Important Events

User login

Feeds

Syndicate content

Contact details

Contact WCL

Tel: +30 2610 996496
+30 2610 996480
Fax: +30 2610 997336
+30 2610 991855
Email: raniadou [AT] upatras.gr
 
 
Electrical and Computer Enginnering Department
 
University of Patras
 

Nikos Fakotakis

User Profile Photo
Director of the Communication and Information Technology Division, director of the Wire Communications Laboratory (WCL), and Head of the Artificial Intelligence Group
Professor
Artificial Intelligence Group
Wire Communications Laboratory
Electrical and Computer Engineering Dept.
University of Patras

Contact Details

Tel: 
+30 2610 996496

Wire Communications Laboratory
Department of Electrical and Computer Engineering
University of Patras
GR - 26 500, Rion, Patras, Greece

About

Introduction: 
Prof. Nikos Fakotakis received his B.Sc. degree from the University of London (UK) in Electronics in 1978, M.Sc. degree in Electronics from the University of Wales (UK), and his Ph.D. degree in Speech Processing from the University of Patras, (Greece), in 1986. From 1986 to 1992 he was a lecturer in the Electrical and Computer Engineering Dept. of the University of Patras, from 1992 to 1999 an Assistant Professor, from 2000 to 2003 an Associate Professor, and since 2003 he is a full Professor in the area of Speech and Natural Language Processing.
 
Prof. Fakotakis is director of the Communication and Information Technology Division, director of the Wire Communications Laboratory (WCL), and Head of the Artificial Intelligence Group. He is author of over 300 publications in the area of Speech and Natural Language Engineering, and Artificial Intelligence. His current research interests include AI, Speech Recognition/Understanding, Speaker Recognition, User Modeling, Spoken Dialogue Processing, Natural Language Processing etc.
 
Prof. Fakotakis is a member of the Executive Board of ELSNET (European Language and Speech Network of Excellence), Editor-in-Chief of the "European Student Journal on Language and Speech", WEB-SLS. He is also a member of IEEE, TEE, EURASIP, ESCA.

Qualifications: 
1978, University of London (UK), B.Sc. in Electronics
University of Wales (UK), M.Sc. in Electronics
1986, University of Patras (Greece), Ph.D. degree in Speech Processing

Research

Research Interests: 
Speech Technology
Digital Signal Processing
Artificial Intelligence
Publications: 

[1]. T. Kostoulas, I. Mporas, T. Ganchev, N. Katsaounos, A. Lazaridis, S. Ntalampiras, N. Fakotakis: LOGOS: A Multimodal Dialogue System for Controlling Smart Appliances, accepted for presentation at the 1st International Symposium on Intelligent Interactive Multimedia Systems and Services, KES-IIMSS-2008, Piraeus, Greece, July 9-11, 2008.. (Conference)

[2]. T. Kostoulas, I. Mporas, T. Ganchev, N. Fakotakis: The Effect of Emotional Speech on a Smart-Home Application, 21st International Conference on Industrial, Engineering & Other Applications of Applied Intelligent Systems, IEA-AIE-2008. (Conference)

[3]. S. Ntalampiras, I. Potamitis, T. Ganchev, N. Fakotakis: Audio Database in Support of Potential Threat and Crisis Situation Management, accepted for presentation at LREC’2008, Morocco, May 28-30, 2008.. (Conference)

[4]. T. Winkler, T. Kostoulas, R. Adderley, C. Bonkowski, T. Ganchev, J. Kohler, N. Fakotakis: The MoveOn Motorcycle Speech Corpus, accepted for presentation at LREC’2008, Morocco, May 28-30, 2008.. (Conference)

[5]. T. Kostoulas, T. Ganchev, I. Mporas, N. Fakotakis: A Real-World Emotional Speech Corpus for Modern Greek, accepted for presentation at LREC’2008, Morocco, May 28-30, 2008. (Conference)

[6]. I. Mporas, T. Ganchev, N. Fakotakis: A Hybrid Architecture for Automatic Segmentation of Speech Waveforms, Proc. of the ICASSP’2008, Las Vegas, USA, March 30 - April 4, 2008.. (Conference)

[7]. Siafarikas M., Mporas I., Ganchev T., Fakotakis N.: Speech Recognition Using Wavelet Packet Features, to appear in Journal of Wavelet Theory and Applications, ISSN 0973-6336, 2008.. (Journal)

[8]. T. Ganchev, K.E. Parsopoulos, M.N. Vrahatis, N. Fakotakis: Partially Connected Locally Recurrent Probabilistic Neural Networks, to appear in Recurrent Neural Networks, ISBN 978-3-902613-28-8, 2008.. (Book)

[9]. A. Lazaridis, T. Kostoulas, I. Mporas, T. Ganchev, N. Katsaounos, S. Ntalampiras, N. Fakotakis: Human Evaluation of the LOGOS Multimodal Dialogue System, accepted for presentation in PETRA 2008, 1st International Conference on PErvasive Technologies Related to Assistive Environments, Athens, Greece, July 16 - 19, 2008. (Conference)

[10]. T. Kostoulas, T. Ganchev, I. Mporas, N. Fakotakis: Detection of Negative Emotional States in Real-World Scenario, Proc. of the ICTAI’2007, October 29-31, 2007, Patras, Greece, pp.502–509. (Conference)

[11]. T. Ganchev, D.K. Tasoulis, M.N. Vrahatis, N. Fakotakis: Generalized Locally Recurrent Probabilistic Neural Networks with application to Text-Independent Speaker Verification , Neurocomputing, vol. 70, 7-9 (Mar. 2007), pp. 1424–1438. DOI= http://dx.doi.org/10.1016/j.neucom.2006.05.012. (Journal)

[12]. I. Mporas, T. Ganchev, M. Siafarikas, N.Fakotakis: Comparison of Speech Features on the Speech Recognition Task, Journal of Computer Science, ISSN 1549-3636, Science Publications New York, USA, vol.3, no.8, 2007, pp.608–616. (Journal)

[13]. T. Ganchev, I. Potamitis, N. Fakotakis: Acoustic Monitoring of Singing Insects, Proc. of the ICASSP’2007. Vol.4, pp.721–724. (Conference)

[14]. I. Mporas, T. Ganchev, E. Kotinas, N. Fakotakis: Examining the Influence of Speech Frame Size and Number of Cepstral Coefficients on the Speech Recognition Performance, Proc. of the SPECOM'2007, October 15-18, 2007, Moscow, Russia, pp.134–139. (Conference)

[15]. M. Siafarikas, T. Ganchev, N. Fakotakis: Wavelet Packet Bases for Speaker Recognition, Proc. of the ICTAI’2007, October 29-31, 2007, Patras, Greece, pp.514–517. (Conference)

[16]. T. Kostoulas, T. Ganchev, N. Fakotakis: Study on speaker-independent emotion recognition from speech on real-world data, Cost2102 Workshop, LNCS, 2007. (Conference)

[17]. T. Ganchev, I. Potamitis, N. Fakotakis: Automatic Acoustic Identification Of Crickets And Cicadas, Proc. of the ISSPA’2007, February 12-15. 2007. (Conference)

[18]. P. Zervas, T. Kostoulas, N. Fakotakis: Evaluation of a Greek Prosody Speech Corpus for Emotion Recognition, Acoustics 2006, Heraklion, Crete, Greece, September 18-19, pp. 77-82, 2006. (Conference)

[19]. T. Ganchev, M. Siafarikas and N. Fakotakis: Evaluation of speech parameterization methods for speaker recognition, Acoustics 2006, Sept 18-19, 2006. pp.105-110. (Conference)

[20]. T. Kostoulas, I. Mporas, N. Fakotakis: Emotion Recognition in Noise Environments, Acoustics 2006, Heraklion, Crete, Greece, September 18-19, pp. 97-104, 2006. (Conference)

[21]. T. Kostoulas and N.Fakotakis: A Speaker Dependent Emotion Recognition Framework, CSNDSP Fifth International Symposium, pp. 305-309, Patras, July 19-21, 2006. (Conference)

[22]. I. Potamitis, T. Ganchev, N. Fakotakis: Automatic Acoustic Identification of Insects Inspired by the Speaker Recognition Paradigm, Interspeech2006 -- ICSLP, Pittsburgh, PA, USA, Sept 17-21, 2006, pp.2126-2129. (Conference)

[23]. T. Ganchev, N. Fakotakis, G. Kokkinakis: The WCL-1 System in the 2003 NIST Speaker Recognition Evaluation and 2003 NFI/TNO Forensic Speaker Recognition Evaluation , 11th International Conference Speech and Computer, SPECOM'2006, 25-29 June 2006, pp.109-114. (Conference)

[24]. P. Zervas, T. Ganchev, N. Fakotakis, G. Kokkinakis: Negative Emotional State Detection from Speech, Fifth International Symposium On Communication Systems, Networks And Digital Signal Processing, CSNDSP'06, 19-21 July, 2006. pp.310-313. (Conference)

[25]. T. Ganchev, P. Zervas, N. Fakotakis, G. Kokkinakis: Benchmarking Feature Selection Techniques on the Speaker Verification Task , Fifth International Symposium On Communication Systems, Networks And Digital Signal Processing, CSNDSP'06, 19-21 July, 2006. pp.314-318. (Conference)

[26]. I. Mporas, T. Ganchev, P. Zervas, N. Fakotakis: Recognition of Greek Phonemes using Support Vector Machines , G. Antoniou et al. (Eds.): SETN 2006, LNAI 3955, © Springer-Verlag Berlin Heidelberg 2006. pp. 290–300. (Conference)

[27]. T. Ganchev, N. Fakotakis, G. Kokkinakis: Comparative Evaluation of Various MFCC Implementations on the Speaker Verification Task , 10th International Conference on Speech and Computer, SPECOM 2005, October 17-19, 2005. Patras, Greece. Vol. 1, pp.191-194. (Conference)

[28]. M. Maragoudakis, A. Thanopoulos, K. Sgarbas and N. Fakotakis: Effective plan recognition in a weather dialogue system, IEEE Intelligent Systems. (Journal)

[29]. M. Siafarikas, T. Ganchev, N. Fakotakis, G. Kokkinakis: Overlapping Wavelet Packet Features for Speaker Verification , INTERSPEECH 2005, September 4-8, 2005. Lisbon, Portugal, pp.3121-3124. (Conference)

[30]. 27. P. Zervas, G. Xydas, N. Fakotakis, G. Kokkinakis, G. Kouroupetroglou: Experimental Evaluation of Tree-Based Algorithms for Intonational Breaks Representation, TSD 2005, 8th International Conference on Text, Speech and Dialogue, Karlovy Vary (Carlsbad), Czech Republic. Lecture Notes in Artificial Intelligence (LNCS), pp.334-341, Springer-Verlang. (Book)

[31]. I. Mporas, N. Fakotakis: Least Squares Support Vector Machine based Phoneme Recognition , SPECOM 2005, pp. 377-380, Patras, Greece, Oct. 2005. (Conference)

[32]. T. Ganchev, I. Potamitis, N. Fakotakis, G. Kokkinakis: A Model Based Approach for Robust Text-Independent Speaker Verification in Adverse Environments, Signal Processing and Pattern Recognition, AMSE Periodicals, Volume 47, Issue 3, 2004, pp. 47–66. (Journal)

[33]. T. Ganchev, D. Tasoulis, M. Vrahatis, N. Fakotakis: Generalized Locally Recurrent Probabilistic Neural Networks for Text-Independent Speaker Verification , Proc. of the ICASSP’2004 , Montreal, Quebec, Canada, May 17–21, 2004, Vol.1, pp. 41–44. (Conference)

[34]. S. Moller, J. Krebber, A. Raake, P. Smeele, M. Rajman, M. Melichar, V. Pallotta, G. Tsakou, B. Kladis, A. Vovos, J. Hoonhout, D. Schuchardt, N. Fakotakis, T. Ganchev, I. Potamitis: INSPIRE: Evaluation of a Smart-Home System for Infotainment Management and Device Control , Proc. of the LREC’2004, Lisbon, May 26-28 2004, pp.1603–1606. (Conference)

[35]. M. Siafarikas, T. Ganchev, N. Fakotakis: Wavelet Packets Based Speaker Verification , Proc of the ISCA Speaker and Language Recognition Workshop – Odyssey’2004, Toledo, Spain, May 31-June 3, 2004, pp. 257–264. (Conference)

[36]. T. Ganchev, M. Siafarikas, N. Fakotakis: Speaker Verification Based on Wavelet Packets , 7th International Conference on Text Speech and Dialogue (TSD 2004), Lecture Notes in Computer Science, Springer-Verlag, Heidelberg, ISSN: 0302-9743, vol. LNAI 3206/2004, Sept. 2004, pp. 299–306. (Book)

[37]. M. Maragoudakis, T. Ganchev, N. Fakotakis: Bayesian Reinforcement for a Probabilistic Neural Net Part-Of-Speech Tagger , 7th International Conference on Text Speech and Dialogue (TSD 2004), Brno, Czech Republic, September 8-11, 2004. Lecture Notes in Computer Science, Springer-Verlag, Heidelberg, ISSN: 0302-9743, vol. LNAI 3206/2004, Sept. 2004, pp. 137–145. (Book)

[38]. M. Siafarikas, T. Ganchev, N. Fakotakis: Objective Wavelet Packet Features for Speaker Verification , Proc of the INTERSPEECH 2004 - ICSLP, Oct 4- 8 , Jeju, Korea, 2004, pp. 2365–2368. (Conference)

[39]. T. Ganchev, I. Potamitis, N. Fakotakis, G. Kokkinakis: Text-Independent Speaker Verification for Real Fast-Varying Noisy Environments , International Journal of Speech Technology, ISSN 1381-2416, Kluwer Academic Publishers, (http://www.kluweronline.com/issn/1381-2416), Volume 7, Issue 4, October 2004, pp. 281–292. (Journal)

[40]. K.L. Kermanidis, M. Maragoudakis, N. Fakotakis and G. Kokkinakis: Learning Greek Verb Complements: Addressing the Class Imbalance, 20th International Conference on Computational Linguistics, COLING 2004, pp. 1065-1071 Geneva, Switzerland. (Conference)

[41]. M. Siafarikas, T. Ganchev, N. Fakotakis: Speaker Verification Reinforced by Objective Wavelet Packets-based Speech Parameterization , GESTS International Transaction on Speech Science and Engineering, ISSN 1738-4737, (http://www.gests.org), Volume 1, Issue 2, December 2004, pp. 60–71. (Journal)

[42]. T. Ganchev, N. Fakotakis, G. Kokkinakis: The WCL-1 System in the NIST Year 2004 Speaker Recognition Evaluation , 2004 NIST Speaker Recognition Evaluation Workshop, June 3-4, 2004, Toledo, Spain. (Conference)

[43]. M. Maragoudakis, N. Fakotakis: A Bayesian Network Model for Stochastic Tagging of Natural Language Texts, Journal of Applied Linguistics. (Journal)

[44]. M. Maragoudakis, K. Kermanidis, A. Tasikas, N. Fakotakis, G. Kokkinakis: Bayesian Induction of Verb Subcategorization Frames in Imbalanced Heterogeneous Data,, Journal of Quantitative Linguistics. (Journal)

[45]. M. Maragoudakis, N. Fakotakis, G. Kokkinakis: Imposing classification bias in Bayesian network learning, Pattern recognition and Image analysis. (Journal)

[46]. K.L. Kermanidis, M. Maragoudakis, N. Fakotakis and G. Kokkinakis: Learning Greek Verb Complements: Addressing the Class Imbalance, 20th International Conference on Computational Linguistics, COLING 2004, Geneva, Switzerland. (Conference)

[47]. M. Maragoudakis, N. Fakotakis: Bayesian Semantics Incorporation to Web Content for Natural Language Information Retrieval, LREC 2004, 4th International Conference on Language Resources and Evaluation, pp. 785-788, Lisbon, Portugal. (Conference)

[48]. M. Maragoudakis, N. Fakotakis, G. Kokkinakis: A Bayesian Model for Shallow Syntactic Parsing of Natural Language Texts, LREC 2004, 4th International Conference on Language Resources and Evaluation, pp. 847-850, Lisbon, Portugal. (Conference)

[49]. M. Maragoudakis, A. Thanopoulos, K. Sgarbas, N. Fakotakis: Domain Knowledge Acquisition and plan recognition by probabilistic reasoning, Int. Journal of Artificial Intelligence Tools. (Journal)

[50]. T. Ganchev, D. Tasoulis, M. Vrahatis, N. Fakotakis: Locally Recurrent Probabilistic Neural Networks with Application to Speaker Verification , GESTS International Transaction on Speech Science and Engineering, ISSN 1738-4737, (http://www.gests.org), Volume 1, Issue 2, December 2004, pp. 1–13. (Journal)

[51]. P. Zervas, N. Fakotakis, G. Kokkinakis: Pitch Accent prediction from ToBI annotated corpora based on Bayesian Learning, Brno, Czech Republic. Lecture Notes in Artificial Intelligence (LNCS), Springer-Verlang. (Conference)

[52]. T. Ganchev, N. Fakotakis, G. Kokkinakis: One-Speaker Detection – Limited Data: The WCL-1 System , 2003 NIST Speaker Recognition Workshop, College Park, MD, USA, June 24-25, 2003. (Conference)

[53]. M. Maragoudakis, K. Kermanidis and N. Fakotakis: A Bayesian Part-Of-Speech and Case Tagger for Modern Greek, 6th International conference of Greek linguistics (ICGL 2003), September 18-21, 2003, Rethymno, Greece. (Conference)

[54]. P. Zervas, M. Maragoudakis, N. Fakotakis and G. Kokkinakis: Bayesian Induction of intonational phrase breaks , 8th International Conference on Speech Communication and Technology (Eurospeech 2003) September 1-4, 2003, Geneva, Switzerland, pp. 113-116. (Conference)

[55]. I. Potamitis, K. Georgila, P. Zervas, N. Fakotakis, G. Kokkinakis: An Electronic Assistant for Automatic Control of Home-Appliances Using Natural Speech and Distant Microphones, In Proceedings of IASTED International Conference on Signal Processing, Pattern Recognition and Applications, pp. 191-195, Rhodes, Greece, June 30-July 02, 2003. (Conference)

[56]. M. Maragoudakis, A. Thanopoulos and N. Fakotakis: User Modeling and Plan Recognition under Conditions of Uncertainty , 6th International Conference on Text, Speech and Dialogue (TSD 2003) September 8-11, 2003, Ceske Budejovice, Czech Republic. Lecture Notes in Artificial Intelligence (LNAI), Matousek and Mautner (Eds.), pp 372-379, Springer Verlang. (Book)

[57]. M. Maragoudakis, P. Zervas, N. Fakotakis and G. Kokkinakis: A Data-Driven Framework for Intonational Phrase Break Prediction , 6th International Conference on Text, Speech and Dialogue (TSD 2003) September 8-11, 2003, Ceske Budejovice, Czech Republic. Lecture Notes in Artificial Intelligence (LNAI), Matousek and Mautner (Eds.), pp 189-197, Springer Verlang. (Book)

[58]. M. Maragoudakis, E. Kavallieratou, N. Fakotakis and G. Kokkinakis: An Effective Stochastic Estimation of Handwritten Character Segmentation Bounds , ISAP 2003: Competitive Environment, Renewable Energy, Distributed Generation. Lemnos, Greece, 31 August- 3 September , 2003. (Conference)

[59]. M. Maragoudakis, K. Kermanidis and N. Fakotakis: Towards a Bayesian Stochastic Part-Of-Speech and Case Tagger of Natural Language Corpora , CORPUS LINGUISTICS 2003, Lancaster University (UK), 28 - 31 March, pp 486-495, 2003. (Conference)

[60]. M. Maragoudakis, A. Thanopoulos, Kyriakos Sgarbas and N. Fakotakis: Domain knowledge acquisition and plan recognition by probabilistic reasoning , Seventh International Conference on Knowledge-Based Intelligent Information & Engineering Systems (ΚES'2003). University of Oxford, United Kingdom 3-5 September, 2003. (Book)

[61]. K. Georgila, K. Sgarbas, A. Tsopanoglou, N. Fakotakis, G. Kokkinakis: A Speech-based Human-Computer Interaction System for Automating Directory Assistance Services, International Journal of Speech Technology, Special Issue on Speech and Human Computer Interaction, Kluwer Academic Publishers, Vol. 6, No. 2, pp. 145-159, 2003 (http://www.kluweronline.com/issn/1381-2416). (Journal)

[62]. T. Ganchev, N. Fakotakis, G. Kokkinakis: Impostor Modelling Techniques for Speaker Verification Based on Probabilistic Neural Networks , The IASTED International Conference on Signal Processing, Pattern Recognition, and Applications SPPRA 2003, Rhodes, Greece, June 30-July 2, 2003. pp.185–190. (Conference)

[63]. P. Zervas, I. Potamitis, N. Fakotakis, G. Kokkinakis: Fixed-Point DSP Implementation of HVXC Encoder/Decoder on OakDSPCore Platform, SPPRA 2003, International Conference on Signal Processing, Pattern Recognition and Applications, pp. 220-223, Rhodes, Greece, June 30 - July 2, 2003. (Conference)

[64]. I. Potamitis, K. Georgila, N. Fakotakis, G. Kokkinakis: Towards a User-friendly Automated Control of Home Appliances Based on Speech Recognition and Microphone Arrays, In Proceedings of the International Workshop on Speech and Computers, Moscow, Russia, Oct. 27-29, 2003 (to be presented). (Conference)

[65]. I. Potamitis, K. Georgila, P. Zervas, N. Fakotakis, G. Kokkinakis: An electronic assistant for automatic control of home-appliances using natural speech and distant microphones, SPPRA 2003, International Conference on Signal Processing, Pattern Recognition and Applications, pp. 191-195, Rhodes, Greece, June 30 - July 2, 2003. (Conference)

[66]. T. Ganchev, I. Potamitis, N. Fakotakis: Noise-Source Modelling for Robust Speaker Verification in Adverse Environments , Competitive Environment, Renewable Energy, Distributed Generation ISAP 2003, Lemnos, Greece, August 31st - September 3rd, 2003. paper ISAP03/137. (Conference)

[67]. A. Thanopoulos, N. Fakotakis, G. Kokkinakis,: Identification of Multiwords as Preprocessing for Automatic Extraction of Lexical Similarities , TSD 2003, 6th International Conference on Text, Speech and Dialogue, Ceske Budejovice, Czech Republic, Sept. 8 - 11, 2003. Vaclav Matousek, Pavel Mautner, et. al. (Editors): Lecture Notes in Artificial Intelligence, LNAI 2807, pp. 98-105, Springer-Verlag, 2003. (Book)

[68]. T. Ganchev, N. Fakotakis, G. Kokkinakis: Probabilistic Neural Networks Based Speaker Verification in Forensic Scenario, 2003 NFI/TNO Forensic Speaker Recognition Evaluation, September 2003, The Netherlands. (Technical report)

[69]. I. Potamitis, K. Georgila, N. Fakotakis, G. Kokkinakis: An Integrated System for Smart-Home Control of Appliances Based on Remote Speech Interaction , EUROSPEECH 2003, 8th European Conference on Speech Communication and Technology, pp. 2197-2200, Geneva, Switzerland, Sept. 1-4, 2003. (Conference)

[70]. K. Georgila, K. Sgarbas, N. Fakotakis, G. Kokkinakis: A Layered, Transducer-Based Language Model for Speech and Language Processing , In Proceedings of the International Workshop on Speech and Computers, Moscow, Russia, Oct. 27-29, 2003 (to be presented). (Conference)

[71]. T. Ganchev, N. Fakotakis, G. Kokkinakis: Toward 2003 NIST Speaker Recognition Evaluation: The WCL-1 System , International Workshop Speech and Computer SPECOM-2003, Moscow, Russia, October 27-29, 2003. pp.256–261. (Conference)

[72]. T. Ganchev, N. Fakotakis, G. Kokkinakis: Text-Independent Speaker Verification: The WCL-1 System , 6th International Conference on Text, Speech and Dialogue TSD 2003, Lecture Notes in Artificial Intelligence (LNAI), Matousek and Mautner (Eds.), Springer Verlag, vol. LNAI 2807/2003, September 2003, pp.263– 268. (Book)

[73]. T. Ganchev, D. Tasoulis, M. Vrahatis, N. Fakotakis: Locally Recurrent Probabilistic Neural Network for Text-Independent Speaker Verification , 8th European Conference on Speech Communication and Technology EUROSPEECH 2003, Geneva, Switzerland, September 1-4, 2003. Volume III, pp.1673–1676. (Conference)

[74]. K. Georgila , N. Fakotakis , G. Kokkinakis: Stochastic Language Modelling for Recognition and Generation in Dialogue Systems, T.A.L, (Traitement automatique des langues) Journal,Vol. 43, No. 3, pp. 129-154, 2002. (Journal)

[75]. J. Sirigos, N. Fakotakis and G. Kokkinakis: A Hybrid Syllable Recognition System Based on Vowel Spotting, Speech Communication Journal, Vol. 35, No 3-4, pp. 427-440, 2002. (Journal)

[76]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Gender - Dependent and Speaker - Dependent Speech Enhancement, ICASSP 2002, IEEE International Conference on Acoustic, Speech and Signal Processing, Vol. 1, pp. 249-252, Orlando, Florida, USA, May 13 -17, 2002. (Conference)

[77]. K.Kermanidis, A. Kousavidi, N. Fakotakis and G. Kokkinakis: Learning Clause Boundaries and Types in Modern Greek Sentences, 2nd Panhellenic Conference on Artificial Intelligence, pp. 79-90, Thessalonica, Greece, April 11-12, 2002. (Conference)

[78]. N. Liolios, N. Fakotakis and G. Kokkinakis: On the Generalization of the Form Identification and Skew Detection Problem, Pattern Recognition Journal, Vol. 35, Issue 1, pp. 253-264, 2002. (Journal)

[79]. E Kavallieratou, N. Fakotakis and G. Kokkinakis: An Unconstrained Handwriting Recognition System, IJDR, International Journal on Document Analysis and Recognition, Vol. 4, No. 4, pp. 226-242, 2002. (Journal)

[80]. M. Maragoudakis, E. Kavallieratou and N. Fakotakis: Improving Handwritten Character Segmetation by Encorporating Bayesian Knowledge with Support Vector Machines , ICASSP 2002, IEEE International Conference on Acoustic, Speech and Signal Processing, Vol. 0, pp. 000-000, Orlando, Florida, USA, May 13 -17, 2002. (Conference)

[81]. K. Georgila , N. Fakotakis , G. Kokkinakis: Large Vocabulary Search Space Reduction Employing Directed Acyclic Word Graphs and Phonological Rules, International Journal of Speech Technology, Kluwer Academic Publishers, Vol. 5, No. 4, pp. 355-370, 2002 (http://www.kluweronline.com/issn/1381-2416). (Journal)

[82]. K. Sgarbas, N. Fakotakis, G. Kokkinakis: Optimal Insertion in Deterministic DAWGs , Theoretical Computer Science, Elsevier, Vol. 0, No. 0, pp. 000-000, 2002. (Accepted for publication). (Journal)

[83]. N Liolios, N. Fakotakis and G. Kokkinakis: Karhunen-Loeve Vs. Discrete Cosine Transform Feature Extraction for Handwritten Character Recognition, Signal Processing and Pattern Recognition, AMSE Periodicals, Vol. 0, Issue 0, pp. 000-000, 2002. (Accepted for publication). (Journal)

[84]. E Kavallieratou, N. Fakotakis and G. Kokkinakis: Skew Angle Estimation for Printed and Handwritten Documents using the Winger-Ville Distribution, Image and Vision Computing Journal, Vol. 0, No. 0, pp. 000-000, 2002. (Accepted for publication). (Journal)

[85]. A. Thanopoulos, N. Fakotakis, G. Kokkinakis: Comparative Evaluation of Collocation Extraction Metrics, LREC 2002, 3rd International Conference on Language Resources and Evaluation, Vol. 2, pp. 620-625, Las Palmas, Spain, May 29-31, 2002. (Conference)

[86]. K. Sgarbas, G. Londos, N. Fakotakis, G. Kokkinakis: The WATCHER Project: Building an Agent for Automatic Extraction of Language Resources from the Internet, Computational Linguistics, special issue in. (Journal)

[87]. K. Sgarbas, N. Fakotakis, G. Kokkinakis: Transformation of DAWGs into Word Lattices, Journal on Artificial Intelligence Tools, World Scientific, Vol. 0, No. 0, pp.000-000, 2002. (under review). (Journal)

[88]. I. Potamitis, N. Fakotakis, N. Liolios: Speech Enhancement based on Combining Perceptual Enhancement and Short-Time Spectral Attenuation, Signal Processing and Pattern Recognition, AMSE Periodicals, Vol. 0, Issue 0, pp. 000-000, 2002. (Accepted for publication). (Journal)

[89]. M. Maragoudakis, A. Thanopoulos, N. Fakotakis: Statistical Decision Making applied to Text and Dialogue Corpora for Effective Plan Recognition , TSD 2002, 5th International Conference on Text, Speech and Dialogue, Brno, Czech Republic, Sept. 9-12, 2002. P. Sojka, et.al. (Editors.): Lecture Notes in Computer Science, LNAI 2448, pp. 365-372, Springer-Verlag, 2002. (Book)

[90]. T. Ganchev, N. Fakotakis, G. Kokkinakis: Text-Independent Speaker Verification Based on Probabilistic Neural Networks , Acoustics 2002, Sept 30th – Oct 1st, 2002, Patras, Greece. pp.159–166. (Conference)

[91]. M. Maragoudakis, N. Tselios, N. Fakotakis and N. Avouris: Improving SMS usability using Bayesian Networks , 2nd Panhellenic Conference on Artificial Intelligence, Thessaloniki Greece, April 11-12, 2002. I.P.Vlahavas and C.D. Spyropoulos (Editors): Lecture notes in Artificial Intelligence, LNAI 2308, pp. 179-190, Springer-Verlag, 2002. (Book)

[92]. T. Ganchev, N. Fakotakis, G. Kokkinakis: A Speaker Verification System Based On Probabilistic Neural Networks , NIST’02, Speaker Recognition Workshop, (proceedings in CD) Vienna, Virginia, USA, May 20-22, 2002. (Conference)

[93]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Speech Enhancement Using Mixtures of Gaussians for Speech and Noise, TSD 2002, 5th International Conference on Text, Speech and Dialogue, Brno, Czech Republic, Sept. 9-12, 2002. P. Sojka, et. al. (Editors.): Lecture Notes in Computer Science, LNAI 2448, pp. 337-340, Springer-Verlag, 2002. (Book)

[94]. M. Maragoudakis, K. Kermanidis, N. Fakotakis, G. Kokkinakis: Combining Bayesian and Support Vector Machines Learning to automatically complete Syntactical Information for HPSG-like Formalisms , LREC 2002, 3rd International Conference on Language Resources and Evaluation, Las Palmas, Vol. 1, pp. 93-100, Spain, May 29-31, 2002. (Conference)

[95]. M. Maragoudakis, E. Kavallieratou, N. Fakotakis: Incorporating Conditional Independence Assumption with Support Vector Machines to enhance Handwritten Character Segmentation Performance , ICPR 2002, 16th International Conference of the International Association of Pattern Recognition, Vol. 0, pp. 000-000, Quebec-Canada, 2002. (Conference)

[96]. T. Ganchev, A. Tsopanoglou, N. Fakotakis, G. Kokkinakis: Probabilistic Neural Networks Combined with GMMs for Speaker Recognition over Telephone Channels , 14th International Conference on Digital Signal Processing (DSP2002), July 1-3, 2002, Santorini, Greece. Volume II, pp.1081–1084. (Conference)

[97]. K.L. Kermanidis, N. Fakotakis and G. Kokkinakis: Delos: An Automatically tagged Economic Corpus for Modern Greek, LREC 2002, 3rd International Conference on Language Resources and Evaluation, Vol. 2, pp. 718-722, Las Palmas, Spain, May 29-31, 2002. (Conference)

[98]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Speech Enhancement Based on Combining Perceptual Enhancement and Short-Time Spectral attenuation, ICSLP 2002, 7th International Conference on Spoken Language Processing, Vol. 3, pp. 1785-1788, Denver-Colorado, USA, Sept. 16-20, 2002. (Conference)

[99]. P. Zervas, I. Potamitis, N. Fakotakis, G. Kokkinakis: On the First Greek-TTS based on Festival Speech Synthesis: Architecture and Components Description, TSD 2002, 5th International Conference on Text, Speech and Dialogue, Brno, Czech Republic, Sept. 9-12, 2002. P. Sojka, et. al. (Editors.): Lecture notes in Artificial Intelligence, LNAI 2448, pp. 261-264, Springer-Verlag, 2002. (Book)

[100]. I. Potamitis, N. Fakotakis and G. Kokkinakis: Minimal Recurrent Neural Nets as Applied to the Problem of Car Noise, EURONOISE 2001, 4th European Conference on Noise Control, Vol. 1, pp. 514-525, Patras, Greece Jan. 14-17, 2001. (Conference)

[101]. I. Potamitis, N. Fakotakis and G. Kokkinakis: Speech Enhancement using the Sparse Code Shrinkage Technique , ICASSP 2001, IEEE International Conference on Acoustic Speech and Signal Processing, Vol. 1, pp. 621-624, Salt Lake City, Utah, May 7-11, 2001. (Conference)

[102]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Bayesian Independent Component Analysis as Applied to One-Channel Speech Enhancement , ICANN 2001, International Conference on Artificial Neural Networks, Vienna, Austria, August 20001. Georg Doffner et.al. (Editors): Lecture Notes in Computer Science series, LNCS 2130, pp. 593-600, Springer-Verlag, 2001. (Book)

[103]. K.L. Kermanidis, M. Maragoudakis, N. Fakotakis and G. Kokkinakis: Influence of Conditional Independence Assumption on Verb Subcategorization Detection , TSD 2001, 4th International Conference on Text, Speech and Dialog, Zelezna Ruda, Czech Republic, Sept. 10-14, 2001. V. Matousek et. al. (Editors): Lecture notes in Artificial Intelligence, LNAI 2166, pp. 62-69, Springer-Verlag, 2001. (Book)

[104]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Bayesian Noise Compensation of Time Trajectories of Spectral Coefficients for Robust Speech Recognition, TSD 2001, 4th International Conference on Text, Speech and Dialog, Zelezna Ruda, Czech Republic, Sept. 10-14, 2001. V. Matousek et. al. (Editors): Lecture notes in Artificial Intelligence, LNAI 2166, pp. 214-221, Springer-Verlag, 2001. (Book)

[105]. N. Fakotakis and K. Sgarbas: Machine Learning in Human Language Technology , ACAI’99. G.Palouras et.al. (Editors): Lecture Notes in Artificial Intelligence, LNAI 2049, pp. 267-273, Springer-Verlag, 2001. (Book)

[106]. N. Liolios, N. Fakotakis and G. Kokkinakis: An Improvement to Document Skew Detection Based on Nearest Neighbour Cluster Extension, Signal Processing and Pattern Recognition, AMSE Periodicals, Vol. 44, No 2, pp. 9-20, 2001. (Journal)

[107]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Robust Automatic Speech Recognition in the Presence of Impulsive Noise , Electronics, Letters, an International Publication, IEE, Vol. 37, No. 12, pp. 799-800, June 2001. (Journal)

[108]. E. Stamatatos, N. Fakotakis, G. Kokkinakis: Automatic Text Categorisation in Terms of Genre and Author , Computational Linguistics, Vol. 26, No. 4, pp. 471-495, 2001. (Journal)

[109]. E. Stamatatos, N. Fakotakis, G. Kokkinakis: Computer-Based Authorship Attribution without Lexical Measures , Computers and the Humanities, Vol. 35, Issue 2, pp.193-214, May 2001. (Journal)

[110]. E. Kavallieratou, Fakotakis N. and G. Kokkinakis: Slant Estimation Algorithm for OCR Systems , Pattern Recognition Journal, Vol. 34, Issue 12, pp. 2515-2522, 2001. (Journal)

[111]. A. Thanopoulos, N. Fakotakis, G. Kokkinakis: Exploiting Rich Contextual Data for Automatic Extraction of Semantic Knowledge, T.A.L, (Traitement automatique des langues) Journal,Vol. 42, No 3, pp. 785-812, 2001. (Journal)

[112]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Speech Recognition Based on Feature Extraction with Variable Rate Frequency Sampling , TSD 2001, 4th International Conference on Text, Speech and Dialog, Zelezna Ruda, Czech Republic, Sept. 10-14, 2001. V. Matousek, et. al. (Editors): Lecture notes in Artificial Intelligence, LNAI 2166, pp. 329-333, Springer-Verlag, 2001. (Book)

[113]. E. Kavallieratou, N. Liolios, E. Koutsogeorgos, N. Fakotakis, G.Kokkinakis: The GRUHD database of Modern Greek Unconstrained Handwriting , ICDAR 2001. Sixth International Conference on Document Analysis and Recognition. September 10-13, 2001. (Conference)

[114]. N. K. Tselios , M. Maragoudakis, I. M. Avouris, N.Fakotakis, I. Kordaki: Automatic diagnosis of student problem solving strategies using Bayesian Networks , 5th Panhellenic Conference in Mathematics and Informatics in Education, Vol. 0, No 0, pp. 000-000, Thessalonica, Oct. 12-14, 2001. (Conference)

[115]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Bayesian factor analysis as applied to speech enhancement, ASME International - Greek Section, First National Conference on Recent Advances in Mechanical Engineering, Patras, Greece, Sept. 17-20, 2001. (Conference)

[116]. D. Louloudis, K. Georgila, A. Tsopanoglou, N. Fakotakis and G. Kokkinakis: Efficient Strategy and Language Modeling in Human-Machine Dialogues , SCI 2001, 5th World Multi-Conference on Systemics, Cybernetics and Informatics, Vol. XIII, pp. 229-234, Orlando, Florida, USA, July 22-25, 2001. (Conference)

[117]. N. Liolios, N.Fakotakis, G.Kokkinakis: Improved Document Skew Detection based on Text Line Connected-Component Clustering, ICIP’01, IEEE International Conference on Image Processing, Vol. 1, pp. 1098-1101, Thessalonica, Greece, Oct. 7-10, 2001. (Conference)

[118]. K. Sgarbas, A Tsopanoglou, N. Fakotakis and G. Kokkinakis: GEMINI: A Platform for Developing Natural Language and Speech Based Interactive Systems, 8th Panhellenic Conference in Information Management, Vol. 2, pp.582-591, Nicosia, Cyprus, Nov. 8-10, 2001. (Conference)

[119]. K. Sgarbas, N. Fakotakis, G. Kokkinakis: The Watcher Project: Overview and Recent Progress, Proc. Seminar/Workshop. (Conference)

[120]. M. Maragoudakis, B.Kladis, A. Tsopanoglou, K. Sgarbas, N. Fakotakis: Natural Language in Dialogue Systems. A Case Study on a Medical Application , PC-HCI 2001, Panhellenic Conference, with International Participation, in Human–Computer Interaction, pp. 197-201, Patras Greece, Dec. 7-9, 2001. (Conference)

[121]. K. Georgila, A. Tsopanoglou, N. Fakotakis, G. Kokkinakis: Improved Large Vocabulary Speech Recognition Using Lexical Rules , Advances in Human–Computer Interaction (PC-HCI), pp. 191-196, Patras Greece, Dec. 7-9, 2001. (Conference)

[122]. M. Maragoudakis, K. Kermanidis, N. Fakotakis, G. Kokkinakis: Learning Automatic Acquisition of Subcategorization Frames using Bayesian Inference and Support Vector Machines, ICDM '01, The 2001 IEEE International Conference on Data Mining, San Jose, pp. 623-625, Nov. 29 – Dec. 2, 2001. (Conference)

[123]. K. Georgila, A. Tsopanoglou, N. Fakotakis, G. Kokkinakis: Refining the N-best Hypotheses’ List in Large Vocabulary Recognition by Applying Lexical Rules, In Proceedings of the International Workshop on Speech and Computers, pp. 97-102, Moscow, Russia, Oct. 29-31, 2001. (Conference)

[124]. I. Potamitis, N. Fakotakis and G. Kokkinakis: Independent Component Analysis Applied to Speech Denoising, EURONOISE 2001, 4th European Conference on Noise Control, Vol. 1, pp. 466-478, Patras, Greece Jan. 14-17, 2001. (Conference)

[125]. K. Georgila, N. Fakotakis, G. Kokkinakis: Variable History Stochastic Networks for Language Modelling in Dialogue Systems, In Proceedings of the International Workshop on Speech and Computers, pp. 182-187, Moscow, Russia, Oct. 29-31, 2001. (Conference)

[126]. M. Maragoudakis, B. Kladis, A.Tsopanoglou, K. Sgarbas, N. Fakotakis: Human-Computer Interaction using Natural Language. An Application in the Medical Treatment Domain , ΚΤΗΣΙΒΙΟΣ: Πανελλήνιο Συνέδριο Αυτοματισμού, Ρομποτικής και Βιομηχανικής Παραγωγής. (Conference)

[127]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Car-noise compensation using neural networks, ASME International - Greek Section, First National Conference on Recent Advances in Mechanical Engineering, Patras, Greece, Sept. 17-20, 2001. (Conference)

[128]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Impulsive noise suppression in the context of automatic speech recognition, ASME International - Greek Section, First National Conference on Recent Advances in Mechanical Engineering, Patras, Greece, Sept. 17-20, 2001. (Conference)

[129]. K. Georgila, N. Fakotakis and G. Kokkinakis: Efficient Stochastic Finite-State Networks for Language Modelling in Spoken Dialogue Systems , EUROSPEECH 2001, 7th European Conference on Speech Communication and Technology, Vol. I, pp. 247-250, Aalborg, Denmark, Sept. 3-7, 2001. (Conference)

[130]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Map Estimation for On-line Noise Compensation of Time Trajectories of Spectral Coefficients , EUROSPEECH 2001, 7th European Conference on Speech Communication and Technology, Vol. III, pp. 1899-1902, Aalborg, Denmark, Sept. 3-7, 2001. (Conference)

[131]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Autoregressive Time-Frequency Interpolation in the Context of Missing Data Theory for Impulsive Noise Compensation , EUROSPEECH 2001, 7th European Conference on Speech Communication and Technology, Vol. IV, pp. 1275-2478, Aalborg, Denmark, Sept. 3-7, 2001. (Conference)

[132]. D. Louloudis, A. Tsopanoglou N. Fakotakis, G. Kokkinakis: Mathematical Modeling of Spoken Human-Machine Dialogues Including Erroneous Confirmations, EUROSPEECH 2001, 7th European Conference on Speech Communication and Technology, Vol. IV, pp. 2329-2332, Aalborg, Denmark, Sept. 3-7, 2001. (Conference)

[133]. E. Kavallieratou, N. Liolios, E. Koutsogeorgos, N. Fakotakis, G. Kokkinakis: The GRUHD Database of Greek Unconstrained Handwriting , IAPR, ICDAR’01, 6th International Conference on Document Analysis and Recognition, pp. 561-565, Seattle, Washington, USA, Sept. 10-13, 2001. (Conference)

[134]. M. Maragoudakis, E. Kavallieratou, N. Fakotakis and G. Kokkinakis: How Conditional Independence Assumption affects Handwritten Character Segmentation , IAPR, ICDAR’01, 6th International Conference on Document Analysis and Recognition, pp. 246-250, Seattle, Washington, U.S.A, Sept. 10-13, 2001. (Conference)

[135]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: Incremental Construction of Compact Acyclic NFA’s , ACL ’01, Association for Computational Linguistics, 39th Annual Meeting, pp. 474-481, Toulouse, Frances, July 9-11, 2001. (Conference)

[136]. E. Kopanaki, V. Karkaletsis, C. Spyropoulos, N. Avradinis, N. Fakotakis, T. Kalamboukis, B. Kladis, Y. Lazarou, T. Panayiotopoulos and D. Spinellis: MITOS: An Integrated Web- based System for Information Management, 8th Panhellenic Conference in Informatics Management, Vol. 2, pp.328-337, Nicosia, Cyprus, Nov. 8-10, 2001. (Conference)

[137]. E. Kavallieratou, M. F. Popa, D. C.Balcan, N. Fakotakis: Handwritten Text Localization in Skewed Documents , ICIP’01, IEEE International Conference on Image Processing, Vol. 1, pp. 1102-1105, Thessalonica, Greece, Oct. 7-10, 2001. (Conference)

[138]. E. Stamatatos, N. Fakotakis, G. Kokkinakis: Text Genre Detection Using Common Word Frequencies , COLING 2000, 18th International Conference on Computational Linguistics, Vol. 2, pp. 808-814, Luxembourg, July 31-Aug. 4, 2000. (Conference)

[139]. E. Kavallieratou, N. Fakotakis and G. Kokkinakis: A Slant Removal Algorithm , Pattern Recognition Journal, Vol. 33, Issue 7, pp. 1261-1262, 2000. (Journal)

[140]. I. Potamitis, N. Fakotakis and G. Kokkinakis: Independent Component Analysis Applied to Feature Extraction for Robust Automatic Speech Recognition , Electronics, Letters, an International Publication, IEE, Vol. 36, No. 23, pp. 1977-1978, Nov. 2000. (Journal)

[141]. K. Kermanidis, K. Sgarbas, N. Fakotakis and G. Kokkinakis: A PC-PATR-based Syntactical Description of Modern Greek , Literary and Linguistic Computing, Vol. 5, Issue 3, pp. 291-312, 2000. (Journal)

[142]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Impulsive Noise Removal using Neural Networks , ICASSP 2000, IEEE International Conference on Acoustic, Speech and Signal Processing, Vol. 3, pp. 1871-1874, Istanbul, Turkey, May 5-9, 2000. (Conference)

[143]. K. Georgila, N. Fakotakis and G. Kokkinakis: A Graphical Parametric Language-Independent Tool for the Annotation or Speech Corpora , LREC 2000, 2nd International Conference on Language Resources and Evaluation, Vol. 3, pp. 1537-1542, Athens, Greece, May 31-June 2, 2000. (Conference)

[144]. E. Kavallieratou, N. Liolios, E. Koutsogeorgos, N. Fakotakis and G. Kokkinakis: GRUHD: A Greek Database or Unconstrained Handwriting, LREC 2000, 2nd International Conference on Language Resources and Evaluation, Vol. 3, pp. 1755-1759, Athens, Greece, May 31- June 2, 2000. (Conference)

[145]. E. Stamatatos, N. Fakotakis, G. Kokkinakis: A Practical Chunker for Unrestricted Text , NLP 2000, 2nd International Conference on Natural Language Processing. (Book)

[146]. K. Kermanidis, N. Fakotakis, G. Kokkinakis: ΑΝΑΛΥΣΗ ΤΩΝ ΟΝΟΜΑΤΙΚΩΝ ΦΡΑΣΕΩΝ ΤΗΣ ΝΕΑΣ ΕΛΛΗΝΙΚΗΣ ΜΕ ΧΡΗΣΗ ΤΟΥ ΦΟΡΜΑΛΙΣΜΟΥ HPSG ΚΑΙ ΥΛΟΠΟΙΗΣΗ ΣΤΟ ΠΕΡΙΒΑΛΛΟΝ ΑΝΑΠΤΥΞΗΣ ALE , Μελέτες για την Ελληνική Γλώσσα, Πρακτικά της 21ης Ετήσιας Συνάντησης Εργασίας του Τομέα Γλωσσολογίας της Φιλοσοφικής Σχολής του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης, σελ. 283-294, 12-14 Μαίου 2000. (Conference)

[147]. A. Thanopoulos, N. Fakotakis, G.Kokkinakis: Automatic Extraction of Semantic Relation from Specialized Corpora , Proceedings of COLING2000, pp. 836-842, 2000. (Conference)

[148]. A. Thanopoulos, N. Fakotakis, G.Kokkinakis: Automatic Extraction of Semantics Similarity of Words from Raw Technical Texts , Proceedings of LREC 2000, Athens, 31 May - 2 June 2000. (Conference)

[149]. K. L. Kermanidis, N. Fakotakis, G. Kokkinakis: Analysis and Implementation of Modern Greek Noun Phrases in ALE Grammar Development Environment, Using HPSG Formalism, 21st Annual Workshop Studies in Greek Linguistics, pp. 283-294, Thessalonica, Greece, May 12-14, 2000. (Conference)

[150]. E. Kavallieratou, E. Stamatatos, N. Fakotakis and G. Kokkinakis: Handwritten Character Segmentation Using Transformation-based Learning , ICPR 2000, 15th International Conference on Pattern Recognition, Vol. 2, pp. 634-637, Barcelona, Spain, Sept. 3-8, 2000. (Conference)

[151]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Reliable ASR based on Unreliable Features , ASR 2000, Automatic Speech Recognition: Challenges for the New Millennium, Vol.1, pp. 53-57, Paris, France, Sept. 18-20, 2000. (Conference)

[152]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: A Straightforward Approach to Morphological Analysis and Synthesis , COMLEX 2000, Workshop on Computational Lexicography and Multimedia Dictionaries, pp. 31-34, Patras, Greece, Sept. 22-23, 2000. (Conference)

[153]. K. Georgila, K. Sgarbas, N. Fakotakis, G. Kokkinakis: Fast Very Large Vocabulary Recognition Based on Compact DAWG-Structured Language Models , ICSLP 2000, 6th International Conference on Spoken Language Processing, Vol. II, pp. 987-990, Beijing, China, Oct. 16-20, 2000. (Conference)

[154]. K. Georgila, N. Fakotakis, G. Kokkinakis: Building Stochastic Language Model Networks Based on Simultaneous Word/Phrase Clustering , ICSLP 2000, 6th International Conference on Spoken Language Processing, Vol. I, pp. 122-125, Beijing, China, Oct. 16-20, 2000. (Conference)

[155]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Spectral and Cepstral Projection Bases Constructed by Independent Component Analysis , ICSLP 2000, 6th International Conference on Spoken Language Processing, Vol. III, pp. 63-66, Beijing, China, Oct. 16-20, 2000. (Conference)

[156]. I. Potamitis, N. Fakotakis, G. Kokkinakis: Improving the Robustness of Noisy MFCC Features Using Minimal Recurrent Neural Networks, IJCNN 2000, the IEEE-INNS-ENNS International Joint Conference on Neural Networks, Vol. 1, pp. 271-278, Como, Italy, July 24-27, 2000. (Conference)

[157]. S. Michos, S. Stamatatos and N. Fakotakis: Supporting Multilinguality to Library Automation Systems through AI Tools , AAI’99, International Journal on Applied Artificial Intelligence, Vol. 13, pp. 679-703, 1999. (Journal)

[158]. E. Kavallieratou, N. Fakotakis and G. Kokkinakis: New Algorithms for Skewing Correction and Slant Removal on Word-Level , ICECS '99, 6th IEEE International Conference on Electronics, Circuits and Systems, Vol. 2, pp. 1159-1162, Pafos, Cyprus, Sept. 5-8, 1999. (Conference)

[159]. S. Michos, N. Fakotakis and G. Kokkinakis: Using Functional Style Features to Enhance Information Extraction from Greek Texts, Advances in Intelligent Systems: Concepts, Tools and Applications, Ch. 13, pp. 143-154, Kluwer, 1999. (Book)

[160]. N. Fakotakis, J. Sirigos and G. Kokkinakis: High Performance Text-Independent Speaker Recognition System Based on Voiced/Unvoiced Segmentation and Multiple Neural Nets, EUROSPEECH '99, 6th European Conference on Speech Communication and Technology, Vol. 2, pp. 979-982, Budapest, Hungary, Sept. 5-10, 1999. (Conference)

[161]. E. Kavallieratou, N. Fakotakis and G. Kokkinakis: Skew Angle Estimation in Document Processing using Cohen’s Class Distributions , Pattern Recognition Letters, Vol. 20, Issue 11, pp. 1305-1311, Nov. 1999. (Journal)

[162]. S. Stamatatos, N. Fakotakis and G. Kokkinakis: Automatic Authorship Attribution , EACL'99, 9th Conference of the European Chapter of the Association for Computational Linguistics. (Conference)

[163]. E. Stamatatos, N. Fakotakis, G. Kokkinakis: Automatic Extraction of Rules for Sentence Boundary Disambiguation , Workshop on Machine Learning in Human Language Technology, pp. 88-92, Chania, Greece, July 7-8, 1999. (Conference)

[164]. J. Sirigos, N. Fakotakis and G. Kokkinakis: A Hybrid ANN/HMM Syllable Recognition Module Based on Vowel Spotting, EUROSPEECH '99, 6th European Conference on Speech Communication and Technology, Vol. 3, pp. 1119-1122, Budapest, Hungary, Sept. 5-10, 1999. (Conference)

[165]. S. Michos, N. Fakotakis and G. Kokkinakis: Enhancing Text Retrieval by Using Advanced Stylistic Techniques, International Journal of Intelligent and Robotics Systems, Vol.26, No. 2, pp.136-148, Oct.1999. (Journal)

[166]. J. Sirigos, N. Fakotakis and G. Kokkinakis: Improving Environment Robustness of Speech Recognition Systems, Workshop on Robust Methods for Speech Recognition in Adverse Conditions, pp. 211-214, Tampere, Finland, May 25-26, 1999. (Conference)

[167]. N. Liolios, N. Fakotakis and G. Kokkinakis: Form Identification and Skew Detection from Projections, EUSIPCO'98, 9th European Signal Processing Conference, Vol. 2, pp. 605-612, Rhodes, Greece, Sept. 8-11, 1998. (Conference)

[168]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: Morphological Description of Modern Greek Language with the two-level Model , 19th Annual Workshop, Studies in Greek Linguistics, pp. 419-433, Thessalonica, Greece, April, 1998. (Conference)

[169]. P. Retzepopoulos, E. Dermatas, K. Sgarbas, N. Fakotakis and G. Kokkinakis: Automatic Phoneme to Grapheme conversion of Modern Greek Language , 19th Annual Workshop, Studies in Greek Linguistics, pp. 404-418, Thessalonica, Greece, April, 1998. (Conference)

[170]. K. Sgarbas, N. Fakotakis, G.Kokkinakis: Watcher: An Intelligent Agent for Automatic Extraction of Language Resources from the Internet , Procceedinds of "ELSNET in Wonderland". The Netherlands, March 25-27, 1998. pp.100-104. (Conference)

[171]. J. Sirigos, N. Fakotakis and G. Kokkinakis: A High Performance Vowel Spotting System Based on a Multi-Stage Architecture, EUSIPCO'98, 9th European Signal Processing Conference, Vol. 2, pp. 1173-1176, Rhodes, Greece, Sept. 8-11, 1998. (Conference)

[172]. K. Georgila, A. Tsopanoglou, N. Fakotakis and G. Kokkinakis: A Dialogue System for Telephone-based Services Integrating Spoken and Written Language , IVTTA'98, 4th IEEE Workshop on Interactive Voice Technology for Telecommunications Applications, pp. 55-59, Turin, Sept. 29-30, 1998. (Conference)

[173]. K. Georgila, A. Tsopanoglou, N. Fakotakis and G. Kokkinakis: An Integrated Dialogue System for the Automation of Call Center Services , ICSLP'98, 5th International Conference on Spoken Language Processing, Vol. 2, pp. 45-48, Sydney, Australia, Nov. 30- Dec. 4, 1998. (Conference)

[174]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: A PC-KIMO Based Bi-Directional Grapheme/Phoneme Converter for Modern Greek , Literary and Linguistic Computing Journal, Vol. 13, No. 2, pp. 65-75, 1998. (Journal)

[175]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: TEMPO: A Temporal Sub-Parser for Modern Greek, International Journal of Artificial Intelligence Tools, Vol. 7, No. 1, pp. 103-120, 1998. (Journal)

[176]. K. Sgarbas, S. Michos, N. Fakotakis, G.Kokkinakis: Η Έρευνα στο Εργαστήριο Ενσύρματης Τηλεπικοινωνίας σε Θέματα Επεξεργασίας Φυσικής Γλώσσας , Πρακτικά Συμποσίου της Ελληνικής Εταιρίας Τεχνητής Νοημοσύνης (ΣΕΤΝ 96), Πανεπιστήμιο Πειραιώς, ISBN 960-86269-0-0. 1998, σελ. 24-27. (Conference)

[177]. A. Tsopanoglou and N. Fakotakis: Selection of the Most Effective Sets of Subword Units for an HMM-Based Speech Recognition System, EUROSPEECH'97, 5th European Conference on Speech Communication and Technology, Vol. 3, pp. 1231-1234, Rhodes, Greece, Sept. 22-25, 1997. (Conference)

[178]. S. Michos, N. Fakotakis and G. Kokkinakis: Towards an Adaptive Natural Language Interface to Command Languages, Journal on Natural Language Engineering, 2 (3), pp. 191-209, Cambridge University Press, 1997. (Journal)

[179]. S. Stamatatos, S. Michos, N. Fakotakis and G. Kokkinakis: A User-Assisted Business Letter Generator Dealing With Text's Stylistic Variations , ICTAI'97, Proc. of the 9th IEEE International Conference on Tools With Artificial Intelligence pp. 182-189, Newport Beach, California, USA, Nov. 4-7, 1997. (Conference)

[180]. D. Tambakas, I. Tzima, N. Fakotakis and G. Kokkinakis: A Simple Phoneme Energy Model for the Greek Language and Its Applications To Speech Recognition, EUROSPEECH'97, 5th European Conference on Speech Communication and Technology, Vol. 1, pp. 513-516, Rhodes, Greece, Sept. 22-25, 1997. (Conference)

[181]. Chatzi, N. Fakotakis and G. Kokkinakis: Greek Speech Database for Creation of Voice Driven Teleservices, EUROSPEECH'97, 5th European Conference on Speech Communication and Technology, Vol. 4, pp. 1755-1758, Rhodes, Greece, Sept. 22-25, 1997. (Conference)

[182]. N. Fakotakis, K. Georgila, and A. Tsopanoglou: A Continuous HMM Text-Independent Speaker Recognition System Based on Vowel Spotting , EUROSPEECH'97, 5th European Conference on Speech Communication and Technology, Vol. 5, pp. 2347-2350, Rhodes, Greece, Sept. 22-25, 1997. (Conference)

[183]. S. Stamatatos, S. Michos, K. Patelodimou and N. Fakotakis: TRANSLIB: an Advanced Tool for Supporting Multilingual Access, MULSAIC'97, 2nd Workshop on. (Conference)

[184]. E. Kavallieratou, H. Antoniades, N. Fakotakis and G. Kokkinakis: Extraction and Recognition of Handwritten Alphanumeric Characters from Application Forms , DSP’97, 13th International Conference on Digital Signal Processing, Vol. 2, pp. 695-698, Santorini, Greece, July 2-4, 1997. (Conference)

[185]. J. Sirigos, N. Fakotakis and G. Kokkinakis: Improving Environmental Robustness of Speech Recognition Using Neural Networks, DSP’97, 13th International Conference on Digital Signal Processing, Vol. 2, pp. 575-578, Santorini, Greece, July 2-4, 1997. (Conference)

[186]. A. Thanopoulos, N. Fakotakis and G. Kokkinakis: Linguistic Processor for a Spoken Dialogue System Based on Island Parsing Techniques , EUROSPEECH'97, 5th European Conference on Speech Communication and Technology, Vol. 4, pp. 2259-2262, Rhodes, Greece, Sept. 22-25, 1997. (Conference)

[187]. D. Valkaniotis, J. Sirigos, N. Fakotakis and G. Kokkinakis: Text-Independent Off-Line Writer Recognition Using Neural Networks, EUSIPCO’96, VIII European Signal Processing Conference, Psr-6, pp. 816-841, Trieste, Italy, Sept. 1-13, 1996. (Conference)

[188]. N. Fakotakis and J. Sirigos: A High Performance Text-Independent Speaker Recognition System Based on Vowel Spotting and Neural Net, ICASSP’96, IEEE International Conference on Acoustic Speech and Signal Processing, pp. II. 661-II. 664, Atlanta, USA, May 7-10, 1996. (Conference)

[189]. J. Sirigos, V. Darsinos, N. Fakotakis and G. Kokkinakis: Vowel-Non Vowel Classification of Speech Using an MLP and Rules, EUSIPCO’96, VIII European Signal Processing Conference, Sqs-9, pp. 532-535, Trieste, Italy, Sept. 10-13, 1996. (Conference)

[190]. J. Sirigos, V. Darsinos, N. Fakotakis and G. Kokkinakis: Vowel - Non Vowel Decision Using Neural Networks and Rules, ICECS'96, 3rd IEEE International Conference on Electonics, Circuits and Systems, pp. 510-513, Rodos, Greece, Oct. 13-16, 1996. (Conference)

[191]. D. Valkaniotis, J. Sirigos, N. Antoniadis and N. Fakotakis: Text-Independent Writer Recognition Using MLP’s, ICECS'96, 3rd IEEE International Conference on Electronics, Circuits and Systems, pp. 692-695, Rodos, Greece, Oct. 13-16, 1996. (Conference)

[192]. S. Michos, E. Stamatatos, N. Fakotakis and G. Kokkinakis: An Empirical Text Categorizing Computational Model Based on Stylistic Aspects , TAI'96, 8th IEEE International Conference on Tools With Artificial Intelligence, pp. 71-77, Toulouse, France, Nov. 16-19, 1996. (Conference)

[193]. S. Michos, E. Stamatatos, N. Fakotakis and G. Kokkinakis: Categorizing Texts By Using a Three Level Functional Style Description , in A. M. Rasmsay (Editor): Artificial Intelligence: Methodology Systems, Applications, Frontiers in Artificial Intelligence and Applications, Vol. 35, pp. 191-198, 105 Press, 1996. (Book)

[194]. S. Michos, E. Stamatatos, N. Fakotakis and G. Kokkinakis: Identification for Functional Style in Unrestricted Texts Based on a Three-Level Stylistic Description, AIsb Ledar Workshop, as part of the AISB 1996 Conference, pp. 81-88, Sussex, U.K., April 2-4, 1996. (Conference)

[195]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: Two Algorithms for Incremental Construction of Directed Acyclic Word Graphs , International Journal of Artificial Intelligence Tools, Vol. 4, No 3, pp. 369-381, 1995. (Journal)

[196]. S. Michos, N. Fakotakis and G. Kokkinakis: A Novel and Efficient Method for Parsing Unrestricted Texts of Quasi Free Word Order Languages, International Journal on Artificial Intelligence Tools, Vol. 4, No 3, pp. 301-321, 1995. (Journal)

[197]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: A PC-Kimmo, Based Morphological Description of Modern Greek , Literary and Linguistic Computing Journal, Vol. 10, No 3, pp. 10-23, 1995. (Journal)

[198]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: Genetically Evolved Strategies. Winning by selective processing of the Chromosome pool , IEEE Potentials Magazine, Vol. 14, No. 1, pp. 36-40, Feb./March, 1995. (Journal)

[199]. S. Michos, G. D. Magoulas and N. Fakotakis: A Hybrid Knowledge Representation Model in a Natural Language Interface To MS-DOS, TAI’95, 7th IEEE International Conference on Tools With Artificial Intelligence, pp. 480-483, Herndon Virginia, Nov. 5-8, 1995. (Conference)

[200]. J. Sirigos, N. Fakotakis and G. Kokkinakis: A Comparison of Several Speech Parameters for Speaker Independent Speech Recognition and Speaker Recognition, EUROSPEECH'95, 4th European Conference of Speech Communication and Technology Madrid, Spain, pp. 1407-1410, Sept. 18-21, 1995. (Conference)

[201]. D. Tambakas, N. Fakotakis and G. Kokkinakis: Robust Phoneme Prototype Extraction for Speech Recognition, EUROSPEECH'95, 4th European Conference of Speech Communication and Technology Madrid, Spain, pp. 927-930, Sept. 18-21, 1995. (Conference)

[202]. S. Michos, N. Fakotakis and G. Kokkinakis: A Novel Method for Parsing Complex Sentences in Syntactically Free Languages, 6th IEEE International Conference on Tools With Artificial Intelligence, pp. 253-259, New Orleans Louisiana, Nov. 6-9, 1994. (Conference)

[203]. S. Michos and N. Fakotakis: FRIENDOS: a Self-Extending Natural Language Interface to MS-DOS Operating System, AI’94, 14th International Avignon Conference, pp. 13-22, Paris, May 30-June 3, 1994. (Conference)

[204]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: A Flexible Modular Semantic Parser for the Greek Language, Technika Chronika, Scientific Journal of the Technical Chamber of Greece 1993, Vol. 13, No. 4, pp. 65-75, Dec. 1993. (Journal)

[205]. D. Tambakas, G. Epitropakis, N. Fakotakis and G. Kokkinakis: A Voice Interactive Educational System, Joint ESCA-NATO/Rsg 10 Tutorial and Research Workshop, on Applications of Speech Technology, pp. 187-190, Bavaria, Germany, Sept. 16-17, 1993. (Conference)

[206]. G. Epitopakis, N. Yiourgalis, P. Pierros, K. Kesentes, N. Fakotakis and G. Kokkinakis: An Improved Greek Leading Machine for Visually Impaired Persons, Speech and Language Technology for Disabled Persons, Proceedings of an ESCA Workshop, Stockholm, Sweden, pp. 199-202, May 31-June 2, 1993. (Conference)

[207]. N. Fakotakis, E. Tsopanoglou and G. Kokkinakis: A Text-Independent Speaker Recognition System Based on Vowel Spotting, Speech Communication Journal, Vol. 12, No. 1, pp. 57-68, March 1993. (Journal)

[208]. G. Epitropakis, D. Tambakas, N. Fakotakis and G. Kokkinakis: Duration Modelling for the Greek Language, EUROSPEECH'93, 3rd European Conference on Speech Communications and Technology, pp. 1995-1998, Berlin, Germany, Sept. 21-23, 1993. (Conference)

[209]. S. Michos, N. Fakotakis and G. Kokkinakis: Flexible Script-Handling Techniques for Natural Language Understanding Systems, TAI’93, 5th IEEE International Conference on Tools With Artificial Intelligence, Boston, Massachusetts, pp. 486-487, Nov. 8-11, 1993. (Conference)

[210]. K. Lambropoulou and N. Fakotakis: A Telephone Banking System Based on HMM Keyword Recognition, EUROSPEECH'93, 3rd European Conference on Speech Communications and Technology, pp. 1875-1878, Berlin, Germany, Sept. 21-23, 1993. (Conference)

[211]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: A Modular Morphological Analysis Model for an Inflectionally Rich Language, AVIGNON'92, 12th International Conference on Artificial Intelligence, Expert Systems and Natural Language Processing and its Application, Vol. 3, pp. 248-256, Avignon, France, June 1-6, 1992. (Conference)

[212]. N. Fakotakis, E. Tsopanoglou and G. Kokkinakis: Speaker Verification over Telephone Lines Based on Digit Strings, EUSIPCO’92, 6th European Signal Processing Conference, pp. 399-402, Brussels, Aug. 25-28, 1992. (Conference)

[213]. N. Fakotakis, E. Tsopanoglou and G. Kokkinakis: Text Independent Speaker Recognition Based on Vowel Spotting, IEE 6th International Conference, Processing of Signals in Communications, pp. 272-277, Loughborough, Sept. 2-5, 1991. (Conference)

[214]. J. Mourjopoulos, A. Tsopanoglou and N. Fakotakis: A Vector Quantization Approach for Room Transfer Function Classification, ICASSP’91, IEEE International Conference on Acoustics, Speech, Signal Processing, pp. 3593-3596, Toronto, May 14-17, 1991. (Conference)

[215]. E. Dermatas, N. Fakotakis and G. Kokkinakis: Fast Endpoint Detection Algorithm for Isolated Word Recognition in Office Environment, ICASSP’91, IEEE International Conference on Acoustics, Speech, Signal Processing, pp. 733-736, Toronto, May 14-17, 1991. (Conference)

[216]. N. Fakotakis, A. Tsopanoglou and G. Kokkinakis: Text Independent Speaker Recognition Based on Vowel Labeling, DSP’91, International Conference on Digital Signal Processing, pp. 447-452, Florence, Sept. 4-6, 1991. (Conference)

[217]. K. Sgarbas, N. Fakotakis and G. Kokkinakis: A Temporal Analyzer for Unrestricted Text, RIAO’91, Conference on Intelligent Text and Image Handling, Vol. 2, pp. 764-773, Barcelona, Spain, April 2-5, 1991. (Conference)

[218]. E. Dermatas, N. Fakotakis and G. Kokkinakis: Improved Speaker Independent Isolated Word Recognition System for Small Vocabularies, EUROSPEECH'89, European Conference on Speech Communication and Technology, pp. 86-90, Paris, Sept. 26-28, 1989. (Conference)

[219]. E. Dermatas, N. Fakotakis and G. Kokkinakis: An Algorithm for Improved Codebook Design Vector Quantizer, EUSIPCO’88, European Signal Processing Conference, pp. 1007-1010, Grenoble, Sept. 5-8, 1988. (Conference)

[220]. N. Fakotakis, E. Dermatas and G. Kokkinakis: Optimum Reference Construction and Updating for Speaker Recognition System, EUROSPEECH'87, European Conference on Speech Technology, pp. 460-464, Edinburgh, Sept. 2-4, 1987. (Conference)

[221]. E. Dermatas, N. Fakotakis and G. Kokkinakis: A New Algorithm for Optimum Reference Templates Creation in Speech Recognition Systems, DSP'87, International Conference on Digital Signal Processing, pp. 529-533, Florence, Sept. 7-10, 1987. (Conference)

[222]. E. Dermatas, N. Fakotakis and G. Kokkinakis: Improved Reference Pattern Establishment for Speech Recognition, AFCET, IASTED, International Symposium: Identification and Pattern Recognition, Vol. 2, pp. 819-834, Toulouse, Jun. 18-20, 1986. (Conference)

[223]. N. Fakotakis, E. Dermatas and G. Kokkinakis: Optimal Decision Thresholds for Speaker Verification, EUSIPCO'86, Third European Signal Processing Conference, Vol. 1, pp. 585-588, Hague, Sept. 2-5, 1986. (Conference)

[224]. N. Fakotakis and G. Kokkinakis: Automatic Speaker Recognition Based on a Small Number of Specially Selected Formant Values, MELECON'85, Mediterranean Electrotechnical Conference, Vol. 2, pp. 657-660, Madrid, Oct. 8-10, 1985. (Conference)

[225]. N. Fakotakis and G. Kokkinakis: Feature Extraction from Formant Trajectories for Speaker Identification Purposes, IASTED International Symposium, MECO'83, Vol. 1, pp. 270-274, Athens, Aug. 29-Sept. 2, 1983. (Conference)

Teaching

Teaching Interests: 
Speech Technology
Artificial Intelligence
Digital Logic Design

Projects

Involvement: 

Other

Awards and Prizes: 

Membership of Societies and Professional Bodies: 

Prof. Fakotakis is a member of the Executive Board of ELSNET (European Language and Speech Network of Excellence), Editor-in-Chief of the "European Student Journal on Language and Speech", WEB-SLS. He is also a member of IEEE, TEE, EURASIP, ESCA.