Constantine Kotropoulos

228 papers A* 1A 6B 11C 19Misc 16Journal 77Unranked 97

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	AdaCubic: An Adaptive Cubic Regularization Optimizer for Deep Learning. Trans. Mach. Learn. Res. Ioannis Tsingalis, Constantine Kotropoulos, Corentin Briat
2026	J	`jnl`	Scribe Verification in Chinese manuscripts using Siamese, Triplet, and Vision Transformer Neural Networks. CoRR Dimitrios-Chrysovalantis Liakopoulos, Yanbo Zhang, Chongsheng Zhang, Constantine Kotropoulos
2025	J	`jnl`	DeepENF: A data-driven Electric Network Frequency estimation framework. Pattern Recognit. Lett. Ioannis Tsingalis, Constantine Kotropoulos
2025	J	`jnl`	InterGridNet: An Electric Network Frequency Approach for Audio Source Location Classification Using Convolutional Neural Networks. CoRR Christos Korgialas, Ioannis Tsingalis, Georgios Tzolopoulos, Constantine Kotropoulos
2025	J	`jnl`	LNN-PARAFAC2: Lightweight Non-Negative PARAFAC2 With Applications in Cross-Lingual Document Classification. IEEE Access Ioannis Tsingalis, Evangelia Pantraki, Constantine Kotropoulos
2025	J	`jnl`	On Combining Deep Neural Network Classifiers for Source Device Identification. IEEE Access Ioannis Tsingalis, Constantine Kotropoulos
2025	J	`jnl`	Quantized Rank Reduction: A Communications-Efficient Federated Learning Scheme for Network-Critical Applications. CoRR Dimitrios Kritsiolis, Constantine Kotropoulos
2024	—	`conf`	A Robust RELAX-Based Algorithm for Enhanced Electric Network Frequency Estimation. SETN Christos Korgialas, Constantine Kotropoulos
2024	J	`jnl`	Addressing Machine Learning Problems in the Non-Negative Orthant. IEEE Trans. Emerg. Top. Comput. Intell. Ioannis Tsingalis, Constantine Kotropoulos
2024	C	`conf`	Applying the Neural Bellman-Ford Model to the Single Source Shortest Path Problem. ICPRAM Spyridon Drakakis, Constantine Kotropoulos
2024	J	`jnl`	Camera Model Identification Using Audio and Visual Content from Videos. CoRR Ioannis Tsingalis, Christos Korgialas, Constantine Kotropoulos
2024	J	`jnl`	Constructing and Analyzing Different Density Graphs for Path Extrapolation in Wikipedia. CoRR Martha Sotiroudi, Anastasia-Sotiria Toufa, Constantine Kotropoulos
2024	J	`jnl`	Detect with Style: A Contrastive Learning Framework for Detecting Computer-Generated Images. Inf. Georgios Karantaidis, Constantine Kotropoulos
2024	—	`conf`	Explainable Camera Model Identification Employing Log-Mel Spectrograms from Videos' Audio. IEEECONF Christos Korgialas, Ioannis Tsingalis, Constantine Kotropoulos
2024	Misc	`conf`	Interpretable Face Aging: Enhancing Conditional Adversarial Autoencoders with Lime Explanations. ICASSP Christos Korgialas, Evangelia Pantraki, Constantine Kotropoulos
2024	J	`jnl`	Leveraging Electric Network Frequency Estimation for Audio Authentication. IEEE Access Christos Korgialas, Constantine Kotropoulos, Konstantinos N. Plataniotis
2024	C	`conf`	Mobile Phone Identification from Recorded Speech Signals Using Non-Speech Segments and Universal Background Model Adaptation. ICPRAM Dimitrios Kritsiolis, Constantine Kotropoulos
2024	J	`jnl`	On Explainable Closed-Set Source Device Identification Using Log-Mel Spectrograms From Videos' Audio: A Grad-CAM Approach. IEEE Access Christos Korgialas, Georgios Tzolopoulos, Constantine Kotropoulos
2024	C	`conf`	On Spectrogram Analysis in a Multiple Classifier Fusion Framework for Power Grid Classification Using Electric Network Frequency. ICPRAM Georgios Tzolopoulos, Christos Korgialas, Constantine Kotropoulos
2024	J	`jnl`	On Spectrogram Analysis in a Multiple Classifier Fusion Framework for Power Grid Classification Using Electric Network Frequency. CoRR Georgios Tzolopoulos, Christos Korgialas, Constantine Kotropoulos
2024	—	`conf`	Speech Pathology Classification. IEEECONF Spyridon Drakakis, Athina Gourou, Samouil Pratzioti, Constantine Kotropoulos
2023	J	`jnl`	An Autoregressive Graph Convolutional Long Short-Term Memory Hybrid Neural Network for Accurate Prediction of COVID-19 Cases. IEEE Trans. Comput. Soc. Syst. Myrsini Ntemi, Ioannis Sarridis, Constantine Kotropoulos
2023	B	`conf`	Dual Hypergraph Features for Path Inference in Wikipedia Links. IJCNN Anastasia-Sotiria Toufa, Constantine Kotropoulos, Ioannis Tsingalis
2023	—	`conf`	DualGRETEL+: Exploiting Dual Hypergraphs for Path Inference Applied to Navigation Data. PCI Anastasia-Sotiria Toufa, Ioannis Tsingalis, Constantine Kotropoulos
2023	Misc	`conf`	Electric Network Frequency Detection Using Least Absolute Deviations. ICASSP Christos Korgialas, Constantine Kotropoulos
2023	J	`jnl`	Electric Network Frequency Optical Sensing Devices. CoRR Christos Moysiadis, Georgios Karantaidis, Constantine Kotropoulos
2023	J	`jnl`	Face Aging by Explainable Conditional Adversarial Autoencoders. J. Imaging Christos Korgialas, Evangelia Pantraki, Angeliki Bolari, Martha Sotiroudi, Constantine Kotropoulos
2023	—	`conf`	On Robust Electric Network Frequency Detection Using Huber Regression. PCI Christos Korgialas, Constantine Kotropoulos
2022	—	`conf`	Authorship Attribution in Greek Literature Using Word Adjacencies. SETN Rizos-Theodoros Chadoulis, Andreas Nikolaou, Constantine Kotropoulos
2022	J	`jnl`	Cross-lingual transfer learning: A PARAFAC2 approach. Pattern Recognit. Lett. Evangelia Pantraki, Ioannis Tsingalis, Constantine Kotropoulos
2022	—	`conf`	Image Driven Optimal Personalized Route Recommendation. IVMSP Ioannis Sarridis, Georgios Karantaidis, Constantine Kotropoulos
2022	J	`jnl`	Non-Negative Sparse PCA: An Intelligible Exact Approach. IEEE Trans. Emerg. Top. Comput. Intell. Ioannis Tsingalis, Constantine Kotropoulos, Anastasios Drosou, Dimitrios Tzovaras
2022	J	`jnl`	Online hotel rating prediction through a dynamic weighted ordered probit model. Digit. Signal Process. Myrsini Ntemi, Constantine Kotropoulos
2021	—	`conf`	A Multi-step Ahead Dyadic Particle Filter for Price Prediction. EUSIPCO Myrsini Ntemi, Constantine Kotropoulos
2021	J	`jnl`	A jump-diffusion particle filter for price prediction. Signal Process. Myrsini Ntemi, Constantine Kotropoulos
2021	J	`jnl`	Adaptive hypergraph learning with multi-stage optimizations for image and tag recommendation. Signal Process. Image Commun. Georgios Karantaidis, Ioannis Sarridis, Constantine Kotropoulos
2021	J	`jnl`	An Automated Approach for Electric Network Frequency Estimation in Static and Non-Static Digital Video Recordings. J. Imaging Georgios Karantaidis, Constantine Kotropoulos
2021	J	`jnl`	Blackman-Tukey spectral estimation and electric network frequency matching from power mains and speech recordings. IET Signal Process. Georgios Karantaidis, Constantine Kotropoulos
2021	J	`jnl`	Face aging using global and pyramid generative adversarial networks. Mach. Vis. Appl. Evangelia Pantraki, Constantine Kotropoulos
2021	—	`conf`	Neural Factorization Applied to Interaction Matrix for Recommendation. EUSIPCO Ioannis Sarridis, Constantine Kotropoulos
2021	—	`conf`	Opinion Recommendation Using Coverage for Adaptive Prediction. MLSP Emmanouil Gionanidis, Constantine Kotropoulos, Myrsini Ntemi
2020	J	`jnl`	A dynamic dyadic particle filter for price prediction. Signal Process. Myrsini Ntemi, Constantine Kotropoulos
2020	—	`conf`	Datasets and Performance Metrics for Greek Named Entity Recognition. SETN Nikos Bartziokas, Thanassis Mavropoulos, Constantine Kotropoulos
2020	B	`conf`	Digit Recognition Applied to Reconstructed Audio Signals Using Deep Learning. ICPR Anastasia-Sotiria Toufa, Constantine Kotropoulos
2020	J	`jnl`	Subspace Learning and Feature Selection via Orthogonal Mapping. IEEE Trans. Signal Process. Fotios D. Mandanas, Constantine Kotropoulos
2019	—	`conf`	A Dyadic Particle Filter for Price Prediction. EUSIPCO Myrsini Ntemi, Constantine Kotropoulos
2019	B	`conf`	A Simple Algorithm for Non-Negative Sparse Principal Component Analysis. ICIP Ioannis Tsingalis, Constantine Kotropoulos
2019	—	`conf`	A Weighted Ordered Probit Collaborative Kalman Filter For Hotel Rating Prediction. MLSP Myrsini Ntemi, Constantine Kotropoulos, Emmanouil Gionanidis
2019	B	`conf`	Block Randomized Optimization for Adaptive Hypergraph Learning. ICIP George Karantaidis, Ioannis Sarridis, Constantine Kotropoulos
2019	J	`jnl`	Block Randomized Optimization for Adaptive Hypergraph Learning. CoRR Georgios Karantaidis, Ioannis Sarridis, Constantine Kotropoulos
2019	J	`jnl`	Efficient Capon-Based Approach Exploiting Temporal Windowing For Electric Network Frequency Estimation. CoRR Georgios Karantaidis, Constantine Kotropoulos
2019	—	`conf`	Efficient Capon-Based Approach Exploiting Temporal Windowing for Electric Network Frequency Estimation. MLSP George Karantaidis, Constantine Kotropoulos
2019	Misc	`conf`	Leveraging Image-to-image Translation Generative Adversarial Networks for Face Aging. ICASSP Evangelia Pantraki, Constantine Kotropoulos, Andreas Lanitis
2018	—	`conf`	Assessing spectral estimation methods for electric network frequency extraction. PCI Georgios Karantaidis, Constantine Kotropoulos
2018	—	`conf`	Face Aging as Image-to-Image Translation Using Shared-Latent Space Generative Adversarial Networks. GlobalSIP Evangelia Pantraki, Constantine Kotropoulos
2018	J	`jnl`	M-estimators for robust multidimensional scaling employing ℓ Pattern Recognit. Fotios D. Mandanas, Constantine Kotropoulos
2018	—	`conf`	Prediction Methods for Time Evolving Dyadic Processes. EUSIPCO Myrsini Ntemi, Constantine Kotropoulos
2017	J	`jnl`	Age interval and gender prediction using PARAFAC2 and SVMs based on visual and aural features. IET Biom. Evangelia Pantraki, Constantine Kotropoulos, Andreas Lanitis
2017	—	`conf`	Multi-way regression for age prediction exploiting speech and face image information. EUSIPCO Evangelia Pantraki, Constantine Kotropoulos
2017	—	`conf`	Robust multidimensional scaling employing M-estimators and nuclear norm regularization. GlobalSIP Fotios D. Mandanas, Constantine Kotropoulos
2017	—	`conf`	Using marginal median and block least mean squares in mobile adaptive networks. GlobalSIP Fotios D. Mandanas, Constantine Kotropoulos
2016	Misc	`conf`	Adaptive algorithms for hypergraph learning. ICASSP Aikaterini Chasapi, Constantine Kotropoulos, Konstantinos Pliakos
2016	—	`conf`	Age interval and gender prediction using PARAFAC2 applied to speech utterances. IWBF Evangelia Pantraki, Constantine Kotropoulos, Andreas Lanitis
2016	—	`conf`	Enhanced similarities for a music Recommender System. DMIAF Vasileios Gavriilidis, Anastasios Tefas, Constantine Kotropoulos, Nikos Nikolaidis
2016	—	`conf`	Greek folk music classification using auditory cortical representations. EUSIPCO Eftychia Fotiadou, Nikoletta Bassiou, Constantine Kotropoulos
2016	—	`conf`	Restoration of missing data in Greek folk music by interpolation techniques. DMIAF Paschalina Medentzidou, Constantine Kotropoulos
2015	Misc	`conf`	A maximum correntropy criterion for robust multidimensional scaling. ICASSP Fotios D. Mandanas, Constantine Kotropoulos
2015	—	`conf`	Automatic image tagging and recommendation via PARAFAC2. MLSP Evangelia Pantraki, Constantine Kotropoulos
2015	J	`jnl`	Building an Image Annotation and Tourism Recommender System. Int. J. Artif. Intell. Tools Konstantinos Pliakos, Constantine Kotropoulos
2015	—	`conf`	Correntropy based robust multidimensional scaling applied to faces. IWBF Fotios D. Mandanas, Constantine Kotropoulos
2015	C	`conf`	Greek folk music classification into two genres using lyrics and audio via canonical correlation analysis. ISPA Nikoletta Bassiou, Constantine Kotropoulos, Anastasios Papazoglou-Chalikias
2015	C	`conf`	Image tag recommendation based on novel tensor structures and their decompositions. ISPA Panagiotis Barmpoutis, Constantine Kotropoulos, Konstantinos Pliakos
2015	—	`conf`	Image tagging using tensor decomposition. IISA Michail Panagopoulos, Constantine Kotropoulos
2015	—	`conf`	Random subspace method for source camera identification. MLSP Ruizhe Li, Constantine Kotropoulos, Chang-Tsun Li, Yu Guan
2015	C	`conf`	Video summarization based on shot boundary detection with penalized contrasts. ISPA Paschalina Medentzidou, Constantine Kotropoulos
2015	Misc	`conf`	Weight estimation in hypergraph learning. ICASSP Konstantinos Pliakos, Constantine Kotropoulos
2014	—	`conf`	Boosting the weights of positive words in image retrieval. EUSIPCO Emmanouil Giouvanakis, Constantine Kotropoulos
2014	J	`jnl`	Elastic Net subspace clustering applied to pop/rock music structure analysis. Pattern Recognit. Lett. Yannis Panagakis, Constantine Kotropoulos
2014	C	`conf`	Greek folk music denoising under a symmetric α-stable noise assumption. QSHINE Nikoletta Bassiou, Constantine Kotropoulos, Ioannis Pitas
2014	—	`conf`	Mobile phone identification using recorded speech signals. DSP Constantine Kotropoulos, Stamatios Samaras
2014	J	`jnl`	Music genre classification via joint sparse low-rank representation of audio features. IEEE ACM Trans. Audio Speech Lang. Process. Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce
2014	—	`conf`	Musical Audio Denoising Assuming Symmetric α-Stable Noise. ICMC Nikoletta Bassiou, Constantine Kotropoulos
2014	J	`jnl`	Online PLSA: Batch Updating Techniques Including Out-of-Vocabulary Words. IEEE Trans. Neural Networks Learn. Syst. Nikoletta K. Bassiou, Constantine Kotropoulos
2014	B	`conf`	PLSA driven image annotation, classification, and tourism recommendation. ICIP Konstantinos Pliakos, Constantine Kotropoulos
2014	—	`conf`	Personalized and geo-referenced image recommendation using unified hypergraph learning and group sparsity optimization. ISCCSP Konstantinos Pliakos, Constantine Kotropoulos
2014	—	`conf`	Personalized music tagging using ranking on hypergraphs. ISCCSP Konstantinos Pliakos, Constantine Kotropoulos
2014	—	`conf`	Saliency map driven image retrieval combining the bag-of-words model and PLSA. DSP Emmanouil Giouvanakis, Constantine Kotropoulos
2014	—	`conf`	Simultaneous Image Clustering, Classification and Annotation for Tourism Recommendation. SETN Konstantinos Pliakos, Constantine Kotropoulos
2014	Misc	`conf`	Simultaneous image tagging and geo-location prediction within hypergraph ranking framework. ICASSP Konstantinos Pliakos, Constantine Kotropoulos
2014	C	`conf`	Social image search exploiting joint visual-textual information within a fuzzy hypergraph framework. MMSP Konstantinos Pliakos, Constantine Kotropoulos
2014	J	`jnl`	Source phone identification using sketches of features. IET Biom. Constantine Kotropoulos
2014	—	`conf`	Subspace clustering applied to face images. IWBF Constantine Kotropoulos, Konstantinos Pitas
2013	—	`conf`	A game with a purpose for annotating Greek folk music in a web content management system. DSP Emmanouil Giouvanakis, Constantine Kotropoulos, Antonis Theodoridis, Ioannis Pitas
2013	J	`jnl`	Music classification by low-rank semantic mappings. EURASIP J. Audio Speech Music. Process. Yannis Panagakis, Constantine Kotropoulos
2013	Misc	`conf`	Music recommendation using hypergraphs and group sparsity. ICASSP Antonis Theodoridis, Constantine Kotropoulos, Yannis Panagakis
2013	C	`conf`	Symmetric α-stable sparse linear regression for musical audio denoising. ISPA Nikoletta Bassiou, Constantine Kotropoulos, Evangelia Koliopoulou
2013	J	`jnl`	Telephone Handset Identification by Collaborative Representations. Int. J. Digit. Crime Forensics Yannis Panagakis, Constantine Kotropoulos
2013	—	`conf`	Telephone handset identification using sparse representations of spectral feature sketches. IWBF Constantine Kotropoulos
2012	Misc	`conf`	Automatic music tagging by low-rank representation. ICASSP Yannis Panagakis, Constantine Kotropoulos
2012	—	`conf`	Automatic telephone handset identification by sparse representation of random spectral features. MM&Sec Yannis Panagakis, Constantine Kotropoulos
2012	—	`conf`	Music Structure Analysis by Ridge Regression of Beat-synchronous Audio Features. ISMIR Yannis Panagakis, Constantine Kotropoulos
2012	—	`conf`	Music structure analysis by subspace modeling. EUSIPCO Yannis Panagakis, Constantine Kotropoulos
2012	—	`conf`	Telephone handset identification by feature selection and sparse representations. WIFS Yannis Panagakis, Constantine Kotropoulos
2011	—	`conf`	Automatic music mood classification via Low-Rank Representation. EUSIPCO Yannis Panagakis, Constantine Kotropoulos
2011	Misc	`conf`	Automatic music tagging via PARAFAC2. ICASSP Yannis Panagakis, Constantine Kotropoulos
2011	J	`jnl`	Long distance bigram models applied to word clustering. Pattern Recognit. Nikoletta Bassiou, Constantine Kotropoulos
2011	J	`jnl`	RPLSA: A novel updating scheme for Probabilistic Latent Semantic Analysis. Comput. Speech Lang. Nikoletta Bassiou, Constantine Kotropoulos
2011	—	`conf`	l1-Graph Based Music Structure Analysis. ISMIR Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce
2010	B	`conf`	Ensemble Discriminant Sparse Projections Applied to Music Genre Classification. ICPR Constantine Kotropoulos, Gonzalo R. Arce, Yannis Panagakis
2010	Misc	`conf`	Music genre classification via Topology Preserving Non-Negative Tensor Factorization and sparse representations. ICASSP Yannis Panagakis, Constantine Kotropoulos
2010	J	`jnl`	Non-Negative Multilinear Principal Component Analysis of Auditory Temporal Modulations for Music Genre Classification. IEEE Trans. Speech Audio Process. Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce
2010	J	`jnl`	Non-Negative Tensor Factorization Applied to Music Genre Classification. IEEE Trans. Speech Audio Process. Emmanouil Benetos, Constantine Kotropoulos
2010	—	`conf`	Sparse Multi-label Linear Embedding Within Nonnegative Tensor Factorization Applied to Music Tagging. ISMIR Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce
2010	—	`conf`	Sparse multi-label linear embedding nonnegative tensor factorization for automatic music tagging. EUSIPCO Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce
2010	J	`jnl`	Speaker Diarization Exploiting the Eigengap Criterion and Cluster Ensembles. IEEE Trans. Speech Audio Process. Nikoletta Bassiou, Vassiliki Moschou, Constantine Kotropoulos
2010	—	`conf`	Speaker-independent negative emotion recognition. CIP Margarita Kotti, Fabio Paternò, Constantine Kotropoulos
2010	B	`conf`	Word Clustering Using PLSA Enhanced with Long Distance Bigrams. ICPR Nikoletta Bassiou, Constantine Kotropoulos
2009	J	`jnl`	Information Loss of the Mahalanobis Distance in High Dimensions: Application to Feature Selection. IEEE Trans. Pattern Anal. Mach. Intell. Dimitrios Ververidis, Constantine Kotropoulos
2009	J	`jnl`	Linear Classifier with Reject Option for the Detection of Vocal Fold Paralysis and Vocal Fold Edema. EURASIP J. Adv. Signal Process. Constantine Kotropoulos, Gonzalo R. Arce
2009	—	`conf`	Music Genre Classification Using Locality Preserving Non-Negative Tensor Factorization and Sparse Representations. ISMIR Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce
2009	—	`conf`	Music genre classification via sparse representations of auditory temporal modulations. EUSIPCO Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce
2009	J	`jnl`	Robust Detection of Phone Boundaries Using Model Selection Criteria With Few Observations. IEEE Trans. Speech Audio Process. George Almpanidis, Margarita Kotti, Constantine Kotropoulos
2008	—	`conf`	A tensor-based approach for automatic music genre classification. EUSIPCO Emmanouil Benetos, Constantine Kotropoulos
2008	J	`jnl`	Fast and accurate sequential floating forward feature selection with the Bayes classifier applied to speech emotion recognition. Signal Process. Dimitrios Ververidis, Constantine Kotropoulos
2008	J	`jnl`	Gaussian Mixture Modeling by Exploiting the Mahalanobis Distance. IEEE Trans. Signal Process. Dimitrios Ververidis, Constantine Kotropoulos
2008	B	`conf`	Gender classification in two Emotional Speech databases. ICPR Margarita Kotti, Constantine Kotropoulos
2008	—	`ch.`	Movie Analysis with Emphasis to Dialogue and Action Scene Detection. Multimodal Processing and Interaction Emmanouil Benetos, Spyridon Siatras, Constantine Kotropoulos, Nikos Nikolaidis, Ioannis Pitas
2008	—	`conf`	Multimodal Speaker Identification Based on Text and Speech. BIOID Panagiotis Moschonas, Constantine Kotropoulos
2008	—	`conf`	Music Genre Classification: A Multilinear Approach. ISMIR Ioannis Panagakis, Emmanouil Benetos, Constantine Kotropoulos
2008	J	`jnl`	Phonemic segmentation using the generalised Gamma distribution and small sample Bayesian information criterion. Speech Commun. George Almpanidis, Constantine Kotropoulos
2008	J	`jnl`	Speaker segmentation and clustering. Signal Process. Margarita Kotti, Vassiliki Moschou, Constantine Kotropoulos
2007	J	`jnl`	A neural network approach to audio-assisted movie dialogue detection. Neurocomputing Margarita Kotti, Emmanouil Benetos, Constantine Kotropoulos, Ioannis Pitas
2007	J	`jnl`	Assessment of self-organizing map variants for clustering with application to redistribution of emotional speech patterns. Neurocomputing Vassiliki Moschou, Dimitrios Ververidis, Constantine Kotropoulos
2007	—	`conf`	Automatic phonemic segmentation using the Bayesian information criterion with generalised Gamma priors. EUSIPCO George Almpanidis, Constantine Kotropoulos
2007	J	`jnl`	Color image histogram equalization by absolute discounting back-off. Comput. Vis. Image Underst. Nikoletta Bassiou, Constantine Kotropoulos
2007	J	`jnl`	Combining text and link analysis for focused crawling - An application for vertical search engines. Inf. Syst. George Almpanidis, Constantine Kotropoulos, Ioannis Pitas
2007	J	`jnl`	Enhanced Eigen-Audioframes for Audiovisual Scene Change Detection. IEEE Trans. Multim. Marios Kyperountas, Constantine Kotropoulos, Ioannis Pitas
2007	—	`conf`	Improving speech emotion recognition using adaptive genetic algorithms. EUSIPCO Mohammad Hossein Sedaaghi, Dimitrios Ververidis, Constantine Kotropoulos
2007	C	`conf`	Systematic comparison of BIC-based speaker segmentation systems. MMSP Vassiliki Moschou, Margarita Kotti, Emmanouil Benetos, Constantine Kotropoulos
2007	C	`conf`	Using Adaptive Genetic Algorithms to Improve Speech Emotion Recognition. MMSP Mohammad Hosein Sedaaghi, Constantine Kotropoulos, Dimitrios Ververidis
2007	J	`jnl`	Video shot-boundary detection using singular-value decomposition and statistical tests. J. Electronic Imaging Zuzana Cernekova, Constantine Kotropoulos, Ioannis Pitas
2006	—	`conf`	A Framework for Dialogue Detection in Movies. MRCS Margarita Kotti, Constantine Kotropoulos, Bartosz Ziólko, Ioannis Pitas, Vassiliki Moschou
2006	—	`conf`	A Novel Updating Scheme for Probabilistic Latent Semantic Indexing. SETN Constantine Kotropoulos, Athanasios Papaioannou
2006	A	`conf`	Applying Supervised Classifiers Based on Non-negative Matrix Factorization to Musical Instrument Classification. ICME Emmanouil Benetos, Margarita Kotti, Constantine Kotropoulos
2006	A	`conf`	Automatic Speaker Segmentation using Multiple Features and Distance Measures: A Comparison of Three Approaches. ICME Margarita Kotti, Luis P. M. Martins, Emmanouil Benetos, Jaime S. Cardoso, Constantine Kotropoulos
2006	C	`conf`	Automatic speaker change detection with the Bayesian information criterion using MPEG-7 features and a fusion scheme. ISCAS Margarita Kotti, Emmanouil Benetos, Constantine Kotropoulos
2006	—	`conf`	Color histogram equalization using probability smoothing. EUSIPCO Nikoletta Bassiou, Constantine Kotropoulos
2006	J	`jnl`	Demonstrating the stability of support vector machines for classification. Signal Process. Ioan Buciu, Constantine Kotropoulos, Ioannis Pitas
2006	—	`conf`	Detection of Vocal Fold Paralysis and Edema Using Linear Discriminant Classifiers. SETN Euthymius Ziogas, Constantine Kotropoulos
2006	J	`jnl`	Emotional speech recognition: Resources, features, and methods. Speech Commun. Dimitrios Ververidis, Constantine Kotropoulos
2006	—	`conf`	Fast sequential floating forward selection applied to emotional speech features estimated on DES and SUSAS data collections. EUSIPCO Dimitrios Ververidis, Constantine Kotropoulos
2006	C	`conf`	Feature Selection Based on Mutual Correlation. CIARP Michal Haindl, Petr Somol, Dimitrios Ververidis, Constantine Kotropoulos
2006	—	`conf`	Musical Instrument Classification using Non-Negative Matrix Factorization Algorithms and Subset Feature Selection. ICASSP (5) Emmanouil Benetos, Margarita Kotti, Constantine Kotropoulos
2006	C	`conf`	Musical instrument classification using non-negative matrix factorization algorithms. ISCAS Emmanouil Benetos, Margarita Kotti, Constantine Kotropoulos
2006	—	`conf`	On the Variants of the Self-Organizing Map That Are Based on Order Statistics. ICANN (1) Vassiliki Moschou, Dimitrios Ververidis, Constantine Kotropoulos
2006	—	`conf`	Self Organizing Maps for Reducing the Number of Clusters by One on Simplex Subspaces. ICASSP (5) Constantine Kotropoulos, Vassiliki Moschou
2006	—	`conf`	Testing supervised classifiers based on non-negative matrix factorization to musical instrument classification. EUSIPCO Emmanouil Benetos, Constantine Kotropoulos, Thomas Lidy, Andreas Rauber
2006	—	`conf`	Voice Activity Detection Using Generalized Gamma Distribution. SETN George Almpanidis, Constantine Kotropoulos
2006	A	`conf`	Voice Activity Detection with Generalized Gamma Distribution. ICME George Almpanidis, Constantine Kotropoulos
2005	—	`conf`	Combining Text and Link Analysis for Focused Crawling. ICAPR (1) George Almpanidis, Constantine Kotropoulos
2005	—	`conf`	Coordinate descent iterations in pseudo affine projection algorithm. ISCAS (3) Felix Albu, Constantine Kotropoulos
2005	A	`conf`	Emotional Speech Classification Using Gaussian Mixture Models and the Sequential Floating Forward Selection Algorithm. ICME Dimitrios Ververidis, Constantine Kotropoulos
2005	—	`conf`	Emotional speech classification using Gaussian mixture models. ISCAS (3) Dimitrios Ververidis, Constantine Kotropoulos
2005	—	`conf`	Focused Crawling Using Latent Semantic Indexing - An Application for Vertical Search Engines. ECDL George Almpanidis, Constantine Kotropoulos, Ioannis Pitas
2005	—	`conf`	Modified Gauss-Seidel affine projection algorithm for acoustic echo cancellation. ICASSP (3) Felix Albu, Constantine Kotropoulos
2005	—	`conf`	Sequential forward feature selection with low computational cost. EUSIPCO Dimitrios Ververidis, Constantine Kotropoulos
2005	—	`conf`	Video shot segmentation using fusion of SVD and mutual information features. ISCAS (4) Zuzana Cernekova, Constantine Kotropoulos, Nikolaos Nikolaidis, Ioannis Pitas
2004	—	`conf`	Audio PCA in a novel multimedia scheme for scene change detection. ICASSP (4) Marios Kyperountas, Zuzana Cernekova, Constantine Kotropoulos, Marios A. Gavrielides, Ioannis Pitas
2004	A	`conf`	Automatic detection of vocal fold paralysis and edema. INTERSPEECH Maria Marinaki, Constantine Kotropoulos, Ioannis Pitas, Nikolaos Maglaveras
2004	—	`conf`	Automatic emotional speech classification. ICASSP (1) Dimitrios Ververidis, Constantine Kotropoulos, Ioannis Pitas
2004	—	`conf`	Automatic speech classification to five emotional states based on gender information. EUSIPCO Dimitrios Ververidis, Constantine Kotropoulos
2004	J	`jnl`	Language identification in web documents using discrete HMMs. Pattern Recognit. Alexandros Xafopoulos, Constantine Kotropoulos, George Almpanidis, Ioannis Pitas
2004	J	`jnl`	Marginal median SOM for document organization and retrieval. Neural Networks Apostolos Georgakis, Constantine Kotropoulos, Alexandros Xafopoulos, Ioannis Pitas
2003	C	`conf`	CAML - A Universal Configuration Language for Dialogue Systems. DEXA Gergely Kovásznai, Constantine Kotropoulos, Ioannis Pitas
2003	—	`conf`	ICA and Gabor representation for facial expression recognition. ICIP (2) Ioan Buciu, Constantine Kotropoulos, Ioannis Pitas
2003	J	`jnl`	Preface. Pattern Recognit. Lett. Constantine Kotropoulos, Ioannis Pitas, Athina P. Petropulu
2003	J	`jnl`	Segmentation of ultrasonic images using Support Vector Machines. Pattern Recognit. Lett. Constantine Kotropoulos, Ioannis Pitas
2003	—	`conf`	Video shot segmentation using singular value decomposition. ICASSP (3) Zuzana Cernekova, Constantine Kotropoulos, Ioannis Pitas
2003	A	`conf`	Video shot segmentation using singular value decomposition. ICME Zuzana Cernekova, Constantine Kotropoulos, Ioannis Pitas
2002	C	`conf`	A SOM Variant Based on the Wilcoxon Test for Document Organization and Retrieval. ICANN Apostolos Georgakis, Constantine Kotropoulos, Ioannis Pitas
2002	J	`jnl`	A Support Vector Machine-Based Dynamic Network for Visual Speech Recognition Applications. EURASIP J. Adv. Signal Process. Mihaela Gordan, Constantine Kotropoulos, Ioannis Pitas
2002	—	`conf`	A Temporal Network of Support Vector Machine Classifiers for the Recognition of Visual Speech. SETN Mihaela Gordan, Constantine Kotropoulos, Ioannis Pitas
2002	—	`conf`	Application of support vector machines classifiers to visual speech recognition. ICIP (3) Mihaela Gordan, Constantine Kotropoulos, Apostolos Georgakis, Ioannis Pitas
2002	J	`jnl`	Face verification using elastic graph matching based on morphological signal decomposition. Signal Process. Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas
2002	—	`conf`	On the stability of support vector machines for face detection. ICIP (3) Ioan Buciu, Constantine Kotropoulos, Ioannis Pitas
2002	J	`jnl`	Sorting networks using L IEEE Trans. Signal Process. Constantine Kotropoulos, Michael Pappas, Ioannis Pitas
2002	—	`conf`	Visual speech recognition using support vector machines. DSP Mihaela Gordan, Constantine Kotropoulos, Ioannis Pitas
2001	—	`conf`	Combining support vector machines for accurate face detection. ICIP (1) Ioan Buciu, Constantine Kotropoulos, Ioannis Pitas
2001	—	`conf`	Document Organization and Retrieval using Self Organizing Maps and Statistical Language Modeling. PRIS Apostolos Georgakis, Constantine Kotropoulos, Alexandros Xafopoulos, Ioannis Pitas
2001	—	`conf`	Frontal face detection using support vector machines and back-propagation neural networks. ICIP (1) Nikoletta Bassiou, Constantine Kotropoulos, T. Kosmidis, Ioannis Pitas
2001	—	`conf`	Hierarchical Word Clustering for Relevance Judgments in Information Retrieval. PRIS Nikoletta Bassiou, Constantine Kotropoulos, Ioannis Pitas
2001	J	`jnl`	Using Support Vector Machines to Enhance the Performance of Elastic Graph Matching for Frontal Face Authentication. IEEE Trans. Pattern Anal. Mach. Intell. Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas
2000	B	`conf`	Comparison of Face Verification Results on the XM2VTS Database. ICPR Jiri Matas, Miroslav Hamouz, Kenneth Jonsson, Josef Kittler, Yongping Li, Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas, Teewoon Tan, Hong Yan, Fabrizio Smeraldi, N. Capdevielle, Wulfram Gerstner, Yousri Abdeljaoued, Josef Bigün, S. Ben-Yacoub, Eddy Mayoraz
2000	Misc	`conf`	Face authentication by using elastic graph matching and support vector machines. ICASSP Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas
2000	J	`jnl`	Frontal Face Authentication Using Discriminating Grids with Morphological Feature Vectors. IEEE Trans. Multim. Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas
2000	J	`jnl`	Frontal face authentication using morphological elastic graph matching. IEEE Trans. Image Process. Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas
2000	J	`jnl`	Morphological elastic graph matching applied to frontal face authentication under well-controlled and real conditions. Pattern Recognit. Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas
2000	—	`conf`	On the Theoretical properties of Lp mean comparators. EUSIPCO Constantine Kotropoulos, Ioannis Pitas
2000	B	`conf`	Using Support Vector Machines for Face Authentication Based on Elastic Graph Matching. ICIP Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas
1999	Misc	`conf`	Compensating for variable recording conditions in frontal face authentication algorithms. ICASSP Anastasios Tefas, Yann Menguy, Constantine Kotropoulos, Gaël Richard, Ioannis Pitas, Philip Lockwood
1999	—	`conf`	Morphological Elastic Graph Matching Applied to Frontal Face Authentication under Optimal and Real Conditions. ICMCS, Vol. 2 Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas
1999	—	`conf`	Multi Modal Verification for Teleservices and Security Applications (M2VTS). ICMCS, Vol. 2 Gaël Richard, Yann Menguy, I. Guis, N. Suaudeau, Jérôme Boudy, Philip Lockwood, C. Fernández, Fernando Fernández, Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas, R. Heimgartner, Peter Ryser, Charles Beumier, Patrick Verlinde, Steven Pigeon, George Matas, Josef Kittler, Josef Bigün, Yousri Abdeljaoued, Eric Meurville, Laurent Besacier, Michael Ansorge, Gilbert Maître, Juergen Luettin, S. Ben-Yacoub, Belén Ruíz, K. Aldama, J. Cortes
1998	B	`conf`	Face Verification based on Morphological Shape Decomposition. FG Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas
1998	Misc	`conf`	Face authentication using variants of elastic graph matching based on mathematical morphology that incorporate local discriminant coefficients. ICASSP Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas
1998	—	`conf`	Linear projection algorithms and morphological dynamic link architecture for frontal face verification. EUSIPCO Constantine Kotropoulos, Ioannis Pitas
1998	J	`jnl`	Robust and adaptive techniques in self-organizing neural networks. Int. J. Comput. Math. Constantine Kotropoulos, Nikos Nikolaidis, Adrian G. Bors, Ioannis Pitas
1998	A*	`conf`	Variants of Dynamic Link Architecture Based on Mathematical Morphology for Frontal Face Authentication. CVPR Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas
1997	—	`conf`	Face Authentication Based on Morphological Grid Matching. ICIP (1) Constantine Kotropoulos, Ioannis Pitas
1997	—	`conf`	Face Authentication Using Morphological Dynamic Link Architecture. AVBPA Constantine Kotropoulos, Ioannis Pitas, Stefan Fischer, Benoît Duc
1997	Misc	`conf`	Rule-based face detection in frontal views. ICASSP Constantine Kotropoulos, Ioannis Pitas
1996	J	`jnl`	Adaptive LMS L-filters for noise suppression in images. IEEE Trans. Image Process. Constantine Kotropoulos, Ioannis Pitas
1996	—	`conf`	Morphological signal adaptive median filter for noise removal. ICECS Sofia Tsekeridou, Constantine Kotropoulos, Ioannis Pitas
1996	—	`conf`	Multichannel adaptive L-filters in color image filtering. ICIP (1) Constantine Kotropoulos, Ioannis Pitas, Maria Gabrani
1996	J	`jnl`	Nonlinear adaptive filters for speckle suppression in ultrasonic images. Signal Process. Eleftherios Kofidis, Sergios Theodoridis, Constantine Kotropoulos, Ioannis Pitas
1996	J	`jnl`	Order statistics learning vector quantizer. IEEE Trans. Image Process. Ioannis Pitas, Constantine Kotropoulos, Nikos Nikolaidis, Ruikang Yang, Moncef Gabbouj
1994	C	`conf`	A Class of Order Statistics Learning Vector Quantizers. ISCAS Ioannis Pitas, Constantine Kotropoulos, Nikos Nikolaidis, Ruikang Yang, Moncef Gabbouj
1994	—	`conf`	Adaptive LMS L-filters for smoothing noisy images. ICPR (3) Constantine Kotropoulos, Ioannis Pitas
1994	—	`conf`	Cellular LMS L-filters for Noise Suppression in Still Images and Image Sequences. ICIP (1) Maria Gabrani, Constantine Kotropoulos, Ioannis Pitas
1994	J	`jnl`	Multichannel L filters based on marginal data ordering. IEEE Trans. Signal Process. Constantine Kotropoulos, Ioannis Pitas
1994	—	`conf`	Multichannel L-filter design based on marginal data ordering. ICASSP (3) Constantine Kotropoulos, Ioannis Pitas
1994	J	`jnl`	Nonlinear ultrasonic image processing based on signal-adaptive filters and self-organizing neural networks. IEEE Trans. Image Process. Constantine Kotropoulos, Xanthippos C. Magnisalis, Ioannis Pitas, Michael G. Strintzis
1993	C	`conf`	A Variant of Learning Vector Quantizer Based on Split-Merge Statistical Tests. CAIP Constantine Kotropoulos, Ioannis Pitas
1993	C	`conf`	A variant of learning vector quantizer based on the L ISCAS Constantine Kotropoulos, Ioannis Pitas, Xanthippos C. Magnisalis, Michael G. Strintzis
1993	—	`conf`	Voronoi tessellation and Delauney triangulation using Euclidean disk growing in Z ICASSP (5) Constantine Kotropoulos, Ioannis Pitas, A. Maglara
1992	J	`jnl`	A texture-based approach to the segmentation of seismic images. Pattern Recognit. Ioannis Pitas, Constantine Kotropoulos
1992	J	`jnl`	Constrained adaptive LMS L-filters. Signal Process. Constantine Kotropoulos, Ioannis Pitas
1991	Misc	`conf`	Constrained adaptive LMS L-filters. ICASSP Constantine Kotropoulos, Ioannis Pitas
1991	—	`conf`	Use of Fractal Dimension in Signal Adaptive Filters for Speckle Reduction in Ultrasound B-Mode Images. MIE Xanthippos C. Magnisalis, Constantine Kotropoulos, Ioannis Pitas, Michael G. Strintzis