D. Giomelakis, O. Papadopoulou, S. Papadopoulos, A. Veglis. Verification of News Video Content: Findings from a Study of Journalism Students. Journalism Practice. Aug 2021

P. Avgoustinakis, G. Kordopatis-Zilos, S. Papadopoulos, A. L. Symeonidis, I. Kompatsiaris. Audio-based Near-Duplicate Video Retrieval with Audio Similarity Learning. In Proceedings of the IEEE International Conference on Pattern Recognition.

O. Papadopoulou, G. Kordopatis-Zilos, S. Papadopoulos. MeVer team tackling Coronavirus and 5G conspiracy using ensemble classification based on BERT. In Proceedings of the MediaEval 2020.

P. Charitidis, G. Kordopatis-Zilos, S. Papadopoulos, Y. Kompatsiaris. Investigating the Impact of Pre-processing and Prediction Aggregation on the DeepFake Detection Task In Proceedings of the Conference for Truth and Trust Online.

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.

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.

E. Ntoutsi, P. Fafalios, U. Gadiraju, V. Iosifidis, W. Nejdl, M.E. 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.

G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris, I. ViSiL: Fine-grained Spatio-Temporal Video Similarity Learning. In Proceedings of the IEEE International Conference on Computer Vision (pp. 6351-6360).

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 - colocated with SIGIR 2019.

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 (pp. 91-126), Springer, 2019. DOI: 10.1007⁄978-3-030-26752-0_4

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

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

O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. Verification of Web Videos Through Analysis of Their Online Context. In book “Video Verification in the Fake News Era”, V. Mezaris, L. Nixon, S. Papadopoulos, D. Teyssou (Eds.), pp 191-221, Springer, 2019. DOI:10.1007⁄978-3-030-26752-0_7

G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris. FIVR: Fine-grained incident video retrieval. IEEE Transactions on Multimedia, 21(10), 2638-2652.

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 (pp. 924-928).

O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. A Corpus of Debunked and Verified User-Generated Videos. Online Information Review, Feb. 2019

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. 361-373, Jan. 2019

S. E. Middleton, G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris. Location extraction from social media: Geoparsing, location disambiguation, and geotagging. ACM Transactions on Information Systems (TOIS), 36(4), 40.

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, Volume 54, Jul. 2018, Pages 155-170, Elsevier 2018

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, Mar. 2018, Pages 1-27, Springer 2017

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, Mar. 2018, Volume 7, Issue 1, Pages 71–86, Springer 2017

S. E. Middleton, S. Papadopoulos, I. Kompatsiaris. Social computing for verifying social media content in breaking news. IEEE Internet Computing, 22(2), 83-89.

V. Mezaris, L. Nixon, S. Papadopoulos, J. Spangenberg. MuVer17 – First International Workshop on Multimedia Verification. Proc. ACM Multimedia 2017, Mountain View, CA, USA, Oct. 2017

G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris. Near-Duplicate Video Retrieval with Deep Metric Learning. 5th Workshop on Web-scale Vision and Social Media (ICCV 2017), Venice, Italy, Oct. 2017

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. 1st International Workshop on Multimedia Verification at the ACM Multimedia Conference, Mountain View, CA, USA, Oct. 2017

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.

G. Rizos, S. Papadopoulos, I. Kompatsiaris. Multilabel user classification using the community structure of online networks. PloS one, 12(3), e0173347.

G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris. Geotagging text content with language models and feature mining. Proceedings of the IEEE, 105(10), 1971-1986.

C. Boididou, S. Papadopoulos, L. Apostolidis, I. Kompatsiaris. Learning to Detect Misleading Content on Twitter. ACM International Conference on Multimedia Retrieval (ICMR) 2017, Bucharest, Romania, Jun. 2017

O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. Web Video Verification using Contextual Cues 2nd International Workshop on Multimedia Forensics and Security (MFSec), co-located with the ACM International Conference on Multimedia Retrieval (ICMR) 2017, Bucharest, Romania, Jun. 2017

K. Konstantinidis, S. Papadopoulos, I. Kompatsiaris. Exploring Twitter communication dynamics with evolving community analysis. PeerJ Computer Science, 3, e107.

M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. Large-scale evaluation of splicing localization algorithms for web images. Multimedia Tools and Applications, 76(4), 4801-4834.

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, Jan. 2017

M. Zampoglou, S. Papadopoulos, Y. Kompatsiaris, J. Spangenberg. A web-based service for disturbing image detection. Proc. 23rd Int. Conf. on MultiMedia Modeling (MMM’17), Reykjavik, Iceland, Jan. 2017

C. Boididou, S. E. Middleton, S. Papadopoulos, D. Nguyen, D. Tien, M. Riegler, I. Kompatsiaris. The VMU participation @ verifying multimedia use 2016. In MediaEval 2016

G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris. In-depth exploration of geotagging performance using sampling strategies on yfcc100m. In Proceedings of the 2016 ACM Workshop on Multimedia COMMONS (pp. 3-10). ACM.

G. Kordopatis-Zilos, A. Popescu, S. Papadopoulos, I. Kompatsiaris. Placing Images with Refined Language Models and Similarity Search with PCA-reduced VGG Features. In MediaEval 2016.

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 Transactions on Information Systems (TOIS), 34(3), 14.

M. Zampoglou, S. Papadopoulos, Y. Kompatsiaris, R. Bouwmeester, J. Spangenberg. Web and social media image forensics for news professionals. In Tenth International AAAI Conference on Web and Social Media.

C. Boididou, K. Andreadou, S. Papadopoulos, D. T. Dang-Nguyen, G. Boato, M. Riegler, I. Kompatsiaris. Verifying Multimedia Use at MediaEval 2015. In MediaEval 2015.

G. Kordopatis-Zilos, A. Popescu, S. Papadopoulos, I. Kompatsiaris. CERTH/CEA LIST at MediaEval Placing Task 2015. In MediaEval 2015.

C. Boididou, S. Papadopoulos, D. T. Dang-Nguyen, G. Boato, I. Kompatsiaris. The CERTH-UNITN Participation@ Verifying Multimedia Use 2015. In MediaEval 2015.

M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. Detecting image splicing in the wild (web). In 2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) (pp. 1-6). IEEE.

G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris. Geotagging social media content with a refined language modelling approach. In Pacific-Asia Workshop on Intelligence and Security Informatics (pp. 21-40). Springer, Cham.

K. Andreadou, S. Papadopoulos, L. Apostolidis, A. Krithara, I. Kompatsiaris. Media REVEALr: A social multimedia monitoring and intelligence system for web multimedia verification. In Pacific-Asia Workshop on Intelligence and Security Informatics (pp. 1-20). Springer

G. Kordopatis-Zilos, G. Orfanidis, S. Papadopoulos, I. Kompatsiaris. SocialSensor at MediaEval Placing Task 2014. In MediaEval 2014.

C. Boididou, S. Papadopoulos, I. Kompatsiaris, S. Schifferes, N. Newman. Challenges of computational verification in social multimedia. In Proceedings of the 23rd International Conference on World Wide Web (pp. 743-748). ACM.

D. Giomelakis, O. Papadopoulou, S. Papadopoulos, A. Veglis. Verification of News Video Content: Findings from a Study of Journalism Students. Journalism Practice. Aug 2021

E. Ntoutsi, P. Fafalios, U. Gadiraju, V. Iosifidis, W. Nejdl, M.E. 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.

G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris. FIVR: Fine-grained incident video retrieval. IEEE Transactions on Multimedia, 21(10), 2638-2652.

O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. A Corpus of Debunked and Verified User-Generated Videos. Online Information Review, Feb. 2019

S. E. Middleton, G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris. Location extraction from social media: Geoparsing, location disambiguation, and geotagging. ACM Transactions on Information Systems (TOIS), 36(4), 40.

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, Volume 54, Jul. 2018, Pages 155-170, Elsevier 2018

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, Mar. 2018, Pages 1-27, Springer 2017

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, Mar. 2018, Volume 7, Issue 1, Pages 71–86, Springer 2017

S. E. Middleton, S. Papadopoulos, I. Kompatsiaris. Social computing for verifying social media content in breaking news. IEEE Internet Computing, 22(2), 83-89.

G. Rizos, S. Papadopoulos, I. Kompatsiaris. Multilabel user classification using the community structure of online networks. PloS one, 12(3), e0173347.

K. Konstantinidis, S. Papadopoulos, I. Kompatsiaris. Exploring Twitter communication dynamics with evolving community analysis. PeerJ Computer Science, 3, e107.

M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. Large-scale evaluation of splicing localization algorithms for web images. Multimedia Tools and Applications, 76(4), 4801-4834.

P. Avgoustinakis, G. Kordopatis-Zilos, S. Papadopoulos, A. L. Symeonidis, I. Kompatsiaris. Audio-based Near-Duplicate Video Retrieval with Audio Similarity Learning. In Proceedings of the IEEE International Conference on Pattern Recognition.

O. Papadopoulou, G. Kordopatis-Zilos, S. Papadopoulos. MeVer team tackling Coronavirus and 5G conspiracy using ensemble classification based on BERT. In Proceedings of the MediaEval 2020.

P. Charitidis, G. Kordopatis-Zilos, S. Papadopoulos, Y. Kompatsiaris. Investigating the Impact of Pre-processing and Prediction Aggregation on the DeepFake Detection Task In Proceedings of the Conference for Truth and Trust Online.

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.

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.

G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris, I. ViSiL: Fine-grained Spatio-Temporal Video Similarity Learning. In Proceedings of the IEEE International Conference on Computer Vision (pp. 6351-6360).

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 - colocated with SIGIR 2019.

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 (pp. 924-928).

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. 361-373, Jan. 2019

V. Mezaris, L. Nixon, S. Papadopoulos, J. Spangenberg. MuVer17 – First International Workshop on Multimedia Verification. Proc. ACM Multimedia 2017, Mountain View, CA, USA, Oct. 2017

G. Kordopatis-Zilos, S. Papadopoulos, I. Patras, I. Kompatsiaris. Near-Duplicate Video Retrieval with Deep Metric Learning. 5th Workshop on Web-scale Vision and Social Media (ICCV 2017), Venice, Italy, Oct. 2017

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. 1st International Workshop on Multimedia Verification at the ACM Multimedia Conference, Mountain View, CA, USA, Oct. 2017

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.

G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris. Geotagging text content with language models and feature mining. Proceedings of the IEEE, 105(10), 1971-1986.

C. Boididou, S. Papadopoulos, L. Apostolidis, I. Kompatsiaris. Learning to Detect Misleading Content on Twitter. ACM International Conference on Multimedia Retrieval (ICMR) 2017, Bucharest, Romania, Jun. 2017

O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. Web Video Verification using Contextual Cues 2nd International Workshop on Multimedia Forensics and Security (MFSec), co-located with the ACM International Conference on Multimedia Retrieval (ICMR) 2017, Bucharest, Romania, Jun. 2017

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, Jan. 2017

M. Zampoglou, S. Papadopoulos, Y. Kompatsiaris, J. Spangenberg. A web-based service for disturbing image detection. Proc. 23rd Int. Conf. on MultiMedia Modeling (MMM’17), Reykjavik, Iceland, Jan. 2017

C. Boididou, S. E. Middleton, S. Papadopoulos, D. Nguyen, D. Tien, M. Riegler, I. Kompatsiaris. The VMU participation @ verifying multimedia use 2016. In MediaEval 2016

G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris. In-depth exploration of geotagging performance using sampling strategies on yfcc100m. In Proceedings of the 2016 ACM Workshop on Multimedia COMMONS (pp. 3-10). ACM.

G. Kordopatis-Zilos, A. Popescu, S. Papadopoulos, I. Kompatsiaris. Placing Images with Refined Language Models and Similarity Search with PCA-reduced VGG Features. In MediaEval 2016.

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 Transactions on Information Systems (TOIS), 34(3), 14.

M. Zampoglou, S. Papadopoulos, Y. Kompatsiaris, R. Bouwmeester, J. Spangenberg. Web and social media image forensics for news professionals. In Tenth International AAAI Conference on Web and Social Media.

C. Boididou, K. Andreadou, S. Papadopoulos, D. T. Dang-Nguyen, G. Boato, M. Riegler, I. Kompatsiaris. Verifying Multimedia Use at MediaEval 2015. In MediaEval 2015.

G. Kordopatis-Zilos, A. Popescu, S. Papadopoulos, I. Kompatsiaris. CERTH/CEA LIST at MediaEval Placing Task 2015. In MediaEval 2015.

C. Boididou, S. Papadopoulos, D. T. Dang-Nguyen, G. Boato, I. Kompatsiaris. The CERTH-UNITN Participation@ Verifying Multimedia Use 2015. In MediaEval 2015.

M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. Detecting image splicing in the wild (web). In 2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) (pp. 1-6). IEEE.

G. Kordopatis-Zilos, S. Papadopoulos, I. Kompatsiaris. Geotagging social media content with a refined language modelling approach. In Pacific-Asia Workshop on Intelligence and Security Informatics (pp. 21-40). Springer, Cham.

K. Andreadou, S. Papadopoulos, L. Apostolidis, A. Krithara, I. Kompatsiaris. Media REVEALr: A social multimedia monitoring and intelligence system for web multimedia verification. In Pacific-Asia Workshop on Intelligence and Security Informatics (pp. 1-20). Springer

G. Kordopatis-Zilos, G. Orfanidis, S. Papadopoulos, I. Kompatsiaris. SocialSensor at MediaEval Placing Task 2014. In MediaEval 2014.

C. Boididou, S. Papadopoulos, I. Kompatsiaris, S. Schifferes, N. Newman. Challenges of computational verification in social multimedia. In Proceedings of the 23rd International Conference on World Wide Web (pp. 743-748). ACM.

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 (pp. 91-126), Springer, 2019. DOI: 10.1007⁄978-3-030-26752-0_4

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

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

O. Papadopoulou, M. Zampoglou, S. Papadopoulos, I. Kompatsiaris. Verification of Web Videos Through Analysis of Their Online Context. In book “Video Verification in the Fake News Era”, V. Mezaris, L. Nixon, S. Papadopoulos, D. Teyssou (Eds.), pp 191-221, Springer, 2019. DOI:10.1007⁄978-3-030-26752-0_7