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TCTS Lab Staff
 
 



Christophe RIS

[Groups] [Publications]

Senior Researcher  

University of Mons (UMONS) 
Engineering Faculty of Mons (FPMs) 

Numediart Research Institute  
Infortech Research Institute  
TCTS Lab  
31, Boulevard Dolez  
B-7000 Mons (Belgium)  

phone: +32 65 374777  
fax: +32 65 374729  


Christophe Ris holds an electrical engineering from the Faculté Polytechnique de Mons (1993). From 1993 to 2010, he has been a researcher in the speech processing lab of FPMs in the field of automatic speech recognition.
Groups :

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Publications :

Regular Papers in Journals

2005
E. MENGUSOGLU, C. RIS, 2005, "Use of acoustic prior information for confidence measure in ASR (automatic speech recognition) applications", in Acoustics Research Letters Online (ARLO), Vol. 6, Issue 2, pp. 92-98, April 2005.
2003
F. MALFRERE, O. DEROO, T. DUTOIT, C. RIS, 2003, "Phonetic alignement : speech-synthesis-based versus Viterbi-based", Speech Communication, vol. 40, n°4, pp. 503-517.
2000
C. RIS, S. DUPONT, 2000, "Assessing Local Noise Level Estimation Methods: Application to Noise Robust ASR", Speech Communication.

Papers in Conference Proceedings

2005
S. DUPONT, C. RIS, L. COUVREUR, J.M. BOITE, 2005, "A study of implicit and explicit modeling of coarticulation and pronunciation variation", proc. of Interspeech 2005, Lisboa, Sept. 2005.
L. COUVREUR, J.M. BOITE, S. DUPONT, C. RIS, 2005, "Confidence Measure Normalization for Robust Selection of ASR Agents", Proceeding of the International Conference on Speech and Computer (SPECOM-2005), vol. 1, pp. 369-372, Patras, Greece, October 2005.
S. DUPONT, C. RIS, O. DEROO, S. POITOUX, 2005, "Feature Extraction and Acoustic Modeling: an Approach for Improved Generalization across Langagues and Accents", proc. of ASRU 2005, San Juan, Puerto Rico, Dec. 2005.
2004
S. DUPONT, C. RIS, 2004, "Combined use of close-talk and throat microphones for improved speech recognition under non-stationary background noise", proc. of Robust 2004 (Workshop (ITRW) on Robustness Issues in Conversational Interaction), Norwich, Aug. 2004.
C. RIS, L. COUVREUR, 2004, "Improving ASR performance on PDA by contamination of training data", proc. of Specom 2004, 9-th International Conference on Speech and Computer, St. Petersburg, Sept. 2004.
2003
M. BAGEIN, O. PIETQUIN, C. RIS, G. WILFART, 2003, "An Architecture for Voice-Enabled Interfaces over Local Wireless Networks", Proc. of the 7th World Multiconference on Systemics, Cybernetics and Informatics (SCI 2003), Orlando (Florida, USA) July 2003.
M. BAGEIN, O. PIETQUIN, C. RIS, G. WILFART, 2003, "Enabling Speech Based Access to Information Management Systems over Wireless Network", Proc. of the 3rd workshop on Applications and Services in Wireless Networks (ASWN 2003), Berne (Switzerland), july 2003.
S. DUPONT, C. RIS, 2003, "Robust Feature Extraction and Acoustic Modeling at Multitel: Experiments on the Aurora Databases", proc. Eurospeech 2003, Genève, pp. 1789-1792.
2002
L. COUVREUR, C. RIS, 2002, "Model-based Independent Component Analysis for Robust Multi-Microphone Automatic Speech Recognition", Proceedings of the International Conference on Spoken Language Processing (ICSLP'02), vol. 3, pp. 2189-2192, Denver, USA, September 2002.
T. DUTOIT, L. COUVREUR, C. RIS, F. MALFRERE, V. PAGEL, 2002, "Synthèse Vocale et Reconnaisance de la Parole : Droites Gauches et Mondes Parallèles", Actes du 6è Congrès Français d'Acoustique, Lille, 8-11 avril 2002.
2001
L. COUVREUR, J.M. BOITE, S. DUPONT, C. RIS, C. COUVREUR, 2001, "Fast Adaptation for Robust Speech Recognition in Reverberant Environments", Proceedings of International Workshop on Adaptation Methods for Speech Recognition (ITRW-2001), pp. 85-88, Sophia-Antipolis, France, August.
L. COUVREUR, C. RIS, C. COUVREUR, 2001, "Model-based Blind Estimation of Reverberation Time: Application to Robust ASR in Reverberant Environments", Proceedings of European Conference on Speech Communication and Technology (EUROSPEECH-2001), vol. 4, pp. 2631-2634, Aalborg, Denmark, September 2001.
S. DUPONT, C. RIS, 2001, "Multiband with Contaminated Training Data", Proc. CRAC Workshop (EUROSPEECH 2001 satellite event), Aalborg, Danemark, Sept. 2001.
E. MENGUSOGLU, C. RIS, 2001, "Use of Acoustic Prior Information for Confidence Measure in ASR Applications", Proceedings of European Conference on Speech Communication and Technology (EUROSPEECH-2001), Vol. 4, pp 2557-2561, Aalborg, September 2001.
2000
L. COUVREUR, C. RIS, C. COUVREUR, 2000, "A Corpus-Based Approach for Robust ASR in Reverberant Environments", Proc. International Conference on Spoken Language Processing (ICSLP'2000), Beijing, China, October 2000.
O. DEROO, C. RIS, S. GIELEN, J. VANPARYS, 2000, "Automatic Detection of Mispronounced Phonemes for Language Learning Tools", Proc. International Conference on Spoken Language Processing (ICSLP'2000), Beijing, China, paper #01732, October 2000.
1999
S. DUPONT, C. RIS, 1999, "Assessing Local Noise Level Estimation Methods", Proc. Workshop on Robust Methods For Speech Recognition in Adverse Conditions (Nokia, COST249, IEEE), Tampere, Finland.
1998
O. DEROO, T. DUTOIT, C. RIS, F. MALFRERE, 1998, "Modeles Hybrides et reconnaissance de la parole continue independante du locuteur en francais", Proc. XXIIèmes Journées d'Etudes sur la Parole, Martigny, pp. 401-404.
1997
S. DUPONT, J.M. BOITE, C. RIS, O. DEROO, V. FONTAINE, L. ZANONI, 1997, "Context Independent and Context Dependent Hybrid HMM/ANN Systems for Training Independent Tasks", Proc. of EUROSPEECH'97, Rhodes, Grèce, pp. 1947-1950.
J. HENNEBERT, C. RIS, H. BOURLARD, N. MORGAN, S. RENALS, 1997, "Estimation of Global Posteriors and Forward-Backward Training of Hybrid HMM/ANN Systems", Proc. Eurospeech'97, Rhodes, pp. 1951-1954.
V. FONTAINE, J.M. BOITE, C. RIS, 1997, "Nonlinear Discriminant Analysis for Improved Speech Recognition", Proc. of EUROSPEECH'97, Rhodes, Grèce.
S. DUPONT, C. RIS, H. BOURLARD, 1997, "Robust Speech Recognition Based on Multi-Stream Features", Proc. of ESCA/NATO Workshop on Robust Speech Recognition for Unknown Communication Channels, Pont-à_Mousson, France, pp. 95-98.
J.M. BOITE, S. DUPONT, C. RIS, F. BATAILLE, O. DEROO, V. FONTAINE, L. ZANONI, 1997, "STRUT : Un logiciel complet pour l'entrainement et la reconnaissance de la parole", Proc. Premières Journées Scientifiques et Techniques FRANCIL, pp 41-44, Avignon.
1996
H. BOURLARD, C. RIS, Y. KONING, N. MORGAN, 1996, "A New Training Algorithm for Hybrid HMM/ANN Speech Recognition Systems", Proceedings EUSIPCO'96, pp.1583-1586, Trieste.
C. RIS, V. FONTAINE, H. LEICH, 1996, "Comparison Between Two Hybrid HMM/MLP Approaches in Speech Recognition", Proceedings ICASSP 96, Atlanta, pp. 3362-3365.
O. DEROO, H. LEICH, J.M. BOITE, S. DUPONT, C. RIS, V. FONTAINE, 1996, "Hybrid HMM/ANN systems for Speaker Independant Continuous Speech Recognition In French", Proc. ProRisc 8th Annual WorkShop on Circuits, System and Signal Processing, Mierlo, The Netherlands, pp. 137-141.
V. FONTAINE, H. LEICH, C. RIS, 1996, "Maximum Mutual Information Codebook Mapping for Discrete Hidden Markov Models", Proceedings ICASSP 96, Atlanta, pp. 593-596.
V. FONTAINE, H. LEICH, C. RIS, 1996, "Nonlinear Discriminant Analysis with Neural Networks for Speech Recognition", Proc. EUSIPCO 96, pp 1583-1586, Trieste.
1995
C. RIS, H. LEICH, V. FONTAINE, 1995, "Speech analysis based on Malvar wavelet transform", Proceedings ICAASP-95, pp. 389-392.
1994
C. RIS, H. DEDIEU, M. HASLER, 1994, "Order Estimation and Nonlinear Prediction with Radial Basis Functions", Proceedings EUSIPCO 94, pp. 1492-1495.

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