Human movement recognition using fuzzy clustering and discriminant analysis. - Nikolaos Gkalelis; Anastasios Tefas; Ioannis Pitas (EUSIPCO, 2008)

Sparse human movement representation and recognition. - Nikolaos Gkalelis; Anastasios Tefas; Ioannis Pitas (MMSP, 2008)

Combining Fuzzy Vector Quantization With Linear Discriminant Analysis for Continuous Human Movement Recognition. - Nikolaos Gkalelis; Anastasios Tefas; Ioannis Pitas (IEEE Trans. Circuits Syst. Video Technol., 2008)

Fusion of Movement Specific Human Identification Experts. - Nikolaos Gkalelis; Anastasios Tefas; Ioannis Pitas (COST 2101/2102 Conference, 2009)

Human identification from human movements. - Nikolaos Gkalelis; Anastasios Tefas; Ioannis Pitas (ICIP, 2009)

View indepedent human movement recognition from multi-view video exploiting a circular invariant posture representation. - Nikolaos Gkalelis; Nikos Nikolaidis 001; Ioannis Pitas (ICME, 2009)

Automatic event-based indexing of multimedia content using a joint content-event model. - Nikolaos Gkalelis; Vasileios Mezaris; Ioannis Kompatsiaris (EIMM@MM, 2010)

A Joint Content-Event Model for Event-Centric Multimedia Indexing. - Nikolaos Gkalelis; Vasileios Mezaris; Ioannis Kompatsiaris (ICSC, 2010)

ITI-CERTH participation to TRECVID 2010. - Anastasia Moumtzidou; Anastasios Dimou; Nikolaos Gkalelis; Stefanos Vrochidis; Vasileios Mezaris; Ioannis Kompatsiaris (TRECVID, 2010)

High-level event detection in video exploiting discriminant concepts. - Nikolaos Gkalelis; Vasileios Mezaris; Ioannis Kompatsiaris (CBMI, 2011)

High-level event detection system based on discriminant visual concepts. - Ioannis Tsampoulatidis; Nikolaos Gkalelis; Anastasios Dimou; Vasileios Mezaris; Ioannis Kompatsiaris (ICMR, 2011)

ITI-CERTH participation to TRECVID 2011. - Anastasia Moumtzidou; Panagiotis Sidiropoulos; Stefanos Vrochidis; Nikolaos Gkalelis; Spiros Nikolopoulos; Vasileios Mezaris; Ioannis Kompatsiaris; Ioannis Patras (TRECVID, 2011)

Mixture Subclass Discriminant Analysis. - Nikolaos Gkalelis; Vasileios Mezaris; Ioannis Kompatsiaris (IEEE Signal Process. Lett., 2011)

ITI-CERTH participation to TRECVID 2012. - Anastasia Moumtzidou; Nikolaos Gkalelis; Panagiotis Sidiropoulos; Michail Dimopoulos; Spiros Nikolopoulos; Stefanos Vrochidis; Vasileios Mezaris; Ioannis Kompatsiaris (TRECVID, 2012)

Linear Subclass Support Vector Machines. - Nikolaos Gkalelis; Vasileios Mezaris; Ioannis Kompatsiaris; Tania Stathaki (IEEE Signal Process. Lett., 2012)

Video event recounting using mixture subclass discriminant analysis. - Nikolaos Gkalelis; Vasileios Mezaris; Ioannis Kompatsiaris; Tania Stathaki (ICIP, 2013)

Video event detection using a subclass recoding error-correcting output codes framework. - Nikolaos Gkalelis; Vasileios Mezaris; Michail Dimopoulos; Ioannis Kompatsiaris; Tania Stathaki (ICME, 2013)

Improving event detection using related videos and relevance degree support vector machines. - Christos Tzelepis; Nikolaos Gkalelis; Vasileios Mezaris; Ioannis Kompatsiaris (ACM Multimedia, 2013)

ITI-CERTH participation to TRECVID 2013. - Fotini Markatopoulou; Anastasia Moumtzidou; Christos Tzelepis; Konstantinos Avgerinakis; Nikolaos Gkalelis; Stefanos Vrochidis; Vasileios Mezaris; Ioannis Kompatsiaris (TRECVID, 2013)

Mixture Subclass Discriminant Analysis Link to Restricted Gaussian Model and Other Generalizations. - Nikolaos Gkalelis; Vasileios Mezaris; Ioannis Kompatsiaris; Tania Stathaki (IEEE Trans. Neural Networks Learn. Syst., 2013)

Video event detection using generalized subclass discriminant analysis and linear support vector machines. - Nikolaos Gkalelis; Vasileios Mezaris (ICMR, 2014)

ITI-CERTH participation to TRECVID 2014. - Nikolaos Gkalelis; Foteini Markatopoulou; Anastasia Moumtzidou; Damianos Galanopoulos; Konstantinos Avgerinakis; Nikiforos Pittaras; Stefanos Vrochidis; Vasileios Mezaris; Ioannis Kompatsiaris; Ioannis Patras (TRECVID, 2014)

GPU Accelerated Generalised Subclass Discriminant Analysis for Event and Concept Detection in Video. - Stavros Arestis-Chartampilas; Nikolaos Gkalelis; Vasileios Mezaris (ACM Multimedia, 2015)

ITI-CERTH participation to TRECVID 2015. - Foteini Markatopoulou; Anastasia Ioannidou; Christos Tzelepis; Theodoros Mironidis; Damianos Galanopoulos; Stavros Arestis-Chartampilas; Nikiforos Pittaras; Konstantinos Avgerinakis; Nikolaos Gkalelis; Anastasia Moumtzidou; Stefanos Vrochidis; Vasileios Mezaris; et al. (TRECVID, 2015)

Accelerated nonlinear discriminant analysis. - Nikolaos Gkalelis; Vasileios Mezaris (CoRR, 2015)

AKSDA-MSVM: A GPU-accelerated Multiclass Learning Framework for Multimedia. - Stavros Arestis-Chartampilas; Nikolaos Gkalelis; Vasileios Mezaris (ACM Multimedia, 2016)

Incremental Accelerated Kernel Discriminant Analysis. - Nikolaos Gkalelis; Vasileios Mezaris (ACM Multimedia, 2017)

Fractional Step Discriminant Pruning: A Filter Pruning Framework for Deep Convolutional Neural Networks. - Nikolaos Gkalelis; Vasileios Mezaris (ICME Workshops, 2020)

Structured Pruning of LSTMs via Eigenanalysis and Geometric Median for Mobile Multimedia and Deep Learning Applications. - Nikolaos Gkalelis; Vasileios Mezaris (ISM, 2020)

Subclass Deep Neural Networks: Re-enabling Neglected Classes in Deep Network Training for Multimedia Classification. - Nikolaos Gkalelis; Vasileios Mezaris (MMM (1), 2020)

ObjectGraphs: Using Objects and a Graph Convolutional Network for the Bottom-Up Recognition and Explanation of Events in Video. - Nikolaos Gkalelis; Andreas Goulas; Damianos Galanopoulos; Vasileios Mezaris (CVPR Workshops, 2021)

Combining Multiple Deep-learning-based Image Features for Visual Sentiment Analysis. - Alexandros Pournaras; Nikolaos Gkalelis; Damianos Galanopoulos; Vasileios Mezaris (MediaEval, 2021)

Exploiting Out-of-Domain Datasets and Visual Representations for Image Sentiment Classification. - Alexandros Pournaras; Nikolaos Gkalelis; Damianos Galanopoulos; Vasileios Mezaris (SMAP, 2021)

Learning Visual Explanations for DCNN-Based Image Classifiers Using an Attention Mechanism. - Ioanna Gkartzonika; Nikolaos Gkalelis; Vasileios Mezaris (ECCV Workshops (8), 2022)

Gated-ViGAT: Efficient Bottom-Up Event Recognition and Explanation Using a New Frame Selection Policy and Gating Mechanism. - Nikolaos Gkalelis; Dimitrios Daskalakis; Vasileios Mezaris (ISM, 2022)

TAME: Attention Mechanism Based Feature Fusion for Generating Explanation Maps of Convolutional Neural Networks. - Mariano Ntrougkas; Nikolaos Gkalelis; Vasileios Mezaris (ISM, 2022)

ViGAT: Bottom-Up Event Recognition and Explanation in Video Using Factorized Graph Attention Network. - Nikolaos Gkalelis; Dimitrios Daskalakis; Vasileios Mezaris (IEEE Access, 2022)

Masked Feature Modelling for the unsupervised pre-training of a Graph Attention Network block for bottom-up video event recognition. - Dimitrios Daskalakis; Nikolaos Gkalelis; Vasileios Mezaris (ISM, 2023)

Masked Feature Modelling: Feature Masking for the Unsupervised Pre-training of a Graph Attention Network Block for Bottom-up Video Event Recognition. - Dimitrios Daskalakis; Nikolaos Gkalelis; Vasileios Mezaris (CoRR, 2023)

Filter-Pruning of Lightweight Face Detectors Using a Geometric Median Criterion. - Konstantinos Gkrispanis; Nikolaos Gkalelis; Vasileios Mezaris (WACV (Workshops), 2024)

T-TAME: Trainable Attention Mechanism for Explaining Convolutional Networks and Vision Transformers. - Mariano V. Ntrougkas; Nikolaos Gkalelis; Vasileios Mezaris (IEEE Access, 2024)