| 2026 | ICDAR | Parameter-Efficient and Adaptive Fine-Tuning for Long-Tailed Ancient Characters Recognition. | Hao Wang, Aouaidjia Kamel, Constantine Kotropoulos, Chongsheng Zhang |
| 2024 | ACSSC | Speech Pathology Classification. | Spyridon Drakakis, Athina Gourou, Samouil Pratzioti, Constantine Kotropoulos |
| 2024 | ACSSC | Explainable Camera Model Identification Employing Log-Mel Spectrograms from Videos' Audio. | Christos Korgialas, Ioannis Tsingalis, Constantine Kotropoulos |
| 2024 | ICASSP | Interpretable Face Aging: Enhancing Conditional Adversarial Autoencoders with Lime Explanations. | Christos Korgialas, Evangelia Pantraki, Constantine Kotropoulos |
| 2024 | ICPRAM | Applying the Neural Bellman-Ford Model to the Single Source Shortest Path Problem. | Spyridon Drakakis, Constantine Kotropoulos |
| 2024 | ICPRAM | Mobile Phone Identification from Recorded Speech Signals Using Non-Speech Segments and Universal Background Model Adaptation. | Dimitrios Kritsiolis, Constantine Kotropoulos |
| 2024 | ICPRAM | On Spectrogram Analysis in a Multiple Classifier Fusion Framework for Power Grid Classification Using Electric Network Frequency. | Georgios Tzolopoulos, Christos Korgialas, Constantine Kotropoulos |
| 2023 | ICASSP | Electric Network Frequency Detection Using Least Absolute Deviations. | Christos Korgialas, Constantine Kotropoulos |
| 2023 | IJCNN | Dual Hypergraph Features for Path Inference in Wikipedia Links. | Anastasia-Sotiria Toufa, Constantine Kotropoulos, Ioannis Tsingalis |
| 2020 | ICPR | Digit Recognition Applied to Reconstructed Audio Signals Using Deep Learning. | Anastasia-Sotiria Toufa, Constantine Kotropoulos |
| 2019 | ICASSP | Leveraging Image-to-image Translation Generative Adversarial Networks for Face Aging. | Evangelia Pantraki, Constantine Kotropoulos, Andreas Lanitis |
| 2019 | ICIP | Block Randomized Optimization for Adaptive Hypergraph Learning. | George Karantaidis, Ioannis Sarridis, Constantine Kotropoulos |
| 2019 | ICIP | A Simple Algorithm for Non-Negative Sparse Principal Component Analysis. | Ioannis Tsingalis, Constantine Kotropoulos |
| 2016 | ICASSP | Adaptive algorithms for hypergraph learning. | Aikaterini Chasapi, Constantine Kotropoulos, Konstantinos Pliakos |
| 2015 | ICASSP | A maximum correntropy criterion for robust multidimensional scaling. | Fotios D. Mandanas, Constantine Kotropoulos |
| 2015 | ICASSP | Weight estimation in hypergraph learning. | Konstantinos Pliakos, Constantine Kotropoulos |
| 2015 | ISPA | Image tag recommendation based on novel tensor structures and their decompositions. | Panagiotis Barmpoutis, Constantine Kotropoulos, Konstantinos Pliakos |
| 2015 | ISPA | Greek folk music classification into two genres using lyrics and audio via canonical correlation analysis. | Nikoletta Bassiou, Constantine Kotropoulos, Anastasios Papazoglou-Chalikias |
| 2015 | ISPA | Video summarization based on shot boundary detection with penalized contrasts. | Paschalina Medentzidou, Constantine Kotropoulos |
| 2014 | ICASSP | Simultaneous image tagging and geo-location prediction within hypergraph ranking framework. | Konstantinos Pliakos, Constantine Kotropoulos |
| 2014 | ICIP | PLSA driven image annotation, classification, and tourism recommendation. | Konstantinos Pliakos, Constantine Kotropoulos |
| 2014 | MMSP | Social image search exploiting joint visual-textual information within a fuzzy hypergraph framework. | Konstantinos Pliakos, Constantine Kotropoulos |
| 2014 | Qshine | Greek folk music denoising under a symmetric α-stable noise assumption. | Nikoletta Bassiou, Constantine Kotropoulos, Ioannis Pitas |
| 2013 | ICASSP | Music recommendation using hypergraphs and group sparsity. | Antonis Theodoridis, Constantine Kotropoulos, Yannis Panagakis |
| 2012 | ICASSP | Automatic music tagging by low-rank representation. | Yannis Panagakis, Constantine Kotropoulos |
| 2011 | ICASSP | Automatic music tagging via PARAFAC2. | Yannis Panagakis, Constantine Kotropoulos |
| 2010 | ICASSP | Music genre classification via Topology Preserving Non-Negative Tensor Factorization and sparse representations. | Yannis Panagakis, Constantine Kotropoulos |
| 2010 | ICPR | Word Clustering Using PLSA Enhanced with Long Distance Bigrams. | Nikoletta Bassiou, Constantine Kotropoulos |
| 2010 | ICPR | Ensemble Discriminant Sparse Projections Applied to Music Genre Classification. | Constantine Kotropoulos, Gonzalo R. Arce, Yannis Panagakis |
| 2008 | ICPR | Gender classification in two Emotional Speech databases. | Margarita Kotti, Constantine Kotropoulos |
| 2007 | MMSP | Systematic comparison of BIC-based speaker segmentation systems. | Vassiliki Moschou, Margarita Kotti, Emmanouil Benetos, Constantine Kotropoulos |
| 2007 | MMSP | Using Adaptive Genetic Algorithms to Improve Speech Emotion Recognition. | Mohammad Hosein Sedaaghi, Constantine Kotropoulos, Dimitrios Ververidis |
| 2006 | CIARP | Feature Selection Based on Mutual Correlation. | Michal Haindl, Petr Somol, Dimitrios Ververidis, Constantine Kotropoulos |
| 2006 | ICANN | On the Variants of the Self-Organizing Map That Are Based on Order Statistics. | Vassiliki Moschou, Dimitrios Ververidis, Constantine Kotropoulos |
| 2006 | ICASSP | Musical Instrument Classification using Non-Negative Matrix Factorization Algorithms and Subset Feature Selection. | Emmanouil Benetos, Margarita Kotti, Constantine Kotropoulos |
| 2006 | ICASSP | Self Organizing Maps for Reducing the Number of Clusters by One on Simplex Subspaces. | Constantine Kotropoulos, Vassiliki Moschou |
| 2006 | ISCAS | Musical instrument classification using non-negative matrix factorization algorithms. | Emmanouil Benetos, Margarita Kotti, Constantine Kotropoulos |
| 2006 | ISCAS | Automatic speaker change detection with the Bayesian information criterion using MPEG-7 features and a fusion scheme. | Margarita Kotti, Emmanouil Benetos, Constantine Kotropoulos |
| 2005 | ICASSP | Modified Gauss-Seidel affine projection algorithm for acoustic echo cancellation. | Felix Albu, Constantine Kotropoulos |
| 2005 | ISCAS | Coordinate descent iterations in pseudo affine projection algorithm. | Felix Albu, Constantine Kotropoulos |
| 2005 | ISCAS | Video shot segmentation using fusion of SVD and mutual information features. | Zuzana Cernekova, Constantine Kotropoulos, Nikolaos Nikolaidis, Ioannis Pitas |
| 2005 | ISCAS | Emotional speech classification using Gaussian mixture models. | Dimitrios Ververidis, Constantine Kotropoulos |
| 2004 | ICASSP | Audio PCA in a novel multimedia scheme for scene change detection. | Marios Kyperountas, Zuzana Cernekova, Constantine Kotropoulos, Marios A. Gavrielides, Ioannis Pitas |
| 2004 | ICASSP | Automatic emotional speech classification. | Dimitrios Ververidis, Constantine Kotropoulos, Ioannis Pitas |
| 2004 | Interspeech | Automatic detection of vocal fold paralysis and edema. | Maria Marinaki, Constantine Kotropoulos, Ioannis Pitas, Nikolaos Maglaveras |
| 2003 | DEXA | CAML - A Universal Configuration Language for Dialogue Systems. | Gergely Kovsznai, Constantine Kotropoulos, Ioannis Pitas |
| 2003 | ICASSP | Video shot segmentation using singular value decomposition. | Zuzana Cernekova, Constantine Kotropoulos, Ioannis Pitas |
| 2003 | ICIP | ICA and Gabor representation for facial expression recognition. | Ioan Buciu, Constantine Kotropoulos, Ioannis Pitas |
| 2002 | ICANN | A SOM Variant Based on the Wilcoxon Test for Document Organization and Retrieval. | Apostolos Georgakis, Constantine Kotropoulos, Ioannis Pitas |
| 2002 | ICIP | On the stability of support vector machines for face detection. | Ioan Buciu, Constantine Kotropoulos, Ioannis Pitas |
| 2002 | ICIP | Application of support vector machines classifiers to visual speech recognition. | Mihaela Gordan, Constantine Kotropoulos, Apostolos Georgakis, Ioannis Pitas |
| 2001 | ICIP | Frontal face detection using support vector machines and back-propagation neural networks. | Nikoletta Bassiou, Constantine Kotropoulos, T. Kosmidis, Ioannis Pitas |
| 2001 | ICIP | Combining support vector machines for accurate face detection. | Ioan Buciu, Constantine Kotropoulos, Ioannis Pitas |
| 2000 | ICASSP | Face authentication by using elastic graph matching and support vector machines. | Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas |
| 2000 | ICIP | Using Support Vector Machines for Face Authentication Based on Elastic Graph Matching. | Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas |
| 2000 | ICPR | Comparison of Face Verification Results on the XM2VTS Database. | 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 Bign, S. Ben-Yacoub, Eddy Mayoraz |
| 1999 | ICASSP | Compensating for variable recording conditions in frontal face authentication algorithms. | Anastasios Tefas, Yann Menguy, Constantine Kotropoulos, Gal Richard, Ioannis Pitas, Philip Lockwood |
| 1998 | CVPR | Variants of Dynamic Link Architecture Based on Mathematical Morphology for Frontal Face Authentication. | Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas |
| 1998 | ICASSP | Face authentication using variants of elastic graph matching based on mathematical morphology that incorporate local discriminant coefficients. | Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas |
| 1997 | ICASSP | Rule-based face detection in frontal views. | Constantine Kotropoulos, Ioannis Pitas |
| 1997 | ICIP | Face Authentication Based on Morphological Grid Matching. | Constantine Kotropoulos, Ioannis Pitas |
| 1996 | ICIP | Multichannel adaptive L-filters in color image filtering. | Constantine Kotropoulos, Ioannis Pitas, Maria Gabrani |
| 1994 | ICASSP | Multichannel L-filter design based on marginal data ordering. | Constantine Kotropoulos, Ioannis Pitas |
| 1994 | ICIP | Cellular LMS L-filters for Noise Suppression in Still Images and Image Sequences. | Maria Gabrani, Constantine Kotropoulos, Ioannis Pitas |
| 1994 | ICPR | Adaptive LMS L-filters for smoothing noisy images. | Constantine Kotropoulos, Ioannis Pitas |
| 1994 | ISCAS | A Class of Order Statistics Learning Vector Quantizers. | Ioannis Pitas, Constantine Kotropoulos, Nikos Nikolaidis, Ruikang Yang, Moncef Gabbouj |
| 1993 | CAIP | A Variant of Learning Vector Quantizer Based on Split-Merge Statistical Tests. | Constantine Kotropoulos, Ioannis Pitas |
| 1993 | ICASSP | Voronoi tessellation and Delauney triangulation using Euclidean disk growing in Z | Constantine Kotropoulos, Ioannis Pitas, A. Maglara |
| 1993 | ISCAS | A variant of learning vector quantizer based on the L | Constantine Kotropoulos, Ioannis Pitas, Xanthippos C. Magnisalis, Michael G. Strintzis |
| 1991 | ICASSP | Constrained adaptive LMS L-filters. | Constantine Kotropoulos, Ioannis Pitas |