Curriculum Vitae

Anastasios Tefas

Associate Professor, School of Informatics

Personal Information

- 2310991932
tefas@csd.auth.gr
http://poseidon.csd.auth.gr/LAB_PEOPLE/TTefas.php
Scopus ID6701672908
Google Scholar ID4stOS3YAAAAJ
Researcher IDF-1899-2010
OrcID IDorcid.org/0000-0003-1288-3667
Γνωστικό Αντικείμενο:
Υπολογιστική Νοημοσύνη
Επιστημονική Ειδίκευση:
- Θετικές επιστήμες, Μαθηματικά και Πληροφορική
- Πληροφορική
- Επιστήμη της πληροφορικής

Education

Προπτυχιακές Σπουδές

1997	Πτυχίο Πληροφορικής / ΣΘΕ ΑΠΘ Greece

Διδακτορικό Δίπλωμα

2002	PhD Πληροφορικής / ΣΘΕ ΑΠΘ Greece Υπολογιστική Νοημοσύνη

Course Work

Courses of Winter semester of 2018–19 academic year

	TMĪMA PLĪROFORIKĪS
NCO-03-02	NUMERICAL ANALYSIS
NDM-07-05	NEURAL NETWORKS - DEEP LEARNING

	PROGRAMMA METAPTYCΗIAKŌN SPOUDŌN "TECΗNĪTĪ NOĪMOSYNĪ"
AI105	Computational Intelligence- Statistical Learning

	PROGRAMMA METAPTYCΗIAKŌN SPOUDŌN "PSĪFIAKA MESA - YPOLOGISTIKĪ NOĪMOSYNĪ"
DMCI102	Computational Intelligence- Statistical Learning

Courses of Spring semester of 2018–19 academic year

	TMĪMA PLĪROFORIKĪS
NDM-08-02	COMPUTATIONAL INTELLIGENCE

	PROGRAMMA METAPTYCΗIAKŌN SPOUDŌN "TECΗNĪTĪ NOĪMOSYNĪ"
AI204	Deep Learning and Mutlimedia Information Analysis

	PROGRAMMA METAPTYCΗIAKŌN SPOUDŌN "PSĪFIAKA MESA - YPOLOGISTIKĪ NOĪMOSYNĪ"
DMCI201	Deep Learning and Multimedia Information Analysis

Theses Supervised

Student Theses within AUTh

In progress

Tzelepi Maria. Τεχνικές Βαθιάς Μάθησης στα Ψηφιακά Μέσα
Tsantekidis Avraam. Τεχνικές Βαθιάς Μάθησης
Floropoulos Nikolaos. Βαθιά Μάθηση
Krestenitis Marios. Εξαγωγή χωροχρονικής πληροφορίας από χρονοσειρές εικόνων με χρήση μεθόδων βαθιάς μηχανικής μάθησης
Tzimas Alexandros. Βαθιά ενισχυτική Μάθηση για ρομποτική αντίληψη και πλοήγηση
Nousi Paraskevi. Τεχνικές Υπολογιστικής Νοημοσύνης στα Ψηφιακά Μέσα

2018–2019

Mochament Asterios. Ανάλυση οικονομικών δεδομένων με τεχνικές μηχανικής μάθησης
Papadimitriou Angeliki. Αποκωδικοποίηση οπτικώμ αναπαραστάσεων από εγκεφαλικά δεδομένα με χρήση μηχανικής μάθησης.
Pegios Paraskevas. Μεταφορά καλλιτεχνικού στύλ με χρήση συνελικτικών νευρωνικών δικτύων
Tsabazis Konstantinos. Βαθιά Νευρωνικά Δίκτυα για πρόβλεψη αποτελέσματος ποδοσφαιρικού αγώνα.
Passalis Nikolaos. Μέθοδοι Βαθιάς Μάθησης για Ανάλυση Δεδομένων

2017–2018

Karalias Nikolaos. Φασματική θεωρία γραφημάτων και βαθιά μάθηση σε γραφήματα
Papadopoulos Sotirios. Αποταυτοποίηση Εικόνων Προσώπου με Χρήση Βαθιών Αυτο-Κωδικοποιητών
Symeonidis Georgios. ΒΑΘΙΑ ΝΕΥΡΩΝΙΚΗ ΑΝΑΓΝΩΡΙΣΗ ΑΝΤΙΚΕΙΜΕΝΩΝ ΜΕ ΧΡΗΣΗ ΑΝΑΔΡΟΜΙΚΗΣ ΟΠΤΙΚΗΣ ΠΡΟΣΟΧΗΣ.
Saitas-Zarkias Konstantinos. ΒΑΘΙΑ ΕΝΙΣΧΥΤΙΚΗ ΜΑΘΗΣΗ ΣΕ ΧΡΗΜΑΤΟΟΙΚΟΝΟΜΙΚΑ ΔΕΔΟΜΕΝΑ.
Patsiouras Emmanouil. ΑΝΙΧΝΕΥΣΗ ΑΝΤΙΚΕΙΜΕΝΩΝ ΜΕ ΤΗΝ ΧΡΗΣΗ ΕΛΑΦΡΙΩΝ ΣΥΝΕΛΙΚΤΙΚΩΝ ΔΙΚΤΥΩΝ ΓΙΑ ΦΟΡΗΤΕΣ ΕΝΣΩΜΑΤΩΜΕΝΕΣ ΣΥΣΚΕΥΕΣ.
Floropoulos Nikolaos. Μέθοδοι διανυσματικής κβάντισης νευρωνικών δικτύων

2016–2017

Daskalakis Eleftherios. Ανάλυση και περιγραφή οπτικής πληροφορίας με χρήση συνελικτικών νευρωνικών δικτύων και νεύρωνες μνήμης
Tzelepi Maria. Βαθειά συνελικτικά νευρωνικά δίκτυα για ανάκτηση εικόνων με βάση το περιεχόμενο
Chriskos Panteleimon. Προστασία προσωπικών δεδομένων σε εικονοσειρές
Spathis Dimitris. Μαθαίνοντας την διάδραση με δεδομένα υψηλών διαστάσεων
Charitos Ioannis. ΒΑΘΙΑ ΥΠΟΛΕΙΜΑΤΙΚΑ ΝΕΥΡΩΝΙΚΑ ΔΙΚΤΥΑ ΓΙΑ ΑΝΙΧΝΕΥΣΗ ΠΡΟΣΩΠΟΥ.

2015–2016

Drakoulis Petros. Πολύτροπη μείωση διάστασης δεδομένων με χρήση πυρήνα
Tsantekidis Avraam. Αρχιτεκτονικές και Εκπαίδευση Βαθιών Νευρωνικών Δικτύων
Kondylidis Nikolaos. Ανάκτηση Εικόνας Βασισμένη σε Βαθιά Συνελικτικά Νευρωνικά Δίκτυα
Doropoulos Stavros. Ανίχνευση και ταξινόμηση λογότυπων σε μεγάλες οπτικές ροές βασισμένη σε συνελιτκικά νευρωνικά δίκτυα
Triantafyllidou Danai Maria. Ανίχνευση Προσώπου Με Βαθιά Συνελικτικά Νευρωνικά Δίκτυα

2014–2015

Galanopoulos Damianos. ΝΕΥΡΩΝΙΚΑ ΔΙΚΤΥΑ ΒΑΘΕΙΑΣ ΜΑΘΗΣΗΣ ΓΙΑ ΑΝΑΛΥΣΗ ΨΗΦΙΑΚΩΝ ΜΕΣΩΝ
Karavarsamis Sotirios. ΑΝΑΚΥΨΗ ΘΕΜΕΛΙΩΔΟΥΣ ΔΟΜΗΣ ΠΛΗΡΟΦΟΡΙΑΣ ΑΠΟ ΠΟΡΝΟΓΡΑΦΙΚΕΣ ΕΙΚΟΝΕΣ ΜΕ ΧΡΗΣΗ ΒΑΘΙΩΝ ΝΕΥΡΩΝΙΚΩΝ ΑΡΧΙΤΕΚΤΟΝΙΚΩΝ
Nousi Paraskevi. ΑΛΓΟΡΙΘΜΟΙ ΒΑΘΕΙΑΣ ΜΑΘΗΣΗΣ ΓΙΑ ΔΙΑΚΡΙΤΙΚΗ ΑΥΤΟΚΩΔΙΚΟΠΟΙΗΣΗ
Nestoridis Antonios. ΤΕΧΝΙΚΕΣ ΟΜΑΔΟΠΟΙΗΣΗΣ ΜΕ ΧΡΗΣΗ ΝΕΥΡΩΝΙΚΩΝ ΔΙΚΤΥΩΝ ΑΥΤΟΚΩΔΙΚΟΠΟΙΗΣΗΣ
Gogousis Vlasis. ΠΑΡΑΓΩΓΗ ΓΕΛΟΙΟΓΡΑΦΙΑΣ ΜΕ ΧΡΗΣΗ ΑΜΕΡΟΛΗΠΤΩΝ ΣΥΝΑΡΤΗΣΕΩΝ ΠΑΡΑΜΟΡΦΩΣΗΣ

2013–2014

Gavriilidis Vasileios. ΕΦΑΡΜΟΓΕΣ ΤΥΧΑΙΩΝ ΠΕΡΙΠΑΤΩΝ ΣΤΗΝ ΚΑΤΗΓΟΡΙΟΠΟΙΗΣΗ ΚΑΙ ΣΤΗΝ ΜΕΙΩΣΗ ΔΙΑΣΤΑΣΗΣ ΔΕΔΟΜΕΝΩΝ
Chrysouli Christina. ΓΕΝΕΤΙΚΟΙ ΑΛΓΟΡΙΘΜΟΙ ΣΤΗ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΓΡΑΦΗΜΑΤΩΝ ΟΜΟΙΟΤΗΤΑΣ ΓΙΑ ΠΡΟΒΛΗΜΑΤΑ ΟΜΑΔΟΠΟΙΗΣΗΣ ΔΕΔΟΜΕΝΩΝ

2012–2013

Ioannidou Anastasia. ΤΕΧΝΙΚΕΣ ΥΠΟΛΟΓΙΣΤΙΚΗΣ ΝΟΗΜΟΣΥΝΗΣ ΣΤΗΝ ΤΑΞΙΝΟΜΗΣΗ ΕΙΚΟΝΩΝ
Chatzivagias Christos. ΧΡΗΣΗ ΤΗΣ ΦΑΣΜΑΤΙΚΗΣ ΟΜΑΔΟΠΟΙΗΣΗΣ ΣΤΗΝ ΤΕΧΝΙΚΗ ΕΚΤΙΜΗΣΗΣ ΚΟΣΤΟΥΣ ΜΕ ΑΝΑΛΟΓΙΕΣ
Athanasiadis Christos. ΤΕΧΝΙΚΕΣ ΥΠΟΛΟΓΙΣΤΙΚΗΣ ΝΟΗΜΟΣΥΝΗΣ ΣΕ ΠΑΙΧΝΙΔΙΑ ΣΤΡΑΤΗΓΙΚΗΣ ΠΡΑΓΜΑΤΙΚΟΥ ΧΡΟΝΟΥ
Oikonomou Maria. ΜΕΙΩΣΗ ΔΙΑΣΤΑΣΗΣ ΔΕΔΟΜΕΝΩΝ ΠΟΛΛΑΠΛΩΝ ΕΤΙΚΕΤΩΝ ΜΕ ΧΡΗΣΗ ΥΠΟΚΛΑΣΕΩΝ
Bouzas Dimitrios. ΤΕΧΝΙΚΕΣ ΥΠΟΧΟΡΩΝ ΜΕ ΧΡΗΣΗ ΛΑΠΛΑΣΙΑΝΗΣ ΔΙΑΚΡΙΤΙΚΗΣ ΑΝΑΛΥΣΗΣ ΕΔΡΑΙΩΝ ΔΙΑΝΥΣΜΑΤΩΝ

2011–2012

Gavriilidis Vasileios. ΑΝΑΛΥΣΗ ΔΙΑΚΡΙΤΙΚΗΣ ΙΚΑΝΟΤΗΤΑΣ ΜΕΣΩ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗΣ ΚΡΙΤΗΡΙΩΝ ΤΕΤΡΑΓΩΝΙΚΗΣ ΑΜΟΙΒΑΙΑΣ ΠΛΗΡΟΦΟΡΙΑΣ
Arvanitidis Georgios. ΜΗΧΑΝΕΣ ΕΔΡΑΙΩΝ ΔΙΑΝΥΣΜΑΤΩΝ ΜΕ ΕΝΘΕΣΗ ΓΡΑΦΟΥ
Papachristou Konstantinos. ΜΑΘΗΣΗ ΥΠΟΧΩΡΩΝ ΜΕ ΠΕΡΙΟΡΙΣΜΟΥΣ ΣΥΜΜΕΤΡΙΑΣ

2010–2011

Athanasiadis Christos. ΤΕΧΝΙΚΕΣ ΝΟΗΜΟΣΥΝΗΣ ΠΛΗΘΥΣΜΩΝ ΚΑΙ ΠΟΛΥΚΡΙΤΗΡΙΑΚΗ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΣΕ ΠΟΛΥΜΕΣΙΚΕΣ ΕΦΑΡΜΟΓΕΣ
Orfanidis Georgios. Μηχανή εδραίων διανυσμάτων με χρήση υποκλάσεων.
Pitelis Nikolaos. ΔΙΑΚΡΙΤΙΚΗ ΑΝΑΛΥΣΗ ΕΔΡΑΙΩΝ ΔΙΑΝΥΣΜΑΤΩΝ ΕΛΑΧΙΣΤΗΣ ΔΙΑΚΥΜΑΝΣΗΣ ΚΛΑΣΗΣ
Maronidis Anastasios. Εμβύθιση Γράφων με Χρήση Υποκλάσεων στην Κατηγοριοποίηση Δεδομένων.

2009–2010

Arvanitopoulos-Darginis Nikolaos. ΤΕΧΝΙΚΕΣ ΣΤΑΤΙΣΤΙΚΗΣ ΜΑΘΗΣΗΣ ΥΠΟΚΛΑΣΕΩΝ ΜΕ ΧΡΗΣΗ ΝΟΗΜΟΣΥΝΗΣ ΠΛΗΘΥΣΜΩΝ
Maramī Ermionī. ΤΕΧΝΙΚΕΣ ΝΟΗΜΟΣΥΝΗΣ ΠΛΗΘΥΣΜΩΝ ΚΑΙ ΠΟΛΥΚΤΙΤΗΡΙΑΚΗ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΣΤΑ ΨΗΦΙΑΚΑ ΜΕΣΑ
Bouzas Dimitrios. ΤΕΧΝΙΚΕΣ ΣΤΑΤΙΣΤΙΚΗΣ ΜΑΘΗΣΗΣ ΥΠΟΚΛΑΣΕΩΝ ΜΕ ΧΡΗΣΗ ΝΟΗΜΟΣΥΝΗΣ ΠΛΗΘΥΣΜΩΝ
Papadopoulou Oyrania. Τεχνικές στατιστηκής μάθησης με χρήση υποκλάσεων στην κατηγοριοποίηση δεδομένων.
Petrakīs Stylianos. Τεχνικές Υπολογιστικής Νοημοσύνης σε παιχνίδια μάχης πρώτου προσώπου.

Unknown

Toufa Anastasia Sotiria. Πράκτορας Βαθιάς Ενισχυτικής Μάθησης σε Χρηματοοικονομικά Δεδομένα και Δημιουργία Τεχνητών Χρονοσειρών χρησιμοποιώντας Αντιπαλικά Δίκτυα (GAN).

Research Projects

Coordinator
2017–2019	Τεχνικές Βαθιάς Μάθησης στα Ψηφιακά Μέσα_ στα πλαίσια της 1ης προκήρυξης υποτροφιών ΕΛΙΔΕΚ για υποψήφιους διδάκτορες με κωδικό 2826
2017–2018	Υπολογιστική Νοημοσύνη
2017–2018	Παροχή συμβουλευτικής στην ανάλυση χρηματοιοικομικών δεδομένων με τεχνικές Υπολογιστικής Νοημοσύνης

Participant
2017–2019	Πλατφόρμα πολλαπλών μη επανδρωμένων αεροσκαφών για την παραγωγή οπτικοακουστικών μέσων
2016–2017	Παροχή συμβουλευτικής σε θέματα μηχανικής μάθησης, ανάλυσης και επεξεργασίας εικόνας
2013–2014	Συνέδριο:"14ο Διεθνές συνέδριο για την τεχνολογία εφαρμογών νευρωνικών δικτύων"
2012–2016	Ευφυής Πλατφόρμα Διαχείρισης για Πραγματικού Χρόνου Προηγμένες Διεργασίες Μέσων.
2012–2015	Ευφυής Πλατφόρμα Διαχείρισης για Πραγματικού Χρόνου Προηγμένες Διεργασίες Μέσων.
2011–2015	Αναζήτηση σε δεδομένα τρισδιάστατης τηλεόρασης
2009–2013	Ολοκληρωμένο ευφυές οικιακό περιβάλλον για παροχή υπηρεσιών υγείας, διατροφής και κινητικότητας σε ηλικιωμένους
2004–2007	Υποστήριξη κινητών μονάδων διάσωσης με χρήση πολλαπλών μεθόδων αλληλεπίδρασης ( SHARE)
2004–2007	Βιομετρία για ασφαλή ταυτοποίηση ανθρώπων (BIOSECURE)
2004–2008	Δίκτυο αριστείας για την κατανόηση με χρήση σημασιολογίας, υπολογισμών και εκπαίδευσης των πολυμέσων (MUSCLE)
2004–2008	Ευρωπαϊκό Δίκτυο Αριστείας στην Κρυπτολογία
2003–2005	Βιομετρία και ασφάλεια
2003–2019	Υπηρεσίες για τη σύνδεση προπτυχιακών και μεταπτυχιακών φοιτητών με την αγορά
2003–2008	Αναμόρφωση του υπάρχοντος Προγράμματος Προπτυχιακών Σπουδών του Τμήματος Πληροφορικής
2000–2002	CERTIMARK: πιστοποίηση για τεχνικές ψηφιακών υδατογραφημάτων
1998–2001	INSPECT Innovative Signal Processing Expoloiting Chaotic Dynamics
1998–1999	Επιμόρφωση και εξειδίκευση πτυχιούχων με τις μεθόδους της εκπαίδευσης από απόσταση (ΕΕΠΑ)
1997–1999	Δράσεις αναβάθμισης της οργάνωσης σπουδών (ΔΑΝΑΟΣ)
1997–	Παιδαγωγικός σχεδιασμός και κατασκευή εκπαιδευτικού πακέτου πληροφόρησης και κατάρτισης για παλιννοστούντες ομογενείς με ειδικές μορφωτικές και γλωσσικές ανάγκες
1995–1998	Πολύτροπη αναγνώριση προσώπων για προσφορά υπηρεσιών από απόσταση

Publications

2018

Journal Article

Mademlis Ioannis, Tefas Anastasios, Pitas Ioannis . (2018) . A salient dictionary learning framework for activity video summarization via key-frame extraction . Information Sciences . vol.432 p.319-331
Mygdalis V., Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2018) . Semi-supervised subclass support vector data description for image and video classification . Neurocomputing . Vol. 278 p.51-61
Tzelepi M., Tefas Anastasios . (2018) . Deep convolutional learning for Content Based Image Retrieval . Neurocomputing . vol.275 p.2467-2478
Tzelepi M., Tefas Anastasios . (2018) . Deep convolutional image retrieval: A general framework . Signal Processing: Image Communication . vol.63 p.30-43

2017

Journal Article

Chriskos P., Zoidi O., Tefas Anastasios, Pitas Ioannis . (2017) . De-identifying facial images using singular value decomposition and projections . Multimedia Tools and Applications . vol.76 no.3 p.3435-3468
Iosifidis A., Tefas Anastasios, Pitas Ioannis, Gabbouj M. . (2017) . Big Media Data Analysis . Signal Processing: Image Communication . vol.59 p.105-108
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2017) . Approximate kernel extreme learning machine for large scale data classification . Neurocomputing . vol.219 p.210-220
Iosifidis A., Mygdalis V., Tefas Anastasios, Pitas Ioannis . (2017) . One-Class Classification Based on Extreme Learning and Geometric Class Information . Neural Processing Letters . vol.45 no.2 p.577-592
Kapsouras I., Tefas Anastasios, Nikolaidis Nikolaos, Peeters G., Benaroya L., Pitas Ioannis . (2017) . Multimodal speaker clustering in full length movies . Multimedia Tools and Applications . vol.76 no.2 p.2223-2242
Nousi P., Tefas Anastasios . (2017) . Deep learning algorithms for discriminant autoencoding . Neurocomputing . vol.266 p.325-335
Passalis N., Tefas Anastasios . (2017) . Neural Bag-of-Features learning . Pattern Recognition . vol.64 p.277-294
Passalis N., Tefas Anastasios . (2017) . Learning Neural Bag-of-Features for Large-Scale Image Retrieval . IEEE Transactions on Systems, Man & Cybernetics. Systems . vol.47 no.10 p.2641-2652

Conference Proceedings Article

Mademlis I., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2017) . Compact video description and representation for automated summarization of human activities . Advances in Big Data :Proceedings of the 2nd INNS Conference on Big Data . 2nd INNS Conference on Big Data "Advances in Intelligent Systems and Computing" . Thessaloniki, Greece . Advances in Intelligent Systems and Computing vol.529 p.18-28
Mygdalis V., Iosifidis A, Tefas Anastasios, Pitas Ioannis . (2017) . Laplacian one class extreme learning machines for human action recognition . 2016 IEEE 18th International Workshop on Multimedia Signal Processing . Montreal, Canada
Mygdalis V., Tefas Anastasios, Pitas Ioannis . (2017) . Exploiting local and global geometric data relationships in Support Vector Data Description . Proceedings - International Conference on Pattern Recognition . ICPR 2016 : IAPR International Conference on Pattern Recognition . Cancun, Mexico . p.515-519
Nousi P., Tefas Anastasios . (2017) . Discriminatively trained autoencoders for fast and accurate face recognition . Engineering Applications of Neural Networks : 18th International Conference, EANN 2017 . 18th International Conference, EANN 2017 "Engineering Applications of Neural Networks" . Athens, Greece . vol.744 p.205-215
Passalis N., Tefas Anastasios . (2017) . Spatial bag of features learning for large scale face image retrieval . Advances in Big Data: Proceedings of the 2nd INNS Conference on Big Data . 2nd INNS Conference on Big Data . (Eds): Plamen Angelov, Yannis Manolopoulos, Lazaros Iliadis, Asim Roy and Marley Vellasco . Thessaloniki, Greece . vol.529 p.8-17
Passalis N., Tefas Anastasios . (2017) . Improving face pose estimation using long-term temporal averaging for stochastic optimization . Engineering Applications of Neural Networks 18th International Conference, EANN 2017 . 18th International Conference EANN: International Conference on Engineering Applications of Neural Networks . Athens, Greece . Communications in Computer and Information Science, vol.744 p.194-204
Passalis N., Tefas Anastasios . (2017) . Bag of Embedded Words learning for text retrieval . 2016 23rd International Conference on Pattern Recognition (ICPR) . 23rd International Conference on Pattern Recognition (ICPR) . Cancun, Mexico . p.2416-2421
Passalis N., Tsantekidis A., Tefas Anastasios, Kanniainen J., Gabbouj M., Iosifidis A. . (2017) . Time-series classification using neural bag-of-features . 2017 25th European Signal Processing Conference (EUSIPCO) . 25th European Signal Processing Conference, EUSIPCO 2017 . Kos, Greece . vol.2017 p.301-305
Passalis N., Tefas Anastasios . (2017) . Concept detection and face pose estimation using lightweight convolutional neural networks for steering drone video shooting . 2017 25th European Signal Processing Conference (EUSIPCO) . 25th European Signal Processing Conference, EUSIPCO 2017 . Kos, Greece . vol.2017 p.71-75
Passalis N., Tefas Anastasios . (2017) . Learning Bag-of-Features Pooling for Deep Convolutional Neural Networks . 2017 IEEE International Conference on Computer Vision (ICCV) . IEEE International Conference on Computer Vision . Venice, Italy . vol.2017 p.5766-5774
Triantafyllidou D., Tefas Anastasios . (2017) . Face detection based on deep convolutional neural networks exploiting incremental facial part learning . 2016 23rd International Conference on Pattern Recognition (ICPR) . 23rd International Conference on Pattern Recognition (ICPR) . Cancun, Mexico . p.3560-3565
Triantafyllidou D., Nousi P., Tefas Anastasios . (2017) . Lightweight two-stream convolutional face detection . 2017 25th European Signal Processing Conference (EUSIPCO) . 25th European Signal Processing Conference, EUSIPCO 2017 . Kos, Greece . vol.2017 p.1190-1194
Triantafyllidou Danai, Tefas Anastasios . (2017) . A fast deep convolutional neural network for face detection in big visual data . Advances in Big Data: Proceedings of the 2nd INNS Conference on Big Data . 2nd INNS Conference on Big Data . (Eds): Plamen Angelov, Yannis Manolopoulos, Lazaros Iliadis, Asim Roy and Marley Vellasco . Thessaloniki, Greece . vol.529 p.61-70
Tsantekidis A., Passalis N., Tefas Anastasios, Kanniainen J., Gabbouj M., Iosifidis A. . (2017) . Forecasting stock prices from the limit order book using convolutional neural networks . 2017 IEEE 19th Conference on Business Informatics (CBI) . IEEE 19th Conference on Business Informatics, CBI 2017 . Thessaloniki, Greece . vol.1 p.7-12
Tsantekidis Avraam, Passalis Nikolaos, Tefas Anastasios, Kanniainen Juho, Gabbouj Moncef, Iosifidis Alexandros . (2017) . Using deep learning to detect price change indications in financial markets . 2017 25th European Signal Processing Conference (EUSIPCO) . 25th European Signal Processing Conference, EUSIPCO 2017 . Kos, Greece . vol.2017 p.2511-2515
Tzelepi M., Tefas Anastasios . (2017) . Exploiting supervised learning for finetuning deep CNNs in content based image retrieval . 2016 23rd International Conference on Pattern Recognition (ICPR) . 23rd International Conference on Pattern Recognition (ICPR) . Cancun, Mexico . p.2918-2923
Tzelepi M., Tefas Anastasios . (2017) . Human crowd detection for drone flight safety using convolutional neural networks . 2017 25th European Signal Processing Conference (EUSIPCO) . 25th European Signal Processing Conference, EUSIPCO 2017 . Kos, Greece . vol.2017 p.743-747

2016

Journal Article

Blat J., Evans A., Kim H., Imre E., Polok L., Ila V., Nikolaidis Nikolaos, Zemčík P., Tefas Anastasios, Smrž P., Hilton A., et al. . (2016) . Big Data Analysis for Media Production . Proceedings of the IEEE . vol.104 no.11 p.2085-2113
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2016) . Graph embedded extreme learning machine . IEEE Transactions on Cybernetics . vol.46 no.1 p.311-324
Mademlis I., Iosifidis A., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2016) . Exploiting stereoscopic disparity for augmenting human activity recognition performance . Multimedia Tools and Applications . vol.75 no.19 p.11641-11660
Mademlis Ioannis, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2016) . Multimodal Stereoscopic Movie Summarization Conforming to Narrative Characteristics . IEEE Transactions on Image Processing . vol.25 no.12 p.5828-5840
Mygdalis V., Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2016) . Graph Embedded One-Class Classifiers for media data classification . Pattern Recognition . vol.60 p.585-595
Passalis N., Tefas Anastasios . (2016) . Entropy Optimized Feature-Based Bag-of-Words Representation for Information Retrieval . IEEE Transactions on Knowledge & Data Engineering . vol.28 no.7 p.1664-1677
Patrona F., Iosifidis A., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2016) . Visual Voice Activity Detection in the Wild . IEEE Transactions on Multimedia . vol.18 no.6 p.967-977

Conference Proceedings Article

Fotiadou E., Nikolaidis Nikolaos, Kapsouras I., Tefas Anastasios . (2016) . A bag of words approach for recognition of Greek folk dances . SETN '16 Proceedings of the 9th Hellenic Conference on Artificial Intelligence . 9th Hellenic Conference on Artificial Intelligence . Thessaloniki, Greece . no.21
Fotiadou E., Nikolaidis Nikolaos, Tefas Anastasios . (2016) . A comparative study of representations for folk dances recognition in video . 2016 24th European Signal Processing Conference (EUSIPCO) . 2016 24th European Signal Processing Conference (EUSIPCO) . Budapest, Hungary . vol.2016-November p.115-119
Gavriilidis V., Tefas Anastasios, Kotropoulos Konstantinos(Constantine), Nikolaidis Nikolaos . (2016) . Enhanced similarities for a music Recommender System . 2016 Digital Media Industry and Academic Forum, DMIAF 2016 - Proceedings . DMIAF 2016, Digital Media Industry and Academic Forum . Santorini, Greece . p.113-116
Iosifidis A., Tefas Anastasios, Pitas Ioannis, Gabbouj M. . (2016) . A review of approximate methods for kernel-based big media data analysis . 2016 24th European Signal Processing Conference (EUSIPCO) . 24th European Signal Processing Conference (EUSIPCO) . Budapest, Hungary . p.1113-1117
Kakaletsis E., Zoidi O., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2016) . Fast label propagation on facial images using a pruned similarity matrix . 2016 Digital Media Industry and Academic Forum, DMIAF 2016 - Proceedings . DMIAF 2016, Digital Media Industry and Academic Forum . Santorini, Greece . p.103-106
Mademlis Ilias, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2016) . Movie shot selection preserving narrative properties . 2016 IEEE 18th International Workshop on Multimedia Signal Processing . Montreal, Canada
Mygdalis V., Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2016) . Kernel subclass support vector description for face and human action recognition . 2016 First International Workshop on Sensing, Processing and Learning for Intelligent Machines (SPLINE) . 1st International Workshop on Sensing, Processing and Learning for Intelligent Machines (2016) . Aalborg, Denmark
Mygdalis V., Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2016) . One class classification applied in facial image analysis . 2016 IEEE International Conference on Image Processing (ICIP) . IEEE International Conference on Image Processing (ICIP, 2016) . Phoenix, AZ, USA . p.1644-1648
Passalis N., Tefas Anastasios . (2016) . Spectral clustering using optimized bag-of-features . SETN '16 Proceedings of the 9th Hellenic Conference on Artificial Intelligence . 9th Hellenic Conference on Artificial Intelligence . Thessaloniki, Greece . art.19
Theodoridis T., Tefas Anastasios, Pitas Ioannis . (2016) . Multi-view semantic temporal video segmentation . 2016 IEEE International Conference on Image Processing (ICIP) . International Conference on Image Processing (ICIP, 2016) . Phoenix, AZ, USA . p.3947-3951
Tsapanos N., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2016) . Efficient MapReduce Kernel k-Means for big data clustering . SETN '16 Proceedings of the 9th Hellenic Conference on Artificial Intelligence Article No. 28 . 9th Hellenic Conference on Artificial Intelligence (SETN '16) . Thessaloniki, Greece . no.28
Tzelepi M., Tefas Anastasios . (2016) . Relevance feedback in deep convolutional neural networks for content based image retrieval . SETN '16 Proceedings of the 9th Hellenic Conference on Artificial Intelligence . 9th Hellenic Conference on Artificial Intelligence . Thessaloniki, Greece . vol.18-20-May-2016

2015

Journal Article

Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2015) . Graph Embedded Extreme Learning Machine . IEEE Transactions on Cybernetics . vol. PP no. 99 pp. 1
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2015) . Class-specific Reference Discriminant Analysis with application in Human Behaviour Analysis . IEEE Transactions on Human Machine Systems
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2015) . On the Kernel Extreme Learning Machine Classifier . Pattern Recognition Letters . vol.54 p.11-17
Iosifidis A., Marami E., Tefas Anastasios, Pitas Ioannis, Lyroudia Kleoniki . (2015) . The MOBISERV-AIIA Eating and Drinking multi-view database for vision-based assisted living . Journal of Information Hiding and Multimedia Signal Processing . vol.6 no.2 p. 254-273
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2015) . Distance-based Human Action Recognition using optimized class representations . Neurocomputing . vol. 161 pp.47–55
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2015) . DropELM: Fast neural network regularization with Dropout and DropConnect . Neurocomputing . vol.162 p.57-66
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2015) . Class-Specific Reference Discriminant Analysis With Application in Human Behavior Analysis . IEEE Transactions on Human-Machine Systems . Vol. 45 no. 3 p.315-326
Orphanidis G., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2015) . Facial image clustering in stereoscopic videos using double spectral analysis . Signal Processing: Image Communication . vol. 33 pp. 86–105
Tsapanos Nikolaos, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2015) . A distributed framework for trimmed Kernel k-Means clustering . Pattern Recognition . Vol. 48 no. 8 p.2685-2698

Conference Proceedings Article

Iosifidis Alexandros , Tefas Anastasios, Pitas Ioannis . (2015) . Enhancing ELM-based facial image classification by exploiting multiple facial views . International Conference on Computational Science (ICCS 2015) . Reykjavík - Iceland
Tsapanos Nikolaos, Tefas Anastasios, Nikolaidis Nikolaos, Iosifidis A., Pitas Ioannis . (2015) . Fast Kernel Matrix Computation for Big Data Clustering . International Conference On Computational Science, ICCS 2015 — Procedia Computer Science . International Conference on Computational Science (ICCS 2015) . Reykjavík - Iceland . vol.51 p. 2445–2452

2014

Journal Article

Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2014) . Regularized Extreme Learning Machine for Multi-view Semi-supervised Action Recognition . Neurocomputing . vol.145 pp. 250-262
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2014) . Kernel Reference Discriminant Analysis . Pattern Recognition Letters . vol.49 no. 1 p. 85-91
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2014) . Discriminant Bag of Words based Representation for Human Action Recognition . Pattern Recognition Letters . vol.49 p.185-192
Nikitidis S., Tefas Anastasios, Pitas Ioannis . (2014) . Maximum Margin Projection Subspace Learning for Visual Data Analysis . IEEE Transactions on Image Processing . vol.23 no.10 p. 4413 - 4425
Nikitidis S., Tefas Anastasios, Pitas Ioannis . (2014) . Projected Gradients for Subclass Discriminant Nonnegative Subspace Learning . IEEE Transactions on Cybernetics . vol.44 no.12 p.2806 - 2819
Papachristou K., Tefas Anastasios, Pitas Ioannis . (2014) . Symmetric Subspace Learning for Image Analysis . IEEE Transactions on Image Processing . vol.23 no.12 p.5683-5697
Zoidi O., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Person identity label propagation in stereo videos . IEEE Transactions on Multimedia . vol.16, issue 5 p.1358-1368
Zoidi O., Nikolaidis Nikolaos, Tefas Anastasios, Pitas Ioannis . (2014) . Stereo Object Tracking with Fusion of Texture, Color and Disparity Information . Signal Processing: Image Communication . vol.29 Issue 5 p.573-589

Conference Proceedings Article

Alexandros Iosifidis, Tefas Anastasios, Pitas Ioannis . (2014) . Multi-view Regularized Extreme Learning Machine for Human Action Recognition . Artificial Intelligence: Methods and Applications 8th Hellenic Conference on AI, SETN 2014, Ioannina, Greece, May, 15-17, 2014, Proceedings . 8th Hellenic Conference on AI, SETN 2014 . Ioannina - Greece
Chriskos P., Zoidi O., Tefas Anastasios, Pitas Ioannis . (2014) . De-identifying facial images using singular value decomposition . 2014 37th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) . 2014 37th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) . Opatija, Croatia . IEEE . p.1240-1245
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2014) . Exploiting Local Class Information in Extreme Learning Machine . International Conference on Neural Computation Theory and Applications (NCTA 2014) . Rome - Italy
Iosifidis A., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Human action recognition in stereoscopic videos based on bag of features and disparity pyramids . Proceedings of the 22nd European Signal Processing Conference (EUSIPCO), 2014 . 22nd European Signal Processing Conference (EUSIPCO) . Lisbon - Portugal . p.1317 - 1321
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2014) . Minimum Variance Extreme Learning Machine for human action recognition . 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) . ICASSP 2014 - 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) . Florence, Italy . IEEE . p.5427-5431
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2014) . Human action recognition based on bag of features and multi-view neural networks . 2014 IEEE International Conference on Image Processing (ICIP) . 2014 IEEE International Conference on Image Processing (ICIP) . Paris, France . IEEE . p.1510-1514
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2014) . Semi-supervised Classification of Human Actions Based on Neural Networks . 2014 22nd International Conference on Pattern Recognition . 2014 22nd International Conference on Pattern Recognition (ICPR) . Stockholm, Sweden . IEEE . p.1336-1341
Ivasic-Kos M., Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2014) . Person de-identification in activity videos . 2014 37th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) . 2014 37th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) . Opatija, Croatia . IEEE . p.1294-1299
Kourous Nikolaos, Iosifidis Alexandros, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Video characterization based on activity clustering . 8th International Conference on Electrical and Computer Engineering . 2014 8th International Conference on Electrical and Computer Engineering (ICECE) . Dhaka, Bangladesh . IEEE . p.266-269
Mademlis Ioannis, Iosifidis Alexandros, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Stereoscopic video description for human action recognition . 2014 IEEE Symposium on Computational Intelligence for Multimedia, Signal and Vision Processing (CIMSIVP) . 2014 IEEE Symposium on Computational Intelligence for Multimedia, Signal and Vision Processing (CIMSIVP) . Orlando, FL, USA . IEEE . p.1-6
Mygdalis Vasileios, Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2014) . Video summarization based on Subclass Support Vector Data Description . 2014 IEEE Symposium on Computational Intelligence for Engineering Solutions (CIES) . 2014 IEEE Symposium on Computational Intelligence for Engineering Solutions (CIES) . Orlando, FL, USA . IEEE . p.183-187
Orfanidis G., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Facial image clustering in stereo videos using local binary patterns and double spectral analysis . Proceedings of the IEEE Symposium on Computational Intelligence and Data Mining (CIDM), 2014 . IEEE Symposium on Computational Intelligence and Data Mining (CIDM), 2014 . Orlando, - Florida . p.217 - 221
Orfanidis Georgios, Nikolaidis Nikolaos, Tefas Anastasios, Pitas Ioannis . (2014) . Stereo facial image clustering using double spectral analysis . 8th International Conference on Electrical and Computer Engineering . 2014 8th International Conference on Electrical and Computer Engineering (ICECE) . Dhaka, Bangladesh . IEEE . p.262-265
Papachristou Konstantinos, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Stereoscopic video shot clustering into semantic concepts based on visual and disparity information . 2014 IEEE International Conference on Image Processing (ICIP) . 2014 IEEE International Conference on Image Processing (ICIP) . Paris, France . IEEE . p.5472-5476
Papachristou Konstantinos, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Stereoscopic video shot classification based on Weighted Linear Discriminant Analysis . 2014 IEEE International Workshop on Machine Learning for Signal Processing (MLSP) . 2014 IEEE 24th International Workshop on Machine Learning for Signal Processing (MLSP) . Reims, France . IEEE . p.1-6
Tsapanos Theodoros, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Large graph clustering using DCT-based graph clustering . 2014 IEEE Symposium on Computational Intelligence in Big Data (CIBD) . 2014 IEEE Symposium on Computational Intelligence in Big Data (CIBD) . Orlando, FL, USA . IEEE . p.1-4
Tsingalis Ioannis, Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Shot type characterization in 2D and 3D video content . IEEE 16th International Workshop on Multimedia Signal Processing (MMSP) . 2014 IEEE 16th International Workshop on Multimedia Signal Processing (MMSP) . Jakarta, Indonesia . IEEE . p.1-5
Zoidi O., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2014) . Iterative Label Propagation on facial images . Proceedings of the 22nd European Signal Processing Conference (EUSIPCO), 2014 . 22nd European Signal Processing Conference (EUSIPCO), 2014 . Lisbon - Portugal . p.1222 - 1226

2013

Journal Article

Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2013) . Learning sparse representations for view-independent human action recognition based on fuzzy distances . Neurocomputing . vol.121 p.344–353
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2013) . Dynamic action recognition based on dynemes and Extreme Learning Machine . Pattern Recognition Letters . vol.34 no.15 p.1890–1898
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2013) . Multi-view action recognition based on action volumes, fuzzy distances and cluster discriminant analysis . Signal Processing . vol.93 no.6 p.1445–1457
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2013) . Minimum Class Variance Extreme Learning Machine for Human Action Recognition . IEEE Transactions on Circuits & Systems for Video Technology . vol.23 no.11 p.1968 - 1979
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2013) . Multidimensional Sequence Classification Based on Fuzzy Distances and Discriminant Analysis. . IEEE Transactions on Knowledge & Data Engineering . vol.25 no.11 p.2564-2575
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2013) . On the Optimal Class Representation in Linear Discriminant Analysis . IEEE Transactions on Neural Networks & Learning Systems . vol.24 no.9 p.1491 - 1497
Vretos Nicholas, Tefas Anastasios, Pitas Ioannis . (2013) . Using robust dispersion estimation in support vector machines . Pattern Recognition . vol.46 no.12 p.3441–3451
Zoidi Olga, Tefas Anastasios, Pitas Ioannis . (2013) . Visual Object Tracking Based on Local Steering Kernels and Color Histograms . IEEE Transactions on Circuits & Systems for Video Technology . vol.23 no.5 p.870 - 882
Zoidi Olga, Tefas Anastasios, Pitas Ioannis . (2013) . Multiplicative Update Rules for Concurrent Nonnegative Matrix Factorization and Maximum Margin Classification . IEEE Transactions on Neural Networks & Learning Systems . vol.24 no.3 p.422 - 434

Conference Proceedings Article

Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2013) . Person Identification from Actions based on Dynemes and Discriminant Learning . 2013 International Workshop on Biometrics and Forensics (IWBF) . IEEE International Workshop on Biometrics and Forensics (IWBF) . Lisbon - Portugal
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2013) . View-independent Human Action Recognition based on Multi-view Action Images and Discriminant Learning . 2013 IEEE 11th IVMSP Workshop . 11th IEEE IVMSP Workshop Image, Video and Multidimensional Signal Processing: 3D Image/Video Technologies and Applications . Seoul - Korea
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2013) . Representative Class Vector Clustering based Discriminant Analysis . 2013 Ninth International Conference on Intelligent Information Hiding and Multimedia Signal Processing . 9th IEEE International Conference on Intelligent Information Hiding and Multimedia Signal Processing . Beijing - China . p. 526 - 529
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2013) . Multi-view human action recognition: a survey . 2013 Ninth International Conference on Intelligent Information Hiding and Multimedia Signal Processing . The 9th International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IEEE) . Beijing - China . p. 522 - 525
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2013) . Dynamic Action Classification based on Iterative Data Selection and Feedforward Neural Networks . 2013 Proceedings of the 21st European Signal Processing Conference (EUSIPCO) . 21st European Signal Processing Conference . Marrakech - Morocco . p. 1 - 5
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2013) . Person identification from actions based on Artificial Neural Networks . 2013 IEEE Workshop on Computational Intelligence in Biometrics and Identity Management (IEEE SSCI 2013) . Singapore
Iosifidis Alexandros, Tefas Anastasios, Pitas Ioannis . (2013) . Active classification for human action recognition . IEEE International Conference on Image Processing . Melbourne - Australia . p.3249 - 3253
Kapsouras Ioannis, Karanikolos Stylianos, Nikolaidis Nikolaos, Tefas Anastasios . (2013) . Folk dance recognition using a bag of words approach and ISA/STIP features . 6th Balkan Conference in Informatics (BCI 2013) . Thessaloniki - Greece
Kapsouras Ioannis, Karanikolos Stylianos, Nikolaidis Nikolaos, Tefas Anastasios . (2013) . Feature Comparison and Feature Fusion for Traditional Dances Recognition . Engineering Applications of Neural Networks 14th International Conference, EANN 2013, Halkidiki, Greece . 14th Engineering Applications of Neural Networks (EANN 2013) . Halkidiki - Greece . Series "Communications in Computer and Information Science", Vol. 383
Nikitidis S., Tefas Anastasios, Pitas Ioannis . (2013) . Maximum Margin Discriminant Projections for Facial Expression Recognition . 2013 Proceedings of the 21st European Signal Processing Conference (EUSIPCO), . 21st European Signal Processing Conference, Marrakech, Morocco (EUSIPCO 2013) . Marrakech - Morocco . p. 1 - 5
Oikonomou M., Tefas Anastasios . (2013) . Direct Multi-label Linear Discriminant Analysis . 14th EANN Conference . Chalkidiki - Greece
Tefas Anastasios, Iosifidis Alexandros, Pitas Ioannis . (2013) . Neural Networks for Digital Media Analysis and Description . Engineering Applications of Neural Networks: 14th International Conference, EANN 2013, Halkidiki, Greece, September 2013, Proceedings, Part I . 14th International Conference, Engineering Applications of Neural Networks . Iliadis, Lazaros S., Papadopoulos, Harris, Jayne, Chrisina (Eds.) . Chalkidiki - Greece . p.1-11
Zoidi Olga, Tefas Anastasios, Pitas Ioannis . (2013) . Exploiting Discriminant and SVM Constraints in NMF . 2013 Proceedings of the 21st European Signal Processing Conference (EUSIPCO) . 21st European Signal Processing Conference . Marrakech - Morocco
Zoidi Olga, Tefas Anastasios, Pitas Ioannis . (2013) . Exploiting the SVM constraints in NMF with application in eating and drinking activity recognition . IEEE International Conference on Image Processing . Melbourne - Australia . p.3765 - 3769

2012

Journal Article

Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2012) . View-invariant action recognition based on Artificial Neural Networks . IEEE Transactions on Neural Networks and Learning Systems . vol.23 no.3 p.412-424
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2012) . Activity based Person Identification using Fuzzy Representation and Discriminant Learning . IEEE Transactions in Information Forensics and Security . vol.7 no.2 p.530-542
Iosifidis A., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2012) . Multi-view human movement recognition based on Fuzzy distances and Linear Discriminant Analysis . Computer Vision and Image Understanding . vol.116 no.3 p.347-360
Nikitidis S., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2012) . Subclass Discriminant Non negative Matrix Factorization for Facial Image Analysis . Pattern Recognition . vol.45 no.12 p.4080-4091
Tsapanos N., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2012) . Shape Matching Using a Binary Search Tree Structure of Weak Classifiers . Pattern Recognition . vol.45 no.6 p.2363-2376

Conference Proceedings Article

Arvanitidis G., Tefas A. . (2012) . Exploiting Graph Embedding In Support Vector Machines . IEEE International Workshop on Machine Learning for Signal Processing . Santander, Spain
Athanasiadis C., Galanopoulos D., Tefas Anastasios . (2012) . Progressive Neural Network Training For The Open Racing Car Simulato . IEEE Conference on Computational Intelligence and Games (IEEE IG 2012) . Granada - Spain . p.116-123
Athanasiadis C., Galanopoulos D., Tefas A. . (2012) . Progressive Neural Network Training For The Open Racing Car Simulator . IEEE Conference on Computational Intelligence and Games . Granada, Spain
Galanopoulos D., Athanasiadis C., Tefas A. . (2012) . Evolutionary Optimization of a Neural Network Controller for Car Racing Simulation . 7th Hellenic Conference on Artificial Intelligence . Lamia, Greece
Gavriilidis V., Tefas A. . (2012) . Exploiting Quadratic Mutual Information for Discriminant analysis . 7th Hellenic Conference on Artificial Intelligence . Lamia, Greece
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2012) . Neural representation and learning for multi-view human action recognition . The 2012 International Joint Conference on Neural Networks (IJCNN) . 2012 International Joint Conference on Neural Networks (IJCNN) . Brisbane, Australia . p. 1 - 6
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2012) . Multi-view Human Action Recognition Under Occlusion Based on Fuzzy Distances and Neural Networks . Proceedings of the 20th European Signal Processing Conference (2012) . 20th European Signal Processing Conference (2012) . Bucharest, Romania . p. 1129 - 1133
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2012) . Discriminant Action Representation for View-Invariant Person Identification . IEEE 2012 19th International Conference on Image Processing . 19th International Conference on Image Processing . Orlando, Florida . p. 1177 - 1180
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2012) . Action based Person Identification based on Self Organizing Map and Extreme Learning Machine . 9th Workshop on Self-Organizing Maps . 9th Workshop on Self-Organizing Maps . Santiago, Chile
Iosifidis A., Marami E., Tefas Anastasios, Pitas Ioannis . (2012) . Eating and drinking activity recognition based on discriminant analysis of fuzzy distances and activity volumes . IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2012) . (ICASSP2012) International Conference on Acoustics, Speech, and Signal Processing . Kyoto, Japan
Orfanidis G., Tefas A. . (2012) . Exploiting Subclass Information in Support Vector Machines . 21st International Conference on Pattern Recognition . Tsukuba Science City, Japan
Pitelis N., Tefas A. . (2012) . Discriminant Subspace Learning Based on Support Vectors Machines . 8th International Conference on Machine Learning and Data Mining, MLDM 2012 . Berlin, Germany
Vretos N., Tefas Anastasios, Pitas Ioannis . (2012) . Facial Expression Recognition With Robust Covariance Estimation And Support Vector Machines . 2012 IEEE International Workshop on Machine Learning for Signal Processing . 2012 IEEE International Workshop on Machine Learning for Signal Processing . Santander, Spain . p. 1 - 5
Zoidi O., Tefas Anastasios, Pitas Ioannis . (2012) . Visual Object Tracking via Gabor-based Salient Features Extraction . 2012 Proceeding of the 20th European Signal Processing Conference . 20th European Signal Processing Conference . Bucharest, Romania . p. 1925 - 1929
Zoidi O., Tefas Anastasios, Pitas Ioannis . (2012) . Visual Object Tracking Based on the Object's Salient Features with Application in Automatic Nutrition Assistance . 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) . 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) . Kyoto, Japan . p. 1469 - 1472

2011

Journal Article

Maronidis A., Bolis D., Tefas Anastasios, Pitas Ioannis . (2011) . Improving Subspace Learning for Facial Expression Recognition Using Person Dependent and Geometrically Enriched Training Sets . Neural Networks . vol.24 no.8 p.814-823

Conference Proceedings Article

Bouzas D., Arvanitopoulos N., Tefas A. . (2011) . Optimizing Linear Discriminant Error Correcting Output Codes Using Particle Swarm Optimization . Proceedings 21st International Conference on Artificial Neural Networks (ICANN’2011) . Espoo, Finland
Iosifidis A., Tefas Anastasios, Pitas Ioannis . (2011) . Person Specific Activity Recognition using Fuzzy Distances and Discriminant Analysis . Proceedings of the 19th European Signal Processing Conference (EUSIPCO’2011) . EUSIPCO 2011: 19th European Signal Processing Conference . Barcelona, Spain
Iosifidis A., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2011) . Learning Human Identity Using View-Invariant Multi-view Movement Representation . Biometrics and ID Management COST 2101 European Workshop, BioID 2011, Brandenburg (Havel), March 8-10, 2011, Proceedings . Biometrics and ID Management - COST 2101 European Workshop . Brandenburg, Germany . p. 217-226
Kyperountas M., Tefas Anastasios, Pitas Ioannis . (2011) . Entropy-Based Iterative Face Classification . Biometrics and ID Management : COST 2101 European Workshop, BioID 2011. Proceedings . Biometrics and ID Management : COST 2101 European Workshop, BioID 2011 . Brandenburg, Germany . Vol. 6583
Marami E., Tefas Anastasios, Pitas Ioannis . (2011) . Nutrition Assistance based on Skin Color Segmentation and Support Vector Machines . Proceedings of the International Conference on Man-Machine Interactions (ICMMI’2011) . ICMMI 2011 : International Conference on Man-Machine Interactions 2011 . Beskids, Poland
Nikitidis S., Tefas Anastasios, Pitas Ioannis . (2011) . Using Subclasses in Discriminant Non-negative Subspace Learning for Facial Expression Recognition . Proceedings 19th European Signal Processing Conference (EUSIPCO’2011) . 19th European Signal Processing Conference (EUSIPCO’2011) . Barcelona, Spain
Nikitidis S., Tefas Anastasios, Pitas Ioannis . (2011) . Recent Advances in Discriminant Non-negative Matrix Factorization . 2011 First Asian Conference on Pattern Recognition (ACPR) . 2011 First Asian Conference on Pattern Recognition (ACPR 2011) . Beijing, China . p. 1 - 6
Nikitidis S., Tefas Anastasios, Pitas Ioannis . (2011) . Facial Expression Recognition Using Clustering Discriminant Non-negative Matrix Factorization . 18th IEEE International Conference in Image Processing (ICIP’2011) . IEEE International Conference in Image Processing (ICIP’2011) . Brussels, Belgium . p. 3001 - 3004
Tefas Anastasios, Pitas Ioannis . (2011) . Human Centered Interfaces for Assisted Living . Man-Machine Interactions 2 . International Conference on Man-Machine Interactions (ICMMI’2011) . The Beskids, Poland . Vol. 103 pp 3-10
Zoidi O., Tefas Anastasios, Pitas Ioannis . (2011) . Object Tracking Based on Local Steering Kernels for Drinking Activity Recognition . Proceedings of the ITI 2011 33rd International Conference on Information Technology Interfaces (ITI) . 33rd International Conference on Information Technology Interfaces (ITI) . Dubrovnik, Croatia . p. 237 - 242

2010

Journal Article

Kyperountas Marios, Tefas Anastasios, Pitas Ioannis . (2010) . Salient feature and reliable classifier selection for facial expression classification . Pattern Recognition . Published Version . vol.43 no.3 p.972-986
Tsapanos N., Tefas Anastasios, Pitas Ioannis . (2010) . Online Shape Learning using Binary Search Trees . Image and Vision Computing . vol.28 no.7 p.1146-1154

Book Chapter

Goudelis G., Tefas Anastasios, Pitas Ioannis . (2010) . Intelligent Multimedia Analysis for Emerging Biometrics . επιμ. Sencar H. T., Velastin S., Nikolaidis Nikolaos, Lian S. . Intelligent Multimedia Analysis for Security Applications . Springer
Kyperountas M., Tefas Anastasios, Pitas Ioannis . (2010) . Discriminant Learning in Large Databases Using Training Space Partitioning . Advances in Face Image Analysis – Techniques and Technologies . editor Zhang, Y. Z. . Pennsylvania
Tefas Anastasios, Pitas Ioannis . (2010) . Principal Component Analysis . The Industrial Electronics Handbook . editors Wilamowski B., Irwin, D. . CRC press

Conference Proceedings Article

Arvanitopoulos N., Bouzas D., Tefas A. . (2010) . Subclass Error Correcting Output Codes Using Fisher's Linear Discriminant Ratio . Proceedings 20th International Conference on Pattern Recognition (ICPR’2010) . Istanbul, Turkey
Arvanitopoulos N., Bouzas D., Tefas A. . (2010) . Mutual Information Measures for Subclass Error-Correcting Output Codes Classification . Proceedings 6th Hellenic Conference on Artificial Intelligence (SETN’2010) . Athens, Greece
Bolis D., Maronidis A., Tefas Anastasios, Pitas Ioannis . (2010) . Improving the Robustness of Subspace Learning Techniques for Facial Expression Recognition . Proceedings 20th International Conference on Artificial Neural Networks (ICANN’2010) . 20th International Conference on Artificial Neural Networks (ICANN’2010) . Thessaloniki, Greece
Bouzas D., Arvanitopoulos N., Tefas A. . (2010) . Optimizing Subclass Discriminant Error Correcting Output Codes Using Particle Swarm Optimization . Proceedings IEEE International Joint Conference on Neural Networks (IJCNN’2010) . Barcelona, Spain
Marami E., Tefas A. . (2010) . Using Particle Swarm Optimization for Scaling and Rotation invariant Face Detection . Proceedings IEEE Congress on Evolutionary Computation . Barcelona, Spain
Marami E., Tefas A. . (2010) . Face Detection using Particle Swarm Optimization and Support Vector Machines . Proceedings 6th Hellenic Conference on Artificial Intelligence (SETN’2010) . Athens, Greece
Maronidis A., Tefas Anastasios, Pitas Ioannis . (2010) . Frontal View Recognition Using Spectral Clustering and Subspace Learning Methods . Proceedings 20th International Conference on Artificial Neural Networks (ICANN’2010) . 20th International Conference on Artificial Neural Networks (ICANN 2010) . Thessaloniki, Greece
Petrakis S., Tefas A. . (2010) . Neural Networks Training for Weapon Selection in First-Person Shooter Games . Proceedings 20th International Conference on Artificial Neural Networks (ICANN’2010) . Thessaloniki, Greece
Tsapanos N., Tefas Anastasios, Pitas Ioannis . (2010) . Dynamic Shape Learning and Forgetting . Artificial Neural Networks – ICANN 2010 : 20th International Conference, Thessaloniki, Greece, September 15-18, 2010, Proceedings, Part III . 20th International Conference on Artificial Neural Networks (ICANN’2010) . Thessaloniki, Greece . p.333-338

2008

Journal Article

Gkalelis N., Tefas Anastasios, Pitas Ioannis . (2008) . Combining fuzzy vector quantization with linear discriminant analysis for continuous human movement recognition . IEEE Transactions on Circuits and Systems for Video Technology . Published Version . vol.18 no.11 p.1511-1521
Goudelis G., Tefas Anastasios, Pitas Ioannis . (2008) . Emerging Biometric Modalities: a Survey . Journal on Multimodal User Interfaces . vol.2 p.217-235
Goudelis G., Tefas Anastasios, Pitas Ioannis . (2008) . Automated Facial Pose Extraction From Video Sequences Based on Mutual Information . IEEE Transactions on Circuits and Systems for Video Technology . Published Version . vol.18 no.3 p.418 - 424
Kyperountas Marios, Tefas Anastasios, Pitas Ioannis . (2008) . Dynamic training using multistage clustering for face recognition . Pattern Recognition . Published Version . vol.41 no.3 p.894-905

Conference Proceedings Article

Gkalelis N., Tefas Anastasios, Pitas Ioannis . (2008) . Sparse human movement representation and recognition . Proc. IEEE 2008 International Workshop on Multimedia Signal Processing (MMSP 2008) . International Workshop on Multimedia Signal Processing (MMSP 2008) . Cairns, Australia . Published Version
Gkalelis N., Tefas Anastasios, Pitas Ioannis . (2008) . Human movement recognition using fuzzy clustering and discriminant analysis . Proc. 16th European Signal Processing Conference (EUSIPCO 2008) . 16th European Signal Processing Conference (EUSIPCO 2008) . Lausanne, Switzerland . Published Version
Goudelis G., Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2008) . Motivating Class-specific Nonlinear Projections for Face Verification . Proceedings IEEE International Conference on Image Processing (ICIP’2008) . IEEE International Conference on Image Processing (ICIP’2008) . San Diego, CA
Kyperountas M., Tefas Anastasios, Pitas Ioannis . (2008) . Face Recognition via Adaptive Discriminant Clustering . 15th IEEE International Conference on Image Processing (ICIP’2008) . 15th IEEE International Conference on Image Processing (ICIP’2008) . San Diego,CA . p.2744-2747
Tsapanos N., Tefas Anastasios, Pitas Ioannis . (2008) . An Online Self-Balancing Binary Search Tree for Hierarchical Shape Matching . Proceedings 3rd International Conference on Computer Vision Theory & Applications (VISAPP’2008) . 3rd International Conference on Computer Vision Theory and Applications . Funchal, Madeira - Portugal . p. 591-597
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2008) . Gender Determination Using a Support Vector Machine Variant . Proceedings 16th European Signal Processing Conference (EUSIPCO’2008) . 16th European Signal Processing Conference (EUSIPCO’2008) . Lausanne, Switzerland

2007

Journal Article

Goudelis G., Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2007) . Class-Specific Kernel-Discriminant Analysis for Face Verification . IEEE Transactions on Information Forensics and Security . Published Version . vol.2 no.3 p.570 - 587
Kyperountas Marios, Tefas Anastasios, Pitas Ioannis . (2007) . Weighted Piecewise LDA for Solving the Small Sample Size Problem in Face Verification . IEEE Transactions on Neural Networks . Published Version . vol.18 no.2 p.506 - 519
Zafeiriou Stefanos, Tefas Anastasios, Pitas Ioannis . (2007) . Minimum Class Variance Support Vector Machines . IEEE Transactions on Image Processing . Published Version . vol.16 no.10 p.2551 - 2564
Zafeiriou Stefanos, Tefas Anastasios, Pitas Ioannis . (2007) . Learning Discriminant Person-Specific Facial Models Using Expandable Graphs . IEEE Transactions on Information Forensics and Security . Published Version . vol.2 no.1 p.55 - 68
Zafeiriou Stefanos, Tefas Anastasios, Pitas Ioannis . (2007) . The discriminant elastic graph matching algorithm applied to frontal face verification . Pattern Recognition . Published Version . vol.40 no.10 p.2798-2810

Conference Proceedings Article

Goudelis G., Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2007) . A novel kernel discriminant analysis for face verification . IEEE International Conference on Image Processing . Proc.of 2007 IEEE International Conference on Image Processing
Kyperountas M., Tefas Anastasios, Pitas Ioannis . (2007) . Face verification using locally linear discriminant models . Proc. of Int. Conf. on Image Processing (ICIP 2007) . Int. Conf. on Image Processing (ICIP 2007) . San Antonio
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2007) . A new class of decision surfaces based on the minimization of within class variance . 2007 IEEE International Workshop on Machine Learning for Signal Processing (MLSP 2007) . 2007 IEEE International Workshop on Machine Learning for Signal Processing (MLSP 2007) . Thessaloniki, Greece . p.441-446
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2007) . Discriminant Graph Structures for Face Verification . IEEE International Conference on Acoustics Speech and Signal Processing 2007 (ICASSP' 07) . ICASSP 2007 IEEE International Conference on Acoustics Speech and Signal Processing 2007 . Honolulu, HI . vol.1 p.I-497-I-500
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2007) . Advances in Elastic Graph Matching for Frontal Face Verification . Proceedings of the 2007 IEEE Symposium on Computational Intelligence in Image and Signal Processing (CIISP 2007) . 2007 IEEE Symposium on Computational Intelligence in Image and Signal Processing (CIISP 2007) . Honolulu, HI . p.319-324

2006

Journal Article

Zafeiriou Stefanos, Tefas Anastasios, Buciu I., Pitas Ioannis . (2006) . Exploiting discriminant information in nonnegative matrix factorization with application to frontal face verification . IEEE Transactions on Neural Networks . Published Version . vol.17 no.3 p.683 - 695

Book Chapter

Nikolaidis Nikolaos, Tefas Anastasios, Pitas Ioannis . (2006) . Chaotic Sequences for Digital Watermarking . Advances on Nonlinear Signal and Image Processing . editors Marshall S., Sicuranza G. . Hindawi Publishing Corporation . p.205-238

2005

Journal Article

Zafeiriou Stefanos, Tefas Anastasios, Pitas Ioannis . (2005) . Blind robust watermarking schemes for copyright protection of 3D mesh objects . IEEE Transactions on Visualization and Computer Graphics . Published Version . vol.11 no.5 p.569-607

Book Chapter

Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2005) . Watermarking Techniques for Image Authentication and Copyright Protection . The Handbook of Image and Video Processing . editor Bovik, A. . Elsevier Academic Press . p.1083-1109

Conference Proceedings Article

Goudelis G., Tefas Anastasios, Pitas Ioannis . (2005) . On Emerging BiometricTechnologies . Proceedings 3rd COST 275 Workshop : Biometrics on the Internet . 3rd COST 275 Workshop : Biometrics on the Internet . Hatfield, England
Kyperountas M., Tefas Anastasios, Pitas Ioannis . (2005) . Methods for Improving Discriminant Analysis for Face Authentication . IEEE International Conference on Acoustics, Speech and Signal Processing. Proceedings(ICASSP’2005) . IEEE International Conference on Acoustics, Speech and Signal (ICASSP’2005) . Philadelphia, PA . vol.2 p.549-552
Tefas Anastasios, Giannoula A., Nikolaidis Nikolaos, Pitas Ioannis . (2005) . Enhanced transform-domain correlation-based audio watermarking . Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing, ICASSP 2005 . IEEE Int. Conf. on Acoustics, Speech and Signal Processing, ICASSP 2005 . Philadelphia, PA, USA . Published Version . vol.2 p.1049-1052
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2005) . Discriminant NMFfaces for Frontal Face Verification . Proc. of IEEE Int. Workshop on Machine Learning for Signal Processing (MLSP 2005) . IEEE Int. Workshop on Machine Learning for Signal Processing (MLSP 2005) . Mystic, Connecticut . Published Version . p.355-359
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2005) . Class-Specific Discriminant Non-negative Matrix Factorization for Frontal Face Verification . Proc. of Int. Conf. Advances in Pattern Recognition (ICAPR 2005) . Int. Conf. Advances in Pattern Recognition (ICAPR 2005) . Bath, United Kingdom . Published Version . p.206-215
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2005) . Linear Discriminant Feature Selection Techniques in Elastic Graph Matching . Proc. of EURASIP European Signal Processing Conf. (EUSIPCO 2005) . EURASIP European Signal Processing Conf. (EUSIPCO 2005) . Antalya, Turkey . Published Version
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2005) . Exploiting Discriminant Information in Elastic Graph Matching . Proc. of IEEE Int. Conf. on Image Processing (ICIP 2005) . IEEE Int. Conf. on Image Processing (ICIP 2005) . Genova, Italy . Published Version . vol.3 p.768-771
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2005) . Elastic Graph Matching versus Linear Subspace Methods for Frontal Face Verification . Proc. of IEEE Int. Workshop on Nonlinear Signal and Image Processing (NSIP 2005) . IEEE Int. Workshop on Nonlinear Signal and Image Processing (NSIP 2005) . Sapporo, Japan . Published Version

2003

Journal Article

Tefas Anastasios, Nikolaidis Athanasios, Nikolaidis Nikolaos, Solachidis V., Tsekeridou S., Pitas Ioannis . (2003) . Markov chaotic sequences for correlation based watermarking schemes . Chaos Solitons and Fractals . Published Version . vol.17 no.2-3 p.567-573
Tefas Anastasios, Nikolaidis A., Nikolaidis Nikolaos, Solachidis V., Tsekeridou S., Pitas Ioannis . (2003) . Performance Analysis of Correlation-Based Watermarking Schemes Employing Markov Chaotic Sequences . IEEE Transactions on Signal Processing . Published Version . vol.51 no.7 p. 1979 - 1994

Conference Proceedings Article

Giannoula A., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2003) . Improving the Detection Reliability of Correlation-based Watermarking Techniques . Proceedings of the 2003 IEEE International Conference on Multimedia and Expo(ICME’2003) . 2003 IEEE International Conference on Multimedia and Expo . Baltimore, MD . vol.1 p.209-212
Kalivas A., Tefas Anastasios, Pitas Ioannis . (2003) . Watermarking of 3D models Using Principal Component Analysis . Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP’2003) . IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP’2003) . Baltimore, MD . vol.5 no.2 p.637-640
Laftsidis C., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2003) . Robust Multibit Audio Watermarking in the Temporal Domain . Proceedings of the 2003 IEEE International Symposium on Circuits and Systems (ISCAS’2003) . 2003 IEEE International Symposium on Circuits and Systems (ISCAS’2003) . Bangkok, Thailand . vol.2 p.944-947
Zafeiriou S., Kalyvas A., Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2003) . Watermarking of 3D mesh models robust to basic geometric transformations . Proc. of 9th Panhellenic Conf. on Informatics (PCI `03) . 9th Panhellenic Conf. on Informatics (PCI `03) . Thessaloniki, Greece . Published Version . p.575-585

2002

Journal Article

Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (2002) . Face verification using elastic graph matching based on morphological signal decomposition . Signal Processing . Published Version . vol.82 no.6 p.833-851

Conference Proceedings Article

Luizis G., Tefas Anastasios, Pitas Ioannis . (2002) . Copyright Protection of 3D Images using Watermarks of Specific Spatial Structure . Proc. of IEEE Int. Conf. on Multimedia and Expo 2002 (ICME2002) . IEEE Int. Conf. on Multimedia and Expo 2002 (ICME2002) . Lausanne, Switzerland . Published Version . vol.2 p.557-560
Nikolaidis Nikolaos, Solachidis V., Tefas Anastasios, Pitas Ioannis . (2002) . Watermark Detection: Benchmarking Perspectives . Proc. of IEEE Int. Conf. on Multimedia and Expo 2002(ICME2002), Special Session on Benchmarking of Data Hiding Technologies . IEEE Int. Conf. on Multimedia and Expo 2002(ICME2002), Special Session on Benchmarking of Data Hiding Technologies . Lausanne, Switzerland . Published Version . vol.2 p.493-496
Nikolaidis Nikolaos, Solachidis V., Tefas Anastasios, Arguriou V., Pitas Ioannis . (2002) . Benchmarking of Still Image Watermarking Methods: Principles and State of the Art . Proceedings International Conference on Electronic Imaging and the Visual Arts (EVA’2002) . Electronic Imaging & the Visual Arts 2002 (EVA2002) . Florence, Italy . Published Version . p.158-162
Tefas Anastasios, Louizis G., Pitas Ioannis . (2002) . 3D Image Watermarking robust to Geometric Distortions . Proc. of IEEE Int. Conf. on Acoustics Speech and Signal Processing 2002 (ICASSP2002) . IEEE Int. Conf. on Acoustics Speech and Signal Processing 2002 (ICASSP2002) . Florida, USA . Published Version . 2002 . vol.4 p.3465-3468

2001

Journal Article

Bartollini F., Tefas Anastasios, Barni M., Pitas Ioannis . (2001) . Image authentication techniques for surveillance applications . Proceedings of the IEEE Institute of Electrical and Electronics Engineers . Published Version . vol.89 no.10 p.1403 - 1418
Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (2001) . Using support vector machines to enhance the performance of elastic graph matching for frontal face authentication . IEEE Transactions on Pattern Analysis and Machine Intelligence . Published Version . vol.23 no.7 p.735 - 746
Tsekeridou S., Solachidis Vasileios, Nikolaidis Nikolaos, Nikolaidis Athanasios, Tefas Anastasios, Pitas Ioannis . (2001) . Statistical analysis of a watermarking system based on Bernoulli chaotic sequences . Signal Processing . Published Version . vol.81 no.6 p.1273-1293

Conference Proceedings Article

Nikolaidis A., Tsekeridou S., Tefas A., Solachidis V. . (2001) . A Survey on Watermarking Application Scenarios and Related Attacks . Proceedings IEEE International Con-ference on Image Processing (ICIP’2001) . Thessaloniki, Greece . vol.3 p.991-994
Solachidis V., Tefas Anastasios, Nikolaidis Nikolaos, Tsekeridou S., Nikolaidis Athanasios, Pitas Ioannis . (2001) . A benchmarking protocol for watermarking methods . Proc. of 2001 IEEE Int. Conf. on Image Processing(ICIP'01) . 2001 IEEE Int. Conf. on Image Processing(ICIP'01) . Thessaloniki, Greece . Published Version . vol.3 p.1023-1026
Solachidis V., Tsekeridou S., Tefas Anastasios, Pitas Ioannis . (2001) . A simple benchmarking system for performance evaluation of still image watermarking methods . Proceedings In-ternational Symposium on Telecommunications (IST 2001) . Int. Symposium on Telecommunications (IST'01) . Tehran, IRAN . Published Version . p.193-196
Tefas Anastasios, Nikolaidis Athanasios, Nikolaidis Nikolaos, Solachidis V., Tsekeridou S., Pitas Ioannis . (2001) . Markov Chaotic Sequences for Correlation based Watermarking schemes . Proceedings of International Conference on Nonlinear Dynamics(NLD 01) . International Conference on Nonlinear Dynamics(NLD 01) . Thessaloniki, Greece
Tefas Anastasios, Louizis G., Pitas Ioannis, Nikolaidis Nikolaos, Lyroudia Kleoniki . (2001) . Robust Spatial 3D Image Watermarking . Proceedings of 1st IEEE International Symposium on Signal Processing and Information Technology (ISSPIT’2001) . 1st IEEE International Symposium on Signal Processing and Information Technology . Cairo, Egypt . p.229-232
Tefas Anastasios, Nikolaidis Athanasios, Nikolaidis Nikolaos, Solachidis V., Pitas Ioannis . (2001) . Performance Analysis of Watermarking Schemes based on Skew Tent Chaotic Sequences . Proceedings Workshop on Nonlinear Signal and Image Processing (NSIP’2001) . NSIP'01 . Baltimore, Maryland, USA . Published Version
Tefas Anastasios, Pitas Ioannis . (2001) . Robust Spatial Image Watermarking using Progressive Detection . Proc. of 2001 IEEE Int. Conf. on Acoustics,Speech and Signal Processing (ICASSP 2001) . 2001 IEEE Int. Conf. on Acoustics,Speech and Signal Processing (ICASSP 2001) . Utah, USA . Published Version . vol.3 p.1973-1976
Tefas Anastasios, Nikolaidis Athanasios, Nikolaidis Nikolaos, Solachidis V., Tsekeridou S., Pitas Ioannis . (2001) . Statistical Analysis of Markov Chaotic Sequences for Watermarking applications . Proc. of 2001 IEEE Int. Symposium on Circuits and Systems(ISCAS 2001) . 2001 IEEE Int. Symposium on Circuits and Systems(ISCAS 2001) . Sydney, Australia . Published Version . vol.2 p.57-60
Tsekeridou S., Solachidis V., Nikolaidis Nikolaos, Nikolaidis Athanasios, Tefas Anastasios, Pitas Ioannis . (2001) . Theoretic Investigation of the Use of Watermark Signals derived from Bernoulli Chaotic Sequences . Proc. of the 12th Scandinavian Conf. on Image Analysis 2001 (SCIA2001) . 12th Scandinavian Conf. on Image Analysis 2001 (SCIA2001) . Bergen, Norway . Published Version . p.600-607
Tsekeridou S., Solachidis V., Nikolaidis Nikolaos, Nikolaidis Athanasios, Tefas Anastasios, Pitas Ioannis . (2001) . Theoretic Performance Analysis of a Watermarking System based on Bernoulli Chaotic Sequences . Proc. of Communications and Multimedia Security Conf. (CMS 2001) . Communications and Multimedia Security Conf. (CMS 2001) . Darmstadt, Germany . Published Version . p.81-91
Tsekeridou S., Solachidis V., Nikolaidis Nikolaos, Nikolaidis Athanasios, Tefas Anastasios, Pitas Ioannis . (2001) . Bernoulli Shift Generated Chaotic Watermarks: Theoretic Investigation . Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP2001) . IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP2001) . Salt Lake City, Utah, USA . Published Version . vol.3 p.1989-1992

2000

Journal Article

Kotropoulos Konstantinos, Tefas Anastasios, Pitas Ioannis . (2000) . Morphological elastic graph matching applied to frontal face authentication under well-controlled and real conditions . Pattern Recognition . Published Version . vol.33 no.12 p.1935-1947
Kotropoulos Konstantinos, Tefas Anastasios, Pitas Ioannis . (2000) . Frontal face authentication using morphological elastic graph matching . IEEE Transactions on Image Processing . Published Version . vol.9 no.4 p. 555 - 560
Kotropoulos Konstantinos, Tefas Anastasios, Pitas Ioannis . (2000) . Frontal face authentication using discriminating grids with morphological feature vectors . IEEE Transactions on Multimedia . Published Version . vol.2 no.1 p.14 - 26

Conference Proceedings Article

Matas J., Hamouz M., Johsson K., Kittler J., Li Y., Kotropoulos Konstantinos, Tefas Anastasios, Pitas Ioannis, Tan T., Yan H., Smeraldi F., et al. . (2000) . Comparison of face verification results on the XM2VTS database . Proc. of 2000 Int. Conf. on Pattern Recognition . 2000 Int. Conf. on Pattern Recognition . Spain . Published Version . vol.4 p.858-863
Nikolaidis Nikolaos, Tsekeridou S., Nikolaidis Athanasios, Tefas Anastasios, Solachidis V., Pitas Ioannis . (2000) . Applications of chaotic signal processing techniques to multimedia watermarking . Proceedings IEEE Workshop on Nonlinear Dynamics in Electronic Systems (NDES’2000) . IEEE Workshop on Nonlinear Dynamics in Electronic Systems . Catania Italy . Published Version . p.1-7
Tefas Anastasios, Pitas Ioannis . (2000) . Multi-bit Image Watermarking Robust to Geometric Distortions . Proc. of IEEE Int. Conf. on Image Processing (ICIP'2000) . IEEE Int. Conf. on Image Processing (ICIP'2000) . Vancouver, Canada . Published Version . vol.3 p.710-713
Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (2000) . Using Support Vector Machines for Face authentication based on elastic graph matching . Proceedings IEEE International Con-ference Image Processing (ICIP 2000) . IEEE Int. Conf. on Image Processing (ICIP'2000) . Vancouver, Canada . Published Version . vol.1 p.29-32
Tefas Anastasios, Pitas Ioannis . (2000) . Image Authentication and Tamper Proofing using Mathematical Morphology . Proc. of European Signal Processing Conf. (EUSIPCO'2000) . European Signal Processing Conf. (EUSIPCO'2000) . Tampere, Finland . Published Version
Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (2000) . Face authentication by using elastic graph matching and Support Vector Machines . Proc. of IEEE Int. Conf. on Acoustics Speech and Signal Processing (ICASSP'2000) . IEEE Int. Conf. on Acoustics Speech and Signal Processing (ICASSP'2000) . Instanbul, Turkey . Published Version . vol.4 p.2409-2412
Tefas Anastasios, Pitas Ioannis . (2000) . Image Authentication based on Chaotic Mixing . Proc. of IEEE Int. Symposium on Circuits and Systems (ISCAS'2000) . IEEE Int. Symposium on Circuits and Systems (ISCAS'2000) . Geneva, Switzerland . Published Version . vol.1 p.216-219
Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (2000) . Face authentication based on mathematical morphology . Proc. of European Workshop "Frontieres of Mathematical Morphology" . European Workshop "Frontieres of Mathematical Morphology . Strasbourg, France . Published Version

----

Journal Article

Gogousis V., Tefas Anastasios . Caricature generation utilizing the notion of anti-face . Multimedia Tools and Applications . Vol.77 no.7 p.8259–8271
Mygdalis V., Iosifidis A., Tefas Anastasios, Pitas Ioannis . Corrigendum to “Semi-supervised subclass support vector data description for image and video classification” . Neurocomputing . vol. 291 p. 237-241
Passalis N., Tefas Anastasios . Dimensionality Reduction Using Similarity-Induced Embeddings . IEEE Transactions on Neural Networks and Learning Systems
Triantafyllidou D., Nousi P., Tefas Anastasios . Fast Deep Convolutional Face Detection in the Wild Exploiting Hard Sample Mining . Big Data Research . Vol.11 p.65-76

2009

Book Chapter

Tefas Anastasios, Pitas Ioannis . (2009) . Face Verification based on Elastic Graph Matching . Biometrics: Theory Methods and Applications . editors Boulgouris N., Plataniotis K., Micheli-Tzanakou E. . Wiley-IEEE Press
Tefas Anastasios, Nikolaidis Nikolaos, Pitas Ioannis . (2009) . Image Watermarking: Techniques and Applications . The Essential Guide to Video Processing . editor Bovik, A. . Elsevier . p.597-648

Conference Proceedings Article

Gkalelis N., Tefas Anastasios, Pitas Ioannis . (2009) . Human identification from human movements . IEEE International Conference on Image Processing (ICIP), 2009 . 16th IEEE International Conference on Image Processing (ICIP), 2009 . Cairo, Egypt . Published Version . p.2585 - 2588
Gkalelis N., Tefas Anastasios, Pitas Ioannis . (2009) . Fusion of Movement Specific Human Identification Experts . Biometric ID Management and Multimodal Communication Joint COST 2101 and 2102 International Conference, Proceedings Series: Lecture Notes in Computer Science, Vol. 5707 . Joint COST 2101 and 2102 International Conference on Biometric ID Management and Multimodal Communication . Madrid, Spain . Published Version . p.138-145
Goudelis G., Tefas Anastasios, Pitas Ioannis . (2009) . Using Mutual Information to Indicate Facial Poses in Video Sequences . Proceedings 8th ACM International Conference on Image and Video Retrieval (CIVR 2009 ) . 8th ACM International Conference on Image and Video Retrieval (CIVR 2009 ) . Santorini Island, Greece
Kyperountas M., Tefas Anastasios, Pitas Ioannis . (2009) . Pairwise facial expression classification . Proceedings 11th IEEE International Workshop on Multimedia Signal Processing (MMSP’2009) . MMSP '09. IEEE International Workshop on Multimedia Signal Processing, 2009 . Rio De Janeiro, Brazil . Published Version . p.1-4

2004

Conference Proceedings Article

Markoulidis A., Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (2004) . Turning a frontal face verification technique to a system prototype . Proc. of 2nd COST275 Workshop Biometrics on the Internet . 2nd COST275 Workshop Biometrics on the Internet . Spain . Published Version
Tefas Anastasios, Nikolaidis Nikolaos . (2004) . Chaotic watermark sequences for correlation-based schemes . Proceedings 12th European Signal Processing Conference (EUSIPCO’2004) . 12th European Signal Processing Conf. EUSIPCO2004) . Vienna, Austria . Published Version . p.1891-1894
Zafeiriou S., Tefas Anastasios, Pitas Ioannis . (2004) . A Blind Robust Watermarking Scheme for Copyright Protection of 3D Mesh Models . Proc. of IEEE Int. Conf. on Image Processing (ICIP 2004) . IEEE Int. Conf. on Image Processing (ICIP 2004) . Singapore . Published Version . vol.3 p.1569-1572

1999

Conference Proceedings Article

Kotropoulos Konstantinos(Constantine), Tefas Anastasios, Pitas Ioannis, Fernandez C., Fernandez F. . (1999) . Performance assessment of morphological dynamic link architecture under optimal and real operating conditions . Proceedings of the IEEE-EURASIP Workshop on Nonlinear Signal and Image Processing (NSIP'99), Antalya, Turkey, June 20-23, 1999 . IEEE-EURASIP Workshop on Nonlinear Signal and Image Processing . A. Enis Çetin, Lale Akarun, Aysin Ertüzün, Metin N. Gurcan, Yasemin Yardimci (Eds.) . Antalya - Turkey . p.355-359
Kotropoulos Konstantinos(Constantine), Tefas Anastasios, Pitas Ioannis . (1999) . Morphological elastic graph matching applied to frontal face authentication under optimal and real conditions . IEEE International Conference onMultimedia Computing and Systems . IEEE International Conference on Multimedia Computing and Systems . Florence - Italy . vol. 2 p. 934 - 938
Richard G., Menguy Y., Guis I., Suaudeau N., Boudy J., Lockwood P., Fernandez C., Fernandez F., Kotropoulos Konstantinos(Constantine), Tefas Anastasios, Pitas Ioannis, et al. . (1999) . Multi Modal Verification for Teleservices and Security Applications(M2VTS) . IEEE International Conference on Multimedia Computing and Systems, . IEEE International Conference on Multimedia Computing and Systems (ICMCS) . Florence - Italy . vol. 2 p.1061-1063
Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (1999) . Enhancing the performance of elastic graph matching for frontal face authentication by using support vector machines . Proc. of Int. Workshop on support vector machine theory and applications (ACCAI '99) . Int. Workshop on support vector machine theory and applications (ACCAI '99) . Chania, Greece . Published Version
Tefas Anastasios, Menguy Y., Kotropoulos Konstantinos, Richard G., Pitas Ioannis, Lockwood P. . (1999) . Compensating for variable recording conditions in frontal face authentication algorithms . Proc. of IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP'99) . IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP'99) . Arizona, USA . Published Version

1998

Conference Proceedings Article

Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (1998) . Variants of Dynamic Link Architecture based on Mathematical Morphology for Frontal Face Authentication . Proc. of IEEE Conf. on Computer Vision and Pattern Recognition (CVPR'98) . IEEE Conf. on Computer Vision and Pattern Recognition (CVPR'98) . Santa Barbara, California, USA . Published Version
Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis . (1998) . Face Verification based on Morphological Shape Decomposition . Proc. of IEEE Third Int. Conf. on Automatic Face and Gesture Recognition (FG'98) . IEEE Third Int. Conf. on Automatic Face and Gesture Recognition (FG'98) . Nara, Japan . Published Version

1997

Conference Proceedings Article

Kotropoulos Konstantinos(Constantine), Tefas Anastasios, Pitas Ioannis . (1997) . Face Authentication based on Morphological Shape Decomposition . Sixth International Conference on Image Processing and Its Applications, 1997. . IEEE Conference on Image Processing and its Applications . Dublin - Ireland . vol. 2 p. 794 - 798

Updated: 2018-12-05

Quality Assurance Unit (MODIP)Aristotle University of Thessaloniki

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Anastasios Tefas

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Quality Assurance Unit (MODIP)
Aristotle University of Thessaloniki