Christian WELLEKENS
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Christian WELLEKENS
Professor Emeritus
+32 472 46 91 77
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My EURECOM publications
Journal
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October 2007
Journal
Automatic speech recognition and speech variability: A review
Speech Communication, Volume 49, Issues 10-11, October-November 2007
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October 2007
Journal
Introduction to the special issue on intrinsic speech variations
Speech Communication, Volume 49, Issues 10-11, October-November 2007
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November 2006
Journal
Least squares filtering of speech signals for robust ASR
Speech Communication, Volume 48, Issue 11, November 2006
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September 2006
Journal
On variable-scale piecewise stationary spectral analysis of speech signals for ASR
Speech Communication, Volume 48, Issue 9, September 2006
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October 2005
Journal
Regroupement de modèles de locuteurs par méthode Bayesienne variationnelle: applications à la sélection de modèles par méthode variationnelle pour l’indexation audio
t.a.l.,traitement automatique des langues, Volume 45 N° 3, octobre 2005. Numero spécial des meilleurs articles JEP-TALN 2004
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January 2004
Journal
Editorial of Special issue on adaptation methods for speech recognition
Speech Communication Volume 42, Issue 1, January 2004
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July 2001
Journal
The ISCA technical and research workshop : adaptation methods in automatic speech recognition, Sophia-Antipolis, France
The Phonetician, Number 84, 2001-II, International Society of Phonetic Sciences
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September 2000
Journal
DISTBIC : A speaker-based segmentation for audio data indexing
Speech Communication, Volume 32, N°1-2, 2000
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March 2000
Journal
Eigenvoices : a compact representation of speakers in a model space
Annales des télécommunications, Volume 55, N°3-4, Mars-avril 2000
Conference
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April 2007
Conference
Variational Bayesian learning of speech GMMS for feature enhancement based on Algonquin
ICASSP 2007, 32nd IEEE International Conference on Acoustics, Speech, and Signal Processing, April 15 - 20, 2007, Honolulu, USA
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December 2006
Conference
Speech recognition in reverberant environments using remote microphones
ISM 2006, 8th IEEE International Symposium on Multimedia, December 11-13, 2006, San Diego, USA
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November 2006
Conference
Diagnostics of speech recognition using classification phoneme diagnostic trees
CI 2006, 2nd IASTED International Conference on computational intelligence, Special Session on NLP, November 20-22, 2006 San Francisco, USA
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September 2006
Conference
N-Best parallel maximum likelihood beamformers for robust speech recognition
EUSIPCO 2006, European Signal Processing Conference, September 4-8, 2006, Firenze, Italy
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June 2006
Conference
Improving robustness of a likelihood-based beamformer in a real environment for automatic speech recognition
SPECOM 2006, 11th International Conference Speech and Computer, June 25-29, 2006, Saint-Petersburg, Russia
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June 2006
Conference
Impact of variabilities on speech recognition
SPECOM 2006, 11th International Conference Speech and Computer, June 25-29, 2006, Saint-Petersburg, Russia
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June 2006
Conference
Emotional aspects of intrinsic speech variabilities in automatic speech recognition
SPECOM 2006, 11th International Conference Speech and Computer , June 25-29, 2006, Saint-Petersburg, Russia
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June 2006
Conference
Reconnaissance robuste de parole en environnement reél à l'aide d'un réseau de microphones à formation de voie adaptative basée sur un critère des N-best vraisemblance maximale
JEP 2006, Journées d'Etudes sur la Parole, 12-16 juin 2006, Dinard, France
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May 2006
Conference
Comparative study of different features on OLLO logatome recognition task
SRIV 2006, ITRW on Speech Recognition and Intrinsic Variation, May 20, 2006, Toulouse, France
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May 2006
Conference
Fepstrum and carrier signal decomposition of speech signals through homomorphic filtering
ICASSP 2006, 31st International Conference on Acoustics, Speech, and Signal Processing, Special session, Dealing with intrinsic speech variabilities in ASR, Volume 5, May 14-19, 2006, Toulouse, France
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May 2006
Conference
Automatic speech recognition and intrinsic speech variation
ICASSP 2006, 31st International Conference on Acoustics, Speech, and Signal Processing, May 14-19, 2006, Toulouse, France
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November 2005
Conference
Fepstrum representation of speech signal
ASRU 2005, IEEE Automatic Speech Recognition and Understanding Workshop, November 27-December 1, 2005, Cancun, Mexico
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November 2005
Conference
Adaptive enhancement of speech signals for robust ASR
ASIDE 2005, COST 278 Final Workshop and ISCA Tutorial and Research Workshop, 10-11 November 2005, Aalborg, Denmark
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September 2005
Conference
Variational Bayesian speaker change detection
Interspeech 2005, 9th European Conference on Speech Communication and Technology, September 4-8, 2005, Lisbon, Portugal
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September 2005
Conference
On variable-scale piecewise stationary spectral analysis of speech signals for ASR
Interspeech 2005, 9th European Conference on Speech Communication and Technology, September 4-8, 2005, Lisbon, Portugal
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July 2005
Conference
Variational Bayesian methods for audio indexing
MLMI 2005, 2nd Joint Workshop on Multimodal Interaction and Related Machine Learning Algorithms, July 11-13, 2005, Edinburgh, UK / Also published in LNCS Volume 3869/2006
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July 2005
Conference
A variable-scale piecewise stationary spectral analysis technique applied to the ASR
MLMI 2005, 2nd Joint Workshop on Multimodal Interaction and Related Machine Learning Algorithms, July 11-13, 2005, Edinburgh, UK / Also published in LNCS, Volume 3869/2006, 978-3-540-32549-9
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July 2005
Conference
Least squares filtering of speech signals for robust ASR
MLMI 2005, 2nd Joint Workshop on Multimodal Interaction and Related Machine Learning Algorithms, 11-13 July 2005, Edinburgh, UK - Also published as LNCS 3869
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March 2005
Conference
On desensitizing the Mel-cepstrum to spurious spectral components for robust speech recognition
ICASSP 2005, 30th IEEE International Conference on Acoustics, Speech, and Signal Processing, March 18-23, 2005- Philadelphia, USA
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March 2005
Conference
Variational bayesian adaptation for speaker clustering
ICASSP 2005, 30th IEEE International Conference on Acoustics, Speech, and Signal Processing, March 18-23, 2005- Philadelphia, USA
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March 2005
Conference
Variational bayesian feature saliency for audio type classification
ICASSP 2005, 30th IEEE International Conference on Acoustics, Speech, and Signal Processing, March 18-23, 2005- Philadelphia, USA
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October 2004
Conference
Scoring unknown speaker clustering : VB vs. BIC
ICSLP 2004, 8th International Symposium on Chinese Spoken Language Processing, October 4-8, 2004, Jeju Island, Korea
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August 2004
Conference
On de-emphasizing the spurious components in the spectral modulation for robust speech recognition
Robust 2004, COST 278 and ISCA Tutorial and Research Workshop Robustness Issues in Conversational Interaction August, 30-31, 2004, Norwich, UK
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May 2004
Conference
Variational Bayesian speaker clustering
Odyssey'2004, The speaker and language recognition workshop, May 31- June 3, 2004, Toledo, Spain
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May 2004
Conference
Variational Bayesian feature selection for gaussian mixture models
ICASSP 2004, 29th IEEE International Conference on Acoustics, Speech, and Signal Processing, May 17-21, 2004, Montreal, Canada
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April 2004
Conference
Regroupement bayesien variationnel des locuteurs
JEP 2004, 25èmes Journées d'Etude sur la Parole, 19-22 avril 2004, Fès, Maroc
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November 2003
Conference
Maximum entropy discrimination (MED) feature subset selection for speech recognition
ASRU 2003, IEEE Automatic Speech Recognition and Understanding Workshop, November 30-December 4, 2003, St Thomas, Virgin Islands, USA
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September 2003
Conference
Variational bayesian GMM for speech recognition
EUROSPEECH 2003, 8th european conference on speech communication and technology, September 1-4, 2003, Geneva, Switzerland
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April 2003
Conference
Symbolic speaker adaptation with phone inventory expansion
ICASSP 2003, 28th IEEE International Conference on Acoustics, Speech, and Signal Processing, April 6-10, 2003 - Hong Kong
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April 2003
Conference
Minimum classification error /eigenvoices training for speaker identification
ICASSP 2003, 28th IEEE International Conference on Acoustics, Speech, and Signal Processing, April 6-10, 2003 - Hong Kong
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September 2002
Conference
Lu factorization for feature transformation
ICSLP 2002, 7th International Conference on Spoken Language Processing, 16- 20 September 2002, Denver, USA
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May 2002
Conference
Piecewise linear constraints for model space adaptation
ICASSP 2002 , 27th IEEE International Conference on Acoustics, Speech and Audio Processing - May 13-17, 2002, Orlando, USA
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December 2001
Conference
Dynamic sharings of gaussian densities using phonetic features
ASRU 2001, IEEE Workshop on Automatic Speech Recognition and Understanding, December 9-13, 2001, Madonna di Campiglio, Trento, Italy
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December 2001
Conference
Construction of model-space constraints
ASRU 2001, IEEE Workshop on Automatic Speech Recognition and Understanding, December 9-13 2001, Madonna di Campiglio, Trento, Italy
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September 2001
Conference
Dynamic lexicon using phonetic features
EUROSPEECH 2001, 7th European Conference on Speech Communication and Technology, September 3-7, 2001, Aalborg, Denmark
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September 2001
Conference
Outils de navigation dans les fichiers audio
RJC'2001, Rencontres des Jeunes Chercheurs, Septembre 2001, Mons, Belgique
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August 2001
Conference
Self-adaptation using eigenvoices for large-vocabulary continuous speech recognition
ITRW 2001, Adaptation Methods for Automatic Speech Recognition, August 2001, Sophia-Antipolis, France
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June 2001
Conference
Seamless navigation in audio files
Odyssey'2001: a speaker odyssey, June 18-22, 2001, Crete, Greece
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October 2000
Conference
Regroupement par locuteur de messages vocaux
CORESA 2000, COmpression et REpresentation des Signaux Audiovisuels, 19-20 Octobre 2000, Poitiers, France
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June 2000
Conference
A speaker tracking system based on speaker turn detection for NIST evaluation
ICASSP 2000, 25th IEEE International conference on acoustic, speech and signal, June 5-9, 2000 - Istanbul, Turkey
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February 2000
Conference
Différentes stratégies pour le suivi de locuteur
RFIA'2000, Reconnaissance des Formes et Intelligence Artificelle, February 1-3, 2000, Paris, France
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November 1999
Conference
L'internationalisation par les télécommunications et pour les télécommunications
Journées des Techniques de l?Information et de la Communication, November 1999, Nice, France
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October 1999
Conference
A first step into speaker-based indexing
CBMI’99, 1st European Workshop on Content-Based Multimedia Indexing, October 25-27 1999, Toulouse, France
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September 1999
Conference
Maximum likelihood eigenspace and MLLR for speech recognition in noisy environments
EUROSPEECH 1999, ISCA Conference on Speech Communication and Technology, 4-10 September 1999, Budapest, Hungary
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September 1999
Conference
Detection of speaker changes in an audio document
EUROSPEECH 1999, ISCA Conference on Speech Communication and Technology, 4-10 September 1999, Budapest, Hungary
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June 1999
Conference
Amélioration des taux de reconnaissance par filtrage de données
CORESA 1999, 5èmes journées d'téudes et d'échanges COmpression et REprésentation des Signaux Audiovisuels, June 14-15, 1999, Sophia-Antipolis, France
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June 1999
Conference
Voix propres: Une représentation compacte de locuteurs dans l'espace des modèles
CORESA 1999, 5èmes journées d'téudes et d'échanges COmpression et REprésentation des Signaux Audiovisuels, June 14-15, 1999, Sophia-Antipolis, France
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June 1999
Conference
Audio data indexing : use of second order statistics for speaker-based segmentation
ICMCS 1999, IEEE International Conference on Multimedia Computing and Systems, June 7-11, 1999, Florence, Italy
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June 1999
Conference
Segmentation en locuteurs d'un document audio
CORESA 1999, 5èmes journées d'études et d'échanges COmpression et REprésentation des Signaux Audiovisuels, June 14-15, 1999, Sophia-Antipolis, France
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April 1999
Conference
Speaker-based segmentation for audio data indexing
ISCA Workshop on accessing information in audio data, April 19-20, 1999, Cambridge, UK
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November 1998
Conference
Enhanced ASR by acoustic feature filtering
ICSLP 1998, 5th International Conference on Spoken Language Processing, 30 November-4 December 1998, Sydney, Australia
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November 1998
Conference
The use of Meta-HMM in multistream HMM training for automatic speech recognition
ICSLP 1998, 5th International Conference on Spoken Language Processing, 30 November-4 December 1998, Sydney, Australia
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January 1998
Conference
Introduction to speech recognition using neural networks
ESANN 1998, 6th European Symposium on Artificial Neural Networks, April 22-24, 1998, Brussels, Belgium
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November 1997
Conference
Keyword spotting for multimedia document indexing
SPIE 1997, SPIE's International Symposium and Education Program on Voice, Video, and Data Communications, Volume 3229, November 1997, Dallas, USA
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April 1997
Conference
REMAP for video soundtrack indexing
ICASSP'97, 22nd IEEE International conference on acoustics, speech, and signal processing, April 21-24 1997, Munich, Germany
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October 1996
Conference
Keyword spotting enhancement for video soundtrack indexing
ICSLP 1996, IEEE 4th International Symposium on Chinese Spoken Language Processing, October 3-6, 1996, Philadelphia, USA
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May 1996
Conference
Keyword spotting for video soundtrack indexing
ICASSP 1996, 21st IEEE international conference on acoustics, speech, and signal proceedings, May 7-10, 1996, Atlanta, USA
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June 1993
Conference
Improved hidden Markov models for speech recognition through neural network learning
From statistics to neural networks : theory and pattern recognition applications, June 21-July 2, 1993, Les Arcs, France
Report
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February 2007
Report
Diagnostics of speech recognition : on evaluating feature set performance
Research report RR-07-190
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December 2006
Report
Investigations into tandem features
Research report RR-06-185
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June 2006
Report
Confidence measures for tandem connectionist feature extraction
Research report RR-06-166
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September 2004
Report
On desensitizing the Mel-cepstrum to spurious spectral components for robust speech recognition
Research report RR-04-119
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September 2004
Report
On multi-scale piecewise stationary spectral analysis of speech signals for robust ASR
Research report RR-04-118
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October 2003
Report
Maximum entropy discrimination (MED) feature subset selection for speech recognition
Research report RR-03-086
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October 2003
Report
Variational Bayesian features selection
Research report RR-03-087
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July 2003
Report
Variational bayesian learning for gaussian mixture models and hidden markov models
Research report RR-03-079
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September 1993
Report
Improved hidden Markov models for speech recognition through neural network learning
Research report RR-94-016
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About me
Additional info
Profiles
Distinctions
- He co-authored the paper winning the ISCA 2009 best paper award at the interspeech conference in Brighton, « Automatic speech recognition and speech variability: a review » published in the "Speech communication journal", Sept. 10, 2009.
- In 2005, he received the Christoffel Plantin Award (Belgium) as an outstanding Belgian personality working abroad.
