Multimedia Retrieval – Multimodal Data Fusion and Analytics Group

VERGE in VBS 2023

N. Pantelidis, S. Andreadis, M. Pegia, A. Moumtzidou, D. Galanopoulos, K. Apostolidis, D. Touska, K. Gkountakos, I. Gialampoukidis, S. Vrochidis, V. Mezaris, and I. Kompatsiaris, “VERGE in VBS 2023” in MultiMedia Modeling: 29th International Conference. MMM 2023, Bergen, Norway, January 9–12, 2023, Proceedings, Part I. Springer-Verlag, Berlin, Heidelberg, 2023, pp. 658–664. https://doi.org/10.1007/978-3-031-27077-2_55.

VERGE in VBS 2021

S. Andreadis, A. Moumtzidou, K. Gkountakos, N. Pantelidis, K. Apostolidis, D. Galanopoulos, I. Gialampoukidis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, "VERGE in VBS 2021", Proc. 27th Int. Conf. on Multimedia Modeling (MMM2021), Prague, CZ, Springer LNCS vol. 12573, pp. 398–404, 22-24 June 2021. DOI:10.1007/978-3-030-67835-7_35

MuseHash: Supervised Bayesian Hashing for Multimodal Image Representation

M. Pegia, B. Þ. Jónsson, A. Moumtzidou, I. Gialampoukidis, S. Vrochidis, and I. Kompatsiaris, ”MuseHash: Super- vised Bayesian Hashing for Multimodal Image Representation” in ACM ICMR ’23: ACM International Conference on Multimedia Retrieval, June 10– 15, 2023, Thessaloniki, Greece. Proceedings of the 2023 ACM International Conference on Multimedia Retrieval, pp. 434–442, https://doi.org/10.1145/3591106.3592228.

M4D-MKLab/ITI-CERTH Participation in TREC Deep Learning Track 2022

A-M. Koufakis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, “M4D-MKLab/ITI-CERTH Participation in TREC Deep Learning Track 2022” in Proc. Text REtrieval Conference (TREC) 2022 Workshop, Gaithersburg, MD, USA, 14-18 Nov. 2022.

ITI-CERTH participation in ActEV and AVS Tracks of TRECVID 2022

K. Gkountakos, D. Galanopoulos, D. Touska, K. Ioannidis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, “ITI-CERTH participation in ActEV and AVS Tracks of TRECVID 2022”, Proc. TRECVID 2022 Workshop, Gaithersburg, MD, USA, 6 Dec. 2022.

BiasHash: A Bayesian Hashing Framework for Image Retrieval

M. Pegia, A. Moumtzidou, I.Gialampoukidis, B. T. Johnsson, S. Vrochidis, and I. Kompatsiaris "BiasHash: A Bayesian Hashing Framework for Image Retrieval", In the proceedings of the 2022 IEEE 14th Image, Video, and Multidimensional Signal Processing Workshop (IVMSP 2022), 26-29 June 2022, Nafplio, Greece. DOI: 10.1109/IVMSP54334.2022.9816233

M4D-MKLab/ITI-CERTH Participation in TREC Deep Learning Track 2021

A-Μ Koufakis, T. Tsikrika, S. Vrochidis, & I. Kompatsiaris, "M4D-MKLab/ITI-CERTH Participation in TREC Deep Learning Track 2021". Text REtrieval Conference (TREC).

ITI-CERTH participation in ActEV and AVS Tracks of TRECVID 2021

K. Gkountakos, D. Galanopoulos, D. Touska, K. Ioannidis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, "ITI-CERTH participation in ActEV and AVS Tracks of TRECVID 2021" in Proc. TRECVID 2021 Workshop, Gaithersburg, MD, USA (Virtual), 2021.

Interactive Video Retrieval Evaluation at a Distance – Comparing Sixteen Interactive Video Search Systems in a Remote Setting at the 10th Video Browser Showdown

S. Heller, V. Gsteiger, W. Bailer, C. Gurrin, B. Þ. Jónsson, Jakub Loko, Andreas Leibetseder, F. Mejzlík, L. Peška, L. Rossetto, K. Schall, K. Schoeffmann, H. Schuldt, F. Spiess, L.-D. Tran, L. Vadicamo, P. Veselý, S. Vrochidis, and J. Wu, "Interactive Video Retrieval Evaluation at a Distance - Comparing Sixteen Interactive Video Search Systems in a Remote Setting at the 10th Video Browser Showdown", International Journal of Multimedia Information Retrieval, 11, pages 1–18, 2022.

VERGE in VBS 2022

S. Andreadis, A. Moumtzidou, D. Galanopoulos, N. Pantelidis, K. Apostolidis, D. Touska, K. Gkountakos, M. Pegia, I. Gialampoukidis, S. Vrochidis, V. Mezaris and I. Kompatsiaris, "VERGE in VBS 2022", In Proceedings of the 28th International Conference on Multimedia Modelling (MMM2022), 5-8 April 2022, Phu Quoc, Vietnam.

A Task Category Space for User-Centric Comparative Multimedia Search Evaluations, 28th International Conference on Multimedia Modelling

J. Lokoc, L. Rossetto, W. Bailer, K. Schoeffmann, S. Vrochidis, C. Gurrin, S. Heller, L. Vadicamo, K. Barthel, L. Peška, J. Wu, B. Jónsson, "A Task Category Space for User-Centric Comparative Multimedia Search Evaluations", In Proceedings of the 28th International Conference on Multimedia Modelling (MMM2022), Phu Quoc, Vietnam, 6-10 June, 2022.

ITI-CERTH participation in TRECVID 2020

K. Gkountakos, D. Galanopoulos, M. Mpakratsas, D. Touska, A. Moumtzidou, K. Ioannidis, I. Gialampoukidis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, "ITI-CERTH participation in TRECVID 2020", Proc. TRECVID 2020 Workshop, Gaithersburg, MD, USA, Dec. 2020.

Proceedings of the AAMAS Workshop on Intelligent Conversation Agents in Home and Geriatric Care Applications co-located with the Federated AI Meeting (FAIM 2018)

E. Andre, T. W. Bickmore, S. Vrochidis, L. Wanner (Eds). (2018). Proceedings of the AAMAS Workshop on Intelligent Conversation Agents in Home and Geriatric Care Applications co-located with the Federated AI Meeting (FAIM 2018). ICAHGCA@AAMAS 2018, Stockholm, Sweden, 15 July, 2018. CEUR, Vol 2338.

Designing Attractive T-Learning Courses Applications for Interactive Digital TV

A. Ozolina, A. Kapenieks, B. Zuga, M. Jirgensons, F. Bellotti, S. Vrochidis, Y. Kompatsiaris, I. Tsampoulatidis. "Designing Attractive T-Learning Courses Applications for Interactive Digital TV". An-nual Proceedings of Vidzeme University College, ICTE in Regional Development, 2007, Valmiera, Latvia, pp 87-95, ISBN 9984-633-10-1.

T-Learning Technologies

S. Vrochidis, F. Bellotti, G. Bo, Linda Napoletano and I. Kompatsiaris. "T-Learning Technologies", in Encyclopedia of Information Science and Technology (2nd Edition). Mehdi Khosrow-Pour (Editor), IGI Global, vol. VIII, pp. 3765-3771, 1 October 2008.

An Integrated Framework for Personalized t-learning

F. Bellotti, S. Vrochidis, M. Pellegrino, I. Tsampoulatidis, P. Lhoas, G. Bo, A. De Gloria, I. Kompatsiaris. "An Integrated Framework for Personalized t-learning". in Cases on Transnational Learning and Technologically Enabled Environments, pages 118-135, Siran Mukerji and Purnendu Tripathi (Editors), IGI Global, ISBN13: 9781615207497, 31 January 2010.

Enhancing Patent Search with Content-based Image Retrieval

S. Vrochidis, A. Moumtzidou, I. Kompatsiaris. "Enhancing Patent Search with Content-based Image Retrieval". Professional Search in the Modern World, Lecture Notes in Computer Science Volume 8830, 31 January 2014, pp 250-273.

Query reformulation based on word embeddings: A comparative study

P. Panagiotou, G. Kalpakis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris. "Query reformulation based on word embeddings: A comparative study". Technology Advances and Support for Security Practitioners of the Security Informatics and Law Enforcement book series.

Multimodal Fusion of Big Multimedia Data, in Book: Big Data Analytics for Large-Scale Multimedia Search

I. Gialampoukidis, E. Chatzilari, S. Nikolopoulos, S. Vrochidis, I. Kompatsiaris. “Multimodal Fusion of Big Multimedia Data, in Book: Big Data Analytics for Large-Scale Multimedia Search”. 15 March 2019.

A Hybrid Ontology and Visual-based Retrieval Model for Cultural Heritage Multimedia Collections

S. Vrochidis, C. Doulaverakis, A. Gounaris, E. Nidelkou, L. Makris and I. Kompatsiaris. "A Hybrid Ontology and Visual-based Retrieval Model for Cultural Heritage Multimedia Collections". International Journal of Metadata, Semantics and Ontologies, Vol.3, No. 3, pp. 167-182, 28 February 2009.

A Technological Framework for the Authoring and Presentation of T-learning Courses

F. Bellotti, S. Vrochidis, S. Ramel, I. Tsampoulatidis, P. Lhoas, M. Pellegrino, G. Bo and I. Kompatsiaris. "A Technological Framework for the Authoring and Presentation of T-learning Courses". International Journal of Emerging Technologies in Learning (iJET), Vol 3, No4, pp 10-19,15 June 2008.

A T-learning Courses Development and Presentation Framework

F. Bellotti, S. Vrochidis, E. Parissi, P. Lhoas, D. Mathevon, M. Pellegrino, G. Bo and I. Kompatsiaris. "A T-learning Courses Development and Presentation Framework". IEEE Multidisciplinary Engineering Education Magazine, Vol 3, No 3, pp 69-76, 1 September 2008.

Towards Content-based Patent Image Retrieval; A Framework Perspective

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, 27 June 2009.

Utilizing Implicit User Feedback to Improve Interactive Video Retrieval

S. Vrochidis, I. Kompatsiaris and I. Patras. "Utilizing Implicit User Feedback to Improve Interactive Video Retrieval". In Ad-vances in Multimedia, Hindawi, vol. 2011, Article ID 310762, 18 pages, 24 March 2011.

Content-Based Binary Image Retrieval using the Adaptive Hierarchical Density Histogram

P. Sidiropoulos, S. Vrochidis, I. Kompatsiaris. "Content-Based Binary Image Retrieval using the Adaptive Hierarchical Density Histogram". Pattern Recognition Journal, Elsevier, Volume 44, Issue 4, pp 739-750, 18 August 2012.

Concept-based Patent Image Retrieval

S. Vrochidis, A. Moumtzidou, and I. Kompatsiaris. "Concept-based Patent Image Retrieval". World Patent Information Journal, Volume 34, Issue 4, pp. 292-303, 18 August 2012.

Environmental data extraction from heatmaps using the AirMerge system

V. Epitropou, T. Bassoukos, K. Karatzas, A. Karppinen, L. Wanner, S. Vrochidis, I. Kompatsiaris, J. Kukkonen. "Environmental data extraction from heatmaps using the AirMerge system". Multimedia Tools and Applications, May 2015. pp. 1-25, 7 May 2015.

Gaze Movement-driven Random Forests for Query Clustering in Automatic Video Annotation

S. Vrochidis, I. Patras and I. Kompatsiaris. "Gaze Movement-driven Random Forests for Query Clustering in Automatic Video Annotation". Multimedia Tools and Applications, 22 January 2016.

Interactive video search tools: a detailed analysis of the video browser showdown 2015

C. Cobarzan, K. Schoeffmann, W. Bailer, W. Hurst, A. Blazek, J. Lokoc, S. Vrochidis, K. Uwe Barthel, and L. Rossetto.“Interactive video search tools: a detailed analysis of the video browser showdown 2015”. Multimedia Tools Appl. 76, 5539-5571, 4 February 2017.

Multimedia retrieval based on non-linear graph-based fusion and partial least squares regression

I. Gialampoukidis, A. Moumtzidou, D. Liparas, T. Tsikrika, S. Vrochidis, I. Kompatsiaris. "Multimedia retrieval based on non-linear graph-based fusion and partial least squares regression". Multimedia Tools and Applications, 15 May 2017.

TENSOR: Retrieval and Analysis of Heterogeneous Online Content for Terrorist Activity Recognition

B. Akhgar, P. Bertrand, C. Chalanouli, T. Day, I. Fragkiadakis, H. Gibson, D. Kavallieros, E. Kermitsis, I. Kompatsiaris, E. Kyriakou, G. Leventakis, E. Lissaris, S. Mille, D. Myttas, T. Tsikrika, S. Vrochidis, U. Williamson. "TENSOR: Retrieval and Analysis of Heterogeneous Online Content for Terrorist Activity Recognition". Proceedings of the Estonian Academy of Se-curity Sciences: Secure Societies, 15 June 2017.

A multimodal analytics platform for journalists analysing large-scale, heterogeneous multilingual and multimedia content

S. Vrochidis, A. Moumtzidou, I. Gialampoukidis, D. Liparas, G. Casamayor, L. Wanner, N. Heise, T. Wagner, A. Bilous, E. Jamin, B. Simeonov, V. Alexiev, R. Busch, I. Arapakis, I. Kompatsiaris. “A multimodal analytics platform for journalists analysing large-scale, heterogeneous multilingual and multimedia content”. Frontiers in Robotics and AI, 5, 123, 29 October 2018.

Interactive Search or Sequential Browsing? A Detailed Analysis of the Video Browser Showdown 2018

J. Lokoc, G. Kovalcik, B. Munzer, K. Schoffmann, W. Bailer, R. Gasser, S. Vrochidis, P. Anh Nguyen, S. Rujikietgumjorn, K. Uwe Barthel. “Interactive Search or Sequential Browsing? A Detailed Analysis of the Video Browser Showdown 2018”. ACM Transactions on Multimedia Computing, Communications, and Applications 1 February 2019.

ITI-CERTH participation to TRECVID 2012

A. Moumtzidou, N. Gkalelis, P. Sidiropoulos, M. Dimopoulos, S. Nikolopoulos, S. Vrochidis, V. Mezaris, I. Kompatsiaris,"ITI-CERTH participation to TRECVID 2012", in Proceedings of TRECVID 2012 Workshop, November 2012, Gaithersburg, MD, USA.

ITI-CERTH participation to TRECVID 2013

F. Markatopoulou, A. Moumtzidou, C. Tzelepis, K. Avgerinakis, N. Gkalelis, S. Vrochidis, V. Mezaris, and I. Kompatsiaris, "ITI-CERTH participation to TRECVID 2013", in TRECVID 2013 Workshop, Gaithersburg, MD, USA, 2013.

VERGE: An Interactive Search Engine for Browsing Video Collections

A. Moumtzidou, K. Avgerinakis, E. Apostolidis, V. Aleksic, F. Markatopoulou, C. Papagiannopoulou, S. Vrochidis, V. Mezaris, R. Busch, I. Kompatsiaris,"VERGE: An Interactive Search Engine for Browsing Video Collections", in Proc. Video Browser Showdown (VBS'14) at the 20th Int. Conf. on MultiMedia Modeling (MMM'14), Dublin, Ireland, Springer LNCS vol. 8326, pp. 411-414, January 2014.

ITI-CERTH participation to TRECVID 2014

N. Gkalelis, F. Markatopoulou, A. Moumtzidou, D. Galanopoulos, K. Avgerinakis, N. Pittaras, S. Vrochidis, V. Mezaris, I. Kompatsiaris, I. Patras,"ITI-CERTH participation to TRECVID 2014", in Proc. TRECVID 2014 Work-shop, Orlando, FL, USA, November 2014.

News articles classification using Random Forests and weighted multimodal features

D. Liparas, Y. Hacohen-Kerner, A. Moumtzidou, S. Vrochidis and I. Kompatsiaris,"News articles classification using Random Forests and weighted multimodal features", in Proceedings of the 3rd Open Interdisciplinary MUMIA Conference and 7th Information Retrieval Facility Conference (IRFC2014), 10 - 12 November 2014, Copenhagen, Denmark, LNCS 8849, pp. 63-75, Berlin: Springer-Verlag, 2014.

VERGE: A Multimodal Interactive Video Search Engine

A. Moumtzidou, K. Avgerinakis, E. Apostolidis, F. Markatopoulou, K. Apostolidis, T. Mironidis, S. Vrochidis, V. Mezaris, Y. Kompatsiaris, I. Patras,"VERGE: A Multimodal Interactive Video Search Engine", in Proc. 21st Int. Conf. on MultiMedia Modeling (MMM15), Sydney, Australia, Jan. 2015. https://doi.org/10.1007/978-3-319-14442-9_23

MULTISENSOR: Development of Multimedia Content Integration Technologies for Journalism, Media Monitoring and International Exporting Decision Support

S. Vrochidis, I. Kompatsiaris, G. Casamayor, I. Arapakis, R. Busch, V. Alexiev, E. Jamin, M. Jugov, N. Heise, T. Forrellat, D. Liparas, L. Wanner, I. Miliaraki, V. Aleksic, K. Simov, A. M. Soro, M. Eckhoff, T. Wagner, M. Puigbo,"MULTISENSOR: Development of Multimedia Content Integration Technologies for Journalism, Media Monitoring and International Exporting Decision Support", in 2015 IEEE International Conference on Multimedia and Expo (ICME 2015), Turin, Italy, June 29 - July 3, 2015.

VERGE IN VBS 2018

A. Moumtzidou, S. Andreadis, F. Markatopoulou, D. Galanopoulos, I. Gialampoukidis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, I. Patras, "VERGE IN VBS 2018", in International Conference on Multimedia Modeling 2018.

Concept Detection on Multimedia Web Resources about Home Made Explosives

G. Kalpakis, T. Tsikrika, F. Markatopoulou, N. Pittaras, S. Vrochidis, V. Mezaris, I. Patras, and I. Kompatsiaris, "Concept Detection on Multimedia Web Resources about Home Made Explosives", in Proceedings of the International Workshop on Multimedia Forensics and Security (MFSec 2015), held in conjunction with the 10th International Conference on Availability, Reliability and Security, Toulouse, France, 2015. DOI: 10.1109/ARES.2015.85

A Framework for the Discovery, Analysis, and Retrieval of Multimedia Homemade Explosives Information on the Web

T. Tsikrika, G. Kalpakis, S. Vrochidis, I. Kompatsiaris, I. Paraskakis, I. Kavasidis, J. Middleton, and U. Williamson, "A Framework for the Discovery, Analysis, and Retrieval of Multimedia Homemade Explosives Information on the Web", in Proceedings of the International Workshop on Multimedia Forensics and Security (MFSec 2015), held in conjunction with the 10th International Conference on Availability, Reliability and Security, Toulouse, France, 2015. https://doi.org/10.1109/ARES.2015.86

ITI-CERTH participation to TRECVID 2015

F. Markatopoulou, A. Ioannidou, C. Tzelepis, T. Mironidis, D. Galanopoulos, S. Arestis-Chartampilas, N. Pittaras, K. Avgerinakis, N. Gkalelis, A. Moumtzidou, S. Vrochidis, V. Mezaris, I. Kompatsiaris, I. Patras, "ITI-CERTH participation to TRECVID 2015", in Proc. TRECVID 2015 Workshop, Gaithersburg, MD, USA, Nov. 2015.

Fast Visual Vocabulary Construction for Image Retrieval using Skewed-Split k-d trees

I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris, "Fast Visual Vocabulary Construction for Image Retrieval using Skewed-Split k-d trees", In International Conference on Multimedia Modeling, pp. 466-477. Springer In-ternational Publishing, 2016. https://doi.org/10.1007/978-3-319-27671-7_39

VERGE: A Multimodal Interactive Search Engine for Video Browsing and Retrieval

A. Moumtzidou, T. Mironidis, E. Apostolidis, F. Markatopoulou, A. Ioannidou, I. Gialampoukidis, K. Avgerinakis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, I. Patras,"VERGE: A Multimodal Interactive Search Engine for Video Browsing and Retrieval", in Proc. Video Browser Showdown (VBS'16) at the 22nd Int. Conf. on MultiMedia Modeling (MMM'16), Miami, USA, 4 January 2016. https://doi.org/10.1007/978-3-319-27674-8_39

Towards a Multimedia Knowledge-Based Agent with Social Competence and Human Interaction Capabilities

L. Wanner, J. Blat, S. Dasiopoulou, M. Dominguez, G. Llorach, S. Mille, F. Sukno, E. Kamateri, S. Vrochidis, I. Kompatsiaris, E. Andre, F. Lingenfelser, G. Mehlmann, A. Stam, L. Stellingwerff, B. Vieru, L. Lamel, W. Minker, L. Pragst, Stefan Ultes,"Towards a Multimedia Knowledge-Based Agent with Social Competence and Human Interaction Capabilities", 1st International Workshop on Multimedia Analysis and Retrieval for Multimodal Interaction (MARMI 2016), New York, USA, June 6, 2016. https://doi.org/10.1145/2927006.2927011

Retrieval of Multimedia objects by Fusing Multiple Modalities

I. Gialampoukidis, A. Moumtzidou, T. Tsikrika, S. Vrochidis and I. Kompatsiaris, "Retrieval of Multimedia objects by Fusing Multiple Modalities", in Proceedings of the 2016 ACM on International Conference on Multimedia Retrieval, pp. 359-362, ACM. https://dl.acm.org/doi/10.1145/2911996.2912068

A Multimedia Interactive Search Engine based on Graph-based and Non-linear Multimodal Fusion

A. Moumtzidou, I. Gialampoukidis, T. Mironidis, D. Liparas, S. Vrochidis, I. Kompatsiaris, "A Multimedia Interactive Search Engine based on Graph-based and Non-linear Multimodal Fusion", in 14th International Workshop on Content-Based Multimedia Indexing (CBMI), 2016, IEEE, 2016. DOI: 10.1109/CBMI.2016.7500276

A hybrid graph-based and non-linear late fusion approach for multimedia retrieval

I. Gialampoukidis, A. Moumtzidou, D. Liparas, S. Vrochidis, I. Kompatsiaris, "A hybrid graph-based and non-linear late fusion approach for multimedia retrieval", in 14th International Workshop on Content-Based Multimedia Indexing (CBMI), 2016, pp. 1-6, IEEE, 2016.

A Hybrid Recommendation System Based on Density-Based Clustering

T. Tsikrika, S. Symeonidis, I. Gialampoukidis, A. Satsiou, S. Vrochidis, I. Kompatsiaris, "A Hybrid Recommendation System Based on Density-Based Clustering", ”. In INSCI 2017 International Workshops, IFIN, DATA ECONOMY, DSI, and CONVERSATIONS. Diplaris S., Satsiou A., Folstad A., Vafopoulos M., Vilarinho T. (eds), Internet Science., Revised Selected Papers. Lecture Notes in Computer Science, vol 10750. Springer, Cham.

EMR ’14: Proceedings of the 1nd International Workshop on Environmental Multimedia Retrieval

S. Vrochidis, K. Karatzas, A. Karppinen, A. Joly, (Eds.). (2014). EMR ’14: Proceedings of the 1nd International Workshop on Environmental Multimedia Retrieval. Glasgow, UK, 1 April 2014, CEUR, Vol 1222.

EMR ’15: Proceedings of the 2nd International Workshop on Environmental Multimedia Retrieval

S. Vrochidis, K. Karatzas, A. Karppinen, A. Joly, A. B. Albu (Eds.). (2015). EMR ’15: Proceedings of the 2nd International Workshop on Environmental Multimedia Retrieval. Shanghai, China,Association for Computing Machinery, 30 June 2015.

MARMI ’16: Proceedings of the 1st International Workshop on Multimedia Analysis and Retrieval for Multimodal Interaction

S. Vrochidis, L. Wanner, E. Andre, S. E. Schwartz (Eds.). (2016). MARMI ’16: Proceedings of the 1st International Workshop on Multimedia Analysis and Retrieval for Multimodal Interaction. New York, USA, 2016. Association for Computing Machinery, 30 June 2016.

Guest Editorial: Environmental Multimedia Retrieval

S. Vrochidis, K. Karatzas, A. Karppinen, A. Joly (Eds). (2016). Guest Editorial: Environmental Multimedia Retrieval. Multimedia Tools Appl. 75(3): 1557-1562, 28 January 2016.

MFSec ’17: Proceedings of the 2nd International Workshop on Multimedia Forensics and Security

M. Zampoglou, S. Vrochidis, A. Rocha, V. Katos (Eds.). (2017). MFSec '17: Proceedings of the 2nd International Workshop on Multimedia Forensics and Security. Bucharest, Romania, 2017. Association for Computing Machinery, 30 June 2017.

Proceedings of the AAMAS Workshop on Intelligent Conversation Agents in Home and Geriatric Care Applications co-located with the Federated AI Meeting (FAIM 2018)

1st International Workshop on Multimedia Analysis for Architecture, Design and Virtual Reality Games (MADVR 2018)

K. Avgerinakis, F. Bellotti, M. Vergauwen, L. Wanner and S. Vrochidis. "1st International Workshop on Multimedia Analysis for Architecture, Design and Virtual Reality Games (MADVR 2018)". 2018 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct), Munich, Germany, 16-20 October 2018, pp. 280-280.

MultiMedia Modeling (Part II)

I. Kompatsiaris, B. Huet, V. Mezaris, C. Gurrin, W.-H. Cheng, S. Vrochidis (Eds.). “MultiMedia Modeling”. 25th Int. Conf., MMM 2019, Thessaloniki, Greece, Proceedings, Part II, Springer LNCS vol. 11296, 8 January 2019.

MultiMedia Modeling (Part I)

Proceedings of the Eleventh International Conference of the CLEF Association (CLEF 2020)

A. Arampatzis, E. Kanoulas, T. Tsikrika, S. Vrochidis, H. Joho, C. Lioma, K. Eickhoff, A. N ev eol, L. Cappellato, and N. Ferro, editors. Experimental IR Meets Multilinguality, Multimodality, and Interaction. Proceedings of the Eleventh International Conference of the CLEF Association (CLEF 2020). Lecture Notes in Computer Science (LNCS) 12260, Springer, Heidelberg, Germany, 22-25 September 2020.

Report on CLEF 2020

A. Arampatzis, L. Cappellato, L., E. Kanoulas, T. Tsikrika, S. Vrochidis, H. Joho, C. Lioma, A. N ev eol, L. Cappellato, and N. Ferro. Report on CLEF 2020. ACM SIGIR Forum, Vol. 54 No. 2 December 2020.

Multimedia Tools and Applications for Environmental & Biodiversity Informatics

A. Joly, S. Vrochidis, K. Karatzas, A. Karppinen, P. Bonnet (2018). Multimedia Tools and Applications for Environmental & Biodiversity Informatics. 221 pages, Springer.

Big Data Analytics for Large-Scale Multimedia Retrieval

S. Vrochidis, B. Huet, E. Chang, I. Kompatsiaris (2019). Big Data Analytics for Large-Scale Multimedia Retrieval. 348 Pages, Wiley.

COST292 experimental framework for TRECVID 2006

J. Calic, P. Kramer, U. Naci, S. Vrochidis, S. Aksoy, Q. Zhang, J. Benois-Pineau, A. Saracoglu, C. Doulaverakis, R. Jarina, N. Campbell, V. Mezaris, I. Kompatsiaris, E. Spyrou, G. Koumoulos, Y. Avrithis, A. Dalkilic, A. Alatan, A. Hanjalic, E. Izquierdo, "COST292 experimental framework for TRECVID 2006", in 4th TRECVID Workshop, Gaithersburg, USA, November 2006.

ITI interactive video retrieval system

S. Vrochidis, V. Mezaris and I. Kompatsiaris, "ITI interactive video retrieval system", in Conference On Image And Video Retrieval, Proceedings of the 6th ACM international, Amsterdam, The Netherlands, July 2007, p. 648. https://doi.org/10.1145/1282280.1282375

ITI-CERTH participation in TRECVID 2018

K. Avgerinakis, A. Moumtzidou, D. Galanopoulos, G. Orfanidis, S. Andreadis, F. Markatopoulou, E. Batziou, K. Ioannidis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, "ITI-CERTH participation in TRECVID 2018", in Proc. TRECVID 2018 Workshop, Gaithersburg, MD, USA, Nov. 2018.

Hybrid Ontology and Visual-based Retrieval for Cultural Heritage Multimedia Libraries

S. Vrochidis, C. Doulaverakis, L. Makris, A. Gounaris, E. Nidelkou, I. Kompatsiaris and M. G. Strintzis, "Hybrid Ontology and Visual-based Retrieval for Cultural Heritage Multimedia Libraries", in 14th International Conference of Image Analysis and Processing - Workshops, 10-13 September 2007, Modena, Italy. DOI: 10.1109/ICIAPW.2007.28

A Hybrid Ontology and Visual-based Retrieval Model for Cultural Heritage Multimedia Collections

S. Vrochidis, C. Doulaverakis, A. Gounaris, E. Nidelkou, L. Makris and I. Kompatsiaris, "A Hybrid Ontology and Visual-based Retrieval Model for Cultural Heritage Multimedia Collections", in Proceedings of 2nd International Conference on Metadata and Semantics Research, Metadata and Semantics, 11-12 October, Corfu, Greece, 2007, Springer US, pp. 1-10. https://doi.org/10.1007/978-0-387-77745-0_1

K-Space at TRECVid 2007

P. Wilkins, T. Adamek, D. Byrne, G. J. F. Jones, H. Lee, G. Keenan, K. McGuinness, N. E. O’Connor, A. F. Smeaton, A. Amin, Z. Obrenovic, R. Benmokhtar, E. Galmar, B. Huet, S. Essid, R. Landais, F. Vallet, G. Papadopoulos, S. Vrochidis, V. Mezaris, I. Kompatsiaris, E. Spyrou, Y. Avrithis, R. Morzinger, P. Schallauer, W. Bailer, T. Piatrik, K. Chandramouli, E. Izquierdo, M. Haller, L. Goldmann, A. Samour, A. Cobet, T. Sikora, P. Praks, "K-Space at TRECVid 2007", Presented at TRECVID 2007 Workshop, November 2007, Gaithersburg, MD, USA.

A T-learning Courses Development and Presentation Framework

F. Bellotti, S. Vrochidis, E. Parissi, P. Lhoas, D. Mathevon, M. Pellegrino, G. Bo and I. Kompatsiaris, "A T-learning Courses Development and Presentation Framework", 3rd International Conference on Interactive Mobile and Computer Aided Learning, IMCL2008, April 16-18, 2008, Amman, Jordan.

Integration of Semantic, Metadata and Image search engines with a text search engine for patent retrieval

J. Codina, E. Pianta, S. Vrochidis and 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.

MKLab Interactive Video Retrieval System

S. Vrochidis, P. King, L. Makris, A. Moumtzidou, V. Mezaris and I. Kompatsiaris, "MKLab Interactive Video Retrieval System", in the Proceedings of Conference On Image And Video Retrieval (CIVR'08), Niagra Falls, Canada, 7-9 July 2008, Pages: 563 - 563.

COST292 experimental framework for TRECVID 2008

Q. Zhang, G. Tolias, B. Mansencal, A. Saracoglu, N. Aginako, A. Alatan, L. A. Alexandre, Y. Avrithis, J. Benois-Pineau, K. Chandramouli, M. Corvaglia, U. Damnjanovic, A. Dimou, E. Esen, N. Fatemi, I. Garcia, F. Guerrin, A. Hanjalic, R. Jarina, P. Kapsalas, P. King, I. Kompatsiaris, L. Makris, V. Mezaris, P. Migliorati, A. Moumtzidou, Ph. Mylonas, U. Naci, S. Nikolopoulos, M. Paralic, T. Piatrik, F. Poulin, A. M. G. Pinheiro, L. Raileanu, E. Spyrou, S. Vrochidis, "COST292 experimental framework for TRECVID 2008", Proc. TRECVID 2008 Workshop, November 2008, Gaithersburg, MD, USA. https://doi.org/10.1145/1463563.1463569

A Learning Oriented Technological Framework for iDTV

F. Bellotti, S. Vrochidis, I. Tsampoulatidis, G. Bo and L. Napoletano, "A Learning Oriented Technological Framework for iDTV", 4th International Conference on Automated Solutions for Cross Media Content and Multi-channel Distribution (AXMEDIS 2008), Florence, Italy, 17-19 November 2008. DOI: 10.1109/AXMEDIS.2008.30

MKLab Interactive Video Retrieval System

S. Vrochidis, P. King, L. Makris, A. Moumtzidou, S. Nikolopoulos, A. Dimou, V. Mezaris, I. Kompatsiaris, "MKLab Interactive Video Retrieval System", ACM International Conference on Image and Video Retrieval (CIVR09) - VideOlympics Showcase event, Santorini, Greece, July 2009. https://doi.org/10.1145/1646396.1646459

ITI-CERTH participation to TRECVID 2009 HLFE and Search

A. Moumtzidou, A. Dimou, P. King, S. Vrochidis, A. Angeletou, V. Mezaris, S. Nikolopoulos, I. Kompatsiaris, L. Makris, "ITI-CERTH participation to TRECVID 2009 HLFE and Search", Proc. TRECVID 2009 Workshop, November 2009, Gaithersburg, MD, USA.

Exploiting Implicit User Feedback in Interactive Video Retrieval

S. Vrochidis, I. Kompatsiaris and I. Patras,"Exploiting Implicit User Feedback in Interactive Video Retrieval", in Proceedings of the 11th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2010), Desenzano del Garda, Italy, April 2010. https://ieeexplore.ieee.org/document/5617661

VERGE: A video interactive retrieval engine

S. Vrochidis, A. Moumtzidou, P. King, A. Dimou, V. Mezaris and I. Kompatsiaris, "VERGE: A video interactive retrieval engine", in Proceedings of the 8th International Workshop on Content-Based Multimedia Indexing (CBMI 2010), pp. 142-147, Grenoble, France, 23-25 June 2010. DOI: 10.1109/CBMI.2010.5529884

Content-Based Retrieval of Complex Binary Images

P. Sidiropoulos, S. Vrochidis and I. Kompatsiaris,"Content-Based Retrieval of Complex Binary Images", in Proceedings of the 8th International Workshop on Content-Based Multimedia Indexing (CBMI 2010), pp. 182-187, Grenoble, France, 23-25 June 2010.

Incremental estimation of visual vocabulary size for image retrieval

I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris,"Incremental estimation of visual vocabulary size for image retrieval", in INNS Conference on Big Data, pp. 29-38. Springer International Publishing, 2016.

Optimizing Visual Search with Implicit User Feedback in Interactive Video Retrieval

S. Vrochidis, I. Kompatsiaris and I. Patras, "Optimizing Visual Search with Implicit User Feedback in Interactive Video Retrieval", in Proceedings of the ACM International Conference on Image and Video Retrieval (CIVR 2010), pp 274-281, Xi'an, China, 5-7 July 2010. https://doi.org/10.1145/1816041.1816082

Service-Based Infrastructure for User-Oriented Environmental Information Delivery

L. Wanner, H. Bosch, N. Bouayad-Agha, U. Brugel, G. Casamayor, T. Ertl, A. Karppinen, I. Kompatsiaris, T. Koskentalo, S. Mille, J. Mossgraber, A. Moumtzidou, M. Myllynen, E. Pianta, M. Rospocher, H. Saggion, L. Serafini, V. Tarvainen, S. Tonelli, T. Uslander, S. Vrochidis, "Service-Based Infrastructure for User-Oriented Environmental Information Delivery", ENVIP 2010 Workshop, Bonn/Cologne, October 6-8, 2010.

ITI-CERTH participation in TRECVID 2016

F. Markatopoulou, A. Moumtzidou, D. Galanopoulos, T. Mironidis, V. Kaltsa, A. Ioannidou, S. Symeonidis, K. Avgerinakis, S. Andreadis, I. Gialampoukidis, S. Vrochidis, A. Briassouli, V. Mezaris, I. Kompatsiaris, I. Patras, "ITI-CERTH participation in TRECVID 2016", in Proc. TRECVID 2016 Workshop, Gaithersburg, MD, USA, Nov. 2016.

VERGE IN VBS 2017

A. Moumtzidou, T. Mironidis, F. Markatopoulou, S. Andreadis, I. Gialampoukidis, D. Galanopoulos, A. Ioannidou, S. Vrochidis, V. Mezaris, I. Kompatsiaris, I. Patras. "VERGE IN VBS 2017", in Proc. Video Browser Showdown (VBS'17) at the 23rd Int. Conf. on MultiMedia Modeling (MMM'17), Reykjavik, Iceland, 4 January 2017.

ITI-CERTH participation to TRECVID 2010

A. Moumtzidou, A. Dimou, N. Gkalelis, S. Vrochidis, V. Mezaris, I. Kompatsiaris,"ITI-CERTH participation to TRECVID 2010", in Proceedings of TRECVID 2010 Workshop, November 2010, Gaithersburg, MD, USA.

An eye-tracking-based approach to facilitate interactive video search

S. Vrochidis, I. Patras, I. Kompatsiaris, "An eye-tracking-based approach to facilitate interactive video search", in ICMR '11 Proceedings of the 1st ACM International Conference on Multimedia Retrieval, 2011. https://doi.org/10.1145/1991996.1992039

ITI-CERTH participation to TRECVID 2011

A. Moumtzidou, P. Sidiropoulos, S. Vrochidis, N. Gkalelis, S. Nikolopoulos, V. Mezaris, I. Kompatsiaris, I. Patras, "ITI-CERTH participation to TRECVID 2011", in Proceedings of TRECVID 2011 Workshop, December 2011, Gaithersburg, MD, USA.

Exploiting gaze movements for automatic video annotation

S. Vrochidis, I. Patras and I. Kompatsiaris, "Exploiting gaze movements for automatic video annotation", in Proceedings of the 13th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2012), Dublin, Ireland, May 23-25, 2012. DOI: 10.1109/WIAMIS.2012.6226766

PatMedia: Augmenting Patent Search with Content-based Image Retrieval

S. Vrochidis, A. Moumtzidou, G. Ypma and I. Kompatsiaris, "PatMedia: Augmenting Patent Search with Content-based Image Retrieval", in Proceedings of the 5th IRF Conference, Austria, Vienna, July 2-3, 2012. https://doi.org/10.1007/978-3-642-31274-8_9

ITI-CERTH participation in TRECVID 2017

F. Markatopoulou, A. Moumtzidou, D. Galanopoulos, K. Avgerinakis, S. Andreadis, I. Gialampoukidis, S. Tachos, S. Vrochidis, V. Mezaris, I. Kompatsiaris, I. Patras, "ITI-CERTH participation in TRECVID 2017", in Proc. TRECVID 2017 Workshop, Gaithersburg, MD, USA, Nov. 2017.

A Topic Detection and Visualisation System on Social Media Posts

S. Andreadis, I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris, "A Topic Detection and Visualisation System on Social Media Posts", in International Conference on Internet Science, pp. 421-427. Springer, Cham, 2017.