Publications


207 entries « 1 of 5 »

2019

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

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, 2019.

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

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

Stivaktakis, Radamanthys ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Deep Learning for Multilabel Land Cover Scene Categorization Using Data Augmentation Journal Article

IEEE Geoscience and Remote Sensing Letters, 16 (7), pp. 1031 - 1035, 2019.

Abstract | Links | BibTeX | Tags: Data Augmentation, Deep Learning, Land Cover, Multi-label Classification, Remote Sensing

2018

Tzagkarakis, George ; Nolan, John ; Tsakalides, Panagiotis

Compressive Sensing of Temporally Correlated Sources Using Isotropic Multivariate Stable Laws In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2018.

Abstract | BibTeX | Tags: Compressed Sensing, Correlated Sources, Isotropic Multivariate Stable Laws, Sparse Bayesian Learning

Giannopoulos, Michalis ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

On the impact of Tensor Completion in the Classification of Undersampled Hyperspectral Imagery In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2018.

Abstract | BibTeX | Tags: Deep Learning, Hyperspectral Imaging, Tensor Completion

Stefanakis, Nikolaos ; Delikaris-Manias, Symeon ; Mouchtaris, Athanasios

Acoustic Beamforming in Front of a Reflective Plane In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2018.

Abstract | BibTeX | Tags: Acoustic Beamforming, Image Source, Microphone Arrays, Specific Acoustic Impedance

Alexandridis, Anastasios ; Griffin, Anthony ; Mouchtaris, Athanasios

Multiple Source Location Estimation on a Dataset of Real Recordings in a Wireless Acoustic Sensor Network In Proceedings

IEEE International Workshop on Multimedia Signal Processing (MMSP), 2018.

Abstract | BibTeX | Tags: Audio, Localization, Microphone Arrays, WASN, Wireless Acoustic Sensor Networks

Stefanakis, Nikolaos ; Mouchtaris, Athanasios

Normalization of Partly Overlapping Audio Recordings from the Same Event Based on Relative Signal Powers In Proceedings

International Conference on Acoustic, Speech and Signal Processing (ICASSP), 2018 2018.

BibTeX | Tags: Audio Normalization

Fotiadou, Konstantina ; Tsagkatakis, Grigorios ; Moghaddam, Mahta ; Tsakalides, Panagiotis

Recovery of Soil Moisture Active Passive (SMAP) Instrument's Active Measurements via Coupled Dictionary Learning In Proceedings

IST International Symposium on Electronic Imaging, Image Processing: Algorithms and Systems, Burlingame, CA, Jan. 28 - Feb. 2, 2018 2018.

Abstract | Links | BibTeX | Tags: SMAP, Soil Moisture, Sparse Representation

Tsagkatakis, Grigorios ; Jaber, Mustafa ; Tsakalides, Panagiotis

Convolutional Neural Networks for the Analysis of Broadcasted Tennis Games In Proceedings

IST International Symposium on Electronic Imaging, Image Processing: Algorithms and Systems, Burlingame, CA, Jan. 28 - Feb. 2, 2018 2018.

Abstract | Links | BibTeX | Tags: Classification, Convolutional Neural Network, Deep Learning, Video

Aidini, Anastasia ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

1-Bit Tensor Completion (best paper award) In Proceedings

IST International Symposium on Electronic Imaging, Image Processing: Algorithms and Systems, Burlingame, CA, Jan. 28 - Feb. 2, 2018 2018.

Abstract | BibTeX | Tags: 1-bit Matrix Completion, Higher-order Tensor, Low-rank Tensor Completion, Quantization

Tsakalides Panagiotis, ; Panousopoulou Athanasia, ; Tsagkatakis Grigorios, ; Montestruque, Luis (Ed.)

Smart Water Grids: A Cyber-Physical Systems Approach Book

CRC Press, 2018, ISBN: 9781138197930.

Abstract | BibTeX | Tags: Cyber-Physical Systems, Matrix Completion, Smart Water Management, Wireless Sensor Networks

2017

Alexandridis, Anastasios ; Mouchtaris, Athanasios

Multiple Sound Source Location Estimation in Wireless Acoustic Sensor Networks Using DOA Estimates: The Data-Association Problem Journal Article

IEEE/ACM Transactions on Audio, Speech, and Language Processing, 26 (2), pp. 342-356, 2017, ISSN: 2329-9290.

Abstract | Links | BibTeX | Tags: Data-Association, Direction of Arrival Estimation, Localization, Microphone Arrays, Wireless Acoustic Sensor Networks

Cobos, Maximo ; Antonacci, Fabio ; Alexandridis, Anastasios ; Mouchtaris, Athanasios ; Lee, Bowon

A Survey of Sound Source Localization Methods in Wireless Acoustic Sensor Networks Journal Article

Wireless Communications and Mobile Computing, 2017 , 2017.

Abstract | BibTeX | Tags: Direction of Arrival, DOA, Location Estimation, Wireless Acoustic Sensor Networks

Savvaki, Sofia ; Tsagkatakis, Grigorios ; Panousopoulou, Athanasia ; Tsakalides, Panagiotis

Matrix and Tensor Completion on a Human Activity Recognition Framework Journal Article

IEEE Journal of Biomedical and Health Informatics, PP (99), pp. 1-1, 2017, ISSN: 2168-2194.

Abstract | Links | BibTeX | Tags: Data Imputation, Human Activity Recognition, Matrix Completion, Supervised Learning, Tensor Completion

Stefanakis, Nikolaos ; Pavlidi, Despoina ; Mouchtaris, Athanasios

Perpendicular Cross-Spectra Fusion for Sound Source Localization with a Planar Microphone Array Journal Article

IEEE/ACM Transactions on Audio, Speech and Language Processing, 25 (9), pp. 1517-1531, 2017.

Abstract | BibTeX | Tags: Direction of Arrival Estimation, Sound Source Localization

Fotiadou, Konstantina ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Multi-Source Image Enhancement via Coupled Dictionary Learning In Proceedings

Proc. Signal Processing with Adaptive Sparse Structured Representations (SPARS), 2017.

BibTeX | Tags: Alternating Minimization Coupled Dictionary Learning, Coupled Dictionary Learning, Hyperspectral Image Enhancement, Sparse Representations, Spectral Enhancement

Stefanakis, Nikolaos ; Viskadouros, Menelaos ; Mouchtaris, Athanasios

A Subjective Evaluation on Mixtures of Crowdsourced Audio Recordings In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2017.

Abstract | BibTeX | Tags: Audio Enhancement, Collaborative Audio Enhancement, User Generated Content

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

Dictionary Learning for Spontaneous Neural Activity Modeling In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2017.

Abstract | BibTeX | Tags: Dictionary Learning, Neural Activity, Sparse Coding

Panousopoulou, Athanasia ; Farrens, Sammuel ; Mastorakis, Yannis ; Starck, Jean-Luck ; Tsakalides, Panagiotis

A Distributed Learning Architecture for Big Imaging Problems in Astrophysics In Proceedings

European Signal Processing Conderence (EUSIPCO), 2017.

Abstract | BibTeX | Tags: Big Data applications, Distributed Computing, machine learning

Fotiadou, Konstantina ; Tsagkatakis, Grigorios ; Moraes, Bruno ; Abdalla, Filipe ; Tsakalides, Panagiotis

Denoising Galaxy Spectra with Coupled Dictionary Learning In Proceedings

European Signal Processing Conference (EUSIPCO), 2017.

Abstract | BibTeX | Tags: Alternating Minimization Coupled Dictionary Learning, Coupled Dictionary Learning, Hyperspectral Image Enhancement, Sparse Representations, Spectral Enhancement

Giannopoulos, Michalis ; Savvaki, Sofia ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Application of Tensor and Matrix Completion on Environmental Sensing Data In Proceedings

European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning (ESANN), pp. 233-238, 2017.

Abstract | BibTeX | Tags: Matrix Completion, Tensor Completion, Wireless Sensor Networks

Timotheatos, Stavros ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis ; Trahanias, Panagiotis

Feature Extraction and Learning for RSSI based Indoor Device Localization In Proceedings

European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning, 2017.

Abstract | BibTeX | Tags: Fingerprinting, Indoor Localization, machine learning

Stefanakis, Nikolaos ; Mouchtaris, Athanasios

Synchronization Ambiguity in Audio Content Generated by Users Attending the Same Public Event In Proceedings

Proc. ACM International Conference on Interactive Experiences for Television and Online Video (TVX), 2017.

Abstract | BibTeX | Tags: Audio Synchronization, User Generated Content

Delikaris-Manias, Symeon ; Pavlidi, Despoina ; Mouchtaris, Athanasios ; Pulkki, Ville

DOA estimation with histogram analysis of spatially constrained active intensity vectors In Proceedings

Proc. of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 526–530, 2017.

Abstract | BibTeX | Tags: Direction of Arrival, higher order active intensity vector, Microphone Arrays, multiple sound sources

Alexandridis, Anastasios ; Stefanakis, Nikolaos ; Mouchtaris, Athanasios

Towards Wireless Acoustic Sensor Networks for Location Estimation and Counting of Multiple Speakers in Real-Life Conditions In Proceedings

International Conference on Acoustics Speech and Signal Processing (ICASSP), 2017.

Abstract | BibTeX | Tags: Location Estimation, Real Recordings, Reflections, Source Counting, Wireless Acoustic Sensor Networks

Stefanakis, Nikolaos ; Chonianakis, Stavros ; Mouchtaris, Athanasios

Automatic Matching and Synchronization of User Generated Videos from a Large Scale Sport Event In Proceedings

Proc. International. Conference Acoustics Speech and Signal Processing (ICASSP), pp. 3016–3020, 2017.

Abstract | BibTeX | Tags: Audio Fingerprinting, Audio Matching, Audio Synchronization, Content Based Management, User Generated Content

Karagiannaki, Katerina ; Panousopoulou, Athanasia ; Tsakalides, Panagiotis

An Online Feature Selection Architecture For Human Activity Recognition In Proceedings

International Conference on Acoustics Speech and Signal Processing (ICASSP), 2017.

Abstract | BibTeX | Tags: Body Area Networks, Feature Selection, Human Activity Recognition, Online Implementations, Ubiquitous Computing, Wearable Computing

Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Computational Snapshot Spectral Imaging Journal Article

ERCIM News, (108), pp. 39–39, 2017.

BibTeX | Tags: Compressed Sensing, Image Reconstruction, imaging, Matrix Completion

Tsagkatakis, Grigorios ; Jaber, Mustafa ; Tsakalides, Panagiotis

Goal! Event Detection in Sports Video In Proceedings

International Symposium on Electronic Imaging, SPIE 2017.

Abstract | BibTeX | Tags: imaging, machine learning

Fotiadou, Konstantina ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Deep Convolutional Neural Networks for the Classification of Snapshot Mosaic Hyperspectral Imagery In Proceedings

International Symposium on Electronic Imaging, 2017.

Abstract | BibTeX | Tags: Classification, Deep Learning, Feature Learning

Stefanakis, Nikolaos ; Mouchtaris, Athanasios

Maximum Component Elimination in Mixing of User Generated Audio Recordings In Proceedings

IEEE 19th International Workshop on Multimedia Signal Processing (MMSP), 2017.

Abstract | BibTeX | Tags: Collaborative Audio Enhancement, User Generated Content

2016

Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

A Self-similar and sparse approach for spectral mosaic snapshot recovery In Proceedings

Imaging Systems and Techniques (IST), 2016 IEEE International Conference on, pp. 341–345, IEEE 2016.

Abstract | BibTeX | Tags: Hyperspectral Data, Hyperspectral Imaging, Snapshot Mosaic Hyperspectral Sensor

Menne, Tobias ; Heymann, Jahn ; Alexandridis, Anastasios ; Kazuki, Irie ; Albert, Zeyer ; Kitza, Markus ; Golik, Pavel ; Kulikov, Ilia ; Drude, Lukas ; Schluter, Ralf ; Ney, Hermann ; Haeb-Umbach, Reinhold ; Mouchtaris, Athanasios

The RWTH/UPB/FORTH System Combination for the 4th CHiME Challenge Evaluation In Proceedings

The 4th International Workshop on Speech Processing in Everyday Environments, pp. 39–44, 2016.

Abstract | BibTeX | Tags: ChiME, Deep Learning, Microphone Arrays, Speech Recognition

Karagiannaki, Katerina ; Panousopoulou, Athanasia ; Tsakalides, Panagiotis

A Benchmark Study on Feature Selection for Human Activity Recognition In Proceedings

ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp), ACM, 2016.

Abstract | Links | BibTeX | Tags: Body Area Networks, Feature Selection, Human Activity Recognition, Wearable Computing

Tsagkatakis, Grigorios ; Beferull-Lozano, Baltasar ; Tsakalides, Panagiotis

Singular spectrum-based matrix completion for time series recovery and prediction Journal Article

EURASIP Journal on Advances in Signal Processing, 2016 (1), pp. 1, 2016.

Abstract | BibTeX | Tags: Big Data, Matrix Completion, Time series

Panousopoulou, Athanasia ; Azkune, Mikel ; Tsakalides, Panagiotis

Feature Selection for Performance Characterization in Multi-hop Wireless Sensor Networks Journal Article

Ad Hoc Networks, 49 , pp. 70 - 89, 2016, ISSN: 1570-8705.

Abstract | BibTeX | Tags: Network Measurements and Analysis, Testbeds and Experimentation, Unsupervised Learning, Wireless Sensor Networks

207 entries « 1 of 5 »