Publications


181 entries « 1 of 4 »

2017

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

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

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

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, 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

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

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

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

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

Effects of Matrix Completion on the Classification of Undersampled Human Activity Data Streams In Proceedings

Proc. European. Signal Processing Conference EUSIPCO, IEEE, 2016.

Abstract | BibTeX | Tags: Classification, Data Imputation, Human Activity Recognition, Matrix Completion, Missing Values, Supervised Machine Learning

Stefanakis, Nikolaos ; Mouchtaris, Athanasios

Direction of Arrival Estimation in front of a Reflective Plane Using a Circular Microphone Array In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), IEEE, 2016.

Abstract | BibTeX | Tags: Circular Microphone Array, Direction of Arrival, DOA Estimation, Early Reflections, Matched Filter Beamformer, Minimum Variance Distortionless Response Beamformer (MVDR)

Stefanakis, Nikolaos ; Mouchtaris, Athanasios

Capturing and Reproduction of a Crowded Sound Scene Using a Circular Microphone Array In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), IEEE, 2016.

Abstract | BibTeX | Tags: Circular Microphone Array, Direction of Arrival, DOA Estimation, Microphone Arrays, Spatial Audio Reproduction

Alexandridis, Anastasios ; Mouchtaris, Athanasios

Improving Narrowband DOA Estimation of Sound Sources Using the Complex Watson Distribution In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2016.

Abstract | BibTeX | Tags: Complex Watson Distribution, DOA Estimation, Microphone Arrays

Alexandridis, Anastasios ; Papadakis, Stefanos ; Pavlidi, Despoina ; Mouchtaris, Athanasios

Development and Evaluation of a Digital MEMS Microphone Array for Spatial Audio In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), 2016.

Abstract | BibTeX | Tags: Digital Microphones, DOA Estimation, MEMS, Microphone Arrays, Spatial Audio

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

3D localization of multiple audio sources utilizing 2D DOA histograms In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), IEEE, 2016.

Abstract | BibTeX | Tags: 2D Histogram Post-Processing, 3D DOA, Direction of Arrival, DOA Estimation, Multiple Sources, MUSIC, Spherical Microphone arrays, Steered Response Power

Tzagkarakis, George ; Charle, Wouter ; Tsakalides, Panagiotis

Data Compression for Snapshot Mosaic Hyperspectral Image Sensors In Proceedings

Proc. 24th European Signal Processing Conference (EUSIPCO), 2016.

Abstract | BibTeX | Tags: Hyperspectral Data, Hyperspectral Imaging, Image Compression, Snapshot Mosaic Hyperspectral Sensor, Spatio-Spectral Decorrelation

Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Deep Feature Learning for Hyperspectral Image Classification and Land Cover Estimation In Proceedings

Living Planet Symposium, pp. 179, 2016.

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

Panousopoulou, Athanasia ; Tsakalides, Panagiotis

On Graph-based Feature Selection for Multi-hop Performance Characterization in Industrial Smart Water Networks In Proceedings

2016 International Workshop on Cyber-Physical Systems for Smart Water Networks, pp. 19-24, 2016.

Abstract | BibTeX | Tags: Feature Selection, Smart Water Networks, Water Treatment, Wireless Sensor Networks

Kartakis, Sokratis ; Milojevic Jevric, Marija ; Tzagkarakis, George ; McCann, Julie A

Energy-based Adaptive Compression in Water Network Control Systems In Proceedings

Proc. 2nd International Workshop on Cyber-Physical Systems for Smart Water Networks (CySWater), 2016.

Abstract | BibTeX | Tags: Compressed Sensing, Compressive Sensing, Cyber-Physical Systems, Internet of Things, IoT, Smart Water Network, Wireless Sensor and Actuator Networks, Wireless Sensor Networks

Fotiadou, Konstantina ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Spectral Resolution Enhancement of Hyperspectral Images via Sparse Representations In Proceedings

Proc. Computational Imaging, IS&T Int. Symposium on Electronic Imaging, pp. 1–1, 2016.

Abstract | BibTeX | Tags: Multispectral Imaging, Sparse Representations, Spectral Super-resolution

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

3D DOA ESTIMATION OF MULTIPLE SOUND SOURCES BASED ON SPATIALLY CONSTRAINED BEAMFORMING DRIVEN BY INTENSITY VECTORS In Proceedings

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 96–100, 2016.

Abstract | BibTeX | Tags: 3D, Beamforming, Direction of Arrival, Multiple Sources, Sound Intensity, Spherical Microphone Array Processing

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

Non-negative Matrix Completion for the Enhancement of Snapshot Mosaic Multispectral Imagery In Proceedings

Proc. Image Sensors and Imaging Systems, IS&T Int. Symposium on Electronic Imaging, pp. 1–1, 2016.

Abstract | BibTeX | Tags: Demosaicing, Matrix Completion, Multispectral Imaging

Karalas, Konstantinos ; Tsagkatakis, Grigorios ; Zervakis, Michael ; Tsakalides, Panagiotis

Land Classification Using Remotely Sensed Data: Going Multi-Label Journal Article

IEEE Transactions on Geoscience and Remote Sensing, 54 (6), pp. 1-16, 2016.

Abstract | BibTeX | Tags: Image Classification, Multispectral Imaging, Remote Sensing

2015

Morfi, Veronica ; Degottex, Gilles ; Mouchtaris, Athanasios

Speech Analysis and Synthesis with a Computationally Efficient Adaptive Harmonic Model Journal Article

Audio, Speech, and Language Processing, IEEE/ACM Transactions on, 23 (11), pp. 1950-1962, 2015, ISSN: 2329-9290.

Abstract | Links | BibTeX | Tags: Frequency Estimation, Harmonic Analysis, Speech Processing

Tzagkarakis, George ; Tsagkatakis, Grigorios ; Alonso, Daniel ; Celada, Eugenio ; Asensio, Cesar ; Panousopoulou, Athanasia ; Tsakalides, Panagiotis ; Beferull-Lozano, Baltasar

Signal and Data Processing Techniques for Industrial Cyber-Physical Systems In Collection

Rawat, Danda B; Rodrigues, Joel ; Stojmenovic, Ivan (Ed.): Cyber Physical Systems: From Theory to Practice, CRC Press, USA, 2015.

Abstract | BibTeX | Tags: Cyber-Physical Systems, Data Management Systems, Industrial Surveillance, Matrix Completion, Water Treatment, Wireless Sensor Networks

Achim, Alin Marian ; Basarab, Adrian ; Tzagkarakis, George ; Tsakalides, Panagiotis ; Kouame, Denis

Reconstruction of Ultrasound RF Echoes Modeled as Stable Random Variables Journal Article

Computational Imaging, IEEE Transactions on, 1 (2), pp. 86-95, 2015, ISSN: 2333-9403.

Abstract | Links | BibTeX | Tags: Alpha-stable Distribution, Compressed Sensing, Image Reconstruction, Ultrasonic Imaging

Karagiannaki, Katerina ; Chonianakis, Stauros ; Patelarou, Euridiki ; Panousopoulou, Athanasia ; Papadopouli, Maria

mMamee: A mHealth Platform for Monitoring and Assessing Maternal Environmental Exposure In Proceedings

Computer-Based Medical Systems (CBMS), 2015 IEEE 28th International Symposium on, pp. 163-168, 2015.

Abstract | BibTeX | Tags: Environmental Exposure, mHeatlh, Wireless Sensor Networks

Tzagkarakis, George ; Tsakalides, Panagiotis ; Starck, Jean-Luc

Compressive Video Sensing with Adaptive Measurement Allocation for Improving MPEGx Performance In Proceedings

Computer Vision Theory and Applications (VISAPP), International Conference on, 2015.

Abstract | BibTeX | Tags: Compressed Sensing, Compressive Video Sensing, Measurement Allocation, Remote Imaging

Tsagkatakis, Grigorios ; Woiselle, Arnaud ; Tzagkarakis, George ; Bousquet, Marc ; Starck, Jean-Luc ; Tsakalides, Panagiotis

Multireturn Compressed Gated Range Imaging Journal Article

Optical Engineering, special issue on Computational Approaches to Imaging LADAR, 54 (3), pp. 031106–031106, 2015.

Abstract | BibTeX | Tags: Coded Apertures, Compressed Sensing, Lidar, Remote Sensing

Griffin, Anthony ; Alexandridis, Anastasios ; Pavlidi, Despoina ; Mastorakis, Yannis ; Mouchtaris, Athanasios

Localizing Multiple Audio Sources in a Wireless Acoustic Sensor Network Journal Article

Signal Processing, Special issue on wireless acoustic sensor networks and ad-hoc microphone arrays, 107 , pp. 54–67, 2015.

Abstract | BibTeX | Tags: Acoustic Sensors, Acoustic Source Localization, Location Estimation, Microphone Arrays, Wireless Sensor Networks

Alexandridis, Anastasios ; Borboudakis, Giorgos ; Mouchtaris, Athanasios

Addressing the Data-Association Problem for Multiple Sound Souce Localization Using DOA Estimates In Proceedings

Proc. European Signal Processing Conference (EUSIPCO), pp. 1551–1555, 2015.

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

Alexandridis, Anastasios ; Mouchtaris, Athanasios

Multiple Sound Source Location Estimation and Counting in a Wireless Acoustic Sensor Network In Proceedings

Proc. Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), pp. 1–5, 2015.

Abstract | BibTeX | Tags: DOA Estimates, Localization, Microphone Arrays, Source Counting, Wireless Acoustic Sensor Networks

Karalas, Konstantinos ; Tsagkatakis, Grigorios ; Zervakis, Michalis; Tsakalides, Panagiotis

Deep Learning for Multi-label Land Cover Classification In Proceedings

Proc. 2015 SPIE Remote Sensing, International Society for Optics and Photonics 2015.

Abstract | BibTeX | Tags: Deep Learning, Feature Learning, Land Cover Classification, Remote Sensing, Sparse Autoencoders

Kartakis, Sokratis ; Tzagkarakis, George ; McCann, Julie

Adaptive Compressive Sensing in Smart Water Networks In Proceedings

Proc. 2nd International Electronic Conference on Sensors and Applications (ECSA), 2015.

Abstract | BibTeX | Tags: Compressed Sensing, Smart Water Network, Wireless Sensor and Actuator Networks

Nikitaki, Sofia ; Tsagkatakis, Grigorios ; Tsakalides, Panagiotis

Efficient Multi-channel Signal Strength Based Localization via Matrix Completion and Bayesian Sparse Learning Journal Article

Mobile Computing, IEEE Transactions on, 14 (11), pp. 2244-2256, 2015.

Abstract | Links | BibTeX | Tags: Fingerprinting, Indoor Localization, Matrix Completion, Sparse Bayesian Learning

181 entries « 1 of 4 »