Publications


243 entries « 1 of 5 »

2022

Giannopoulos, Michalis ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

4D U-Nets for Multi-Temporal Remote Sensing Data Classification Journal Article

Remote Sensing, 14 (3), pp. 634, 2022.

Abstract | BibTeX | Tags: Higher-Order Convolutional Neural Networks, Multi-Temporal Data Classification, Remote Sensing, U-Nets

2021

Doutsi, Effrosyni ; Antonini, Marc ; Tsakalides, Panagiotis

Neuronal Communication Process Opens New Directions in Image and Video Compression Systems In Proceedings

Proc. European Research Consortium for Informatics and Mathematics, Special Theme: Brain-inspired Computing (ERCIM News 125), pp. 27–28, 2021.

Abstract | BibTeX | Tags: Compression

Kalatzantonakis-Jullien, George-Marios ; Stefanakis, Nikolaos ; Giannakakis, Giorgos

Investigation and ordinal modelling of vocal features for stress detection in speech In Proceedings

Proc. 9th International Conference on Affective Computing and Intelligent Interaction (ACII), pp. 1–8, IEEE, 2021.

Abstract | BibTeX | Tags: Affective Computing, Biosignals, Emotion Recognition, Feature Selection, Hyperparameter Optimization, Mel Cepstral Coefficients, mRMR, Pairwise Transformation, Speech, Stress, Voice

Zervou, Michaela Areti ; Doutsi, Effrosyni ; Tsakalides, Panagiotis

Visibility Graph Network of Multidimensional Time Series Data for Protein Structure Classification In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), pp. 1216–1220, 2021.

Abstract | Links | BibTeX | Tags: Horizontal Visibility Graphs, Multidimensional Time Series, Nonlinear Time Series Analysis, Secondary Structure Classification, Visibility Graphs

Karmiris, Ilias ; Astaras, Christos ; Ioannou, Konstantinos ; Vasiliadis, Ioakim ; Youlatos, Dionisios ; Stefanakis, Nikolaos ; Chatziefthimiou, Aspassia D; Kominos, Theodoros ; Galanaki, Antonia

Estimating Livestock Grazing Activity in Remote Areas Using Passive Acoustic Monitoring Journal Article

Information, 12 (8), pp. 290, 2021.

Abstract | BibTeX | Tags: Acoustic Sensors, Detection Algorithm, Grazing Season, Grazing Timing, Passive Acoustic Monitoring

Tsagkatakis, Grigorios ; Moghaddam, Mahta ; Tsakalides, Panagiotis

Deep multi-modal satellite and in-situ observation fusion for Soil Moisture retrieval In Proceedings

Proc. IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2021), pp. 6339–6342, IEEE 2021.

Abstract | BibTeX | Tags: Deep Learning, Remote Sensing, Soil Moisture

Zervou, Michaela Areti ; Doutsi, Effrosyni ; Pavlidis, Pavlos ; Tsakalides, Panagiotis

Structural Classification Of Proteins Based On The Computationally Efficient Recurrence Quantification Analysis And Horizontal Visibility Graphs Journal Article

Bioinformatics, 37 (13), pp. 1796–1804, 2021, ISSN: 1367-4803.

Abstract | Links | BibTeX | Tags: Horizontal Visibility Graphs, Recurrence Quantification Analysis

Doutsi, Effrosyni ; Fillatre, Lionel ; Antonini, Marc ; Tsakalides, Panagiotis

Dynamic Image Quantization Using Leaky Integrate-and-Fire Neurons Journal Article

IEEE Transactions on Image Processing, 30 , pp. 4305–4315, 2021.

Abstract | Links | BibTeX | Tags: Leaky Integrate-and-Fire (LIF), Non-Uniform Quantization, Rate Coding, Spikes, Time Coding, Uniform Quantization

Aidini, Anastasia ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Tensor Decomposition Learning for Compression of Multidimensional Signals Journal Article

IEEE Journal of Selected Topics in Signal Processing, 15 (3), pp. 476–490, 2021.

Abstract | BibTeX | Tags: Alternating Direction Method of Multipliers, Compression, Learning, Multidimensional Signals, Tucker Decomposition

Adami, Ilia ; Foukarakis, Michalis ; Ntoa, Stavroula ; Partarakis, Nikolaos ; Stefanakis, Nikolaos ; Koutras, George ; Kutsuras, Themistoklis ; Ioannidi, Danai ; Zabulis, Xenophon ; Stephanidis, Constantine

Monitoring Health Parameters of Elders to Support Independent Living and Improve Their Quality of Life Journal Article

Sensors, 21 (2), pp. 517, 2021.

Abstract | BibTeX | Tags: Cough Detection, eHealth, Elderly, Human-Centred Design, Independent Living, mHealth, Monitoring of Vital Signs, Quality of Life, Sensors, Virtual Assistant

2020

Geiller, Tristan ; Vancura, Bert ; Terada, Satoshi ; Troullinou, Eirini ; Chavlis, Spyridon ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis ; Ocsai, Katalin ; Poirazi, Panayiota ; Rozsa, Balazs J; Losonczy, Attila

Large-Scale 3D Two-Photon Imaging of Molecularly Identified CA1 Interneuron Dynamics in Behaving Mice Journal Article

Neuron, 108 (5), pp. 968–983, 2020.

Abstract | BibTeX | Tags: Axo-Axonic, Calcium, CCK, Context, Hippocampus, imaging, Interneuron, Remapping, Reward, Sharp-Wave Ripple

Vernardos, Georgios ; Tsagkatakis, Grigorios ; Pantazis, Yannis

Quantifying the structure of strong gravitational lens potentials with uncertainty-aware deep neural networks Journal Article

Monthly Notices of the Royal Astronomical Society, 499 (4), pp. 5641–5652, 2020.

Abstract | BibTeX | Tags: Astrophysics, Deep Learning

Pentari, Anastasia ; Tzagkarakis, George ; Marias, Kostas ; Tsakalides, Panagiotis

A Study on the Effect of Distinct Adjacency Matrices for Graph Signal Denoising In Proceedings

Proc. IEEE 20th International Conference on Bioinformatics and Bioengineering (BIBE), pp. 523–529, 2020.

Abstract | BibTeX | Tags: EEG, Fractional Lower Order Moments, Functional Connectivity, Graph Signal Filtering, Topological Connectivity, Visibility Graph

Troullinou, Eirini ; Tsagkatakis, Grigorios ; Chavlis, Spyridon ; Turi, Gergely F; Li, Wenke ; Losonczy, Attila ; Tsakalides, Panagiotis ; Poirazi, Panayiota

Artificial Neural Networks in Action for an Automated Cell-Type Classification of Biological Neural Networks Journal Article

IEEE Transactions on Emerging Topics in Computational Intelligence, 2020.

Abstract | BibTeX | Tags: Artificial Neural Networks, Calcium Imaging, Neuronal Cell-Type Classification

Tsagkatakis, Grigorios ; Moghaddam, Mahta ; Tsakalides, Panagiotis

Multi-Temporal Convolutional Neural Networks for Satellite-Derived Soil Moisture Observation Enhancement In Proceedings

Proc. IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2020), pp. 4602–4605, IEEE 2020.

Abstract | BibTeX | Tags: Deep Learning, Remote Sensing, Soil Moisture

Simou, Nikonas ; Stefanakis, Nikolaos ; Zervas, Panagiotis

A Universal System for Cough Detection in Domestic Acoustic Environments In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2020.

Abstract | BibTeX | Tags: Cough Detection, Deep Neural Networks, Domestic Acoustic Environments

Pentari, Anastasia ; Tzagkarakis, George ; Marias, Kostas ; Tsakalides, Panagiotis

Graph-based Denoising of EEG Signals in Impulsive Environments In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), pp. 1095–1099, 2020.

Abstract | BibTeX | Tags: Alpha-Stable Models, EEG Signals, Fractional Lower Order Moments, Graph Signal Denoising, Graph Signal Processing, Impulsive Noise

Zervou, Michaela Areti ; Doutsi, Effrosyni ; Pavlidis, Pavlos ; Tsakalides, Panagiotis

Efficient Dynamic Analysis of Low-similarity Proteins for Structural Class Prediction In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2020.

Abstract | BibTeX | Tags: Chaos Game Representation, Multidimensional Recurrence Quantification Analysis, Nonlinear Time Series Analysis, Protein Structure Prediction

Bountrogiannis, Konstantinos ; Tzagkarakis, George ; Tsakalides, Panagiotis

Anomaly Detection for Symbolic Time Series Representations of Reduced Dimensionality In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2020.

BibTeX | Tags: Anomaly Detection

Bountrogiannis, Konstantinos ; Tzagkarakis, George ; Tsakalides, Panagiotis

Data-Driven Kernel-Based Probabilistic SAX for Time Series Dimensionality Reduction In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2020.

BibTeX | Tags: Dimensionality Reduction, Time series

Stivaktakis, Radamanthys ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Semantic Predictive Coding with Arbitrated Generative Adversarial Networks Journal Article

MDPI Machine Learning and Knowledge Extraction (MAKE), 2 (3), pp. 307-326, 2020.

Abstract | Links | BibTeX | Tags: Deep Learning, Generative Adversarial Networks, Next-Frame Prediction, Predictive Coding, Semantic Predictive Coding

Aspri, Maria ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Distributed training and inference of deep learning models for multi-modal land cover classification Journal Article

Remote Sensing, 12 (17), pp. 2670, 2020.

Abstract | BibTeX | Tags: Deep Learning, Land Cover, Remote Sensing

Tzagkarakis, George ; Charalampidis, Pavlos ; Roumpakis, Stylianos ; Makrogiannakis, Antonis ; Tsakalides, Panagiotis

Quantifying the Computational Efficiency of Compressive Sensing in Smart Water Network Infrastructures Journal Article

MDPI Sensors, 2020.

BibTeX | Tags: Compressed Sensing, Wireless Sensor Networks

Simou, Nikonas ; Mastorakis, Yannis ; Stefanakis, Nikolaos

Towards Blind Quality Assessment of Concert Audio Recordings Using Deep Neural Networks In Proceedings

ICASSP 2020-2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 3477–3481, IEEE 2020, ISSN: 2379-190X.

Abstract | Links | BibTeX | Tags: Deep Neural Networks, Quality Assessment, User Generated Content

Aidini, Anastasia ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Quantized Tensor Robust Principal Component Analysis In Proceedings

ICASSP 2020-2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE 2020.

Abstract | BibTeX | Tags: Image Time-Series, Missing Values, Quantization, Robust PCA, Tensors

Giannopoulos, Michalis ; Aidini, Anastasia ; Pentari, Anastasia ; Fotiadou, Konstantina ; Tsakalides, Panagiotis

Classification of Compressed Remote Sensing Multispectral Images via Convolutional Neural Networks Journal Article

Journal of Imaging, 6 (4), pp. 24, 2020.

Abstract | BibTeX | Tags: Compression, Convolutional Neural Networks, Deep Learning, Multispectral Image Classification, Nuclear Norm, Quantization, Residual Learning, Tensor Unfoldings

Aidini, Anastasia ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Tensor Dictionary Learning with Representation Quantization for Remote Sensing Observation Compression In Proceedings

Proc. Data Compression Conference (DCC), 2020.

Abstract | BibTeX | Tags: Alternating Direction Method of Multipliers, Compression, CP Decomposition, Remote Sensing Observations, Tensor Dictionary Learning

Doutsi, Effrosyni ; Tsakalides, Panagiotis

Image Compression based on Neuroscience Models: Rate-Distortion Performance of the Neural Code In Proceedings

Data Compression Conference (DCC 2020), 2020.

BibTeX | Tags: Image Compression

Tsagkatakis, Grigorios ; Nikolidakis, S; Petra, E; Kapantagakis, A; Grigorakis, K; Katselis, G; Vlahos, N; Tsakalides, Panagiotis

Fish Freshness Estimation though analysis of Multispectral Images with Convolutional Neural Networks Journal Article

Electronic Imaging, 2020 (12), pp. 171–1–171–5, 2020.

Abstract | BibTeX | Tags: Deep Learning, Food Quality

Troullinou, Eirini ; Tsagkatakis, Grigorios ; Palagina, Gana ; Papadopouli, Maria ; Smirnakis, Stelios Manolis ; Tsakalides, Panagiotis

Adversarial dictionary learning for a robust analysis and modelling of spontaneous neuronal activity Journal Article

Neurocomputing, 388 , pp. 188–201, 2020.

Abstract | BibTeX | Tags: Biological Neural Networks, Dictionary Learning, Supervised Machine Learning

2019

Pentari, Anastasia ; Tsagkatakis, Grigorios ; Marias, Kostas ; Manikis C., Georgios ; Kartalis, Nikolaos ; Papanikolaou, Nikolaos ; Tsakalides, Panagiotis

Sparse Representations on DW-MRI: A study on pancreas In Proceedings

The 19th annual IEEE International Conference on Bioinformatics and Bioengineering (BIBE), pp. 791–795, 2019.

Abstract | BibTeX | Tags: b-value, Dictionary Learning, DW-MRI, IVIM, Sparse Coding

Aidini, Anastasia ; Giannopoulos, Michalis ; Pentari, Anastasia ; Fotiadou, Konstantina ; Tsakalides, Panagiotis

Hyperspectral Image Compression and Super-Resolution Using Tensor Decomposition Learning In Proceedings

Proc. 53rd Asilomar Conference on Signals, Systems, and Computers, pp. 1369–1373, IEEE 2019.

Abstract | BibTeX | Tags: Alternating Direction Method of Multipliers, Compression, Multi-Spectral Image Classification, Super-Resolution, Tensor Unfoldings

Zervou, Michaela Areti ; Tzagkarakis, George ; Tsakalides, Panagiotis

Automated Screening of Dyslexia via Dynamical Recurrence Analysis of Wearable Sensor Data In Proceedings

The 19th annual IEEE International Conference on Bioinformatics and Bioengineering (BIBE), 2019.

Abstract | BibTeX | Tags: Dyslexia Screening, Multidimensional Recurrence Quantification Analysis, Non-Linear Data Analysis, Wearable Sensors

Perez-Lopez, Andres ; Stefanakis, Nikolaos

Analysis of Spherical Isotropic Noise Fields with an A-format Tetrahedral Microphone Journal Article

Journal of the Acoustical Society of America, 146 (4), 2019.

Abstract | BibTeX | Tags: Ambisonics, spatial coherence, Spherically Isotropic Sound Field, Tetrahedral Microphone

Tsagkatakis, Grigorios ; Aidini, Anastasia ; Fotiadou, Konstantina ; Giannopoulos, Michalis ; Pentari, Anastasia ; Tsakalides, Panagiotis

Survey of Deep-Learning Approaches for Remote Sensing Observation Enhancement Journal Article

Sensors, 19 (18), pp. 3929, 2019.

Abstract | Links | BibTeX | Tags: Convolutional Neural Networks, Deep Learning, Denoising, Earth Observations, Fusion, Generative Adversarial Networks, Pan-Sharpening, Satellite Imaging, Super-Resolution

Aidini, Anastasia ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Compression of High-Dimensional Multispectral Image Time Series Using Tensor Decomposition Learning In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2019.

Abstract | BibTeX | Tags: Compression, CP Decomposition, High-order Tensors, Learning, Multispectral Image Time Series

Doutsi, Effrosyni ; Tzagkarakis, George ; Tsakalides, Panagiotis

Neuro-Inspired Compression of RGB Images In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2019.

Abstract | BibTeX | Tags: Edge Detection, FR-IQA, Leaky Integrate-and-Fire Model, NR-IQA, Retina-inspired Filter, Spikes

Doutsi, Effrosyni ; Fillatre, Lionel ; Antonini, Marc

Efficiency of the bio-inspired Leaky Integrate-and-Fire neuron for signal coding In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2019.

Abstract | BibTeX | Tags: Entropy, Leaky Integrate-and-Fire (LIF), Neuro-inspired Quantization, Spikes, Uniform Scalar Quantizer

Aspri, Maria ; Tsagkatakis, Grigorios ; Panousopoulou, Athanasia ; Tsakalides, Panagiotis

On Realizing Distributed Deep Neural Networks: An Astrophysics Case Study In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2019.

Abstract | BibTeX | Tags: Convolutional Neural Networks, Distributed Deep Learning, Spectroscopic Redshift Estimation

Zervou, Michaela Areti ; Tzagkarakis, George ; Panousopoulou, Athanasia ; Tsakalides, Panagiotis

A Self-Tuned Architecture for Human Activity Recognition Based on a Dynamical Recurrence Analysis of Wearable Sensor Data In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2019.

Abstract | BibTeX | Tags: Human Activity Recognition, motif discovery, nonlinear data analysis, Recurrence Quantification Analysis, Wearable Sensors

Roumpakis, Stylianos ; Tzagkarakis, George ; Tsakalides, Panagiotis

Real-Time Prototyping of Matlab-Java Code Integration for Water Sensor Networks Applications In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2019.

Abstract | BibTeX | Tags: Client-Server Model, Matlab-Java Code Integration, Real-Time Prototyping, Water Sensor Networks

Tzagkarakis, Christos ; Stefanakis, Nikolaos ; Tzagkarakis, George

Impact Sounds Classification for Interactive Applications via Discriminative Dictionary Learning In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2019.

Abstract | BibTeX | Tags: Discriminative Dictionary Sparse Coding, Impact Sound Classification, Real-time Processing, Sparse Representation Classification

Stivaktakis, Radamanthys ; Tsagkatakis, Grigorios ; Moraes, Bruno ; Abdalla, Filipe ; Starck, Jean-Luc ; Tsakalides, Panagiotis

Convolutional Neural Networks for Spectroscopic Redshift Estimation on Euclid Data Journal Article

IEEE Transactions on Big Data, 6 (3), pp. 460 - 476, 2019.

Abstract | Links | BibTeX | Tags: Astronomy, Astrophysics, Convolutional Neural Networks, Cosmology, Deep Learning, Euclid, Spectroscopic Redshift Estimation

Fotiadou, Konstantina ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Snapshot High Dynamic Range Imaging via Sparse Representations and Feature Learning Journal Article

IEEE Transactions on Multimedia, 22 (3), pp. 688-703, 2019.

BibTeX | Tags: Deep Learning, Sparse Representations

Tsagkatakis, Grigorios ; Bloemen, Maarten ; Geelen, Bert ; Jayapala, Murali ; Tsakalides, Panagiotis

Graph and Rank Regularized Matrix Recovery for Snapshot Spectral Image Demosaicing Journal Article

IEEE Transactions on Computational Imaging, 5 (2), pp. 301–316, 2019.

Abstract | Links | BibTeX | Tags: Demosaicing, Low-Rank and Graph Regularized Estimation, Snapshot Spectral Imaging

Fotiadou, Konstantina ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Alternating Direction Method of Multipliers for Semi-blind Astronomical Image Deconvolution In Proceedings

ICASSP 2019-2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 2157–2161, IEEE 2019.

Abstract | Links | BibTeX | Tags: Astronomy, Deconvolution, Sparse Representations

Pitsis, George ; Tsagkatakis, Grigorios ; Kozanitis, Christos ; Kalomoiris, Ioannis ; Ioannou, Aggelos ; Dollas, Apostolos ; Katevenis, Manolis GH ; Tsakalides, Panagiotis

Efficient Convolutional Neural Network Weight Compression for Space Data Classification on Multi-fpga Platforms In Proceedings

ICASSP 2019-2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 3917–3921, IEEE 2019.

Abstract | Links | BibTeX | Tags: Astronomy, Convolutional Neural Networks, Deep Learning, fpga

Vernardos, Georgios ; Tsagkatakis, Grigorios

Quasar Microlensing Light-Curve Analysis using Deep Machine Learning Journal Article

Monthly Notices of the Royal Astronomical Society, 486 (2), pp. 1944–1952, 2019, ISSN: 0035-8711.

Abstract | Links | BibTeX | Tags: Astronomy, Convolutional Neural Networks, Deep Learning, machine learning

Stefanakis, Nikolaos

Efficient Implementation of Superdirective Beamforming in a Half-Space Environment Journal Article

Journal of Acoustical Society of America, 145 (3), pp. 1293-1302, 2019.

Abstract | BibTeX | Tags: half-space environment, spatial coherence, Superdirective beamforming

Stefanakis, Nikolaos ; Mastorakis, Yannis ; Alexandridis, Anastasios ; Mouchtaris, Athanasios

Automating Mixing of User-Generated Audio Recordings from the Same Event Journal Article

Journal of Audio Engineering Society, 67 (4), 2019.

Abstract | BibTeX | Tags: automatic mixing, normalization, user-generated content, user-generated recordings

243 entries « 1 of 5 »