Georgios Th. Papadopoulos

According to our database, Georgios Th. Papadopoulos authored at least 76 papers between 2006 and 2025.

Collaborative distances:

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2025

Self-supervised visual learning in the low-data regime: A comparative evaluation.

Sotirios Konstantakos, Jorgen Cani, Ioannis Mademlis, Despina Ioanna Chalkiadaki, Yuki M. Asano, Efstratios Gavves, Georgios Th. Papadopoulos

Neurocomputing, 2025

2024

Neural natural language processing for long texts: A survey on classification and summarization.

Dimitrios Tsirmpas, Ioannis Gkionis, Georgios Th. Papadopoulos, Ioannis Mademlis

Eng. Appl. Artif. Intell., 2024

Entity Extraction from High-Level Corruption Schemes via Large Language Models.

Panagiotis Koletsis, Panagiotis-Konstantinos Gemos, Christos Chronis, Iraklis Varlamis, Vasilis Efthymiou, Georgios Th. Papadopoulos

CoRR, 2024

Applied Federated Model Personalisation in the Industrial Domain: A Comparative Study.

Ilias Siniosoglou, Vasileios Argyriou, George F. Fragulis, Panagiotis E. Fouliras, Georgios Th. Papadopoulos, Anastasios Lytos, Panagiotis G. Sarigiannidis

CoRR, 2024

Leveraging Digital Twin Technologies for Public Space Protection and Vulnerability Assessment.

Artemis Stefanidou, Jorgen Cani, Thomas Papadopoulos, Panagiotis I. Radoglou-Grammatikis, Panagiotis G. Sarigiannidis, Iraklis Varlamis, Georgios Th. Papadopoulos

CoRR, 2024

Multi-robot maze exploration using an efficient cost-utility method.

Manousos Linardakis, Iraklis Varlamis, Georgios Th. Papadopoulos

CoRR, 2024

Advances in Diffusion Models for Image Data Augmentation: A Review of Methods, Models, Evaluation Metrics and Future Research Directions.

Panagiotis Alimisis, Ioannis Mademlis, Panagiotis I. Radoglou-Grammatikis, Panagiotis G. Sarigiannidis, Georgios Th. Papadopoulos

CoRR, 2024

CEASEFIRE: An AI-powered system for combatting illicit firearms trafficking.

Ioannis Mademlis, Jorgen Cani, Marina Mancuso, Caterina Paternoster, Emmanouil Adamakis, George Margetis, Sylvie Chambon, Alain Crouzil, Loubna Lechelek, Georgia Dede, Spyridon C. Evangelatos, George Lalas, Franck Mignet, Pantelis Linardatos, Konstantinos Kentrotis, Henryk Gierszal, Piotr Tyczka, Sophia Karagiorgou, George Pantelis, Georgios Stavropoulos, Konstantinos Votis, Georgios Th. Papadopoulos

CoRR, 2024

StatAvg: Mitigating Data Heterogeneity in Federated Learning for Intrusion Detection Systems.

Pavlos S. Bouzinis, Panagiotis I. Radoglou-Grammatikis, Ioannis Makris, Thomas Lagkas, Vasileios Argyriou, Georgios Th. Papadopoulos, Panayiotis Sarigiannidis, George K. Karagiannidis

CoRR, 2024

Self-supervised visual learning in the low-data regime: a comparative evaluation.

Sotirios Konstantakos, Despina Ioanna Chalkiadaki, Ioannis Mademlis, Yuki M. Asano, Efstratios Gavves, Georgios Th. Papadopoulos

CoRR, 2024

Exploring Machine Learning Algorithms for Infection Detection Using GC-IMS Data: A Preliminary Study.

Christos Sardianos, Chrysostomos Symvoulidis, Matthias Schlögl, Iraklis Varlamis, Georgios Th. Papadopoulos

CoRR, 2024

Illicit object detection in X-ray images using Vision Transformers.

Jorgen Cani, Ioannis Mademlis, Adamantia Anna Rebolledo Chrysochoou, Georgios Th. Papadopoulos

CoRR, 2024

Multimodal Explainable Artificial Intelligence: A Comprehensive Review of Methodological Advances and Future Research Directions.

Nikolaos Rodis, Christos Sardianos, Panagiotis I. Radoglou-Grammatikis, Panagiotis G. Sarigiannidis, Iraklis Varlamis, Georgios Th. Papadopoulos

IEEE Access, 2024

Distributed Maze Exploration Using Multiple Agents and Optimal Goal Assignment.

Manousos Linardakis, Iraklis Varlamis, Georgios Th. Papadopoulos

IEEE Access, 2024

2023

Current Challenges and Future Research Directions in Multimodal Explainable Artificial Intelligence.

Nikolaos Rodis, Christos Sardianos, Georgios Th. Papadopoulos

ERCIM News, 2023

Illicit item detection in X-ray images for security applications.

Georgios Batsis, Ioannis Mademlis, Georgios Th. Papadopoulos

Proceedings of the IEEE Ninth International Conference on Big Data Computing Service and Applications, 2023

Investigating Visual Analytics against Terrorist Financing in Dark Web Marketplaces.

Kyriaki Miniadou, Eirini Kyriakou, Spyridon Tzagkarakis, Asterios Leonidis, Georgios Th. Papadopoulos, Constantine Stephanidis

Proceedings of the IEEE International Conference on Big Data, 2023

Visual inspection for illicit items in X-ray images using Deep Learning.

Ioannis Mademlis, Georgios Batsis, Adamantia Anna Rebolledo Chrysochoou, Georgios Th. Papadopoulos

Proceedings of the IEEE International Conference on Big Data, 2023

Self-supervised visual learning for analyzing firearms trafficking activities on the Web.

Sotirios Konstantakos, Despina Ioanna Chalkiadaki, Ioannis Mademlis, Adamantia Anna Rebolledo Chrysochoou, Georgios Th. Papadopoulos

Proceedings of the IEEE International Conference on Big Data, 2023

2022

A Comprehensive Study on Deep Learning-Based Methods for Sign Language Recognition.

Nikolas Adaloglou, Theocharis Chatzis, Ilias Papastratis, Andreas Stergioulas, Georgios Th. Papadopoulos, Vassia Zacharopoulou, George J. Xydopoulos, Klimnis Atzakas, Dimitris Papazachariou, Petros Daras

IEEE Trans. Multim., 2022

User Profile-Driven Large-Scale Multi-agent Learning from Demonstration in Federated Human-Robot Collaborative Environments.

Georgios Th. Papadopoulos, Asterios Leonidis, Margherita Antona, Constantine Stephanidis

Proceedings of the Human-Computer Interaction. Technological Innovation, 2022

2021

Towards Open and Expandable Cognitive AI Architectures for Large-Scale Multi-Agent Human-Robot Collaborative Learning.

Georgios Th. Papadopoulos, Margherita Antona, Constantine Stephanidis

IEEE Access, 2021

2020

The Greek Sign Language (GSL) Dataset.

Ilias Papastratis, Nikolas Adaloglou, Andreas Stergioulas, Theocharis Chatzis, Georgios Th. Papadopoulos, Vassia Zacharopoulou, George J. Xydopoulos, Klimnis Atzakas, Dimitris Papazachariou, Kosmas Dimitropoulos, Petros Daras

Dataset, July, 2020

The Greek Sign Language (GSL) Dataset.

Ilias Papastratis, Nikolas Adaloglou, Andreas Stergioulas, Theocharis Chatzis, Georgios Th. Papadopoulos, Vassia Zacharopoulou, George J. Xydopoulos, Klimnis Atzakas, Dimitris Papazachariou, Kosmas Dimitropoulos, Petros Daras

Dataset, July, 2020

Deep sensorimotor learning for RGB-D object recognition.

Spyridon Thermos, Georgios Th. Papadopoulos, Petros Daras, Gerasimos Potamianos

Comput. Vis. Image Underst., 2020

A Comprehensive Study on Sign Language Recognition Methods.

Nikolas Adaloglou, Theocharis Chatzis, Ilias Papastratis, Andreas Stergioulas, Georgios Th. Papadopoulos, Vassia Zacharopoulou, George J. Xydopoulos, Klimnis Atzakas, Dimitris Papazachariou, Petros Daras

CoRR, 2020

Neural Network Compression Using Higher-Order Statistics and Auxiliary Reconstruction Losses.

Christos Chatzikonstantinou, Georgios Th. Papadopoulos, Kosmas Dimitropoulos, Petros Daras

Proceedings of the 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2020

2019

A Hybrid Human-Robot Collaborative Environment for Recycling Electrical and Electronic Equipment.

Apostolos Axenopoulos, Georgios Th. Papadopoulos, Dimitrios Giakoumis, Ioannis Kostavelis, Alexis Papadimitriou Papadimitriou, Sara Sillaurren, Leire Bastida, Ozgur S. Oguz, Dirk Wollherr, Eugenio Garnica, Vasiliki Vouloutsi, Paul F. M. J. Verschure, Dimitrios Tzovaras, Petros Daras

Proceedings of the 2019 IEEE SmartWorld, 2019

A Reliability Object Layer for Deep Hashing-Based Visual Indexing.

Konstantinos Gkountakos, Theodoros Semertzidis, Georgios Th. Papadopoulos, Petros Daras

Proceedings of the MultiMedia Modeling - 25th International Conference, 2019

Incorporating Textual Similarity in Video Captioning Schemes.

Konstantinos Gkountakos, Anastasios Dimou, Georgios Th. Papadopoulos, Petros Daras

Proceedings of the IEEE International Conference on Engineering, Technology and Innovation, 2019

Deep Spatio-Temporal Modeling for Object-Level Gaze-Based Relevance Assessment.

Konstantinos Stavridis, Athanasios Psaltis, Anastasios Dimou, Georgios Th. Papadopoulos, Petros Daras

Proceedings of the 27th European Signal Processing Conference, 2019

Cross-domain Knowledge Transfer Schemes for 3D Human Action Recognition.

Athanasios Psaltis, Georgios Th. Papadopoulos, Petros Daras

Proceedings of the 27th European Signal Processing Conference, 2019

2018

Human Action Recognition Using 3D Reconstruction Data.

Georgios Th. Papadopoulos, Petros Daras

IEEE Trans. Circuits Syst. Video Technol., 2018

Attention-Enhanced Sensorimotor Object Recognition.

Spyridon Thermos, Georgios Th. Papadopoulos, Petros Daras, Gerasimos Potamianos

Proceedings of the 2018 IEEE International Conference on Image Processing, 2018

Deep 3D Flow Features for Human Action Recognition.

Athanasios Psaltis, Georgios Th. Papadopoulos, Petros Daras

Proceedings of the 2018 International Conference on Content-Based Multimedia Indexing, 2018

2017

Global Flow and Temporal-Shape Descriptors for Human Action Recognition from 3D Reconstruction Data.

Georgios Th. Papadopoulos, Petros Daras

Proceedings of the Machine Learning and Data Mining in Pattern Recognition, 2017

Incorporation of semantic segmentation information in deep hashing techniques for image retrieval.

Konstantinos Gkountakos, Theodoros Semertzidis, Georgios Th. Papadopoulos, Petros Daras

Proceedings of the International Conference on Engineering, Technology and Innovation, 2017

Deep Affordance-Grounded Sensorimotor Object Recognition.

Spyridon Thermos, Georgios Th. Papadopoulos, Petros Daras, Gerasimos Potamianos

Proceedings of the 2017 IEEE Conference on Computer Vision and Pattern Recognition, 2017

Large-Scale 3D Shape Retrieval from ShapeNet Core55.

Manolis Savva, Fisher Yu, Hao Su, Asako Kanezaki, Takahiko Furuya, Ryutarou Ohbuchi, Zhichao Zhou, Rui Yu, Song Bai, Xiang Bai, Masaki Aono, Atsushi Tatsuma, Spyridon Thermos, Apostolos Axenopoulos, Georgios Th. Papadopoulos, Petros Daras, Xiao Deng, Zhouhui Lian, Bo Li, Henry Johan, Yijuan Lu, Sanjeev Mk

Proceedings of the 10th Eurographics Workshop on 3D Object Retrieval, 2017

2016

Similarity Search of Flexible 3D Molecules Combining Local and Global Shape Descriptors.

Apostolos Axenopoulos, Dimitrios Rafailidis, Georgios Th. Papadopoulos, Elias N. Houstis, Petros Daras

IEEE ACM Trans. Comput. Biol. Bioinform., 2016

Deep cross-layer activation features for visual recognition.

Georgios Th. Papadopoulos, Elpida Machairidou, Petros Daras

Proceedings of the 2016 IEEE International Conference on Image Processing, 2016

2014

Gaze-Based Relevance Feedback for Realizing Region-Based Image Retrieval.

Georgios Th. Papadopoulos, Konstantinos C. Apostolakis, Petros Daras

IEEE Trans. Multim., 2014

Real-Time Skeleton-Tracking-Based Human Action Recognition Using Kinect Data.

Georgios Th. Papadopoulos, Apostolos Axenopoulos, Petros Daras

Proceedings of the MultiMedia Modeling - 20th Anniversary International Conference, 2014

Local descriptions for human action recognition from 3D reconstruction data.

Georgios Th. Papadopoulos, Petros Daras

Proceedings of the 2014 IEEE International Conference on Image Processing, 2014

2013

SP-Dock: Protein-Protein Docking Using Shape and Physicochemical Complementarity.

Apostolos Axenopoulos, Petros Daras, Georgios Th. Papadopoulos, Elias N. Houstis

IEEE ACM Trans. Comput. Biol. Bioinform., 2013

2012

Image Interpretation by Combining Ontologies and Bayesian Networks.

Spiros Nikolopoulos, Georgios Th. Papadopoulos, Ioannis Kompatsiaris, Ioannis Patras

Proceedings of the Artificial Intelligence: Theories and Applications, 2012

2011

Evidence-Driven Image Interpretation by Combining Implicit and Explicit Knowledge in a Bayesian Network.

Spiros Nikolopoulos, Georgios Th. Papadopoulos, Ioannis Kompatsiaris, Ioannis Patras

IEEE Trans. Syst. Man Cybern. Part B, 2011

A Shape Descriptor for Fast Complementarity Matching in Molecular Docking.

Apostolos Axenopoulos, Petros Daras, Georgios Th. Papadopoulos, Elias N. Houstis

IEEE ACM Trans. Comput. Biol. Bioinform., 2011

Joint modality fusion and temporal context exploitation for semantic video analysis.

Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

EURASIP J. Adv. Signal Process., 2011

A comparative study of object-level spatial context techniques for semantic image analysis.

Georgios Th. Papadopoulos, Carsten Saathoff, Hugo Jair Escalante, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

Comput. Vis. Image Underst., 2011

3D protein-protein docking using shape complementarity and fast alignment.

Apostolos Axenopoulos, Petros Daras, Georgios Th. Papadopoulos, Elias N. Houstis

Proceedings of the 18th IEEE International Conference on Image Processing, 2011

Knowledge-Driven Segmentation and Classification.

Thanos Athanasiadis, Phivos Mylonas, Georgios Th. Papadopoulos, Vasileios Mezaris, Yannis Avrithis, Ioannis Kompatsiaris, Michael G. Strintzis

Proceedings of the Multimedia Semantics: Metadata, Analysis and Interaction, 2011

2010

A System for the Semantic Multimodal Analysis of News Audio-Visual Content.

Vasileios Mezaris, Spyros Gidaros, Georgios Th. Papadopoulos, Walter Kasper, Jörg Steffen, Roeland Ordelman, Marijn Huijbregts, Franciska de Jong, Ioannis Kompatsiaris, Michael G. Strintzis

EURASIP J. Adv. Signal Process., 2010

A Statistical Learning Approach to Spatial Context Exploitation for Semantic Image Analysis.

Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

Proceedings of the 20th International Conference on Pattern Recognition, 2010

Probabilistic combination of spatial context with visual and co-occurrence information for semantic image analysis.

Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

Proceedings of the International Conference on Image Processing, 2010

2009

Statistical Motion Information Extraction and Representation for Semantic Video Analysis.

Georgios Th. Papadopoulos, Alexia Briassouli, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

IEEE Trans. Circuits Syst. Video Technol., 2009

Comparative evaluation of spatial context techniques for semantic image analysis.

Georgios Th. Papadopoulos, Carsten Saathoff, Marcin Grzegorzek, Vasileios Mezaris, Ioannis Kompatsiaris, Steffen Staab, Michael G. Strintzis

Proceedings of the 10th Workshop on Image Analysis for Multimedia Interactive Services, 2009

Integrating Image Segmentation and Classification for Fuzzy Knowledge-Based Multimedia Indexing.

Thanos Athanasiadis, Nikos Simou, Georgios Th. Papadopoulos, Rachid Benmokhtar, Krishna Chandramouli, Vassilis Tzouvaras, Vasileios Mezaris, Marios Phinikettos, Yannis Avrithis, Yiannis Kompatsiaris, Benoit Huet, Ebroul Izquierdo

Proceedings of the Advances in Multimedia Modeling, 2009

An Evidence-Driven Probabilistic Inference Framework for Semantic Image Understanding.

Spiros Nikolopoulos, Georgios Th. Papadopoulos, Ioannis Kompatsiaris, Ioannis Patras

Proceedings of the Machine Learning and Data Mining in Pattern Recognition, 2009

Combining multimodal and temporal contextual information for semantic video analysis.

Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

Proceedings of the International Conference on Image Processing, 2009

2008

A Comparative Study of Classification Techniques for Knowledge-Assisted Image Analysis.

Georgios Th. Papadopoulos, Krishna Chandramouli, Vasileios Mezaris, Ioannis Kompatsiaris, Ebroul Izquierdo, Michael G. Strintzis

Proceedings of the Ninth International Workshop on Image Analysis for Multimedia Interactive Services, 2008

K-Space at TRECVid 2008.

Peter Wilkins, Daragh Byrne, Gareth J. F. Jones, Hyowon Lee, Gordon Keenan, Kevin McGuinness, Noel E. O'Connor, Neil O'Hare, Alan F. Smeaton, Tomasz Adamek, Raphaël Troncy, Alia Amin, Rachid Benmokhtar, Emilie Dumont, Benoit Huet, Bernard Mérialdo, Giorgos Tolias, Evaggelos Spyrou, Yannis Avrithis, Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Roland Mörzinger, Peter Schallauer, Werner Bailer, Krishna Chandramouli, Ebroul Izquierdo, Lutz Goldmann, Martin Haller, Amjad Samour, Andreas Cobet, Thomas Sikora, Pavel Praks, David Hannah, Martin Halvey, Frank Hopfgartner, Robert Villa, P. Punitha, Anuj Goyal, Joemon M. Jose

Proceedings of the TRECVID 2008 workshop participants notebook papers, 2008

MESH participation to TRECVID2008 HLFE.

Javier Molina, José María Martínez Sanchez, Vasileios Mezaris, Georgios Th. Papadopoulos, Spiros Nikolopoulos, Ioannis Kompatsiaris, Anastasios Dimou, Paulo Villegas, J. Rodríguez-Benito, Eduard Bru, Tomasz Adamek, Giorgos Tolias, Evaggelos Spyrou, Natasa Sofou, Petros Kapsalas, Yannis Avrithis

Proceedings of the TRECVID 2008 workshop participants notebook papers, 2008

Semantic Video Analysis Based on Estimation and Representation of Higher-Order Motion Statistics.

Georgios Th. Papadopoulos, Alexia Briassouli, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

Proceedings of the Third International Workshop on Semantic Media Adaptation and Personalization, 2008

Estimation and representation of accumulated motion characteristics for semantic event detection.

Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

Proceedings of the International Conference on Image Processing, 2008

Accumulated motion energy fields estimation and representation for semantic event detection.

Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

Proceedings of the 7th ACM International Conference on Image and Video Retrieval, 2008

Knowledge-assisted cross-media analysis of audio-visual content in the news domain.

Vasileios Mezaris, Spyros Gidaros, Georgios Th. Papadopoulos, Walter Kasper, Roeland Ordelman, Franciska de Jong, Ioannis Kompatsiaris

Proceedings of the International Workshop on Content-Based Multimedia Indexing, 2008

2007

Combining Global and Local Information for Knowledge-Assisted Image Analysis and Classification.

Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

EURASIP J. Adv. Signal Process., 2007

K-Space at TRECVID 2007.

Peter Wilkins, Tomasz Adamek, Daragh Byrne, Gareth J. F. Jones, Hyowon Lee, Gordon Keenan, Kevin McGuinness, Noel E. O'Connor, Alan F. Smeaton, Alia Amin, Zeljko Obrenovic, Rachid Benmokhtar, Eric Galmar, Benoit Huet, Slim Essid, Rémi Landais, Félicien Vallet, Georgios Th. Papadopoulos, Stefanos Vrochidis, Vasileios Mezaris, Ioannis Kompatsiaris, Evaggelos Spyrou, Yannis Avrithis, Roland Mörzinger, Peter Schallauer, Werner Bailer, Tomas Piatrik, Krishna Chandramouli, Ebroul Izquierdo, Martin Haller, Lutz Goldmann, Amjad Samour, Andreas Cobet, Thomas Sikora, Pavel Praks

Proceedings of the TRECVID 2007 workshop participants notebook papers, 2007

Ontology-Driven Semantic Video Analysis Using Visual Information Objects.

Georgios Th. Papadopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Michael G. Strintzis

Proceedings of the Semantic Multimedia, 2007

Knowledge-based Semantic Annotation and Retrieval of Multimedia Content.

Giorgos Akrivas, Georgios Th. Papadopoulos, Matthijs Douze, Johannes Heinecke, Noel E. O'Connor, Carsten Saathoff, Simon Waddington

Proceedings of the Poster and Demo Proceedings of the 2nd International Conference on Semantic and Digital Media Technologies, 2007

Combining content and context information for semantic image analysis and classification.

Georgios Th. Papadopoulos, Vasileios Mezaris, Yiannis Kompatsiaris, Michael G. Strintzis

Proceedings of the 15th European Signal Processing Conference, 2007

2006

Knowledge-Assisted Image Analysis Based on Context and Spatial Optimization.

Georgios Th. Papadopoulos, Phivos Mylonas, Vasileios Mezaris, Yannis Avrithis, Ioannis Kompatsiaris

Int. J. Semantic Web Inf. Syst., 2006

Semantic Image Analysis Using a Learning Approach and Spatial Context.

Georgios Th. Papadopoulos, Vasileios Mezaris, Stamatia Dasiopoulou, Ioannis Kompatsiaris

Proceedings of the Semantic Multimedia, 2006

Using Context and a Genetic Algorithm for Knowledge Assisted Image Analysis.

Stamatia Dasiopoulou, Georgios Th. Papadopoulos, Phivos Mylonas, Yannis Avrithis, Yiannis Kompatsiaris

Proceedings of the Poster and Demo Proceedings of the 1st International Conference on Semantic and Digital Media Technologies, 2006

A learning approach to semantic image analysis.

Georgios Th. Papadopoulos, P. Panagi, Stamatia Dasiopoulou

Proceedings of the 2nd International Conference on Mobile Multimedia Communications, 2006