Publications – Page 3 – Multimodal Data Fusion and Analytics Group

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. Jónsson, J. Loko, A. Leibetseder, F. Mejzlík, L. Peška, L. Rossetto, K. Schall, K. Schoeffmann, H. Schuldt, F. Spiess, L. Tran, L. Vadicamo, P. Veselý, S. Vrochidis, 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, vol. 11, pp. 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, I. Kompatsiaris, "VERGE in VBS 2022.", in Proceedings of the 28th International Conference on Multimedia Modelling (MMM2022), Phu Quoc, Vietnam, 5-8 April 2022.

WaterMM:Water Quality in Social Multimedia Task at MediaEval 2021

S. Andreadis, I. Gialampoukidis, A. Bozas, A. Moumtzidou, R. Fiorin, F. Lombardo, A. Karakostas, D. Norbiato, S. Vrochidis, M. Ferri, I. Kompatsiaris, "WaterMM: Water Quality in Social Multimedia Task at MediaEval 2021.",in Proceedings of the MediaEval 2021 Workshop (MediaEval'21), 12-15 December 2021.

Parallel DBSCAN-Martingale estimation of the number of concepts for automatic satellite image clustering

I. Gialampoukidis, S. Andreadis, N. Pantelidis, S. Hayat, L. Zhong, M. Bakratsas, D. Hoppe, S. Vrochidis, I. Kompatsiaris, "Parallel DBSCAN-Martingale estimation of the number of concepts for automatic satellite image clustering.", in Proceedings of the 28th International Conference on Multimedia Modelling (MMM2022), Phu Quoc, Vietnam, 6-10 June, 2022.

Multimodal data fusion of social media and satellite images for emergency response and decision-making

I. Gialampoukidis, S. Andreadis, S. Vrochidis, I. Kompatsiaris, "Multimodal data fusion of social media and satellite images for emergency response and decision-making.", in Proceedings of the 2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2021), 11 July 2021, pp. 228-231.

Implementation of an Interactive Crowd-Enhanced Content Management System for Tourism Development

I. Paliokas, E. E. Mitsopoulou, A. T. Patenidis, E. A. Stathopoulos, A. Kokkalas, S. Diplaris, E. Karyati, S. Tsafaras, E. Tasiopoulou, C. Riggas, G. Meditskos, S. Vrochidis, K. Votis, I. Kompatsiaris, D. Tzovaras, "Implementation of an Interactive Crowd-Enhanced Content Management System for Tourism Development.", in Proceedings of the conference on humanities, arts and social sciences, KnE Social Sciences, vol. 5, no. 9, 2021, pp. 275–282.

Human activity recognition with IMU and vital signs feature fusion

V. R. Xefteris, A. Tsanousa, T. Mavropoulos, G. Meditskos, S. Vrochidis, I. Kompatsiaris, "Human activity recognition with IMU and vital signs feature fusion.", in Proceedings of the 28th International Conference on Multimedia Modelling (MMM2022), Phu Quoc, Vietnam, June 6–10, 2022, pp. 287–298. DOI: https://doi.org/10.1007/978-3-030-98358-1_23

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.

Usage of Visual Analytics to Support Immigration-Related, Personalised Language Training Scenarios

G. Antzoulatos, T. Mavropoulos, G. Tzionis, A. Karakostas, A. Costas, M. González Burgos, S. Vrochidis, I. Kompatsiaris, "Usage of Visual Analytics to Support Immigration-Related, Personalised Language Training Scenarios.", in Proceedings of the International Conference on Interactive Mobile Communication, Technologies and Learning (IMCL2021), 4-5 November 2021.

Severity level assessment from semantically fused video content analysis for physical threat detection in ground segments of space systems

G. Antzoulatos, G. Orfanidis, P. Giannakeris, G. Tzanetis, G. Stathopoulos, N. Kopalidis, I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris, "Severity level assessment from semantically fused video content analysis for physical threat detection in ground segments of space systems.", in Proceedings of the 2nd International Workshop on Cyber-Physical Security for Critical Infrastructures Protection (CPS4CIP 2021), 4-8 October 2021.

Host-based Intrusion Detection Using Signature-based and AI-driven Anomaly Detection Methods

P. Panagiotou, N. Mengidis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Host-based Intrusion Detection Using Signature-based and AI-driven Anomaly Detection Methods.",Information & Security: An International Journal, vol. 50, no. 1, pp. 37-48, 2021.

A social media analytics platform visualising the spread of COVID-19 in Italy via exploitation of automatically geotagged tweets

S. Andreadis, G. Antzoulatos, T. Mavropoulos, P. Giannakeris, G. Tzionis, N. Pantelidis, K. Ioannidis, A. Karakostas, I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris, "A social media analytics platform visualising the spread of COVID-19 in Italy via exploitation of automatically geotagged tweets.", Online Social Networks and Media, vol. 23, 2021.

Study of 3D Digitisation Modalities for Crime Scene Investigation

G. Galanakis, X. Zabulis, T. Evdaimon, S.-E. Fikenscher, S. Allertseder, T. Tsikrika, S. Vrochidis, "A Study of 3D Digitisation Modalities for Crime Scene Investigation.", Forensic Sci., vol. 1, no. 2, pp. 56-85, 2021.

xR4DRAMA: Enhancing situation awareness using immersive (XR) technologies

S. Symeonidis, S. Diplaris, N. Heise, T. Pistola, A. Tsanousa, G. Tzanetis, E. Batziou, C. Stentoumis, I. Kalisperakis, S. Freitag, Y. Shekhawat, R. Paradiso, M. Pacelli, J. Codinak, S. Millek, M. Marimonk, M. Ferri, D. Norbiato, M. Monego, A. Karakostas, S. Vrochidis, "xR4DRAMA: Enhancing situation awareness using immersive (XR) technologies.", in Proceedings of the 2021 IEEE International Conference on Intelligent Reality (ICIR), Piscataway, NJ, USA, 2021, pp. 1-8. https://doi.org/10.1109/ICIR51845.2021.00010

On the Use of Semantic Web Technologies for Forest Fire Emergencies in Resilient Societies

P. Masa , G. Meditskos, A. Karakostas , S. Vrochidis, I. Kompatsiaris, "On the Use of Semantic Web Technologies for Forest Fire Emergencies in Resilient Societies.",in Proceedings of the 2021 International Conference on Security and Management (SAM'21), Las Vegas, USA, July 26-29, 2021.

OntoAqua: Ontology-based Modelling of Context in Water Safety and Security

Α. M. Koufakis, S. Tzanakis, A. Moumtzidou, G. Meditskos, A. Karakostas, S. Vrochidis, I. Kompatsiaris, "OntoAqua: Ontology-based Modelling of Context in Water Safety and Security.", in Proceedings of the 13th International Conference on Knowledge Engineering and Ontology Development-KEOD 2021, Valletta, Malta, 25-27 October, 2021.

An IoT-based Reliable Industrial Data Services for Manufacturing Quality Control

R. Poler, A. Karakostas, S. Vrochidis, A. Marguglio, S. Settier, P. Figueiras, A. Gómez-González, B. Mandler, S. Wellsandt, R. Trevino, S. Bassoumi, C. Agostinho, "An IoT-based Reliable Industrial Data Services for Manufacturing Quality Control.", in Proceedings of the 2021 IEEE International Conference on Engineering, Technology and Innovation, 21-23 June 2021.

How to Collect Factories’ Requirements for Smart Manufacturing in Context of Quality Control: the i4Q Approach

A. Karakostas, G. Apostolou, R. Poler, B. Andrés, R. Trevino, A. M. Nowak-Meitinger, R. Jochem, S. Vrochidis, "How to Collect Factories’ Requirements for Smart Manufacturing in Context of Quality Control: the i4Q Approach.", in Proceedings of the 29th IEEE International Requirements Engineering Conference, Notre Dame, South Bend, USA, 20-24 September 2021.

Industrial Data Services for Quality Control in Smart Manufacturing – the i4Q Framework

A. Karakostas, F. Fraile, R. Poler, S. Vrochidis, "Industrial Data Services for Quality Control in Smart Manufacturing - the i4Q Framework.", in Proceedings of the 2021 IEEE International Workshop on Metrology for Industry 4.0 and IoT, Virtual, 07-09 June 2021.

Performance, challenges, and limitations in multimodal fall detection systems: a review

V. R. Xefteris, A. Tsanousa, G. Meditskos, S. Vrochidis, I. Kompatsiaris, "Performance, challenges, and limitations in multimodal fall detection systems: a review.", IEEE Sensors Journal, vol. 21, no. 17, pp. 18398 - 18409. DOI:10.1109/JSEN.2021.3090454

Smart integration of sensors, computer vision and knowledge representation for intelligent monitoring and verbal human-computer interaction

T. Mavropoulos, S. Symeonidis, A. Tsanousa, P. Giannakeris, M. Rousi, E. Kamateri, G. Meditskos, K. Ioannidis, S. Vrochidis, I. Kompatsiaris, "Smart integration of sensors, computer vision and knowledge representation for intelligent monitoring and verbal human-computer interaction.",Journal of Intelligent Information Systems, Springer, vol. 57, pp. 321-345, 2021.

Earthquakes: from Twitter detection to EO data processing

S. Andreadis, I. Gialampoukidis, A. Manconi, D. Cordeiro, V. Conde, M. Sagona, F. Brito, N. Pantelidis, T. Mavropoulos, N. Grosso, S. Vrochidis, I. Kompatsiaris, "Earthquakes: from Twitter detection to EO data processing.", in Proceedings of the 5th International Conference on Dynamics of Disasters (DOD 2021), Virtual, 15-18 July 2021.

ECHO Federated Cyber Range: Towards Next-Generation Scalable Cyber Ranges

N. Oikonomou, N. Mengidis, M. Karalexidis, A. Voulgaridis, M. Merialdo, I. Raisr, K. Hanson, P. Vallee, T. Tsikrika, S. Vrochidis, K. Votis, "ECHO Federated Cyber Range: Towards Next-Generation Scalable Cyber Ranges.", in Proceedings of the 2021 IEEE International Conference on Cyber Security and Resilience (IEEE CSR) – Workshops, Virtual Conference, Virtual, July 26 - 28, 2021.

Sensor Data Fusion and Autonomous Unmanned Vehicles for the Protection of Critical Infrastructures

K. Ioannidis, G. Orfanidis, M. Krestenitis, S. Vrochidis, I. Kompatsiaris, "Sensor Data Fusion and Autonomous Unmanned Vehicles for the Protection of Critical Infrastructures.", in Terahertz (THz), Mid Infrared (MIR) and Near Infrared (NIR) Technologies for Protection of Critical Infrastructures Against Explosives and CBRN, NATO Science for Peace and Security Series B: Physics and Biophysics, Springer Netherlands, 2021, pp. 3–17.

Spatio-temporal activity detection and recognition in untrimmed surveillance videos

K. Gkountakos, D. Touska, K. Ioannidis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Spatio-temporal activity detection and recognition in untrimmed surveillance videos.",in Proceedings of the 2021 International Conference on Multimedia Retrieval, August 2021.

Crowd Violence Detection from Video Footage

K. Gkountakos, K. Ioannidis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Crowd Violence Detection from Video Footage.", in Proceedings of the 2021 International Conference on Content-Based Multimedia Indexing (CBMI), IEEE, June 2021.

Combining RSSI and Accelerometer Features for Room-Level Localization

A. Tsanousa, V. R. Xefteris, G. Meditskos, S. Vrochidis, I. Kompatsiaris, "Combining RSSI and Accelerometer Features for Room-Level Localization.", Sensors, vol. 21, no. 8, 2021.

Creating immersive experiences based on intangible cultural heritage

T. Pistola, S. Diplaris, C. Stentoumis, E. A. Stathopoulos, G. Loupas, T. Mandilaras, G. Kalantzis, I. Kalisperakis, A. Tellios, D. Zavraka, P. Koulali, V. Kriezi, V. Vraka, F. Venieri, S. Bacalis, S. Vrochidis, I. Kompatsiaris, "Creating immersive experiences based on intangible cultural heritage.", in Proceedings of the 1st IEEE International Conference on Intelligent Reality (ICIR 2021), Virtual, 12-13 May, 2021.

ITI-CERTH participation in TRECVID 2019

K. Gkountakos, K. Ioannidis, S. Vrochidis, I. Kompatsiaris, "ITI-CERTH participation in TRECVID 2019.", in Proceedings of the TRECVID 2019 Workshop, Gaithersburg, MD, USA, November 2019.

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.", in Proceedings of the TRECVID 2020 Workshop, Gaithersburg, MD, USA, December 2020.

Dark Web Ιnvestigation

B. Akhgar, M. Gercke, S. Vrochidis, H. Gibson (2021). Dark Web investigation. 288 Pages, Springer.

Harmonizing Data Collection in an Ontology for a Risk Management Platform

D. C. Hilbring, J. Mossgraber, P. Hertweck, T. Hellmund, H. van der Schaaf, A. Karakostas, E. Kontopoulos, I. Gialampoukidis, S. Andreadis, S. Vrochidis, I. Kompatsiaris, "Harmonizing Data Collection in an Ontology for a Risk Management Platform", in Proceedings of the Enviroinfo 2018, Shaker-Verlag, 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)

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", in Annual Proceedings of Vidzeme University College, ICTE in Regional Development, Valmiera, Latvia, 2007, pp. 87–95.

T-Learning Technologies

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

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, S. Mukerji and P. Tripathi, Eds., IGI Global, 31 January, 2010, pp. 118–135.

Enhancing Patent Search with Content-based Image Retrieval

S. Vrochidis, A. Moumtzidou, I. Kompatsiaris, "Enhancing Patent Search with Content-based Image Retrieval", in Professional Search in the Modern World, Paltoglou, G., Loizides, F., Hansen, P., Eds., Lecture Notes in Computer Science vol. 8830, Springer, Cham, 31 January, 2014, pp 250-273.

OSINT and the Dark Web

G. Kalpakis, T. Tsikrika, N. Cunningham, C. Iliou, S. Vrochidis, J. Middleton, I. Kompatsiaris, "OSINT and the Dark Web", in Open Source Intelligence Investigation: From Strategy to Implementation, B. Akhgar, P. S. Bayerl, F. Sampson, Eds., Cham, Switzerland: Springer, 3 January, 2017, pp. 111–132.

Towards improved air quality monitoring using publicly available sky images

E. Spyromitros-Xioufis, A. Moumtzidou, S. Papadopoulos, S. Vrochidis, Y. Kompatsiaris, A. K. Georgoulias, G. Alexandri, K. Kourtidis, "Towards improved air quality monitoring using publicly available sky images", in Multimedia Technologies for Environmental & Biodiversity Informatics, Joly, A., Vrochidis, S., Karatzas, K., Karppinen, A., Bonnet, P. Eds., Multimedia Systems and Applications, Springer, Cham, 20 June, 2018, pp. 67–92.

Analysis of Suspended Terrorism-Related Content on Social Media

G. Kalpakis, T. Tsikrika, I. Gialampoukidis, S. Papadopoulos, S. Vrochidis, I. Kompatsiaris, "Analysis of Suspended Terrorism-Related Content on Social Media", in Community-Oriented Policing and Technological Innovations, G. Leventakis and M. R. Haberfeld, Eds., Cham, Switzerland: Springer, 27 April, 2018, pp. 107–118.

Visual Recognition of Abnormal Activities in Video Streams

K. Gkountakos, K. Ioannidis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Visual Recognition of Abnormal Activities in Video Streams.", in Technology Development for Security Practitioners, Cham: Springer International Publishing, pp. 151-165.

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", in Technology Advances and Support for Security Practitioners, B. Akhgar, D. Kavallieros, and E. Sdongos, Eds., Security Informatics and Law Enforcement, Springer, 2021.

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 Big Data Analytics for Large‐Scale Multimedia Search, Springer, 15 March, 2019, pp. 121-156.

IoT and Semantic Web Technologies

A. Chatzimichail, E. Stathopoulos, D. Ntioudis, A. Tsanousa, M. Rousi, A. Mavropoulos, G. Meditskos, S. Vrochidis, I. Kompatsiaris, "IoT and Semantic Web Technologies.", in Semantic IoT: Theory and Applications - Interoperability, Provenance and Beyond, Studies in Computational Intelligence, Springer, 2020, p. 3-33.

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

S. Vrochidis, C. Doulaverakis, A. Gounaris, E. Nidelkou, L. Makris, 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, I. Kompatsiaris, "A Technological Framework for the Authoring and Presentation of T-learning Courses", International Journal of Emerging Technologies in Learning (iJET), vol. 3, no. 4, 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, 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, vol. 32, no. 2, pp. 94-106, 27 June, 2009.

Utilizing Implicit User Feedback to Improve Interactive Video Retrieval

S. Vrochidis, I. Kompatsiaris, I. Patras, "Utilizing Implicit User Feedback to Improve Interactive Video Retrieval", Advances in Multimedia, vol. 2011, no. 1, 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, vol. 44, no. 4, pp. 739-750, 18 August, 2012.

Concept-based Patent Image Retrieval

S. Vrochidis, A. Moumtzidou, I. Kompatsiaris, "Concept-based Patent Image Retrieval", World Patent Information Journal, vol. 34, no. 4, pp. 292-303, 18 August, 2012.

Ontology-centered environmental information delivery for personalized decision support

L. Wanner, M. Rospocher, S. Vrochidis, L. Johansson, N. Bouayad-Aghae, G. Casamayor, A. Karppinen, I. Kompatsiaris, S. Millee, A. Moumtzidou, L. Serafini, "Ontology-centered environmental information delivery for personalized decision support", Expert Systems With Applications, vol. 42, no. 12, pp. 5032–5046, 15 July, 2015.

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, vol. 75, pp. 1589–1613, 7 May, 2015.

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

S. Vrochidis, I. Patras, I. Kompatsiaris, "Gaze Movement-driven Random Forests for Query Clustering in Automatic Video Annotation", Multimedia Tools and Applications, vol. 76, pp. 2861–2889, 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, L. Rossetto, "Interactive video search tools: a detailed analysis of the video browser showdown 2015", Multimedia Tools Appl., vol. 76, pp. 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, vol. 76, pp. 22383–22403, 15 May, 2017.

Hybrid Focused Crawling on the Surface and the Dark Web

C. Iliou, G. Kalpakis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Hybrid Focused Crawling on the Surface and the Dark Web", EURASIP Journal on Information Security, vol. 2017, no. 11, 4 July, 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 Security Sciences: Secure Societies, pp. 33-82, 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, vol. 5, 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 (TOMM), vol. 15, no. 1, pp. 1 - 18, 1 February, 2019.

Converness: Ontology-driven Conversational Awareness and Context Understanding in Multimodal Dialogue Systems

G. Meditskos, E. Kontopoulos, S. Vrochidis, I. Kompatsiaris, "Converness: Ontology-driven Conversational Awareness and Context Understanding in Multimodal Dialogue Systems", Expert Systems, Special Issue on e-Health and Staying Smarter, vol. 37, no. 1, 12 February, 2019.

Probabilistic density-based estimation of the number of clusters using the DBSCAN-martingale process

I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris, I. Antoniou, "Probabilistic density-based estimation of the number of clusters using the DBSCAN-martingale process", Pattern Recognition Letters, vol. 123, pp. 23-30, 4 March, 2019.

Oil Spill Identification from Satellite Images Using Deep Neural Networks

M. Krestenitis, G. Orfanidis, K. Ioannidis, K. Avgerinakis, S. Vrochidis, I. Kompatsiaris, "Oil Spill Identification from Satellite Images Using Deep Neural Networks", Remote Sensing, vol. 11, no. 15, 26 July, 2019.

The Backbone of Decision Support Systems: The Sensor to Decision Chain

P. Hertweck, J. Mossgraber, E. Kontopoulos, P. Mitzias, T. Hellmund, A. Karakostas, D. Hilbring, H. van der Schaaf, S. Vrochidis, J. W. Blume, I. Kompatsiaris, "The Backbone of Decision Support Systems: The Sensor to Decision Chain", International Journal of Information Systems for Crisis Response and Management (IJISCRAM), vol. 10, no. 4, pp. 65-87, 29 August, 2019.

Blockchain and AI for the Next Generation Energy Grids: Cybersecurity Challenges and Opportunities

N. Mengidis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Blockchain and AI for the Next Generation Energy Grids: Cybersecurity Challenges and Opportunities", Information & Security: An International Journal, vol. 43, no. 1, pp. 21-33, 2019.

Internet of Things Infrastructure for Security and Safety in Public Places

A. Chatzimichail, C. Chatzigeorgiou, A. Tsanousa, D. Ntioudis, G. Meditskos, F. Andritsopoulos, C. Karaberi, P. Kasnesis, D. Kogias, G. Gorgogetas, S. Vrochidis, C. Patrikakis, I. Kompatsiaris, "Internet of Things Infrastructure for Security and Safety in Public Places", Information, vol. 10, no. 11, 28 October, 2019.

A context-aware conversational agent in the rehabilitation domain

T. Mavropoulos, G. Meditskos, E. Kamateri, M. Rousi, S. Symeonidis, D. Tzimikas, L. Papageorgiou, C. Eleftheriadis, G. Adamopoulos, S. Vrochidis, I. Kompatsiaris, "A context-aware conversational agent in the rehabilitation domain", Future Internet, vol. 11, no. 11, 1 November, 2019.

EUCISE-OWL: An Ontology-based Representation of the Common Information Sharing Environment (CISE) for the Maritime Domain

M. Riga, E. Kontopoulos, K. Ioannidis, S. Kintzios, S. Vrochidis, I. Kompatsiaris, "EUCISE-OWL: An Ontology-based Representation of the Common Information Sharing Environment (CISE) for the Maritime Domain.", Semantic Web, vol. 12, no. 2, pp. 1-13, 2020.

A novel feature selection method based on comparison of correlations for human activity recognition problems

A. Tsanousa, G. Meditskos, S. Vrochidis, L. Angelis, "A novel feature selection method based on comparison of correlations for human activity recognition problems.", Journal of Ambient Intelligence and Humanized Computing, vol. 11, pp. 5961–5975, 6 March 2020.

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, Gaithersburg, MD, USA, November 2012.

First-Person Activity Recognition from Micro-Action Representations using Convolutional Neural Networks and Object Flow Histograms

P. Giannakeris, P. Petrantonakis, K. Avgerinakis, S. Vrochidis, I. Kompatsiaris, "First-Person Activity Recognition from Micro-Action Representations using Convolutional Neural Networks and Object Flow Histograms.", Multimedia Tools and Applications An International Journal, 29 September, 2020.

Making Urban Water Smart: The SMART-WATER solution

G. Antzoulatos, C. Mourtzios, P. Stournara, I. O. Kouloglou, N. Papadimitriou, D. Spyrou, A. Mentes, E. Nikolaidis, A. Karakostas, D. Kourtesis, S. Vrochidis, I. Kompatsiaris, "Making urban water smart: the SMART-WATER solution.", Water Science & Technology, vol. 82, no. 12, December 2020.

Semantically Enriching an Open Source SOS Implementation for Accessing Heterogeneous Environmental Data Sources

D. Hilbring, A. Moumtzidou, J. Mossgraber, S. Vrochidis, "Semantically Enriching an Open Source SOS Implementation for Accessing Heterogeneous Environmental Data Sources.", in Proceedings of the Global Conference for Open Source Geospatial Software, Nottingham, UK, September 17-21, 2013.

Concept extraction from patent images based on recursive hybrid classification

A. Moumtzidou, S. Vrochidis, I. Kompatsiaris, "Concept extraction from patent images based on recursive hybrid classification.", in Proceedings of the 6th Information Retrieval Facility Conference 2013 (IRFC 2013), Multidisciplinary Information Retrieval, Springer Berlin Heidelberg, Vol. 8201, Limassol, Cyprus, 7-9 October, 2013, pp. 83-86. https://doi.org/10.1007/978-3-642-41057-4_9

ITI-CERTH participation to TRECVID 2013

F. Markatopoulou, A. Moumtzidou, C. Tzelepis, K. Avgerinakis, N. Gkalelis, S. Vrochidis, V. Mezaris, I. Kompatsiaris, "ITI-CERTH participation to TRECVID 2013", in Proceedings of the 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 Proceedings of the Video Browser Showdown (VBS'14) at the 20th Int. Conf. on MultiMedia Modeling (MMM'14), Springer LNCS vol. 8326, Dublin, Ireland, January 2014, pp. 411-414.

The extraction and fusion of meteorological and air quality information for orchestrated services

L. Johansson, V. Epitropou, K. Karatzas, L. Wanner, A. Karppinen, J. Kukkonen, S. Vrochidis, I. Kompatsiaris, "The extraction and fusion of meteorological and air quality information for orchestrated services.", in Proceedings of the 1st International Workshop on Environmental Multimedia Retrieval (EMR 2014), Glasgow, UK, April 1, 2014.

Key-phrase Extraction using Textual and Visual Features

Y. HaCohen-Kerner, S. Vrochidis, D. Liparas, A. Moumtzidou, I. Kompatsiaris, "Key-phrase Extraction using Textual and Visual Features", in Proceedings of the 3rd Workshop on Vision and Language (VL), Dublin, Ireland, August 23-29, 2014. DOI: 10.3115/v1/W14-5421

Concept-oriented labelling of patent images based on Random Forests and proximity-driven generation of synthetic data

D. Liparas, A. Moumtzidou, S. Vrochidis, I. Kompatsiaris, "Concept-oriented labelling of patent images based on Random Forests and proximity-driven generation of synthetic data", in Proceedings of the COLING'14 Workshop on Vision and Language (VL'14), Dublin, August 23, 2014. DOI: 10.3115/v1/W14-5404

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 Proceedings of the TRECVID 2014 Work-shop, Orlando, FL, USA, November 2014.