Curriculum Vitae

Konstantinos(Constantine) Kotropoulos

Professor, School of Informatics

Personal Information

- 2310998225
- 2310998225
costas@csd.auth.gr
http://poseidon.csd.auth.gr/LAB_PEOPLE/CKotropoulos.htm
Scopus ID35563688200
Google Scholar IDc9Dl7qwAAAAJ
Researcher IDB-7928-2010
https://orcid.org/0000-0001-9939-7930
Γνωστικό Αντικείμενο:
Ψηφιακή Επεξεργασία Σήματος
Επιστημονική Ειδίκευση:
- Θετικές επιστήμες, Μαθηματικά και Πληροφορική
- Επιστήμη της πληροφορικής
- Ηλεκτρονική και αυτοματισμός

Education

Προπτυχιακές Σπουδές

1988	Δίπλωμα Ηλεκτρολόγου Μηχανικού Τμήμα Ηλεκτρολόγων Μηχανικών / Πολυτεχνική Σχολή Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης Greece

Διδακτορικό Δίπλωμα

1993	ΔΔ Τμήμα Ηλεκτρολόγων Μηχανικών & Μηχανικών Υπολογιστών / Πολυτεχνική Σχολή Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης Greece

Course Work

Courses of Winter semester of 2023–24 academic year

	SCHOOL OF INFORMATICS
NCO-05-01	SIGNALS AND SYSTEMS
NDM-07-02	DISCRETE-TIME SPEECH PROCESSING

	POSTGRADUATE STUDIES PROGRAMME "ARTIFICIAL INTELLIGENCE"
AI301	Postgraduate Diploma Thesis

	POSTGRADUATE STUDIES PROGRAMME "DIGITAL MEDIA- COMPUTATIONAL INTELLIGENCE"
DMCI103	Statistical Signal Processing- Time Series
DMCI107	Dynamic Systems: Applications ton Signals, robotics and finance
DMCI301	Postgraduate Diploma Thesis

Courses of Spring semester of 2023–24 academic year

	SCHOOL OF INFORMATICS
NDM-06-02	STOCHASTIC SIGNAL PROCESSING
NNA-08-08	ROBOTIC CONTROL

	POSTGRADUATE STUDIES PROGRAMME "ARTIFICIAL INTELLIGENCE"
AI201	Language Technology

	POSTGRADUATE STUDIES PROGRAMME "DIGITAL MEDIA- COMPUTATIONAL INTELLIGENCE"
DMCI206	Language Technology

Theses Supervised

Student Theses within AUTh

In progress

Doctoral

No title
No title
No title
No title
No title

2023–2024

Undergraduate

Improving mobile phone identification from recorded speech signals by using non-speech segments and UBM adaptation
Optimal paths over Graphs

Doctoral

No title

2022–2023

Postgraduate

ENF based multimedia authentication
No title
Facial expression recognition using two-branch disentagled generative adversarial network

Undergraduate

Speech Pathology Detection Using the Sidekit Toolbox

Doctoral

No title

2021–2022

Undergraduate

Detection of Parkinson and Alzheimer diseases by analyzing speech
Speech emotion recognition using neural networks
Generative Adversarial Networks for Voice Conversion
Author Attribution to Texts

Postgraduate

Face aging by explainable conditional adversarial autoencoders
Parkinson detection by Analyzing speech signals

Doctoral

No title

2020–2021

Postgraduate

Design and validation of a new diagnostic tool for the differentiation of pathological voices in parkinsonian patients
No title
Explanatory techniques for the interpretation of deep neural networks performance
Authorship attribution through fuction word adjacency networks for greek authors

2019–2020

Postgraduate

Named entity recognition in Greek Texts
Hotel review sentiment analysis using natural language processing
Forecasting and Smoothing methods for time series data
Personalized optimal route recommendation
Opinion Recommendation- REview Generation and Ranking Prediction
Digit recognition applied to reconstructed audio signals using deep learning
Hybrid machine learning model for action recognition and trajectory forecasting

Undergraduate

Airticket Price Prediction Using Machine Learning Techniques
Acquaintance with Generative Adversarial Networks in the Study of Speech Aging Effects

2017–2018

Postgraduate

Prediction Methods for Time-Evolving Dyadic Processes
Multimedia authentication using electric network frequency
Extraction of Electric Network Frequency
Sound Source Localization

Undergraduate

FORENSIC AUTHENTICATION OF ACOUSTIC RECORDINGS BY DETECTING DISCONTINUITIES IN THE ELECTRIC NETWORK FREQUENCY.
TWO-CLASS CLASSIFICATION PROBLEMS BY ANALYZING THE SPEECH SIGNAL.
Isolated Digit Recognition Algorithms
Detection on Parkinson Disease by Analyzing Speech

2015–2016

Postgraduate

Optimization Algorithms for Hypergraph Learning
Tagging and Recomendation Algorithms on Hypergraphs
Age Interval and Gender Prediction Using PARAFAC2 on Speech Recordings and Face Images

2014–2015

Undergraduate

DISTANCE COMPUTATION BETWEEN VIDEOS USING DYNAMIC TIME WARPING
SPECTRAL CLUSTERING APPLIED TOY IMAGES RELATED TO TOURISM

Postgraduate

GREEK FOLK SONG LYRICS AND MUSIC ANALYSIS
ROBUST MULTIDIMENSIONAL SCALING USING A MAXIMUM CORRENTROPY CRITERION
ADAPTATION AND LEARNING OVER COMPLEX NETWORKS

2013–2014

Postgraduate

No title
RESTORATION OF NOISY MUSIC RECORDINGS
SPECTRAL CLUSTERING ALGORITHMS FOR IMAGES
DETECTION OF LATENT PARAMETERS IN THE LYRICS OF GREEK FOLK SONGS

Doctoral

No title

Undergraduate

ADAPTATION AND LEARNING IN NETWORKS
MOBILE PHONE BRAND AND MODEL IDENTIFICATION USING RECORDED SPEECH SIGNALS

2012–2013

Postgraduate

No title
BAYESIAN SIGNAL PROCESSING
No title
MULTIMEDIA RECOMMENDATION TECHNIQUES BASED ON HYPERGRAPHS

Undergraduate

Horse Respiratory Signal Analysis by Means of Audio Processing Techniques

2011–2012

Undergraduate

MUSIC LYRICS CLUSTERING USING ASYMMETRIC PROBABILISTIC LATENT SEMANTIC ANALYSIS
Techniques for personalized music recommendation
DIGITAL AUDIO RESTORATION OF NOISY MUSIC RECORDINGS

Doctoral

No title

2010–2011

Postgraduate

No title
No title
No title

Undergraduate

No title

2008–2009

Undergraduate

No title
No title
No title
No title
No title

2007–2008

Postgraduate

No title
No title
No title

Doctoral

No title

2006–2007

Postgraduate

No title
No title

2005–2006

Postgraduate

No title

2003–2004

Postgraduate

No title
No title

Unknown

Undergraduate

No title

Administrative Work

Τμήματος
#	Από	Έως	Θέση Όργανο / Επιτροπή
1	2007	2016	Member, OMEA

Ιδρύματος
#	Από	Έως	Θέση Όργανο / Επιτροπή
2	2018	2022	Director, Πρόγραμμα Μεταπτυχιακών Σπουδών στα Ψηφιακά Μέσα - Υπολογιστική Νοημοσύνη
1	2017	2018	Director, Τομέας Γ Δικτύων, Επικοινωνιών και Ανάλυσης Πληροφοριών

Άλλο
#	Από	Έως	Θέση Περιγραφή
7	2017	2018	Αξιολογητής, Εξωτερικός αξιολογητής για την προαγωγή στη βαθμίδα Ερευνητή Α, Ινστιτούτο Αστρονομίας και Τηλεπισκόπησης, Εθνικό Αστεροσκοπείο Αθηνών
6	2014	2015	Αξιολογητής, Εξωτερικός αξιολογητής για προαγωγή στη βαθμίδα του Αναπληρωτή Καθηγητή στο Athens Institute of Tehcnology
1	2011	2012	Πρόεδρος, Ομάδας Εργασίας Αξιολόγησης ειδών στο διαγων. 303/2011 «Προμήθεια εργαστηριακού εξοπλισμού βασικής έρευνας"
2	2011	2012	Μέλος, Σύνταξη και Υποβολή Πρότασης Προγράμματος Επικαιροποίησης Γνώσεων Αποφοίτων «Πληροφορική - Παγκόσμιος Ιστός»
4	2010	2011	Εκλέκτορας, Εκλογή στη Βαθμίδα Ερευνητή Β, Ινστιτούτο Πληροφορικής, Ίδρυμα Τεχνολογίας & Έρευνας
5	2010	2011	Εκλέκτορας, Εκλογή στη Βαθμίδα Ερευνητή Γ', Ινστιτούτο Τηλεματικής και Πληροφορικής, Εθνικό Κέντρο Έρευνας και Τεχνολογικής Ανάπτυξης
3	2009	2010	Μέλος, Σύνταξη Εντύπου Υποβολής Πρότασης από το Τμήμα για την «Προμήθεια εργαστηριακού εξοπλισμού βασικής έρευνας ΑΠΘ»

Research Projects

Coordinator
2023–2025	Dissemination of research results obtained by the group on Signal Processing and Information Analysis
2023–2024	Support of Internationalization Activities of Aristotle University of Thessaloniki - Sub-project 9 "Postgraduate Studies Program on Digital Media-Computational Intelligence
2022–2024	Covering the needs of the Department of Informatics
2022–2022	Sponsorships to 2022 ΙΕΕΕ Workshop on Image, Video, and Multidimensional Signal Processing (IVMSP 2022)
2022–2022	Sponsorships to 2022 ΙΕΕΕ Workshop on Image, Video, and Multidimensional Signal Processing (IVMSP 2022)
2022–2022	2022 ΙΕΕΕ Workshop on Image, Video, and Multidimensional Signal Processing (IVMSP 2022)
2022–2025	Multimodal Device Fingerprint Analysis
2021–2024	Optimal Path Recommendation with Multiple Criteria
2019–2022	Asessment of information truthlikeliness and authenticity
2019–2022	Information Processing Exploiting Sparse and Low-Rank Representations
2019–2019	1st International Summer School "Learning from Signals, Images, and Video"
2018–2021	Tools for Promoting Tourism Experience
2018–2018	Research Day
2017–2017	Financing for the Postgraduate Study Program in " Internet and Wed Computing" from the Greek Ministry of Education, Research & Religious Affairs 2017
2017–2017	Financing for the Postgraduate Study Program in " Informatics and Communications" from the Greek Ministry of Education, Research & Religious Affairs 2017
2017–2020	Digital signal processing with applications to biometrics anf forensics
2017–2017	Convention: "Awards ceremony of the Department of Informatics-Presentation of postgraduate programs"
2015–2020	Internet and Web Computing
2015–2022	Internet and Web Computing
2015–2020	Informatics and telecommunications.
2012–2015	Advanced tourism planning system
2006–2009	Multimodal emotion state recognition of advanced call-center clients
2003–2020	Services for the linking of undergraduate and postgraduate students with the market
2002–2007	Multimodal speech processing

Participant
2019–2020
2018–2023
2012–2015	Academic opencourses of Aristotle University of Thessaloniki
2012–2013
2011–2024
2006–2013	Exploitation of results in the field of digital media
2005–2007	Efficient techniques for information organization, browzing and retrieval in multimedia.
2004–2008	Network of Excellence on Multimedia understanding through Semantics, Computation and Learning (MUSCLE)
2003–2006	Networked audiovisual media technologies
2003–2007	Virtual Reality use for Emergency Response Training
2003–2005	Programme of postgraduate studies in informatics in specializations: digital media, communication systems and technologies, computational systems, technologies of infor. and commun. in education
2003–2008	Reformation of the existing undergraduate programme of studies of the Informatics Department
2001–2017
2000–2004	Models for Unified Multimedia Information Retrieval (MOUMIR)
2000–2001	3D image processing and virtual reality in medicine and dentistry.
2000–2001	Easy and friendly access to geographic information for mobile users.HYPERGEO
1999–2000	Distance learning of OTE western Macedonia.
1999–2024
1999–2024	Πληρωμή μελών ΔΕΠ
1998–2007	Πληρωμή μέλους ΔΕΠ
1997–2023	Πληρωμή μελών ΔΕΠ ΑΠΘ για αξιολογήσεις και λοιπές υπηρεσίες - Ν. 2530/97 (ΓΓΕΤ )
1996–1998	Ανάπτυξη τεχνικών ψηφιακών υπογραφών για εφαρμογές πολυμέσων.
1996–2024	Πληρωμές μελών ΔΕΠ.
1995–1998	Multi modal verification for teleservices and security applications
1995–1997	OPEN KERNEL FOR ACCESS TO PROTECTED INTEROPERABLE INTERACTIVE SERVICES
1995–1998	Ανθίβολον: Ηλεκτρονική επεξεργασία και τεκμηρίωση ιερών εικόνων και τοιχογραφιών.
1994–	Μη γραμμικές και προσαρμοστικές τεχνικές για ψηφιακή επεξεργασία εικόνας, τεχνητής εικόνας και νευρωνικά δίκτυα.
1994–1995	Acces control and copyrght protection for images.
1993–1995	Παράλληλη ψηφιακή επεξεργασία κινούμενων εικόνων.
1992–	Κατάρτιση σε προηγμένη πληροφορική.
1991–1995	Επικοινωνία ψηφιακών στερεοσκοπικών εικονοσειρών και εφαρμογές.
1991–	Ψηφιακή επεξεργασία, ανάλυση και αποθήκευση έγχρωμων εικόνων με μεθόδους επεξεργασίας πολυκαναλικών σημάτων.
1990–	Κατάρτιση νέων επιστημόνων σε προηγμένα συστήματα πληροφορικής.
1987–	Κατασκευή ενός συστήματος εμπειρογνώμονος για την γεωφυσική ερμηνεία σεισμικών δεδομένων σε έρευνες πετρελαίου.

Non ELKE AUTh

Participation

2006-2008Βιομετρία για Αναγνώριση Εγγράφων Ταυτότητας και Έξυπνες Κάρτεςν
2012-2016Integrating Βιομετρία και Εγκληματολογία στην Ψηφιακή Εποχή
2012-2015ΕΡΑΣΙΤΕΧΗΣ: Επεξεργασία, Ανάλυση, Σύνθεση και Αναζήτηση Περιεχομένου για Πολυμεσικές Βάσεις Παραδοσιακής Μουσικής και Χορών
2010-2013Ψηφιακή Επεξεργασία Ήχου με Έμφαση στη Μουσική
2001-2003Εργαλεία για την Παραγωγή Τρισδιάστατου Εικονικού Περιεχομένου
2001-2005Βιομετρική αναγνώριση προσώπων στο Ίντερνετ

Connection to Society

Publications

(2022)

Journal Article

Ntemi Myrsini, Kotropoulos Konstantinos(Constantine) (2022). Online hotel rating prediction through a dynamic weighted ordered probit model. Digital Signal Processing. vol.120 no.C p.103310.
Pantraki Evangelia, Tsingalis Ioannis, Kotropoulos Konstantinos(Constantine) (2022). Cross-lingual transfer learning: A PARAFAC2 approach. Pattern Recognition Letters. vol.159 no.C p.167-173.

(2021)

Journal Article

Karantaidis Georgios, Sarridis Ioannis, Kotropoulos Konstantinos(Constantine) (2021). Adaptive hypergraph learning with multi-stage optimizations for image and tag recommendation. Signal Processing: Image Communication. vol.97 no.C p.116367.
Ntemi Myrsini, Kotropoulos Konstantinos(Constantine) (2021). A jump-diffusion particle filter for price prediction. Signal Processing. vol.183 no.C p.107994.
Pantraki Evangelia, Kotropoulos Konstantinos(Constantine) (2021). Face aging using global and pyramid generative adversarial networks. Machine Vision and Applications. vol.32 no.4.

(2019)

Conference Proceedings Article

Pantraki Evangelia, Kotropoulos Konstantinos(Constantine), Lanitis Andreas (2019). Leveraging Image-to-image Translation Generative Adversarial Networks for Face Aging. ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). Brighton - UK. IEEE. p.8370-8374.
Pantraki Evangelia, Kotropoulos Konstantinos(Constantine) (2019). Face aging as image-to-image translation using Shared-Latent Space generative adversarial networks. 2018 IEEE Global Conference on Signal and Information Processing (GlobalSIP). Anaheim, California - USA. IEEE. p.306-310.

(2018)

Journal Article

Mandanas F, Kotropoulos Konstantinos(Constantine) (2018). M-estimators for robust multidimensional scaling employing ℓ2,1norm regularization. Pattern Recognition. vol.73 p.235-246.
Mandanas Fotios, Kotropoulos Konstantinos(Constantine) (2018). M-estimators for robust multidimensional scaling employing ℓ2, 1 norm regularization. Pattern Recognition. vol.73 p.235-246.

Conference Proceedings Article

Karantaidis Georgios, Kotropoulos Konstantinos(Constantine) (2018). Assessing spectral estimation methods for electric network frequency extraction. Proceedings of the 22nd Pan-Hellenic Conference on Informatics. Athens - Greece. ACM. p.202-207.

(2017)

Journal Article

Mandanas F, Kotropoulos Konstantinos(Constantine) (2017). Robust Multidimensional Scaling Using a Maximum Correntropy Criterion. IEEE Transactions on Signal Processing. vol.65 no.4 p.919-932.
Pantraki E, Kotropoulos Konstantinos(Constantine), Lanitis A (2017). Age interval and gender prediction using PARAFAC2 and SVMs based on visual and aural features. IET Biometrics. vol.6 no.4 p.290-298.

Conference Proceedings Article

Panagopoulos M, Kotropoulos Konstantinos(Constantine) (2017). Image tagging using tensor decomposition. 6th International Conference on Information, Intelligence, Systems and Applications (IISA). Corfu, Greece.
Pantraki E, Kotropoulos Konstantinos(Constantine) (2017). Multi-Way regression for age prediction exploiting speech and face image information. 25th European Signal Processing Conference. Kos, Greece. vol.2017-January p.2196-2200.

(2016)

Conference Proceedings Article

Chasapi A, Kotropoulos Konstantinos(Constantine), Pliakos K (2016). Adaptive algorithms for hypergraph learning. 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). Shanghai, China. p.1179-1183.
Fotiadou E, Bassiou N, Kotropoulos Konstantinos(Constantine) (2016). Greek folk music classification using auditory cortical representations. 2016 24th European Signal Processing Conference (EUSIPCO). Budapest, Hungary. p.1133-1137.
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. Santorini, Greece. p.113-116.
Medentzidou P, Kotropoulos Konstantinos(Constantine) (2016). Restoration of missing data in Greek folk music by interpolation techniques. 2016 Digital Media Industry and Academic Forum (DMIAF). Santorini, Greece. p.113-116.
Pantraki E, Kotropoulos Konstantinos(Constantine), Lanitis A (2016). Age interval and gender prediction using PARAFAC2 applied to speech utterances. 2016 4th International Conference on Biometrics and Forensics (IWBF). Limassol, Cyprus.

(2015)

Journal Article

Panagakis Y, Kotropoulos Konstantinos(Constantine), Arce G.R (2015). Music genre classification via joint sparse low-rank representation of audio features. ACM/IEEE Trans. Audio, Speech, and Language Processing. vol.22 no. 12.

(2014)

Journal Article

Bassiou N, Kotropoulos Konstantinos(Constantine) (2014). Online PLSA: Batch updating techniques including out of vocabulary words. IEEE Transactions on Neural Networks and Learning Systems. vol.25 no.11.
Kotropoulos Konstantinos(Constantine) (2014). Source phone identification using sketches of features. IET Biometrics. vol.3 no.2 p. 75-83.
Panagakis Y, Kotropoulos Konstantinos(Constantine) (2014). Elastic net subspace clustering applied to pop/rock music structure analysis. Pattern Recognition Letters. vol.38 no.1 p. 46-53.
Panagakis Yannis, Κοτρόπουλος Κωνσταντίνος (2014). Elastic net subspace clustering applied to pop/rock music structure analysis. Pattern Recognition Letters.

Conference Proceedings Article

Bassiou Nikoletta, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2014). Greek folk music denoising under a symmetric α-stable noise assumption. 10th International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness. Rhodes, Greece. IEEE. p.18-23.

(2013)

Journal Article

Panagakis Yannis, Kotropoulos Konstantinos(Constantine) (2013). Music classification by low-rank semantic mappings. EURASIP Journal on Audio, Speech, and Music Processing.

Conference Proceedings Article

Bassiou N, Kotropoulos Konstantinos(Constantine), Koliopoulou E (2013). Symmetric a-stable sparse linear regression for musical audio denoising. 8th International Symposium Image and Signal Processing, and Analysis (ISPA 2013 symposium). Trieste - Italy. p.375-380.
Giouvanakis E, Kotropoulos Konstantinos(Constantine), Theodoridis A, Pitas Ioannis (2013). A game with a purpose for annotating Greek folk music in a web content management system. Proceedings of DSP2013. Santorini - Greece.
Kotropoulos Konstantinos(Constantine) (2013). Telephone Handset Identification Using Sparse Representations of Spectral Feature Sketches. International Workshop Biometrics and Forensics (IWBF 2013). Lisbon - Portugal.
Theodoridis Antonis, Kotropoulos Konstantinos(Constantine), Panagakis Yannis (2013). Music recommendation using hypergraphs and group sparsity. IEEE International Conference on Acoustics, Speech and Signal Processing. Vancouver. p.56 - 60.

(2012)

Conference Proceedings Article

Panagakis Y, Kotropoulos C (2012). Telephone Handset Identification by Feature Selection and Sparse Representations. Proceedings 2012 IEEE International Workshop Information Forensics and Security. Tenenerife, Spain.
Panagakis Y, Kotropoulos C (2012). Music Structure Analysis by Subspace Modeling. Proceedings 20th European Signal Processing Conference. Bucharest, Romania. p.1459-1463.
Panagakis Y, Kotropoulos C (2012). Music Structure Analysis by Ridge Regression of Beat-Sychronous Audio Features. Proceedings 13th International Conference Music Information Retrieval. Porto, Portugal.
Panagakis Y, Kotropoulos C (2012). Automatic Telephone Handset Identification by Sparse Representation of Random Spectral Features. Proceedings 14th ACM Workshop on Multimedia Security. Coventry, UK. p.91-95.
Panagakis Y, Kotropoulos C (2012). Automatic Music Tagging by Low-Rank Representation. Proceedings 2012 IEEE International Conference Audio, Speech, and Signal Processing. Kyoto, Japan. p.497-500.

(2011)

Journal Article

Bassiou N, Kotropoulos C (2011). RPLSA: A Novel Updating Scheme for Probabilistic Latent Semantic Analysis. Computer, Speech & Language. vol.25 no.4 p.741-760.
Bassiou N, Kotropoulos C (2011). Long Distance Bigram Language Models Applied to Word Clustering. Pattern Recognition. vol.44 no.1 p.145-158.

Conference Proceedings Article

Panagakis Y, Kotropoulos C, Arce G. R (2011). l1-Graph Based Music Structure Analysis. Proceedings International Symposium Music Information Retrieval (ISMIR’2011). Miami, FL. p.495-500.
Panagakis Y, Kotropoulos C (2011). Automatic Music Tagging via PARAFAC2. Proceedings IEEE International Conference on Audio, Speech & Signal Processing (ICASSP’2011). Prague, Czech Republic. p.481-484.
Panagakis Y, Kotropoulos C (2011). Automatic Music Mood Classification via Low-rank Representation. Proceedings 19th European Signal Processing Conference (EUSIPCO’2011). Barcelona, Spain. p.689-693.

(2010)

Journal Article

Bassiou N, Moschou Vassiliki, Kotropoulos Konstantinos(Constantine) (2010). Speaker Diarization Exploiting the Eigengap Criterion and Cluster Ensembles. IEEE Transactions on Audio, Speech & Language Processing. vol.18 no.8 p.2134-2144.
Benetos E, Kotropoulos C (2010). Non-negative Tensor Factorization Applied to Music Genre Classification. IEEE Transactions on Audio, Speech & Language Processing. vol.18 no.8 p.1955-1967.
Panagakis Yannis, Kotropoulos Konstantinos, Arce Gonzalo R (2010). Non-negative multilinear principal component analysis of auditory temporal modulations for music genre classification. IEEE Transactions on Audio Speech and Language Processing. Published Version. vol.18 no.3 p.576-588.

Conference Proceedings Article

Bassiou N, Kotropoulos C (2010). Word Clustering Using PLSA Enhanced with Long Distance Bigrams. Proceedings 20th International Conference on Pattern Recognition (ICPR’2010). Istanbul. Turkey. p.4226-4229.
Kotropoulos C, Arce G. R, Panagakis Y (2010). Ensemble Discriminant Sparse Projections Applied to Music Genre Classification. Proceedings International Conference on Pattern Recognition (ICPR'2010). Istanbul, Turkey. p.823-825.
Kotti M, Patterno F, Kotropoulos C (2010). Speaker-independent Negative Emotion Recognition. Proceedings 2nd International Workshop on Cognitive Information Processing. Elba Island, Italy. p.417-422.
Panagakis Y, Kotropoulos C, Arce G. R (2010). Sparse Multi-label Linear Embedding within Nonnegative Tensor Factorization Applied to Music Tagging. Proceedings International Conference on Music Information Retrieval (ISMIR’2010). Utrecht, The Netherlands. p.393-398.
Panagakis Y, Kotropoulos C, Arce G. R (2010). Sparse Multi-label Linear Embedding Nonnegative Tensor Factorization for Automatic Music Tagging. Proceedings European Signal Processing Conference (EUSIPCO’2010). Aalborg, Denmark. p.492-496.
Panagakis Y, Kotropoulos C (2010). Music Genre Classification via Topology Preserving Non-negative Tensor Factorization and Sparse Representations. Proceedings IEEE International Conference on Acoustics, Speech & Signal Processing(ICASSP’2010). Dallas, TX. p.249-252.

(2009)

Journal Article

Almpanidis G, Kotti M, Kotropoulos C (2009). Robust Detection of Phone Boundaries Using Model Selection Criteria with Few Observations. IEEE Transactions on Audio, Speech & Language Processing. vol.17 no.2 p.287-298.
Buciu I, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2009). Comparison of ICA Approaches for Facial Expression Recognition. Signal, Image & Video Processing. vol.3 no.4 p.1703-1711.
Kotropoulos C, Arce G. R (2009). Linear Discriminant Classifier with Reject Option for the Detection of Vocal Fold Paralysis and Vocal Fold Edema. EURASIP Advances in Signal Processing. vol.2009.
Ververidis D, Kotropoulos C (2009). Information Loss of the Mahalanobis Distance in High Dimensions: Applications to Feature Selection. IEEE Transactions on Pattern Analysis & Machine Intelligence. vol.31 no.12 p.2275-2281.

Book Chapter

Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2009). Visual speech processing and recognition. Visual Speech Recognition: Lip Segmentation and Mapping. editors Liew A., Wang S. IGI Publishing. p.261-293.

Conference Proceedings Article

Panagakis Y, Kotropoulos Konstantinos, Arce G.R (2009). Music genre classification using locality preserving non-negative tensor factorization and sparse representations. Proc. 2009 Int. Symposium Music Information Retrieval. Kobe, Japan. Published Version. p.249-254.
Panagakis Y, Kotropoulos Konstantinos, Arce G.R (2009). Music genre classification via sparse representations of auditory temporal modulations. Proceeding of the 17th European Signal Processing Conference (EUSIPCO 2009). Glasgow, Scotland. Published Version. p.1-5.

(2008)

Journal Article

Almpanidis G, Kotropoulos C (2008). Phonemic Segmentation Using the Generalised Gamma Distribution and Small Sample Bayesian Information Criterion. Speech Communication. vol.50 no.1 p.38-55.
Kotti M, Moschou Vassiliki, Kotropoulos Konstantinos(Constantine) (2008). Speaker Segmentation and Clustering. Signal Processing. vol.88 no.5 p.1091-1124.
Kotti M, Benetos E, Kotropoulos C (2008). Computationally Efficient and Robust BIC-based Speaker Segmentation. IEEE Transactions on Audio, Speech & Language Processing. vol.16 no.5 p.920-933.
Kotti Margarita, Ververidis Dimitrios, Evangelopoulos Georgios, Panagakis Ioannis, Kotropoulos Konstantinos, Maragos Petros, Pitas Ioannis (2008). Audio-Assisted Movie Dialogue Detection. IEEE Transactions on Circuits and Systems for Video Technology. Published Version. vol.18 no.11 p.1618 - 1627.
Ververidis D, Kotropoulos C (2008). Gaussian Mixture Modeling by Exploiting the Mahalanobis Distance. IEEE Transactions on Signal Processing. vol.56 no.7 p.2797-2811.
Ververidis D, Kotropoulos C (2008). Fast and Accurate Sequential Floating Forward Feature Selection with the Bayes Classifier Applied to Speech Emotion Recognition. Signal Processing. vol.88 no.12 p.2956-2970.

Book Chapter

Benetos E, Siatras S, Kotropoulos Konstantinos(Constantine), Nikolaidis Nikolaos, Pitas Ioannis (2008). Movie Analysis with Emphasis to Dialogue and Action Scene Detection. Multimodal Processing and Interaction: Audio, Video, Text. editors Maragos P., Potamianos, A., Gros P. Springer. vol.33 p.157-178.

Conference Proceedings Article

Benetos E, Kotropoulos Konstantinos (2008). A tensor-based approach for automatic music genre classification. Proceedings 16th European Signal Processing Conference (EUCIPCO 2008). Lausanne, Switzerland.
Kotti M, Kotropoulos Konstantinos (2008). Gender Classification In Two Emotional Speech Databases. Proceedings International Conference on Pattern Recognition (ICPR’2008). Florida, U.S.A. Published Version.
Moschonas P, Kotropoulos Konstantinos (2008). Multimodal Speaker Identification based on Text and Speech. Proc. COST 2101 Workshop Biometrics and Identity Management BioID'2008. Rosklide University, Denmark. Published Version. vol.5372 p.100-106.
Panagakis Y, Benetos E, Kotropoulos Konstantinos (2008). Music genre classification: A multilinear approach. Proc. Int. Symposium Music Information Retrieval. Philadelphia, U.S.A. Published Version. p.583-588.
Ververidis D, Kotsia I, Kotropoulos Konstantinos, Pitas Ioannis (2008). Multi-modal emotion-related data collection within a virtual earthquake emulator. Proc. Of 6th Language Resources and Evaluation Conference. Marrakech, Morocco. Published Version.

(2007)

Journal Article

Almpanidis G, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2007). Focused Crawling using Latent Semantic Indexing: an Application for Vertical Search Engines. Information Systems. vol.32 no.6 p.886-908.
Almpanidis G, Kotropoulos Konstantinos, Pitas Ioannis (2007). Combining text and link analysis for focused crawling—An application for vertical search engines. Information Systems. Published Version. vol.32 no.6 p.886-908.
Bassiou N, Kotropoulos C (2007). Color Histogram Equalization. Computer Vision & Image Understanding. vol.107 no.1-2.
Cernekov Zuzana, Kotropoulos Konstantinos, Pitas Ioannis (2007). Video shot boundary detection using singular value decomposition and statistical tests. Journal of Electronic Imaging. Published Version. vol.16 no.4.
Georgakis A, Kotropoulos Konstantinos, Xafopoulos A, Pitas Ioannis (2007). Marginal median SOM for document organization and retrieval. Neural Networks. Published Version. vol.17 no.3 p.365-377.
Kotti Margarita, Benetos Emmanouil, Kotropoulos Konstantinos, Pitas Ioannis (2007). A neural network approach to audio-assisted movie dialogue detection. Neurocomputing. Published Version. vol.71 no.1-3 p.157-166.
Kyperountas Marios, Kotropoulos Konstantinos, Pitas Ioannis (2007). Enhanced eigen-audioframes for audiovisual scene change detection. IEEE Transactions on Multimedia. Published Version. vol.9 no.4 p.785 - 797.
Moschou Vassiliki, Ververidis D, Kotropoulos Konstantinos(Constantine) (2007). Assessment of Self Organizing Map Variants for Clustering with Application to Redistribution of Emotional Speech Patterns. Neurocomputing. vol.71 no.1-3 p.147-156.

Conference Proceedings Article

Almpanidis G, Kotropoulos C (2007). Automatic Phonemic Segmentation Using the Bayesian Information Criterion with Generalized Gamma Priors. Proceedings 15th European Signal Processing Conference (EUSIPCO’2007). Poznan, Poland. p.2055-2059.
Almpanidis G, Kotropoulos Konstantinos (2007). Automatic phonemic segmentation using the Bayesian information criterion with generalised Gamma priors. Proc. of 15th European Signal Processing Conference (EUSIPCO 2007). Poznan, Poland. Published Version.
Benetos E, Kotti M, Kotropoulos C (2007). Large-scale musical instrument identification. Proceedings 4th Sound and Music Computing Conference (SMC’2007). Lefkada, Greece. p.283-286.
Benetos E, Kotti M, Kotropoulos Konstantinos (2007). Large scale musical instrument identification. Proceedings SMC'07, 4th Sound and Music Computing Conference. Lefkada, Greece. Published Version.
Kotti M, Benetos E, Kotropoulos Konstantinos (2007). Neural network-based movie dialogue detection. Proc. of 10th Int. Conf. Engineering Applications of Neural Networks (EANN 2007). Thessaloniki, Greece. Published Version. p.380-386.
Moschou Vassiliki, Kotti M, Benetos E, Kotropoulos Konstantinos (2007). Systematic comparison of BIC-based speaker segmentation systems. Proceedings of, International Workshop on Multimedia Signal Processing (MMSP-2007). Crete, Greece. Published Version. p.66-69.
Sedaaghi M, Kotropoulos C, Ververidis D (2007). Improving Speech Emotion Recognition Using Adaptive Genetic Algorithms. Proceedings 15th European Signal Processing Conference (EUSIPCO’2007). Poznan, Poland. p.2209-2213.
Sedaaghi M, Kotropoulos Konstantinos, Ververidis D (2007). Using adaptive genetic algorithms to improve speech emotion recognition. Proceedings IEEE Multimedia Signal Processing Conference (MMSP 2007). Crete. Published Version. p.461-464.
Ververidis D, Kotropoulos Konstantinos (2007). Accurate estimate of the cross-validated prediction error variance in Bayes classifiers. Proc. of Machine Learning for Signal Processing (MLSP). Thessaloniki. Published Version. 2007. p.354-359.

(2006)

Journal Article

Buciu I, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2006). Demonstrating the Stability of Support Vector Machines for Face Detection. Signal Processing. vol.86 no.9 p.2364-2380.
Buciu I, Kotropoulos Konstantinos, Pitas Ioannis (2006). Demonstrating the stability of support vector machines for classification. Signal Processing. Published Version. vol.86 no.9 p.2364-2380.
Ververidis D, Kotropoulos C (2006). Emotional Speech Recognition: Resources, Features, and Methods. Speech Communication. vol.48 no.9 p.1162-1181.

Conference Proceedings Article

Almpanidis G, Kotropoulos Konstantinos (2006). Phoneme segment boundary detection based on the generalized Gamma distribution. Proc. of 2006 Int. Symposium on Industrial Electronics (ISIE 2006). Montreal, Canada. Published Version. p.691-695.
Almpanidis G, Kotropoulos Konstantinos (2006). Voice activity detection with generalized Gamma distribution. Proc. of 2006 IEEE Int. Conf. on Multimedia and Expo (ICME 2006). Toronto Ontario, Canada. Published Version. p.961-964.
Almpanidis G, Kotropoulos Konstantinos (2006). Voice activity detection using the generalized Gamma distribution. Proc. of 4th Panhellenic Artificial Intelligence Conf. (SETN-06). Heraklion, Greece. Published Version. p.3-12.
Bassiou N, Kotropoulos Konstantinos (2006). Color histogram equalization using probability smoothing. Proc. of XIV European Signal Processing Conf. (EUSIPCO 2006). Florence, Italy. Published Version.
Benetos E, Kotti M, Kotropoulos C (2006). Applying Supervised Classifiers Based on Non-Negative Matrix Factorization to Musical Instrument Classification. Proceedings IEEE International Conference Multimedia and Expo (ICME’2006). Toronto, Canada. p.2105-2108.
Benetos E, Kotropoulos C, Lidy T, Rauber A (2006). Testing Supervised Classifiers based on Non-Negative Matrix Factorization to Musical Instrument Classification. Proceedings 14th European Signal Processing Conference (EUSIPCO’2006). Florence, Italy.
Benetos E, Kotropoulos Konstantinos, Lidy T, Rauber A (2006). Testing supervised classifiers based on non-negative metrix factorization to musical instrument classification. Proc. of European Signal Processing Conf. (EUSIPCO 2006). Florence, Italy. Published Version.
Benetos E, Kotti M, Kotropoulos Konstantinos (2006). Applying supervised classifiers based on non-negative metrix factorization to musical instrument classification. Proc. of 2006 IEEE Int. Conf. on Multimedia and Expo (ICME 2006). Toronto, Ontario, Canada. Published Version. 2006.
Benetos E, Kotti M, Kotropoulos Konstantinos (2006). Musical instrument classification using non-negative matrix factorization and subset feature selection. Proc. of 2006 IEEE Int. Conf. on Acoustics, Speech, and Signal Processing (ICASSP 2006). Toulouse, France. Published Version. vol.5 p.221-224.
Benetos E, Kotti M, Kotropoulos Konstantinos (2006). Musical instrument classification using non-negative matrix factorization algorithms. Proc. of IEEE Int. Symposium Circuits & Systems (ISCAS 2006). Island of Kos, Greece. Published Version.
Benetos E, Kotti M, Kotropoulos Konstantinos (2006). Application of non-negative matrix factorization to musical instrument classification. Proceedings 2nd International Symposium Communications, Control, and Signal Processing (ISCCSP’2006). Marrakech, Morocco. Published Version.
Haindl M, Somol P, Ververidis D, Kotropoulos C (2006). Feature Selection Based on Mutual Correlation. Proceedings 11th Iberoamerican Congress in Pattern Recognition (CIARP’2006). Cancun, Mexico. p.569-577.
Kotropoulos C, Papaioannou A (2006). A Novel-Updating Sheme for Probabilistic Latent Semantic Indexing. Proceedings 4th Panhellenic Conference on Artificial Intelligence (SETN’2006). Heraklion, Greece. p.137-147.
Kotropoulos Konstantinos, Papaioannou A (2006). A novel-updating scheme for probabilistic latent semantic indexing. Proc. of 4th Panhellenic Artificial Intelligence Conf. (SETN-06). Heraklion, Greece. Published Version.
Kotropoulos Konstantinos, Moschou Vassiliki (2006). Self organizing maps for reducing the number of clusters by one simplex subspaces. Proc. of 2006 IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, (ICASSP 2006). Toulouse, France. Published Version.
Kotropoulos Konstantinos(Constantine), Moschou Vassiliki (2006). Self-Organizing Maps for Reducing the Number of Clusters by one on Simplex Subspaces. Proceedings IEEE International Conference Acoustics, Speech, and Signal Processing (ICASSP’2006). Toulouse, France. vol.5 p.725-728.
Kotti M, Benetos E, Kotropoulos C, Martins L. G. P. M (2006). Speaker Change Detection Algorithms Using Bayesian Information Criterion. Proceedings 2nd Interanational Symposium Communications, Control, and Signal Processing (ISCCS'2006). Marrakech, Morocco.
Kotti M, Kotropoulos Konstantinos, Zolko B, Pitas Ioannis, Moschou V (2006). A framework for dialogue detection in movies. Proc. of Int. Workshop on Multimedia Content Representation, Classification, and Security. Istanbul. Published Version. p.371-378.
Kotti M, Gustavo L, Martins P.M, Benetos E, Cardoso J.S, Kotropoulos Konstantinos (2006). Automatic speaker segmentation using multiple features and distance measures: a comparison of three approaches. Proc. of 2006 IEEE Int. Conf. on Multimedia and Expo (ICME 2006). Toronto, Ontario, Canada. Published Version. p.1101-1104.
Kotti M, Benetos E, Kotropoulos Konstantinos, Martins L.G (2006). Speaker Change Detection using BIC: A comparison on two datasets. Proc. of Int. Symposium Communications, Control and Signal Processing, 2006 (ISCCSP 2006). Marrakech, Morocco. Published Version.
Ververidis D, Kotropoulos Konstantinos (2006). Fast Sequential Floating Forward Selection applied to emotional speech features estimated on DES and SUSAS data collections. Proc. of European Signal Processing Conf. (EUSIPCO 2006). Florence, Italy. Published Version.
Ziogas E, Kotropoulos Konstantinos (2006). Detection of vocal fold paralysis and edema using linear discriminant classifiers. Proc. of 4th Panhellenic Artificial Intelligence Conf. (SETN-06). Heraklion, Greece. Published Version. p.454-464.

(2005)

Conference Proceedings Article

Albu F, Kotropoulos Konstantinos, Cernekova Z, Pitas Ioannis (2005). New affine projection algorithms based on Gauss-Seidel method. Proc. of 2005 IEEE Int. Symp. Signals, Circuits, and Systems (ISSCS 2005). Iasi, Romania. Published Version. p.565-568.
Albu F, Kotropoulos Konstantinos (2005). Coordinate descent iterations in pseudo affine projection algorithm. Proc. of 2005 IEEE Int. Symp. Circuits and Systems. Kobe, Japan. Published Version. p.2283-2286.
Albu F, Kotropoulos Konstantinos (2005). Modified Gauss-Seidel affine projection algorithm for acoustic echo cancellation. Proc. of 2005 IEEE Int. Conf. Acoustics, Speech, and Signal Processing. Pennsylvania. Published Version. vol.3 p.121-124.
Almpanidis G, Kotropoulos Konstantinos (2005). Combined text and link analysis for focused crawling. Proceedings 3rd International Conference Advances in Pattern Recognition (ICAPR’2005). Bath, U.K. Published Version. vol.1 p.278-287.
Almpanidis G, Kotropoulos Konstantinos, Pitas Ioannis (2005). Focused crawling using latent semantic indexing: An application for vertical search engines. Proceedings of 2005 European Conference Digital Libraries (ECDL 2005). Vienna. Published Version.
Bassiou N, Kotropoulos Konstantinos (2005). Interpolated Distanced Bigram Language Models for Robust Word Clustering. Proc. of IEEE Int. Workshop on Nonlinear Signal and Image Processing (NSIP 2005). Sapporo, Japan. Published Version.
Benetos E, Kotti M, Kotropoulos Konstantinos, Burred J.J, Eisenberg G, Haller M, Sikora T (2005). Comparison of Subspace Analysis-Based and Statistical Model-Based Algorithms for Musical Instrument Classification. Proc. of 2nd Workshop On Immersive Communication And Broadcast Systems (ICOB 2005). Berlin. Published Version.
Cernekova Z, Kotropoulos Konstantinos(Constantine), Nikolaidis Nikolaos, Pitas Ioannis (2005). Video shot segmentation using fusion of SVD and mutual information features. Proc. of IEEE Int. Symposium on Circuits and Systems (ISCAS 2005). Kobe, Japan. Published Version. vol.4 p.3849-3852.
Rotter P, Skulimowski A, Kotropoulos Konstantinos, Pitas Ioannis (2005). Fast shape matching with the Haussdorff distance for pixel-represented objects. Proc. of MIRAGE 2005, INRIA Rocquencourt. France. Published Version.
Ververidis D, Kotropoulos Konstantinos (2005). Sequential Forward Feature Selection with Low Computational Cost. Proceedings 8th European Signal Processing Conference (EUSIPCO 2005). Antalya, Turkey. Published Version. p.1063-1066.
Ververidis D, Kotropoulos Konstantinos (2005). Emotional speech classification using gaussian mixture models and the sequential floating forward selection algorithm. Proc. of 2005 IEEE Int. Conf. on Multimedia and Expo (ICME 2005). Amsterdam. Published Version. p.1500-1503.
Ververidis D, Kotropoulos Konstantinos (2005). Emotional speech classification using Gaussian mixture models. Proc. of 2005 IEEE Int. Symposium Circuits and Systems (ISCAS 2005). Kobe, Japan. Published Version. p.2871-2874.

(2004)

Journal Article

Georgakis A, Kotropoulos Konstantinos(Constantine), Xafopoulos A, Pitas Ioannis (2004). Marginal Median WEBSOM for Information Organization and Retrieval. Neural Networks. vol.17 no.3 p.365-377.
Xafopoulos A, Kotropoulos Konstantinos, Almpanidis G, Pitas Ioannis (2004). Language identification in web documents using discrete HMMs. Pattern Recognition. Published Version. vol.37 no.3 p.583-594.

Conference Proceedings Article

Kyperountas M, Cernekova Z, Kotropoulos Konstantinos(Constantine), Gavrielides M. A, Pitas Ioannis (2004). Scene Change Detection Using AudiovisualCues. Proceedings Norwegian Conference Image Processing and Pattern Recognition (NOBIM’2004). Stavanger, Norway.
Kyperountas M, Cernekova Z, Kotropoulos Konstantinos(Constantine), Gavrielides M. A, Pitas Ioannis (2004). Audio PCA in a Novel Multimedia Scheme for Scene Change Detection. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP’2004). Montreal, Canada. vol.4 p.353-356.
Laftsidis C, Kotropoulos Konstantinos, Pitas Ioannis (2004). MPEG-4 compliant reproduction of face animation created in MAYA. Proc. of 2004 IEEE Int. Conf. Multimedia and Expo (ICME '04). Taipei, Taiwan. Published Version. p.125-128.
Marinaki M, Kotropoulos Konstantinos, Pitas Ioannis, Maglaveras N (2004). Automatic detection of vocal fold paralysis and edema. Proc. of 8th Int. Conf. Spoken Language Processing (INTERSPEECH 2004). Jeju, Korea. Published Version. p.537-540.
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. Spain. Published Version.
Rispoli R, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2004). Towards a New Architecture for Computerized Greek Speech Phonetic Alignment. Proceedings of the 24th Annual Workshop Linguistics. Thessaloniki, Greece.
Rispoli R, Kotropoulos C, Pitas I (2004). Searching Relevant Syllable Context by Clustering for Alignment in Modern Greek Speech. Proceedings IEEE International Conference Multimedia and Expo (ICME’2004). Taipei, Taiwan. p.1779-1782.
Ververidis D, Kotropoulos Konstantinos (2004). Automatic Speech Classification to five emotional states based on gender information. Proc. of 12th European Signal Processing Conf. (EUSIPCO '04). Vienna, Austria. Published Version.
Ververidis D, Kotropoulos Konstantinos, Pitas Ioannis (2004). Automatic emotional speech classification. Proceedings IEEE International Conference Acoustics, Speech, and Signal Processing (ICASSP’2004). Montreal, Canada. Published Version. vol.1 p.593-596.

(2003)

Journal Article

Kotropoulos Konstantinos, Pitas Ioannis (2003). Segmentation of ultrasonic images using Support Vector Machines. Pattern Recognition Letters. Published Version. vol.24 no.4-5 p.715-727.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis, Petropulu A (2003). Ultrasonic Image Processing and Analysis. Pattern Recognition Letters (Special Issue). vol.24 no.4-5 p.633-635.

Book Chapter

Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2003). Self-Organizing Maps and Their Applications in Image Processing, Information Organization, and Retrieval. Nonlinear Signal and Image Processing. editors Barner Κ. Ε., Arce G. R. CRC Press. p.387-444.

Conference Proceedings Article

Buciu I, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2003). ICA and Gabor Representation for Facial Expression Recognition. Proceedings IEEE International Conference Image Processing (ICIP’2003). Barcelona, Spain. vol.2 p.855-858.
Cernekova Z, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2003). Video Shot Segmentation using Singular Value Decomposition. Proceedings 4th European Workshop Image Analysis for Multimedia Interactive Services (WIAMIS’2003). London, England. p.181-184.
Cernekova Z, Kotropoulos Konstantinos, Pitas Ioannis (2003). Video Shot Segmentation using Singular Value Decomposition. Proceedings IEEE International Conference Acoustics, Speech, and Signal Processing (ICASP’2003), also in Proceedings IEEE Multimedia and Exp, pp.301-304, Baltimore, MD, 2003). Hong-Kong. Published Version. vol.3 p.181-184.
Georgakis A, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2003). A Combination of R-Estimates and Wilcoxon Test for Document Organization and Retrieval. Proceedings IEEE-EURASIP Workshop Nonlinear Signal and Image Processing. Grado, Italy.
Kotropoulos Konstantinos(Constantine), Fazekas A, Pitas Ioannis (2003). Fast Multiscale Mathematical Morphology for Frontal Face Authentication. Proceedings of the IEEE-EURASIP Workshop Nonlinear Signal and Image Processing. Grado, Italy.
Kovasznai G, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2003). A Novel Universal Language for Configurating Dialogue Systems. Proceedings of the 9th Panhellenic Informatics Conference. Thessaloniki, Greece. p.36-45.
Kovasznai G, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2003). CAML - A Universal Configuration Language for Dialogue Systems. Database and Expert Systems Applications : 14th International Conference on Database and Expert Systems Applications (DEXA’2003). Proceedings. Prague, Czech Republic. Vol. 2736 p.896-906.
Kovasznai G, Kotropoulos Konstantinos, Pitas Ioannis (2003). Partly specified priority patterns in natural language parsing within dialog systems. Proceedings 1st International Workshop on Interactive Rich Media Content Production (RichMedia’2003). Lausanne, Switzerland. Published Version. p.161-168.
Laftsidis C, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2003). MPEG-4 Compliant Information Extraction from an Animated Face in Maya. Proceedings 1st International Workshop on Interactive Rich Media Content Production (RichMedia’2003). Lausanne, Switzerland. p.131-137.
Ververidis D, Kotropoulos C (2003). A State-of-the Art Review on Emotional Speech Databases. Proceedings 1st International Workshop on Interactive Rich Media Content Production (RichMedia’2003). Lausanne, Switzerland. p.109-119.
Ververidis D, Kotropoulos Konstantinos (2003). A State of the Art Review on Emotional Speech Databases. Proc. of 1st Richmedia Conf., Laussane. Switzerland. Published Version.
Ververidis D, Kotropoulos Konstantinos (2003). A review of emotional speech databases. Proc. of 9th Panhellenic Conf. on Informatics (PCI `03). Thessaloniki, Greece. Published Version.

(2002)

Journal Article

Gordan Michaela, Kotropoulos Konstantinos, Pitas Ioannis (2002). A support vector machine-based dynamic network for visual speech recognition applications. Eurasip Journal on Applied Signal Processing. Published Version. no.11 p.1248-1259.
Kotropoulos Konstantinos, Pappas Michalis, Pitas Ioannis (2002). Sorting networks using Lp mean comparators for signal processing applications. IEEE Transactions on Signal Processing. Published Version. vol.50 no.11 p.2716 - 2729.
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

Buciu I, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2002). Face Detection by Using Independent Component Decomposition. Proceedings 4th Workshop on Dynamic Perception. Bochum, Germany. p.247-252.
Buciu I, Kotropoulos Konstantinos, Pitas Ioannis (2002). Face detection by using Independent Component Decomposition. Proceedings on Dynamic Perception. Rochester, N.Y., USA. Published Version.
Buciu I, Kotropoulos Konstantinos, Pitas Ioannis (2002). On the stability of support vector machines for face detection. Proceedings IEEE International Conference Image Processing (ICIP’2002). N.Y. Published Version. vol.3 p.121-124.
Dugelay J.L, Junqua J.L, Kotropoulos Konstantinos, Kuhn R, Perronnin F, Pitas Ioannis (2002). Recent advances in biometric person authentication. Proceedings IEEE International Conference Acoustics, Speech, and Signal Processing (ICASSP 2002). Florida. Published Version. vol.4 p.4060-4063.
Fazekas A, Buciu I, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2002). Support Vector Machines for Face Detection. Proceedings Hungarian Conference Pattern Recognition. p.279-291.
Georgakis A, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2002). A SOM Variant Based on the Wilcoxon Test for Document Organization and Retrieval. Artificial Neural Networks — ICANN 2002 : International Conference, Madrid, Spain, August 28–30, 2002. Proceedings. Madrid, Spain. p.993-998.
Gordan M, Kotropoulos Konstantinos, Pitas Ioannis (2002). Application of support vector machines classifiers to visual speech recognition. Proceedings IEEE International Conference Image Processing (ICIP 2002). N.Y. Published Version. vol.3 p.129-132.
Gordan M, Kotropoulos Konstantinos, Pitas Ioannis (2002). Visual speech recognition using support vector machines. Proceedings 14th International Conference Digital Signal Processing (DSP 2002). Santorini, Greece. Published Version. vol.2 p.1093-1096.
Gordan M, Kotropoulos Konstantinos, Georgakis A, Pitas Ioannis (2002). A new fuzzy C-means based segmentation strategy. Applications to lip region identification. Proceedings of A&QT-R 2002(THETA 13) 2002 IEEE TTTC Int. Conf. on Automation, Quality and Testing, Robotics. Cluj-Napoca, Romania. Published Version.
Gordan M, Kotropoulos Konstantinos, Pitas Ioannis (2002). A Temporal network of support vector machine classifiers for the recognition of visual speech. Methods and Applications of Artificial Intelligence. Thessaloniki. Vol. 2308 p. 355-365.
Kotropoulos Konstantinos, Pitas Ioannis (2002). Signal detection using support vector machines in the presence of ultrasonic speckle. Proceedings SPIE 4687, Medical Imaging 2002: Ultrasonic Imaging and Signal Processing. N.Y. Published Version. vol.SPIE p.304-315.
Loutas E, Kotropoulos Konstantinos(Constantine), Bassiou N, Pitas Ioannis (2002). Frontal Face Detection Algorithms Based on Support Vector Machines and Maximum Likelihood. Proceedings COST-275 Workshop: the Advent of Biometric on the Internet. Rome, Italy. p.61-64.
Loutas E, Kotropoulos Konstantinos, Bassiou N, Pitas Ioannis (2002). Frontal face detection algorithms based on support vector machines and maximum likehood. Proc. of COST-275 Workshop: The Advent of Biometric over the Internet. Rome. Published Version. 2002.
Xafopoulos A, Kotropoulos Konstantinos, Pitas Ioannis (2002). Language identification of web documents using discrete HMMs. Proc. of the 2nd Hellenic Conf. on Artificial Intelligence (SETN '02). Thessaloniki, Greece. Published Version. p.269-280.

(2001)

(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.

Book Chapter

Kotropoulos Konstantinos(Constantine), Pappas M, Pitas Ioannis (2000). Nonlinear Mean Filters and their Applications in Image Filtering and Edge Detection. Nonlinear Image Processing. editors Mitra S., Sicuranza G. Academic Press. p.133-165.

Conference Proceedings Article

Kotropoulos Konstantinos(Constantine), Pitas Ioannis (2000). On the Theoretical Properties of Lp Mean Comparators. Tampere, Finland. p.2405-2408.
Matas J, Hamouz M, Johsson K, Kittler J, Li Y, Kotropoulos Konstantinos, Tefas Anastasios, Pitas Ioannis, Tan T, Yan H, Smeraldi F, Bigun J, Capdevielle N, Gerstner W, Ben-Yacoub S, Abdelaoued Y, Mayoraz E (2000). Comparison of face verification results on the XM2VTS database. Proc. of 2000 Int. Conf. on Pattern Recognition. Spain. Published Version. vol.4 p.858-863.
Politis D, Kotropoulos C (2000). Quantitative Description of Qualitative Phenomena in Vocal Traditional. Proceedings 2nd Symposium on Computer Music. Corfu, Greece. p.79-84.
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). Vancouver, Canada. Published Version. vol.1 p.29-32.
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). Instanbul, Turkey. Published Version. vol.4 p.2409-2412.
Tefas Anastasios, Kotropoulos Konstantinos, Pitas Ioannis (2000). Face authentication based on mathematical morphology. Proc. of European Workshop "Frontieres of Mathematical Morphology". Strasbourg, France. Published Version.

(1999)

Journal Article

Kotropoulos Konstantinos, Pitas Ioannis (1999). Adaptive Multichannel Marginal L-filters. Optical Engineering. Published Version. vol.38 no.4 p.688-704.

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. 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. Florence - Italy. vol. 2 p. 934 - 938.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1999). Intelligence in modern communication systems. International COST 254 Workshop on Intelligent Communication Technologies and Applications, with Emphasis on Mobile Communications May 5-7, 1999, Neuchâtel, Switzerland: Proceedings. Neuchatel - Switzerland. p.1-12.
Richard G, Menguy Y, Guis I, Suaudeau N, Boudy J, Lockwood P, Fernandez C, Fernandez F, Kotropoulos Konstantinos(Constantine), Tefas Anastasios, Pitas Ioannis, Heimgartner R, Ryser P, Beumier C, Pigeon S, Matas G, Kittler J, Bigun J, Abdeljaoued Y, Meurville E, Besacier L, Maitre G, Luettin J, Ben-Yacoub S, Ruiz B (1999). Multi Modal Verification for Teleservices and Security Applications(M2VTS). IEEE International Conference on Multimedia Computing and Systems,. 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). 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). Arizona, USA. Published Version.

(1998)

Journal Article

Kotropoulos Konstantinos, Nikolaidis Nikolaos, Bors A.G, Pitas Ioannis (1998). Robust and adaptive techniques in self-organizing neural networks. International Journal of Computer Mathematics. Published Version. vol.67 no.1 & 2 p.183 - 200.
Tsekeridou S, Kotropoulos Konstantinos, Pitas Ioannis (1998). Adaptive order statistic filters for the removal of noise from corrupted images. Optical Engineering -Bellingham- International Society for Optical Engineering. Published Version. vol.37 no.10 p.2798-2816.

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). 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). Nara, Japan. Published Version.
Tsekeridou S, Kotropoulos Konstantinos, Pitas Ioannis (1998). Morphological Signal Adaptive Median Filter for Still Image and Image Sequence Filtering. Proc. of IEEE Int. Symposium on Circuits and Systems (ISCAS'98). California, USA. Published Version.

(1997)

Conference Proceedings Article

Kofidis E, Theodoridis S, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1997). Application of Neural Networks and Order Statistic Filters to Speckle Noise Reduction in Remote Sensing Imaging. Proceedings of Concerted Action COMPARES (Connectionist Methods for Pre-Processing and Analysis of Remote Sensing Data). Kanellopoulos, I., Wilkinson, G.G., Roli, F., Austin, J. (Eds.). p.47-56.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1997). Face Authentication based on Morphological Grid Matching. International Conference on Image Processing, 1997. Proceedings. Santa Barbara, California - USA. vol.1 p. 105 - 108.
Kotropoulos Konstantinos(Constantine), Gabrani M, Pitas Ioannis (1997). Adaptive Multichannel {L}-filters with Structural Constraints. IEEE Workshop on Nonlinear Signal and Image Processing.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1997). Face Verification based on Morphological Dynamic Link Architecture. Proceedings of the IEEE/EURASIP Workshop on Nonlinear Signal and Image Processing. Michigan - USA.
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. Dublin - Ireland. vol. 2 p. 794 - 798.
Kotropoulos Konstantinos(Constantine), GabraniM, Pitas Ioannis (1997). Constrained Adaptive Multichannel {L}-filters. 13th International Conference on Digital Signal Processing Proceedings. Santorini - Greece. vol.1 p. 279 - 282.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1997). Rule-based face detection in frontal views. 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing. Munich - Germany. vol.4 p. 2537 - 2540.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis, FischerS, Duc B (1997). Face authentication using Morphological Dynamic Link Architecture. Audio- and Video-based Biometric Person Authentication : First International Conference, AVBPA'97 Crans-Montana, Switzerland, March 12–14, 1997 Proceedings. Josef Bigün, Gérard Chollet, Gunilla Borgefors (eds). Crans-Montana - Switzerland.
Nikolaidis Athanasios, Kotropoulos Konstantinos, Pitas Ioannis (1997). Facial feature extraction using Adaptive Hough Transform, template matching and active contour models. Proc. of 13th Int. Conf. on Digital Signal Processing (DSP'97). Santorini, Greece. Published Version.
Pitas Ioannis, Kotropoulos Konstantinos(Constantine), Nikolaidis N, Bors A (1997). Robust and Adaptive Techniques in Self-Organising Neural Networks. Nonlinear Analysis: Theory, Methods & Applications : Proceedings of the 2nd World Congress of Nonlinear Analysts. Athens, Greece. Vol. 30 no. 8 p. 4517-4528.

(1996)

Journal Article

Kofidis E, Theodoridis S, Kotropoulos Konstantinos, Pitas Ioannis (1996). Nonlinear adaptive filters for speckle suppression in ultrasonic images. Signal Processing. Published Version. vol.52 no.3 p.357-372.
Kotropoulos Konstantinos, Pitas Ioannis (1996). Adaptive LMS L-filters for Noise Suppression in Images. IEEE Transactions on Image Processing. Published Version. vol.5 no.12 p.1596 - 1609.
Pitas Ioannis, Kotropoulos Konstantinos, Nikolaidis Nikolaos, Yang R, Gabbouj M (1996). Order statistics learning vector quantizer. IEEE Transactions on Image Processing. Published Version. vol.5 no.6 p.1048 - 1053.

Book Chapter

Pitas Ioannis, Kotropoulos Konstantinos(Constantine), VenetsanopoulosA.N (1996). Knowledge-based signal/image processing for geophysical interpretation. Control and Dynamic Systems.

Conference Proceedings Article

Kotropoulos Konstantinos(Constantine), Pitas Ioannis, Gabrani M (1996). Multichannel adaptive L-filters in color image processing. International Conference on Image Processing. Lausanne - Switzerland. vol.1 p. 989 - 992.
Tsekeridou S, Kotropoulos Konstantinos, Pitas Ioannis (1996). Morphological Signal Adaptive Median Filter for Noise Removal. Proc. of 1996 Int. Conf. on Electronics, Circuits and Systems (ICECS'96). Rodos, Greece. Published Version.

(1994)

Journal Article

Kotropoulos Konstantinos, Pitas Ioannis (1994). Multichannel L filters based on marginal data ordering. IEEE Transactions on Signal Processing. Published Version. vol.42 no.10 p.2581 - 2595.
Kotropoulos Konstantinos, Magnisalis X, Pitas Ioannis, Strintzis Michail-Gerasimos (1994). Nonlinear ultrasonic image processing based on signal-adaptive filters and self-organizing neural networks. IEEE Transactions on Image Processing. Published Version. vol.3 no.1 p.65 - 77.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1994). Multichannel L-filters based on marginal data ordering. IEEE Transactions on Signal Processing. vol.42 no.10.

Book Chapter

Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1994). Adaptive nonlinear filters for digital signal/image processing. Control and Dynamic Systems.

Conference Proceedings Article

Gabrani M, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1994). Cellular adaptive LMS L-filters for noise suppression in still images and image sequences. Proceedings of the IEEE International Conference on Image Processing (ICIP '94), Austin, Texas, U.S.A, 1994. Austin, Texas - U.S.A. p. I-358-I-361.
Kofidis E, Theodoridis S, Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1994). Segmentation-based L-filtering of speckle-noise in ultrasonic images. Proceedings of the SPIE Symposium on Electronic Imaging Science and Technology: Nonlinear Image Processing V, California, U.S.A, vol. 2180, February, 1994. California - U.S.A.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1994). Error-analysis of recursive algorithms for computing the correlation matrix of the order statistics. Proceedings of the IEEE Winter Workshop on Nonlinear Digital Signal Processing, Tampere, Finland, 1993. Tampere - Finland. p. 6.2-1.1-6.2-1.6.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1994). Multichannel L-filters based on M-ordering. Proceedings of the IEEE Winter Workshop on Nonlinear Digital Signal Processing, Finland, 1994. - Finland. p. 1.2-3.1--1.2-3.6.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis, Maglara A (1994). Voronoi Tessellation and Delauney Triangulation using Euclidean Disk Growing in Z^2. Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, Minneapolis, U.S.A, , April, 1994. Minneapolis - U.S.A. p. 29-32.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1994). Adaptive LMS L-filters for smoothing noisy images. Proceedings of the International Conference on Pattern Recognition (ICPR' 94), Jerusalem, Israel, 1994. Jerusalem - Israel. p. 181-183.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis, Gabbouj M (1994). Marginal median Learning Vector Quantizer. Proceedings of the European Signal Processing Conf. (EUSIPCO '94), Edinburg, U.K., 1994. Edinburg - U.K. p. 1496-1499.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1994). Multichannel L-filter design based on marginal data ordering. Proceedings of the IEEE International Conference on Acoustics,Speech and Signal Processing, Adelaide, Australia. Adelaide - Australia. p. III-93--III-96.
Pitas Ioannis, Kotropoulos Konstantinos, Nikolaidis Nikolaos, Yang R, Gabbouj M (1994). A class of order statistics Learning Vector Quantizers. Proc. of the IEEE Int. Symposium on Circuits and Systems (ISCAS 94). London, U.K. Published Version.

(1993)

Conference Proceedings Article

Kotropoulos Konstantinos (Constantine), Magnisalis X, Pitas Ioannis, Strintzis M.G (1993). Signal-adaptive maximum likelihood filtering of ultrasonic speckle. Proceedings of the European Conference on Circuit Theory and Design (ECCTD '93), Switzerland, , 1993. - Switzerland. p. 1635-1638.
Kotropoulos Konstantinos (Constantine), Pitas Ioannis, Magnisalis X, Strintzis M.G (1993). A variant of Learning Vector Quantizer based on the L_2 mean for segmentation of ultrasonic images. Proceedings of the IEEE International Symposium on Circuits and Systems, U.S.A, 1993. Chicago, Illinois, USA. p. 679-682.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1993). Split-merge Learning Vector Quantizer algorithm. Proceedings of the European Conference on Circuit Theory and Design (ECCTD '93), Switzerland, 1993. - Switzerland. p. 465-468.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1993). A variant of Learning Vector Quantizer based on split-merge statistical tests. Proceedings of Lecture Notes in Computer Science:Computer Analysis of Images and Patterns,1993. D. Chetverikov and W. G. Kropatsch (eds.). p. 822-829.

(1992)

Journal Article

Kotropoulos Konstantinos, Pitas Ioannis (1992). Optimum nonlinear signal detection and estimation in the presence of ultrasonic speckle. Ultrasonic Imaging. Published Version. vol.14 no.3 p.249-275.
Kotropoulos Konstantinos, Pitas Ioannis (1992). Constrained adaptive LMS L-filters. Signal Processing. Published Version. vol.26 no.3 p.335-358.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1992). Constained adaptive LMS L-filters. Signal Processing. vol.26 no.3.
Pitas Ioannis, Kotropoulos Konstantinos (1992). A texture-based approach to the segmentation of seismic images. Pattern Recognition. Published Version. vol.25 no.9 p.929-945.

Conference Proceedings Article

Kotropoulos Konstantinos(Constantine), Auge E, Pitas Ioannis (1992). Two layer Learning Vector Quantizer for color image quantization. Proceedings of Signal Processing VI: Theories and Applications. p.1177-1180.
Strintzis Michail-Gerasimos, Magnisalis X, Kotropoulos Konstantinos(Constantine), Pitas Ioannis, Magklaveras Nikolaos (1992). Maximum likelihood signal-adaptive filtering of speckle in ultrasound B-mode images. Proceedings of IEEE International Conference on Engineering in Medicine and Biology Society. Paris - France. p. 1870-1871.

(1991)

Conference Proceedings Article

Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1991). Constained adaptive LMS L-filters. 1991 International Conference on Acoustics, Speech, and Signal Processing ( ICASSP-91),. Toronto, Ont. - Canada. vol.3 p.1665 - 1668.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1991). Nonlinear filtering of speckle noise in ultrasonic images. Proceedings of the Computer Analysis of Images and Patterns Conference (CAIP '91), Germany, 1991. - Germany. p. 118-123.
Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1991). Design of the constrained adaptive LMS L-filters. Proceedings of the IEEE Mediterranean Electrotechnical Conference (MELECON '91), Ljubliana, Slovenia, May, 1991. p. 379-382.
Magnisalis X, Kotropoulos Konstantinos(Constantine), Pitas Ioannis, Strintzis M.G (1991). Use of fractal dimension in signal-adaptive filters for speckle reduction in ultrasound B-mode images. Proceedings of the 10th International Congress for Medical Informatics (MIE '91), Austria, 1991. - Austria. p. 550-554.
Pitas Ioannis, Maglara A, Kotropoulos Konstantinos(Constantine) (1991). Morphological Voronoi tessellation and Delauney triangulation. Proceedings of Computer Analysis of Images and Patterns Conference (CAIP '91). - Germany.

(1990)

Conference Proceedings Article

Kotropoulos Konstantinos(Constantine), Pitas Ioannis (1990). Texture description rules for geophysical image segmentation. Proceedings of Signal Processing V: Theories and Applications, 1990. p. 597-600.

(1989)

Conference Proceedings Article

Kotropoulos Konstantinos(Constantine), Pitas Ioannis, Tyraskis P (1989). Segmentation of seismic images. Proceedings of the 1st Hellenic Conference Geophysics, Greece, 1989 (in Greek). - Greece. p.112-122.
Pitas Ioannis, Kotropoulos Konstantinos (Constantine) (1989). Texture analysis and segmentation of seismic images. Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, U.K, 1989. - U.K. p. 1337-1340.

Journal Article

Panagakis Yannis, Kotropoulos Konstantinos(Constantine). Telephone handset identification by collaborative representations.

Conference Proceedings Article

Kotti M, Benetos E, Kotropoulos C. Automatic Speaker Change Detection with Bayesian Information Criterion Using MPEG-7 Features and a Fusion Scheme. Proceedings IEEE International Symposium Circuits and Systems (ISCAS’2006). Kos, Greece.

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