopoulos, S. Prasad, E. McCutchen, V. Kapadia, P. Hirche, "Leveraging collective awareness to understand companies’ environmental, social and governance performance.", In Internet Science: Third International Conference, INSCI 2016, Florence, Italy, September 12-14, 2016, Proceedings 3 (pp. 74-88). Springer International Publishing.
  81. E. Spyromitros-Xioufis, S. Papadopoulos, A. Popescu, I. Kompatsiaris, "Personalized Privacy-aware Image Classification", Proc. International Conference on Multimedia Retrieval (ICMR), New York, USA, June 6-9, 2016.
  82. T. Tsikrika, K. Andreadou, A. Moumtzidou, E. Schinas, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, "A Unified Model for Socially Interconnected Multimedia-Enriched Objects.", In 21st MultiMedia Modelling Conference (MMM2015), Sydney, Australia, 5-7 January, 2015. https://doi.org/10.1007/978-3-319-14445-0_32
  83. G. Petkos, S. Papadopoulos, I. Kompatsiaris, "Social Circle Discovery in Ego-Networks by Mining the Latent Structure of User Connections and Profile Attributes", ASONAM 2015.
  84. G. Petkos, S. Papadopoulos, I. Kompatsiaris, "PScore: a framework for enhancing privacy awareness in online social networks", MFSec 2015.
  85. T. Theodoridis, S. Papadopoulos, I. Kompatsiaris, "Assessing the Reliability of Facebook User Profiling", ICCSS, 2015
  86. G. Rizos, S. Papadopoulos, I. Kompatsiaris, "Learning to Classify Users in Online Interaction Networks", ICCSS, 2015
  87. C. Boididou, K. Andreadou, S. Papadopoulos, D.-T. Dang-Nguyen, G. Boato, M. Riegler, I. Kompatsiaris, "Verifying Multimedia Use at MediaEval 2015", In Proceedings of MediaEval 2015.
  88. M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, "Detecting image splicing in the wild Web", In Proceedings of ICME 2015 Workshop on Web Multimedia Verification (WeMuV 2015).
  89. C. Boididou, S. Papadopoulos, D.-T. Dang-Nguyen, G. Boato, I. Kompatsiaris, "The CERTH-UNITN Participation @ Verifying Multimedia Use 2015", Proceedings of MediaEval 2015.
  90. G. Kordopatis-Zilos, A. Popescu, S. Papadopoulos, I. Kompatsiaris, "CERTH/CEA LIST at MediaEval Placing Task 2015", In Proceedings of MediaEval 2015.
  91. K. Iliakopoulou, S. Papadopoulos, I. Kompatsiaris, "News-oriented multimedia search over multiple social networks", Proceedings of CBMI 2015.
  92. K. Andreadou, S. Papadopoulos, I. Kompatsiaris, "Web image size prediction for efficient focused image crawling", Proceedings of CBMI 2015.
  93. E. Schinas, S. Papadopoulos, I. Kompatsiaris, P. Mitkas, "Visual Event Summarization on Social Media using Topic Modelling and Graph-based Ranking Algorithms", Proceedings of ICMR 2015.
  94. G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris, "Geotagging Social Media Content with a Refined Language Modelling Approach", Proceedings of PA-KDD workshop PAISI 2015.
  95. K. Andreadou, S. Papadopoulos, L. Apostolidis, A. Krithara, I. Kompatsiaris, "Media REVEALr: A Social Multimedia Monitoring and Intelligence System for Web Multimedia Verification", In Intelligence and Security Informatics (pp. 1-20). Springer International Publishing.
  96. M. Schinas, S. Papadopoulos, G. Petkos, I. Kompatsiaris, P. Mitkas, "Multimodal Graph-based Event Detection and Summarization in Social Media Streams", In Proceedings of the 23rd Annual ACM Conference on Multimedia Conference (pp. 189-192). ACM.
  97. A. Popescu, E. Spyromitros-Xioufis, S. Papadopoulos, H. Le Borgne, I. Kompatsiaris, "Toward an Automatic Evaluation of Retrieval Performance with Large Scale Image Collections", Proc. 2015 Workshop on Community-Organized Multimodal Mining: Opportunities for Novel Solutions (MMCommons ‘15), Brisbane, Australia, October 26-30, 2015.
  98. A. Popescu, M. Hildebrandt, S. Papadopoulos, G. Petkos, I. Kompatsiaris, L. Claeys, T. Seymoens, D. Lund, T. Michalareas, T. Kastrinogiannis, E. de Vries, N. van Dijk, J. Pierson, A.M. Padyab, E. Gadeski, H. Le Borgne, "User Empowerment for Enhanced Online Presence Management – Use Cases and Tools", Amsterdam Privacy Conference 2015, pages 23-26, 8 October 2015, Amsterdam
  99. A. Popescu, M. Hildebrandt, J. Breuer, L. Claeys, S. Papadopoulos, G. Petkos, T. Michalareas, D. Lund, R. Heyman, S. van der Graaf, E. Gadeski, H. Le Borgne, K. deVries, T. Kastrinogiannis, A. Kousaridas, A. Padyab, "Increasing transparency and privacy for online social network users–USEMP value model, scoring framework and legal.", In Privacy Technologies and Policy: Third Annual Privacy Forum, APF 2015, Luxembourg, Luxembourg, October 7-8, 2015, Revised Selected Papers 3 (pp. 38-59). Springer International Publishing.
  100. E. Spyromitros-Xioufis, A. Popescu, S. Papadopoulos, I. Kompatsiaris, "USEMP: Finding Diverse Images at MediaEval 2015", Proc. MediaEval 2015 Multimedia Benchmark Workshop, Wurzen, Germany, September 14-15, 2015.
  101. M. Schinas, S. Papadopoulos, G. Petkos, I. Kompatsiaris, P. Mitkas, "Multimodal Event Detection and Summarization in Large Scale Image Collections", Proc. International Conference on Multimedia Retrieval (ICMR), Shanghai, China, June 23-26, 2015.
  102. E. Spyromitros-Xioufis, S. Papadopoulos, A. Ginsca, A. Popescu, I. Kompatsiaris, I. Vlahavas, "Improving Diversity in Image Search via Supervised Relevance Scoring", Proc. International Conference on Multimedia Retrieval (ICMR), Shanghai, China, June 23-26, 2015.
  103. G. Petkos, S. Papadopoulos, L. Aiello, R. Skraba, I. Kompatsiaris, "A soft frequent pattern mining approach for textual topic detection", Proceedings of the 4th International Conference on Web Intelligence, Mining and Semantics (WIMS '14). ACM, New York, NY, USA, Article 25, 2014
  104. G. Petkos, S. Papadopoulos, I. Kompatsiaris, "Graph-Based Multimodal Clustering for Social Event Detection in Large Collections of Images", Proceedings of MultiMedia Modeling, Lecture Notes in Computer Science Volume 8325, pp 146-158, Springer, 2014
  105. S. Beis, S. Papadopoulos, I. Kompatsiaris, "Benchmarking Graph Databases on the Problem of Community Detection", Advances in Intelligent Systems and Computing Volume 312, pp 3-14, Springer, 2014
  106. A. Tsakalidis, S. Papadopoulos, I. Kompatsiaris, "An Ensemble Model for Cross-Domain Polarity Classification on Twitter", Proceedings of Web Information Systems Engineering–WISE 2014 (pp. 168-177). Springer International Publishing, 2014
  107. I. Kompatsiaris, S. Diplaris, D. Corney, N. Heise, M. Klusch, E. Jaho, J. Geurts, I. Liu, G. Petkos, S. Papadopoulos, N. Sarris, A. Goker, J. Spangenberg, "Real-time social media indexing and search", In: IET Conference Proceedings, International Broadcasting Community Conference 2014 (IBC 2014), Amsterdam, Netherlands, p. 5.3-5.3.
  108. I. Kompatsiaris, S. Diplaris, S. Papadopoulos, "Invited Keynote at MSDM 2014: Multimodal Social Data Management Workshop", (part of EDBT/ICDT 2014), “Social Data and Multimedia Analytics for News and Events Applications”, pp. 280-281
  109. M. Riga, G. Petkos, S. Papadopoulos, M. Schinas, I. Kompatsiaris, "CERTH@ MediaEval 2014 Social Event Detection Task.", In MediaEval 2014 Workshop Proceedings.
  110. G. Petkos, S. Papadopoulos, V. Mezaris, I. Kompatsiaris, "Social Event Detection at MediaEval 2014: Challenges, Datasets, and Evaluation", Proc. MediaEval 2014 Workshop, CEUR vol. 1263, Barcelona, Spain, October 2014.
  111. A. Popescu, S. Papadopoulos, I. Kompatsiaris, "USEMP at MediaEval Placing Task 2014", Proc. MediaEval 2014 Multimedia Benchmark Workshop, Barcelona, Catalunya, Spain, October 16-17, 2014.
  112. G. Kordopatis-Zilos, G. Orfanidis, S. Papadopoulos, I. Kompatsiaris, "SocialSensor at MediaEval Placing Task 2014", Proc. MediaEval 2014 Multimedia Benchmark Workshop, Barcelona, Catalunya, Spain, October 16-17, 2014.
  113. M. Riga, G. Petkos, S. Papadopoulos, M. Schinas, I. Kompatsiaris, "CERTH @ MediaEval 2014 Social Event Detection Task", Proc. MediaEval 2014 Multimedia Benchmark Workshop, Barcelona, Catalunya, Spain, October 16-17, 2014.
  114. E. Spyromitros-Xioufis, S. Papadopoulos, I. Kompatsiaris, I. Vlahavas, "SocialSensor: Finding Diverse Images at MediaEval 2014", Proc. MediaEval 2014 Multimedia Benchmark Workshop, Barcelona, Catalunya, Spain, October 16-17, 2014.
  115. G. Petkos, S. Papadopoulos, V. Mezaris, R. Troncy, P. Cimiano, T. Reuter, I. Kompatsiaris, "Social Event Detection at MediaEval: a three-year retrospect of tasks and results", Proc. ACM ICMR 2014 Workshop on Social Events in Web Multimedia (SEWM), Glasgow, UK, April 2014.
  116. S. Papadopoulos, D. Corney, L. Aiello, "SNOW 2014 Data Challenge: Assessing the Performance of News Topic Detection Methods in Social Media.", In Snow-dc@ www (pp. 1-8). (2014, April).
  117. S. Papadopoulos, P. Cesar, D. Shamma, A. Kelliher, R. Jain, "SoMuS: Social Multimedia and Storytelling.", In Proc. First Int’l Workshop Social Multimedia and Storytelling. (2014, April).
  118. C. Boididou, S. Papadopoulos, I. Kompatsiaris, S. Schifferes, N. Newman, "Challenges of computational verification in social multimedia", Proceedings of the companion publication of the 23rd international conference on World Wide Web companion (WWW Companion '14). pp. 743-748, April 2014
  119. T. Reuter, S. Papadopoulos, V. Mezaris, P. Cimiano, "ReSEED: Social Event dEtection Dataset", Proc. 5th ACM Multimedia Systems Conference (MMSys’14), Singapore, March 2014.
  120. G. Petkos, S. Papadopoulos, I. Kompatsiaris, "Two-level Message Clustering for Topic Detection in Twitter.", In SNOW-DC@ WWW (pp. 49-56). (2014).
  121. M. Schinas, S. Papadopoulos, I. Kompatsiaris, P. Mitkas, "StreamGrid: Summarization of Large Scale Events using Topic Modelling and Temporal Analysis.", In Proceedings of the 1st International Workshop on Social Multimedia and Storytelling co-located with ACM International Conference on Multimedia Retrieval (ICMR 2014).
  122. D. Kastrinakis, S. Papadopoulos, A. Vakali, "Compact and Distinctive Visual Vocabularies for Efficient Multimedia Data Indexing.", Advances in Databases and Information Systems, Springer Berlin Heidelberg, pp. 98-111, 2013. https://doi.org/10.1007/978-3-642-40683-6_8
  123. E. Mantziou, S. Papadopoulos, I. Kompatsiaris, "Scalable training with approximate incremental Laplacian Eigenmaps and PCA", Proceedings of the 21st ACM international conference on Multimedia (pp. 381-384). ACM, 2013
  124. K. Konstantinidis, S. Papadopoulos, I. Kompatsiaris, "Community structure and evolution analysis of osn interactions around real-world social phenomena", In Proceedings of the 17th Panhellenic Conference on Informatics (pp. 9-16). ACM.
  125. E. Schinas, S. Papadopoulos, S. Diplaris, I. Kompatsiaris, I. Mass, J. Herzig, L. Boudakidis, "EventSense: Capturing the Pulse of Large-scale Events by Mining Social Media Streams", Proceedings of the 17th Panhellenic Conference on Informatics, PCI'13 (pp. 17-24). ACM
  126. T. Reuter, S. Papadopoulos, G. Petkos, V. Mezaris, I. Kompatsiaris, P. Cimiano, C. de Vries, S. Geva, "Social Event Detection at MediaEval 2013: Challenges, Datasets, and Evaluation", Proc. MediaEval 2013 Workshop, CEUR vol. 1043, Barcelona, Spain, October 2013.
  127. G. Kordopatis-Zilos, S. Papadopoulos, E. Spyromitros-Xioufis, A. Symeonidis, I. Kompatsiaris, "CERTH at MediaEval Placing Task 2013", Proc. MediaEval 2013 Multimedia Benchmark Workshop, Barcelona, Spain, October 18-19, 2013.
  128. D. Corney, C. Martin, A. Göker, E. Spyromitros-Xioufis, S. Papadopoulos, I. Kompatsiaris, L. Aiello, B. Thomee, "SocialSensor: Finding Diverse Images at MediaEval 2013", Proc. MediaEval 2013 Multimedia Benchmark Workshop, Barcelona, Spain, October 18-19, 2013.
  129. S. Nikolopoulos, S. Papadopoulos, I. Kompatsiaris, "Reality Mining in urban space", The Fourth International Conference on Information, Intelligence, Systems and Applications (IISA 2013), Workshop on Urban Computing & Modern Cities, Piraeus, Greece, July 10 – 12, 2013.
  130. E. Mantziou, S. Papadopoulos, I. Kompatsiaris, "Large-scale semi-supervised learning by Approximate Laplacian Eigenmaps, VLAD and Pyramids", In Proceedings of the 14th International Workshop on Image Analysis for Multimedia Interactive Services WIAMIS 2013), Paris, France, July 2013.
  131. S. Papadopoulos, E. Schinas, V. Mezaris, R. Troncy, I. Kompatsiaris, "The 2012 Social Event Detection Dataset", Proc. ACM Multimedia Systems 2013 (MMSys), Oslo, Norway, Feb.-March 2013.
  132. S. Papadopoulos, C. Sagonas, I. Kompatsiaris, A. Vakali, "Semi-supervised concept detection by learning the structure of similarity graphs", Advances in Multimedia Modeling, LNCS Volume 7732, pp 1-12, Huangshan, China, January 7-9, 2013 (Best Paper Honorable Mention), doi:10.1007/978-3-642-35725-1_1
  133. S. Papadopoulos, J. Bakalli, I. Kompatsiaris, E. Schinas, "Cluster-based Photo Browsing and Tagging on the Go", In Proceedings of ACM International Conference on Multimedia Retrieval (ICMR), Hong Kong, 2012 (best demo award)
  134. S. Diplaris, G. Petkos, S. Papadopoulos, I. Kompatsiaris, N. Sarris, C. Martin, A. Goker, D. Corney, J. Geurts, Y. Liu, J.-C. Point, "SocialSensor: Surfacing Real-Time Trends and Insights from Multiple Social Networks", In Proceedings of the 2012 NEM Summit. Istanbul, Turkey, 47-52.
  135. S. Diplaris, S. Papadopoulos, I. Kompatsiaris, N. Heise, J. Spangenberg, N. Newman, H. Hacid, "Making sense of it all", an attempt to aid journalists in analysing and filtering user generated content". In Proceedings of the 21st international conference companion on World Wide Web (WWW '12 Companion). ACM, New York, NY, USA, 1241-1246.
  136. S. Papadopoulos, E. Schinas, V. Mezaris, R. Troncy, I. Kompatsiaris, "Social Event Detection at MediaEval 2012: Challenges, Dataset and Evaluation", Proc. MediaEval 2012 Workshop, Pisa, Italy, October 2012.
  137. G. Petkos, S. Papadopoulos, I. Kompatsiaris, "Social event detection using multimodal clustering and integrating supervisory signals.", In Proceedings of the 2nd ACM International Conference on Multimedia Retrieval (pp. 1-8). (2012, June).
  138. E. Spyromitros-Xioufis, S. Papadopoulos, I. Kompatsiaris, G. Tsoumakas, I. Vlahavas, "An empirical study on the combination of SURF features with VLAD vectors for image search.", In 2012 13th International Workshop on Image Analysis for Multimedia Interactive Services (pp. 1-4). IEEE. (2012, May).
  139. S. Diplaris, S. Papadopoulos, I. Kompatsiaris, A. Goker, A. Macfarlane, J. Spangenberg, H. Hacid, L. Maknavicius, M. Klusch, "Socialsensor: sensing user generated input for improved media discovery and experience.", In Proceedings of the 21st international conference on World Wide Web (pp. 243-246). (2012, April).
  140. D. Culibrk, P. Lugonja, M. Mirkovic, V. Crnojevic, S. Papadopoulos, C. Zigkolis, I. Kompatsiaris, "Quality-driven Video Abstraction.", In 2012 International Conference on Information and Software Technologies (ICISΤ) (pp. 118-123).
  141. E. Mantziou, G. Petkos, S. Papadopoulos, C. Sagonas, I. Kompatsiaris, "CERTH's Participation at the Photo Annotation Task of ImageCLEF 2012.", In CLEF (Online Working Notes/Labs/Workshop).
  142. I. Kompatsiaris, S. Diplaris, S. Papadopoulos, "Extracting emergent semantics from large-scale user-generated content.", In ICT Innovations 2011 (pp. 27-37). Springer Berlin Heidelberg. (2012).
  143. M. Mirkovic, D. Culibrk, S. Papadopoulos, C. Zigkolis, I. Kompatsiaris, G. McArdle, V. Crnojevic, "A comparative study of spatial, temporal and content-based patterns emerging in YouTube and Flickr.", In 2011 International Conference on Computational Aspects of Social Networks (CASoN) (pp. 189-194). IEEE. (2011, October).
  144. S. Papadopoulos, R. Troncy, V. Mezaris, B. Huet, I. Kompatsiaris, "Social Event Detection at MediaEval 2011: Challenges, Dataset and Evaluation", Proc. MediaEval 2011 Workshop, Pisa, Italy, September 2011
  145. S. Papadopoulos, C. Zigkolis, I. Kompatsiaris, A. Vakali, "CERTH@ MediaEval 2011 Social Event Detection Task.", In MediaEval. (2011, September).
  146. E. Chatzilari, S. Nikolopoulos, S. Papadopoulos, C. Zigkolis, I. Kompatsiaris, "Semi-Supervised object recognition using flickr images",Proc. 9th International Workshop on Content-Based Multimedia Indexing (CBMI 2011), Madrid, Spain, June 2011
  147. C. Zigkolis, S. Papadopoulos, I. Kompatsiaris, A. Vakali, "Detecting the long-tail of points of interest in tagged photo collections.", In 2011 9th International Workshop on Content-Based Multimedia Indexing (CBMI) (pp. 235-240). IEEE. (2011, June).
  148. S. Papadopoulos, A. Scherp, N. Ireson, I. Tsampoulatidis, I. Kompatsiaris, "Using Event Representation and Semantic Enrichment for Managing and Reviewing Emergency Incident Logs", In 2nd ACM International Workshop on Events in MultiMedia, October 25-29, 2010, Firenze, Italy, accepted for publication
  149. S. Papadopoulos, C. Zigkolis, S. Kapiris, I. Kompatsiaris, A. Vakali, "ClustTour: City Exploration by use of Hybrid Photo Clustering.", In Technical Demonstration session of ACM Multimedia 2010, accepted for presentation
  150. S. Papadopoulos, C. Zigkolis, G. Tolias, I. Kalantidis, P. Mylonas, I. Kompatsiaris, A. Vakali, "Image Clustering through Community Detection on Hybrid Image Similarity Graphs", . In ICIP 2010, The Hong Kong Convention and Exhibition Centre, September 26 - 29, 2010, Hong Kong
  151. S. Papadopoulos, I. Kompatsiaris, A. Vakali, "A Graph-based Clustering Scheme for Identifying Related Tags in Folksonomies", In DaWaK 2010, accepted for publication
  152. S. Papadopoulos, I. Kompatsiaris, A. Vakali, "Leveraging Collective Intelligence through Community Detection in Tag Networks", In Proceedings of CKCaR'09 Workshop on Collective Knowledge Capturing and Representation, Redondo Beach, California, USA, Sep 2009
  153. S. Papadopoulos, F. Menemenis, I. Kompatsiaris, B. Bratu, "Lexical Graphs for Improved Contextual Ad Recommendation", In Proceedings of the 31st European Conference on Information Retrieval, Toulouse, France, ECIR '09, Apr 2009
  154. A. Scherp, F. Schwagereit, N. Ireson, V. Lanfranchi, S. Papadopoulos, A. Kritikos, I. Kompatsiaris, P. Smrz, "Leveraging Web 2.0 Communities in Professional Organisations", In W3C Workshop on the Future of Social Networking, Barcelona, Jan 2009
  155. J. Codina, E. Pianta, S. Vrochidis, S. Papadopoulos, "Integration of Semantic, Metadata and Image search engines with a text search engine for patent retrieval.",Semantic Search 2008 Workshop, Tenerife, Spain, June 2, 2008. https://www.researchgate.net/publication/220854044_Integration_of_Semantic_Metadata_and_Image_Search_Engines_with_a_Text_Search_Engine_for_Patent_Retrieval
  156. F. Menemenis, S. Papadopoulos, B. Bratu, S. Waddington, I. Kompatsiaris, "AQUAM: Automatic Query Formulation Architecture for Mobile Applications", In Proceedings of the 7th international Conference on Mobile and Ubiquitous Multimedia, Umea, Sweden, MUM '08, ACM, New York, NY, Dec 2008
  157. S. Papadopoulos, A. Vakali, I. Kompatsiaris, "Digg it Up! Analyzing Popularity Evolution in a Web 2.0 Setting", In Proceedings of the Workshop on Mining Social Data (MSoDa 2008) at the 18th European Conference on Artificial Intelligence (ECAI 2008), Patras, Greece, Jul 2008
  158. M. Giereth, S. Koch, Y. Kompatsiaris, S. Papadopoulos, E. Pianta, L. Serafini, L. Wanner, "A Modular Framework for Ontology-based Representation of Patent Information", JURIX 2007: The 20th Anniversary International Conference on Legal Knowledge and Information Systems, Leyden, Netherlands, 2007.
  159. S. Papadopoulos, V. Mezaris, I. Kompatsiaris, M. G. Strintzis, "A Region-based Approach to Conceptual Image Classification", Proc. IEE International Conference on Visual Information Engineering (VIE 2005), Glasgow, UK, Apr 2005.

Books Chapters

  1. E. Apostolidis, K. Apostolidis, I. Patras, V. Mezaris, "Video Fragmentation and Reverse Search on the Web", in book "Video Verification in the Fake News Era", V. Mezaris, L. Nixon, S. Papadopoulos, D. Teyssou (Eds.), pp. 53-90, Springer, 2019. DOI: 10.1007/978-3-030-26752-0_3
  2. F. Markatopoulou, M. Zampoglou, E. Apostolidis, S. Papadopoulos, V. Mezaris, I. Patras, I. Kompatsiaris, "Finding Semantically Related Videos in Closed Collections", in book "Video Verification in the Fake News Era", V. Mezaris, L. Nixon, S. Papadopoulos, D. Teyssou (Eds.), pp. 127-159, Springer, 2019. DOI: 10.1007/978-3-030-26752-0_5
  3. G. Mercier, F. Markatopoulou, R. Cozien, M. Zampoglou, E. Apostolidis, A. Metsai, S. Papadopoulos, V. Mezaris, I. Patras, I. Kompatsiaris, "Detecting Manipulations in Video", in book "Video Verification in the Fake News Era", V. Mezaris, L. Nixon, S. Papadopoulos, D. Teyssou (Eds.), pp. 161-189, Springer, 2019. DOI: 10.1007/978-3-030-26752-0_6
  4. V. Mezaris, L. Nixon, S. Papadopoulos, D. Teyssou (Eds.), "Video Verification in the Fake News Era", Springer, 2019. DOI: 10.1007/978-3-030-26752-0
  5. O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris, "Verification of Web Videos Through Analysis of Their Online Context", in Video Verification in the Fake News Era, Springer, Cham, 2019, pp. 191–221.
  6. G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris, "Finding Near-Duplicate Videos in Large-Scale Collections", in Video Verification in the Fake News Era, Springer, Cham, 2019, pp. 91–126.
  7. M. Schinas, S. Papadopoulos, I. Kompatsiaris, P. Mitkas, "Event Detection and Retrieval on Social Media", 2018, arXiv preprint arXiv:1807.03675. (accepted in book “Social Media Analytics: Advances and Applications” to be published by CRC Press)
  8. G. Kalpakis, T. Tsikrika, I. Gialampoukidis, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, "Analysis of Suspended Terrorism-Related Content on Social Media", 2018, In Community-Oriented Policing and Technological Innovations, SpringerBriefs in Policing, Springer.
  9. E. Spyromitros-Xioufs, A. Moumtzidou, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, A. Georgoulias, G. Alexandri, K. Kourtidis, "Towards improved air quality monitoring using publicly available sky images", In Multimedia Technologies for Environmental & Biodiversity Informatics, 2018. (accepted for publication)
  10. D. Ververidis, S. Nikolopoulos, S. Papadopoulos, I. Kompatsiaris, "Citizen Sensing for Reality mining in urban spaces", chapter in book Network Design and Optimization for Smart Cities, Ed. Konstantinos Gakis, Panos Pardalos. World Scientific, Vol. 8, Mar. 2017, 400pp, ISBN-978-981-3200-00-5.
  11. I. Kompatsiaris, S. Diplaris, S. Papadopoulos, "Collective Intelligence", Overview. In: Alhajj, R.; Rokne, J. (eds.), Encyclopedia of Social Networks and Mining (ESNAM, 2nd edition), Springer, 2017, DOI: 10.1007⁄978-1-4614-7163-9_106-1
  12. G. Paliouras, S. Papadopoulos, D. Vogiatzis, I. Kompatsiaris, "User Community Discovery", 2015, Human-Computer Interaction Series, 155 pages, Springer
  13. S. Papadopoulos, A. Popescu, I. Kompatsiaris, "Tourism knowledge discovery in social multimedia.", In Encyclopedia of Information Science and Technology, Third Edition (pp. 3666-3675). IGI Global. (2015).
  14. I. Kompatsiaris, S. Diplaris, S. Papadopoulos, "Collective Intelligence", Overview. In: Alhajj, R.; Rokne, J. (eds.), Encyclopedia of Social Networks and Mining (ESNAM), Springer (2014), pp. 177-189
  15. S. Papadopoulos, A. Vakali, I. Kompatsiaris, "Community Detection in Collaborative Tagging Systems", In Book Community-built Database: Research and Development, edited by Dr. Eric Pardede, Springer, May 2011.
  16. S. Nikolopoulos, E. Chatzilari, E. Giannakidou, S. Papadopoulos, I. Kompatsiaris, A. Vakali, "Leveraging Massive User Contributions for Knowledge Extraction",in book Next Generation Data Technologies for Collective Computational Intelligence, Nik Bessis and Fatos Xhafa (Eds.), book series: Studies in Computational Intelligence, vol. 352, Springer 2011, ISBN: 978-3-642-20343-5.
  17. S. Diplaris, A. Sonnenbichler, T. Kaczanowski, P. Mylonas, A. Scherp, M. Janik, S. Papadopoulos, M. Ovelgoenne, I. Kompatsiaris, "Emerging, collective intelligence for personal, organisational and social use.", Next generation data technologies for collective computational intelligence, 527-573. (2011).
  18. D. Tsatsou, S. Papadopoulos, I. Kompatsiaris, P. C. Davis, "Distributed Technologies for Personalized Advertisement Delivery", in Online Multimedia Advertising: Techniques and Technologies, Xian-Sheng Hua, Tao Mei, Alan Hanjalic (editors), IGI Global, 2011
  19. M. Giatsoglou, S. Papadopoulos, A. Vakali, "Massive graph management for the web and web 2.0.", New Directions in Web Data Management 1, 19-58. (2011).
  20. S. Papadopoulos, F. Menemenis, A. Vakali, I. Kompatsiaris, "Analysis of Content Popularity in Social Bookmarking Systems.", In Social Computing: Concepts, Methodologies, Tools, and Applications (pp. 2069-2095). IGI Global. (2010).
  21. S. Papadopoulos, F. Menemenis, A. Vakali, I. Kompatsiaris, "Analysis of Content Popularity in Social Bookmarking Systems", In book Evolving Application Domains of Data Warehousing and Mining: Trends and Solutions, edited by Dr. Pedro Furtado, IGI Publishing, Sep 2009
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