Publications

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In Press
Nikolopoulos, S, Chatzilari E, Giannakidou E, Papadopoulos S, Kompatsiaris I, Vakali A.  In Press.  Leveraging Massive User Contributions for Knowledge Extraction. Next Generation Data Technologies for Collective Computational Intelligence.
Papadopoulos, S, Vakali A, Kompatsiaris I.  In Press.  Community Detection in Collaborative Tagging Systems. Community-built Database: Research and Development.
Sidiropoulos, P, Mezaris V, Kompatsiaris I, Kittler J.  In Press.  Differential Edit Distance: A metric for scene segmentation evaluation. IEEE Transactions on Circuits and Systems for Video Technology.
Sidiropoulos, P, Mezaris V, Kompatsiaris I, Meinedo H, Bugalho M, Trancoso I.  In Press.  Temporal video segmentation to scenes using high-level audiovisual features. IEEE Transactions on Circuits and Systems for Video Technology.
Papadopoulos, S, Kompatsiaris Y, Vakali A, Spyridonos P.  In Press.  Community Detection in Social Media. Data Mining and Knowledge Discovery Journal (Springer).
2012
Alexopoulos, P, Ruiz C.  2012.  Optimizing Geographical Entity and Scope Resolution in Texts using Non-Geographical Semantic Information. 6th International Conference on Advances in Semantic Processing (SEMAPRO 2012).
2011
Moumtzidou, A, Sidiropoulos P, Vrochidis S, Gkalelis N, Nikolopoulos S, Mezaris V, Kompatsiaris I, Patras I.  2011.  ITI-CERTH participation to TRECVID 2011. TRECVID 2011 Workshop.
Mezaris, V, Scherp A, Jain R, Kankanhalli M, Zhou H, Zhang J, Wang L, Zhang Z.  2011.  Modeling and Representing Events in Multimedia. ACM Multimedia 2011.
Papadopoulos, S, Troncy R, Mezaris V, Huet B, Kompatsiaris I.  2011.  Social Event Detection at MediaEval 2011: Challenges, Dataset and Evaluation. MediaEval 2011 Workshop.
Papadopoulos, S, Zigkolis C, Kompatsiaris Y, Vakali A.  2011.  CERTH @ MediaEval 2011 SED Task. MediaEval 2011 Workshop.
Mezaris, V, Sidiropoulos P, Kompatsiaris I.  2011.  Improving interactive video retrieval by exploiting automatically-extracted video structural semantics. Fifth IEEE International Conference on Semantic Computing (ICSC 2011).
Papadopoulos, G.T., Saathoff C, Escalante HJ, Mezaris V, Kompatsiaris I, Strintzis MG.  2011.  A Comparative Study of Object-level Spatial Context Techniques for Semantic Image Analysis. Computer Vision and Image Understanding. 115(9)
Gkalelis, N, Mezaris V, Kompatsiaris I.  2011.  High-level event detection in video exploiting discriminant concepts. 9th International Workshop on Content-Based Multimedia Indexing (CBMI 2011).
Zigkolis, C, Papadopoulos S, Kompatsiaris I, Vakali A.  2011.  Detecting the long tail of Points of Interest in tagged photo collections. 9th International Workshop on Content-Based Multimedia Indexing (CBMI 2011).
Chatzilari, E, Nikolopoulos S, Papadopoulos S, Zigkolis C, Kompatsiaris I.  2011.  Semi-Supervised object recognition using flickr images. 9th International Workshop on Content-Based Multimedia Indexing (CBMI 2011).
Gkalelis, N, Mezaris V, Kompatsiaris I.  2011.  Mixture subclass discriminant analysis. IEEE Signal Processing Letters. 18(5)
Papadopoulos, S, Zigkolis C, Kapiris S, Kompatsiaris Y, Vakali A.  2011.  City exploration by use of spatio-temporal analysis and clustering of user contributed photos. ACM International Conference on Multimedia Retrieval (ICMR 2011).
Tsampoulatidis, I, Gkalelis N, Dimou A, Mezaris V, Kompatsiaris I.  2011.  High-level Event Detection System Based on Discriminant Visual Concepts. ACM International Conference on Multimedia Retrieval (ICMR 2011).
Athanasopoulos, A, Dimou A, Mezaris V, Kompatsiaris I.  2011.  GPU Acceleration for Support Vector Machines. 12th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2011).
Sidiropoulos, P, Mezaris V, Kompatsiaris I, Meinedo H, Bugalho M, Trancoso I.  2011.  Video Scene Segmentation System Using Audio-Visual Features. 12th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2011).
Papadopoulos, S, Zigkolis C, Kompatsiaris Y, Vakali A.  2011.  Cluster-based Landmark and Event Detection on Tagged Photo Collections. IEEE Multimedia Magazine. 18(1)
Nikolopoulos, S, Giannakidou E, Kompatsiaris I, Patras I, Vakali A.  2011.  Combining multi-modal features for social media analysis. Social Media Modeling and Computing.
Papapetrou, O, Siberski W, Siersdorfer S.  2011.  Collaborative Classification over P2P networks. WWW'11 (poster session).
Papapetrou, O, Chen L.  2011.  XStreamCluster: An efficient algorithm for clustering of streaming structured data. DASFAA.
Papadopoulos, G.T., Mezaris V, Kompatsiaris I, Strintzis MG.  2011.  Joint Modality Fusion and Temporal Context Exploitation for Semantic Video Analysis. EURASIP Journal on Advances in Signal Processing. 2011:89

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