Nikolaos Gkalelis

47 papers A* 4A 2B 4C 6Journal 14Unranked 17

Year	Rank	Type	Title / Venue / Authors
2024	—	`conf`	Filter-Pruning of Lightweight Face Detectors Using a Geometric Median Criterion. WACV (Workshops) Konstantinos Gkrispanis, Nikolaos Gkalelis, Vasileios Mezaris
2024	J	`jnl`	T-TAME: Trainable Attention Mechanism for Explaining Convolutional Networks and Vision Transformers. IEEE Access Mariano V. Ntrougkas, Nikolaos Gkalelis, Vasileios Mezaris
2024	J	`jnl`	T-TAME: Trainable Attention Mechanism for Explaining Convolutional Networks and Vision Transformers. CoRR Mariano V. Ntrougkas, Nikolaos Gkalelis, Vasileios Mezaris
2023	J	`jnl`	Filter-Pruning of Lightweight Face Detectors Using a Geometric Median Criterion. CoRR Konstantinos Gkrispanis, Nikolaos Gkalelis, Vasileios Mezaris
2023	J	`jnl`	Gated-ViGAT: Efficient Bottom-Up Event Recognition and Explanation Using a New Frame Selection Policy and Gating Mechanism. CoRR Nikolaos Gkalelis, Dimitrios Daskalakis, Vasileios Mezaris
2023	C	`conf`	Masked Feature Modelling for the unsupervised pre-training of a Graph Attention Network block for bottom-up video event recognition. ISM Dimitrios Daskalakis, Nikolaos Gkalelis, Vasileios Mezaris
2023	J	`jnl`	Masked Feature Modelling: Feature Masking for the Unsupervised Pre-training of a Graph Attention Network Block for Bottom-up Video Event Recognition. CoRR Dimitrios Daskalakis, Nikolaos Gkalelis, Vasileios Mezaris
2023	J	`jnl`	TAME: Attention Mechanism Based Feature Fusion for Generating Explanation Maps of Convolutional Neural Networks. CoRR Mariano Ntrougkas, Nikolaos Gkalelis, Vasileios Mezaris
2022	C	`conf`	Gated-ViGAT: Efficient Bottom-Up Event Recognition and Explanation Using a New Frame Selection Policy and Gating Mechanism. ISM Nikolaos Gkalelis, Dimitrios Daskalakis, Vasileios Mezaris
2022	—	`conf`	Learning Visual Explanations for DCNN-Based Image Classifiers Using an Attention Mechanism. ECCV Workshops (8) Ioanna Gkartzonika, Nikolaos Gkalelis, Vasileios Mezaris
2022	J	`jnl`	Learning Visual Explanations for DCNN-Based Image Classifiers Using an Attention Mechanism. CoRR Ioanna Gkartzonika, Nikolaos Gkalelis, Vasileios Mezaris
2022	C	`conf`	TAME: Attention Mechanism Based Feature Fusion for Generating Explanation Maps of Convolutional Neural Networks. ISM Mariano Ntrougkas, Nikolaos Gkalelis, Vasileios Mezaris
2022	J	`jnl`	ViGAT: Bottom-Up Event Recognition and Explanation in Video Using Factorized Graph Attention Network. IEEE Access Nikolaos Gkalelis, Dimitrios Daskalakis, Vasileios Mezaris
2022	J	`jnl`	ViGAT: Bottom-up event recognition and explanation in video using factorized graph attention network. CoRR Nikolaos Gkalelis, Dimitrios Daskalakis, Vasileios Mezaris
2021	—	`conf`	Combining Multiple Deep-learning-based Image Features for Visual Sentiment Analysis. MediaEval Alexandros Pournaras, Nikolaos Gkalelis, Damianos Galanopoulos, Vasileios Mezaris
2021	—	`conf`	Exploiting Out-of-Domain Datasets and Visual Representations for Image Sentiment Classification. SMAP Alexandros Pournaras, Nikolaos Gkalelis, Damianos Galanopoulos, Vasileios Mezaris
2021	—	`conf`	ObjectGraphs: Using Objects and a Graph Convolutional Network for the Bottom-Up Recognition and Explanation of Events in Video. CVPR Workshops Nikolaos Gkalelis, Andreas Goulas, Damianos Galanopoulos, Vasileios Mezaris
2020	—	`conf`	Fractional Step Discriminant Pruning: A Filter Pruning Framework for Deep Convolutional Neural Networks. ICME Workshops Nikolaos Gkalelis, Vasileios Mezaris
2020	C	`conf`	Structured Pruning of LSTMs via Eigenanalysis and Geometric Median for Mobile Multimedia and Deep Learning Applications. ISM Nikolaos Gkalelis, Vasileios Mezaris
2020	—	`conf`	Subclass Deep Neural Networks: Re-enabling Neglected Classes in Deep Network Training for Multimedia Classification. MMM (1) Nikolaos Gkalelis, Vasileios Mezaris
2017	A*	`conf`	Incremental Accelerated Kernel Discriminant Analysis. ACM Multimedia Nikolaos Gkalelis, Vasileios Mezaris
2016	A*	`conf`	AKSDA-MSVM: A GPU-accelerated Multiclass Learning Framework for Multimedia. ACM Multimedia Stavros Arestis-Chartampilas, Nikolaos Gkalelis, Vasileios Mezaris
2015	J	`jnl`	Accelerated nonlinear discriminant analysis. CoRR Nikolaos Gkalelis, Vasileios Mezaris
2015	A*	`conf`	GPU Accelerated Generalised Subclass Discriminant Analysis for Event and Concept Detection in Video. ACM Multimedia Stavros Arestis-Chartampilas, Nikolaos Gkalelis, Vasileios Mezaris
2015	—	`conf`	ITI-CERTH participation to TRECVID 2015. TRECVID 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, Ioannis Kompatsiaris, Ioannis Patras
2014	—	`conf`	ITI-CERTH participation to TRECVID 2014. TRECVID Nikolaos Gkalelis, Foteini Markatopoulou, Anastasia Moumtzidou, Damianos Galanopoulos, Konstantinos Avgerinakis, Nikiforos Pittaras, Stefanos Vrochidis, Vasileios Mezaris, Ioannis Kompatsiaris, Ioannis Patras
2014	B	`conf`	Video event detection using generalized subclass discriminant analysis and linear support vector machines. ICMR Nikolaos Gkalelis, Vasileios Mezaris
2013	—	`conf`	ITI-CERTH participation to TRECVID 2013. TRECVID Fotini Markatopoulou, Anastasia Moumtzidou, Christos Tzelepis, Konstantinos Avgerinakis, Nikolaos Gkalelis, Stefanos Vrochidis, Vasileios Mezaris, Ioannis Kompatsiaris
2013	A*	`conf`	Improving event detection using related videos and relevance degree support vector machines. ACM Multimedia Christos Tzelepis, Nikolaos Gkalelis, Vasileios Mezaris, Ioannis Kompatsiaris
2013	J	`jnl`	Mixture Subclass Discriminant Analysis Link to Restricted Gaussian Model and Other Generalizations. IEEE Trans. Neural Networks Learn. Syst. Nikolaos Gkalelis, Vasileios Mezaris, Ioannis Kompatsiaris, Tania Stathaki
2013	A	`conf`	Video event detection using a subclass recoding error-correcting output codes framework. ICME Nikolaos Gkalelis, Vasileios Mezaris, Michail Dimopoulos, Ioannis Kompatsiaris, Tania Stathaki
2013	B	`conf`	Video event recounting using mixture subclass discriminant analysis. ICIP Nikolaos Gkalelis, Vasileios Mezaris, Ioannis Kompatsiaris, Tania Stathaki
2012	—	`conf`	ITI-CERTH participation to TRECVID 2012. TRECVID Anastasia Moumtzidou, Nikolaos Gkalelis, Panagiotis Sidiropoulos, Michail Dimopoulos, Spiros Nikolopoulos, Stefanos Vrochidis, Vasileios Mezaris, Ioannis Kompatsiaris
2012	J	`jnl`	Linear Subclass Support Vector Machines. IEEE Signal Process. Lett. Nikolaos Gkalelis, Vasileios Mezaris, Ioannis Kompatsiaris, Tania Stathaki
2011	C	`conf`	High-level event detection in video exploiting discriminant concepts. CBMI Nikolaos Gkalelis, Vasileios Mezaris, Ioannis Kompatsiaris
2011	B	`conf`	High-level event detection system based on discriminant visual concepts. ICMR Ioannis Tsampoulatidis, Nikolaos Gkalelis, Anastasios Dimou, Vasileios Mezaris, Ioannis Kompatsiaris
2011	—	`conf`	ITI-CERTH participation to TRECVID 2011. TRECVID Anastasia Moumtzidou, Panagiotis Sidiropoulos, Stefanos Vrochidis, Nikolaos Gkalelis, Spiros Nikolopoulos, Vasileios Mezaris, Ioannis Kompatsiaris, Ioannis Patras
2011	J	`jnl`	Mixture Subclass Discriminant Analysis. IEEE Signal Process. Lett. Nikolaos Gkalelis, Vasileios Mezaris, Ioannis Kompatsiaris
2010	—	`conf`	A Joint Content-Event Model for Event-Centric Multimedia Indexing. ICSC Nikolaos Gkalelis, Vasileios Mezaris, Ioannis Kompatsiaris
2010	—	`conf`	Automatic event-based indexing of multimedia content using a joint content-event model. EIMM@MM Nikolaos Gkalelis, Vasileios Mezaris, Ioannis Kompatsiaris
2010	—	`conf`	ITI-CERTH participation to TRECVID 2010. TRECVID Anastasia Moumtzidou, Anastasios Dimou, Nikolaos Gkalelis, Stefanos Vrochidis, Vasileios Mezaris, Ioannis Kompatsiaris
2009	—	`conf`	Fusion of Movement Specific Human Identification Experts. COST 2101/2102 Conference Nikolaos Gkalelis, Anastasios Tefas, Ioannis Pitas
2009	B	`conf`	Human identification from human movements. ICIP Nikolaos Gkalelis, Anastasios Tefas, Ioannis Pitas
2009	A	`conf`	View indepedent human movement recognition from multi-view video exploiting a circular invariant posture representation. ICME Nikolaos Gkalelis, Nikos Nikolaidis, Ioannis Pitas
2008	J	`jnl`	Combining Fuzzy Vector Quantization With Linear Discriminant Analysis for Continuous Human Movement Recognition. IEEE Trans. Circuits Syst. Video Technol. Nikolaos Gkalelis, Anastasios Tefas, Ioannis Pitas
2008	—	`conf`	Human movement recognition using fuzzy clustering and discriminant analysis. EUSIPCO Nikolaos Gkalelis, Anastasios Tefas, Ioannis Pitas
2008	C	`conf`	Sparse human movement representation and recognition. MMSP Nikolaos Gkalelis, Anastasios Tefas, Ioannis Pitas