Journal Papers

• Mingote, V.; Miguel, A.; Ortega, A.; Lleida, E. "Class token and knowledge distillation for multi-head self-attention speaker verification systems". Digital Signal Processing, vol. 133, pp. 103859, 2022. DOI.

• Ribas, D.; Miguel, A.; Ortega, A.; Lleida, E.. "Wiener Filter and Deep Neural Networks: A Well-Balanced Pair for Speech Enhancement". Applied Sciences, vol. 12, no. 18, pp. 9000, 2022. DOI.

• Almudévar, A.; Sevillano, P.; Vicente, L.; Preciado-Garbayo, J.; Ortega, A. "Unsupervised Anomaly Detection Applied to Φ-OTDR". Sensors, vol. 22, no. 17, pp. 6515, 2022. DOI.

• Prieto, S.; Ortega, A.; López-Espejo, I.; Lleida, E. "Shouted and whispered speech compensation for speaker verification systems". Digital Signal Processing, vol. 127, pp. 103536, 2022. DOI.

• Gimeno, P.; Ribas, D.; Ortega, A.; Miguel, A.; Lleida, E. "Unsupervised Adaptation of Deep Speech Activity Detection Models to Unseen Domains". Applied Sciences, vol. 12, no. 4, pp. 1832, 2022. DOI.

• Mingote, V.; Miguel, A.; Ribas, D.; Ortega, A.; Lleida, E. "aDCF Loss Function for Deep Metric Learning in End-to-End Text-Dependent Speaker Verification Systems". IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 30, pp. 772-784, 2022. DOI.

• Mingote, V.; Viñals, I.; Gimeno, P.; Miguel, A.; Ortega, A.; Lleida, E. "Multimodal Diarization Systems by Training Enrollment Models as Identity Representations". Applied Sciences, vol. 12, no. 3, pp. 1141, 2022. DOI.

Conferences

• Gimeno, P.; Ortega, A.; Miguel, A.; Lleida, E. "A Study on the Use of wav2vec Representations for Multiclass Audio Segmentation" Iberspeech 2022. Granada, Spain. Novemberr 2021. DOI.

• Pastor, M.; Ribas, D.; Ortega, A.; Miguel, A.; Lleida, E. "Cross-Corpus Speech Emotion Recognition with HuBERT Self-Supervised Representation" Iberspeech 2022. Granada, Spain. Novemberr 2021. DOI.

• Ribas, D.; Pastor, M.; Miguel, A.; Martínez, D.; Ortega, A.; Lleida, E. "S3prl-Disorder: Open-Source Voice Disorder Detection System based in the Framework of S3PRL-toolkit" Iberspeech 2022. Granada, Spain. Novemberr 2021. DOI.

• Miguel, A.; Ortega, A.; Lleida, E. "ViVoLAB System Description for the S2TC IberSPEECH-RTVE 2022 challenge" Iberspeech 2022. Granada, Spain. Novemberr 2021.

Journal Papers

• Gimeno, P.; Ortega, A.; Miguel, A.; Lleida, E. "Generalising AUC Optimisation to Multiclass Classification for Audio Segmentation with Limited Training Data". IEEE Signal Processing Letters, 28 , pp. 1135-1139, 2021. DOI.

• Llombart, J.; Ribas, D.; Miguel, A.; Vicente, L.; Ortega, A.; Lleida, E. "Progressive Loss Functions for Speech Enhancement with Deep Neural Networks". EURASIP Journal on Audio, Speech, and Music Processing, 2021 (1), pp. 1-16, 2021. DOI.

• Viñals, I.; Ortega, A.; Miguel, A.; Lleida, E. "The Domain Mismatch Problem in the Broadcast Speaker Attribution Task". Applied Sciences, vol. 11, no. 18, p. 8521, Sept. 2021. DOI.

Conferences

• Gimeno, P; Ortega, A.; Miguel, A.; Lleida, E. "Unsupervised Representation Learning for Speech Activity Detection in the Fearless Steps Challenge 2021" 22nd Annual Conference of the International Speech Communication Association, INTERSPEECH 2021. Brno, Czech Republic. September 2021. DOI.

• Mingote, V.; Miguel, A.; Ortega, A.; Lleida, E. "Log-Likelihood-Ratio Cost Function as Objective Loss for Speaker Verification Systems" 22nd Annual Conference of the International Speech Communication Association, INTERSPEECH 2021. Brno, Czech Republic. September 2021. DOI.

• Gimeno, P.; Ribas, D.; Ortega, A.; Miguel, A.; Lleida, E. "Convolutional Recurrent Neural Networks for Speech Activity Detection in Naturalistic Audio from Apollo Missions" Fifth International Conference, IberSPEECH 2020. Valladolid, Spain. March 2021. DOI.

• Mingote, V.; Viñals, I.; Gimeno, P.; Miguel, A.; Ortega, A.; Lleida, E."ViVoLAB Multimodal Diarization System for RTVE 2020 Challenge" Fifth International Conference, IberSPEECH 2020. Valladolid, Spain. March 2021. DOI.

• Viñals, I.; Gimeno, P.; Ortega, A.; Miguel, A.; Lleida, E."Diarization and Identity Attribution Compatibility in the Albayzin 2020 Challenge" Fifth International Conference, IberSPEECH 2020. Valladolid, Spain. March 2021 DOI.

• Mingote, V.; Miguel, A.; Ortega, A.; Lleida, E." Memory Layers with Multi-Head Attention Mechanisms for Text-Dependent Speaker Verification" Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2021-June , 2021. DOI.

Journal Papers

• P. Gimeno, I. Viñals, A. Ortega, A. Miguel, E. Lleida "Multiclass audio segmentation based on recurrent neural networks for broadcast domain data". EURASIP Journal on Audio, Speech, and Music Processing, 5, March. 2020. DOI.

• V. Mingote, A. Miguel, A. Ortega, E. Lleida "Optimization of the area under the ROC curve using neural network supervectors for text-dependent speaker verification". Computer, Speech & Language , vol. 63, Sept. 2020. DOI.

Conferences

• V. Mingote, A. Miguel, A. Ortega, E. Lleida "Training Speaker Enrollment Models by Network Optimization" 21st Annual Conference of the International Speech Communication Association, INTERSPEECH 2020. Shanghai, China. October 2020.

• P. Gimeno, V. Mingote, A. Ortega, A. Miguel, E. Lleida "Partial AUC Optimisation using Recurrent Neural Networks for Music Detection with Limited Training Data" 21st Annual Conference of the International Speech Communication Association, INTERSPEECH 2020. Shanghai, China. October 2020.

• S. Prieto, A. Ortega, I. López-Espejo, E. Lleida "Shouted Speech Compensation for Speaker Verification Robust to Vocal Effort Conditions" 21st Annual Conference of the International Speech Communication Association, INTERSPEECH 2020. Shanghai, China. October 2020.

• V. Mingote, A. Miguel, D. Ribas, A. Ortega, E. Lleida "Knowledge Distillation and Random Erasing Data Augmentation for Text-Dependent Speaker Verification" ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Barcelona, Spain, 2020, pp. 6824-6828, DOI.

Journal Papers

• I. Viñals, A. Ortega, Jesus Villalba, A. Miguel, E. Lleida "Unsupervised adaptation of PLDA models for broadcast diarization". EURASIP Journal on Audio, Speech, and Music Processing, 24, Dec. 2019. DOI

• E. Lleida, A. Ortega, A. Miguel, V. Bazán-Gil, C. Pérez, M. Gómez, A. de Prada "Albayzin 2018 Evaluation: The IberSpeech-RTVE Challenge on Speech Technologies for Spanish Broadcast Media". Applied Sciences, vol. 9, no. 24, p. 5412, Dec. 2019. DOI

• I. Viñals, A. Ortega, A. Miguel, E. Lleida "An Analysis of the Short Utterance Problem for Speaker Characterization". Applied Sciences, vol. 9, no. 18, p. 3697, Sep. 2019. DOI

• V. Mingote, A. Miguel, A. Ortega, E. Lleida "Supervector Extraction for Encoding Speaker and Phrase Information with Neural Networks for Text-Dependent Speaker Verification". Applied Sciences, vol. 9, no. 16, p. 3295, Aug. 2019. DOI

Conferences

• I. Viñals, P. Gimeno, A. Ortega, A. Miguel, E. Lleida "ViVoLAB Speaker Diarization System for the DIHARD 2019 Challenge" 20th Annual Conference of the International Speech Communication Association, INTERSPEECH 2019. Graz, Austria. September 2019.

• V. Mingote, A. Miguel, D. Ribas, A. Ortega, E. Lleida "Optimization of False Acceptance/Rejection Rates and Decision Threshold for End-to-End Text-Dependent Speaker Verification Systems" 20th Annual Conference of the International Speech Communication Association, INTERSPEECH 2019. Graz, Austria. September 2019.

• V. Mingote, D. Castan, M. McLaren, M. Kumar Nandwana, A. Ortega, E. Lleida, Antonio Miguel"Language Recognition using Triplet Neural Networks" 20th Annual Conference of the International Speech Communication Association, INTERSPEECH 2019. Graz, Austria. September 2019.

• I. Viñals, D. Ribas, V. Mingote, J. Llombart, P. Gimeno, A. Miguel, A. Ortega, E. Lleida "Phonetically-aware embeddings, Wide Residual Networks with Time-Delay Neural Networks and Self Attention models for the 2018 NIST Speaker Recognition Evaluation" 20th Annual Conference of the International Speech Communication Association, INTERSPEECH 2019. Graz, Austria. September 2019.

• J. Llombart, D. Ribas Gonzalez, A. Miguel, L. Vicente, A. Ortega, E. Lleida "Speech Enhancement with Wide Residual Networks in Reverberant Environments" 20th Annual Conference of the International Speech Communication Association, INTERSPEECH 2019. Graz, Austria. September 2019.

• J. Llombart, D. Ribas Gonzalez, A. Miguel, L. Vicente, A. Ortega, E. Lleida "Progressive Speech Enhancement with Residual Connections" 20th Annual Conference of the International Speech Communication Association, INTERSPEECH 2019. Graz, Austria. September 2019.

Conferences

• I. Viñals, P. Gimeno, A. Ortega, A. Miguel, E. Lleida "Estimation of the Number of Speakers with Variational Bayesian PLDA in the DIHARD Diarization Challenge" 19th Annual Conference of the International Speech Communication Association, INTERSPEECH 2018. Hyderabad, India. September 2018.

• I. Viñals, P. Gimeno, A. Ortega, A. Miguel, E. Lleida "In-domain Adaptation Solutions for the RTVE 2018 Diarization Challenge" Fourth International Conference, IberSPEECH 2018. Barcelona, Spain. November 2018.

• V. Mingote, A. Miguel, A. Ortega, E. Lleida "Differentiable Supervector Extraction for Encoding Speaker and Phrase Information in Text Dependent Speaker" Fourth International Conference, IberSPEECH 2018. Barcelona, Spain. November 2018.

• J. Llombart, A. Miguel, A. Ortega, E. Lleida "Wide Residual Networks 1D for Automatic Text Punctuation" Fourth International Conference, IberSPEECH 2018. Barcelona, Spain. November 2018.

• I. Viñals, A. Ortega, A. Miguel, E. Lleida "Phonetic Variability Influence on Short Utterances in Speaker Verification" Fourth International Conference, IberSPEECH 2018. Barcelona, Spain. November 2018.

• P. Gimeno, I. Viñals, A. Ortega, A. Miguel, E. Lleida "A Recurrent Neural Network Approach to Audio Segmentation for Broadcast Domain Data" Fourth International Conference, IberSPEECH 2018. Barcelona, Spain. November 2018.

Conferences

• A. Miguel, J. Llombart, E. Lleida, A. Ortega "Tied Hidden Factors in Neural Networks for End-to-End Speaker Recognition" 18th Annual Conference of the International Speech Communication Association, INTERSPEECH 2017. Stockholm, Sweden. August 2017.

• I. Viñals, J. Villalba, A. Ortega, A. Miguel, E. Lleida "Domain Adaptation of PLDA models in Broadcast Diarization by means of Unsupervised Speaker Clustering" 18th Annual Conference of the International Speech Communication Association, INTERSPEECH 2017. Stockholm, Sweden. August 2017.

Journal Papers

• J. Villalba, A. Miguel, A. Ortega, E. Lleida "Bayesian Networks to Model the Variability of Speaker Verification Scores in Adverse Environments". IEEE/ACM Transactions on Audio, Speech, and Language Processing. December 2016.

• J. Villalba, A. Ortega, A. Miguel, E. Lleida. "Analysis of Speech Quality Measures for the Task of Estimating the Reliability of Speaker Verification Decisions" Speech Communication, Elsevier. April 2016.

Conferences

• I. Viñals, J. Villalba, A. Ortega, A. Miguel, E. Lleida "Bottleneck Based Front-End for Diarization Systems" Third International Conference, IberSPEECH 2016. Lisbon, Portugal. November 2016.

• J. Olcoz, P. Gimeno, A. Ortega, A. Arguedas, A. Miguel, E. Lleida "Automatic Text-to-Audio Alignment of Multimedia Broadcast Content" Third International Conference, IberSPEECH 2016. Lisbon, Portugal. November 2016.

• J. Olcoz, J. Llombart, A. Miguel, A. Ortega, E. Lleida "The ViVoLab-I3A-UZ System for Albayzin 2016 Search-on-Speech Evaluation" Third International Conference, IberSPEECH 2016. Lisbon, Portugal. November 2016.

• J. Llombart, A. Miguel, E. Lleida, A. Ortega "Character Sequence to Sequence Applications: Subtitle Segmentation and Part-of-Speech Tagging" Third International Conference, IberSPEECH 2016. Lisbon, Portugal. November 2016.

Journal Papers

• D. Castan, D. Tavarez, P. Lopez-Otero, J. Franco-Pedroso, H. Delgado, E. Navas, L. Docio-Fernández, D. Ramos, J. Serrano, A. Ortega, E. Lleida. "Albayzín-2014 evaluation: audio segmentation and classification in broadcast news domains". EURASIP Journal on Audio, Speech, and Music Processing. December 2015.

• D. Martinez, E. Lleida, P. Green, H. Christensen, A. Ortega, A. Miguel. "Intelligibility Assessment and Speech Recognizer Word Accuracy Rate Prediction for Dysarthric Speakers in a Factor Analysis Subspace" ACM Transactions on Accessible Computing 6(3):1-21 June 2015.

Conferences

• J. Villalba, A. Miguel, A. Ortega, E. Lleida "Variational Bayesian PLDA for Speaker Diarization in the MGB Challenge" 2015 IEEE Automatic Speech Recognition and Understanding Workshop (ASRU 2015). Scottsdale, Arizona, USA. December 2015.

• J. Villalba, A. Miguel, A. Ortega, E. Lleida "Spoofing Detection with DNN and One-class SVM for the ASVspoof 2015 Challenge" 16th Annual Conference of the International Speech Communication Association, INTERSPEECH 2015. Dresden, Germany. September 2015.

Journal Papers

• D. Castan, A. Ortega, A. Miguel, E. Lleida. "Audio Segmentation-by-Classification Approach Based on Factor Analysis in Broadcast News Domain" EURASIP Journal on Audio, Speech, and Music Processing. Vol. 34. August 2014.

• J. E. García, A. Ortega, A. Miguel, E. Lleida. "Low Bit Rate Compression Methods of Feature Vectors for Distributed Speech Recognition" Speech Communication, Elsevier. Vol. 58. pp. 111-123. March 2014.

Conferences

• A. Miguel, J. Villalba, A. Ortega, E. Lleida, C. Vaquero "Factor Analysis with Sampling Methods for Text Dependent Speaker Recognition" 15th Annual Conference of the International Speech Communication Association, INTERSPEECH 2014. Singapore September 2014.

• D. Martínez, J. Villalba, E. Lleida, A. Ortega"Unsupervised Accent Modeling for Language Identification" Iberspeech 2014. Las Palmas de Gran Canaria (Spain) November 2014.

• J. Olcoz, A. Ortega, A. Miguel, E. Lleida"Confidence Measures in Automatic Speech Recognition for Error Detection in Restricted Domains" Iberspeech 2014. Las Palmas de Gran Canaria (Spain) November 2014.

• D. Castán, A. Ortega, A. Miguel, E. Lleida"A preliminary study of Acoustic Events Classification with Factor Analysis in Meeting Rooms" Iberspeech 2014. Las Palmas de Gran Canaria (Spain) November 2014.

• A. Miguel, J. Olcoz, J. Villalba, A. Ortega, E. Lleida"Albayzin 2014 Search on Speech @ ViVolab UZ" Iberspeech 2014. Las Palmas de Gran Canaria (Spain) November 2014.

• A. Arguedas, E. Lleida, A. Ortega, A. Miguel, J. E. García"Subtitling Tools Based On Automatic Speech Recognition" Iberspeech 2014. Las Palmas de Gran Canaria (Spain) November 2014.

Journal Papers

• C. Vaquero, A. Ortega, A. Miguel, E. Lleida. "Quality Assessment for Speaker Diarization and its Application in Speaker Characterization" IEEE Transactions on Audio, Speech, and Language Processing. Vol. 21. pp. 816-827. April 2013.

Conferences

• D. Castán, A. Ortega, J. Villalba, A. Miguel, E. Lleida "Segmentation-by-classification system based on factor analysis" IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP). Vancouver (Canada) May 2013.

• D. Martinez, E. Lleida, A. Ortega, A. Miguel "Prosodic features and formant modeling for an ivector-based language recognition system" IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP). Vancouver (Canada) May 2013.

• J. Villalba, E. Lleida, A. Ortega, A. Miguel "A New Bayesian Network to Assess the Reliability of Speaker Verification Decisions" 14th Annual Conference of the International Speech Communication Association, INTERSPEECH 2013. Lyon (France) August 2013.

• J. Villalba, E. Lleida, A. Ortega, A. Miguel "The I3A Speaker Recognition System for NIST SRE12: Post-evaluation Analysis"14th Annual Conference of the International Speech Communication Association, INTERSPEECH 2013. Lyon (France) August 2013.

• D. Martínez, D. Ribas, E. Lleida, A. Ortega, A. Miguel "Suprasegmental Information Modelling for Autism Disorder Spectrum and Specific Language Impairment Classification" 14th Annual Conference of the International Speech Communication Association, INTERSPEECH 2013. Lyon (France) August 2013.

• D. Castán, A. Ortega, A. Miguel, E. Lleida "Broadcast News Segmentation with Factor Analysis System" SLAM 2013 Speech, Language and Audio in Multimedia. Marseille (France) August 2013.

Conferences

• L. J. Rodriguez, M. Penagarikano, A. Varona, M. Diez, G. Bordel, A. Abad, D. Martinez, J. Villalba, A. Ortega, E. Lleida "The BLZ Submission to the NIST 2011 LRE: Data Collection, System Development and Performance" 13th Annual Conference of the International Speech Communication Association. Interspeech 2012. Portland (Oregon, USA) September 2012.

• A. Ortega, C. Vaquero, A. Miguel, E. Lleida "Diarization for Speaker Characterization" VI Jornadas de Reconocimiento Biométrico de Personas JRBP 2012. Las Palmas de Gran Canaria (Spain) February 2012.

• J. Villalba, E. Lleida, A. Ortega, A. Miguel "Reliability Estimation of the Speaker Verification Decisions Using Bayesian Networks to Combine Information from Multiple Speech Quality Measures" Iberspeech 2012. Madrid (Spain) November 2012.

• D. Castán, A. Ortega, E. Lleida "Factor Analysis Segmentation and Classification in Broadcast News Domain"Iberspeech 2012. Madrid (Spain) November 2012.

• D. Martínez, E. Lleida, A. Ortega, A. Miguel, J. Villalba "Voice Pathology Detection on the Saarbrücken Voice Database with Calibration and Fusion of Scores Using Mul-tiFocal Toolkit" Iberspeech 2012. Madrid (Spain) November 2012.

• D. Martínez, E. Lleida, A. Ortega, A. Miguel, J. Villalba "Score Level versus Audio Level Fusion for Voice Pathology Detection on the Saarbrücken Voice Database" Iberspeech 2012. Madrid (Spain) November 2012.

• D. Ribas, J. E. Garcia, A. Miguel, A. Ortega, E. Lleida, J. R. Calvo "Evaluation of a New Beam-Search Formant Tracking Algorithm in Noisy Environments"Iberspeech 2012. Madrid (Spain) November 2012.

Journal Papers

• A. Miguel , A. Ortega, L. Buera, E. Lleida. "Bayesian Networks for Discrete Observation Distributions in Speech Recognition"IEEE Transactions on Audio, Speech, and Language Processing. Vol. 19. No. 6. pp. 1476-1489. August 2011.

Conferences

• C. Vaquero, A. Ortega, E. Lleida. "Intra-session variability compensation and hypothesis generation and selection strategy for speaker segmentation" .International Conference on Acoustics, Speech and Signal Processing ICASSP 2011. Prague (CZech Republic). May 2011.

• D. Castán, Carlos Vaquero, A. Ortega, D. Martínez, J. Villalba, E. Lleida. "Hierarchical Auido Segmentation with HMM and Factor Analysis in Broadcast News Domain" Interspeech 2011. Florence (Italy) August 2011.

• D. Martínez, J. Villalba, A. Miguel, A. Ortega, E. Lleida. "I3A Language Recognition System for Albayzin 2010 LRE"Interspeech 2011, Florence (Italy). August 2011.

• C. Vaquero, A. Ortega, E. Lleida. "Partitioning of Two-Speaker Conversation Datasets" .Interspeech 2011. Florence (Italy) August 2011.

Journal Papers

• L. Buera, A. Miguel, O. Saz, A. Ortega, E. Lleida. "Unsupervised Data-Driven Feature Vector Normalization With Acoustic Model Adaptation for Robust Speech Recognition" .IEEE TRANSACTIONS ON AUDIO, SPEECH, AND LANGUAGE PROCESSING, VOL. 18, NO. 2, Februrary 2010. pp. 296-309.

Conferences

• C. Vaquero, A. Ortega, J. A. Villalba, A. Miguel, E. Lleida. "Confidence Measures for Speaker Segmentation and their Relation to Speaker Verification" .Interspeech 2010, Makuhari (Japan). September 2010.

• J. E. García, A. Ortega, A. Miguel, E. Lleida. "Non-Linear Predictive Vector Quantization of Feature Vectors for Distributed Speech Recognition"Interspeech 2010, Makuhari (Japan). September 2010.

• O. Saz, E. Lleida, J. E. Garcia, A. Ortega. "A Prototype of Distributed Speech Technologies for the Development of Websites Accessible to the Blind Community" FALA 2010 "VI Jornadas en Tecnología del Habla" and II Iberian SLTech Workshop. November. 2010.

• C. Vaquero, A. Ortega, E. Lleida. "Intra-session variability compensation for speaker segmentation" FALA 2010 "VI Jornadas en Tecnología del Habla" and II Iberian SLTech Workshop. November 2010.

• J. E. García, A. Ortega, A. Miguel, E. Lleida. "Predictive vector quantization using the M-algorithm for distributed speech recognition" FALA 2010 "VI Jornadas en Tecnología del Habla" and II Iberian SLTech Workshop. November 2010.

• D. Becerril, Oscar Saz, C. Vaquero, A. Ortega, E. Lleida. "Speaker Tree Generation for Model Selection in Automatic Speech Recognition" .FALA 2010 "VI Jornadas en Tecnología del Habla" and II Iberian SLTech Workshop. November 2010.

• D. Castán, A. Ortega, E. Lleida. "Speech/Music classification by using the C4.5 decision tree algorithm" .FALA 2010 "VI Jornadas en Tecnología del Habla" and II Iberian SLTech Workshop. November 2010.

Book Chapters

• L. Buera, A. Miguel, E. Lleida, A. Ortega, O. Saz. "Cross-Probability Model Based on GMM for Feature Vector Normalization" Chapter 14 in "In-Vehicle Corpus and Signal Processing for Driver Behavior" H. Abut, J.H.L. Hansen, Hakan Erdogan and K. Takeda (Eds.), Springer Science, New York, NY. 2009.

Conferences

• J.E. García, A. Ortega, E. Lleida, T. Lozano, E. Bernués, D. Sánchez. "Audio and Text Synchronization for TV news Subtitling based on Automatic Speech Recognition" .IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB). May. 2009.

• J.E. García, A. Ortega, A. Miguel, E. Lleida. "Differential Vector Quantization of Feature Vectors for Distributed Speech Recognition" .10th Annual Conference of the International Speech Communication Association. INTERSPEECH 2009. September. 2009.

• A. Miguel, A. Ortega, L. Buera, E. Lleida. "Graphical Models for Discrete Hidden Markov Models in Speech Recognition" .10th Annual Conference of the International Speech Communication Association. INTERSPEECH 2009. September. 2009.

• A. Miguel, A. Ortega, Luis Buera, E. Lleida. "Local Projections and Support Vector Based Feature Selection in Speech Recognition" .10th Annual Conference of the International Speech Communication Association. INTERSPEECH 2009. September. 2009.

• A. Ortega, J.E. García, A. Miguel, E. Lleida. "Real-Time Live Broadcast News Subtitling System for Spanish" .10th Annual Conference of the International Speech Communication Association. INTERSPEECH 2009. September. 2009.

• L. Buera,, A. Miguel, A. Ortega, E. Lleida, R. M. Stern. "Unsupervised Training Scheme with Non-Stereo Data for Empirical Feature Vector Compensation" .10th Annual Conference of the International Speech Communication Association. INTERSPEECH 2009. September. 2009.

• A. Ortega, J.E. García, E. Lleida, E. Bernués, D. Sánchez, M. Ferrer. "Subtitulado en Tiempo Real de Informativos en Directo para la Televisión Mediante Reconocimiento Automático del Habla" . IV Congreso de Accesibilidad a los Medios Audiovisuales para Personas con Discapacidad. AMADIS 09. June 2009.

Journal Papers

• A. Miguel, E. Lleida, R. Rose, L. Buera, O. Saz, A. Ortega. "Capturing local variability for speaker normalization in speech recognition" .IEEE Trans on Audio, Speech and Language Processing, Vol 16, No 3, pp 578-593 . March 2008.

Conferences

• L. Buera, A. Miguel, O. Saz, A. Ortega, E. Lleida. "Feature Vector Normalization with Combined Standard and Throat Microphones for Robust ASR" .Interspeech 2008. September 2008.

• J. A. Villalba, C. Vaquero, E. Lleida, A. Ortega, A. Miguel, J. E. García, L. Buera, O. Saz. "Experiencia del I3A en la Evaluación de Reconocimiento de Locutor NIST 2008" Jornadas de Reconocimiento Biométrico de Personas, Valladolid, España. September 2008.

• J.E. García, A. Ortega, A. Miguel, E. Lleida. "Arquitectura distrubuida para el desarrollo de sistemas de diálogo hablado, edecán" V jornadas en tecnología del habla. November 2008.

• J. E. García, A. Ortega, A. Miguel, E. Lleida. "Cuantificación vectorial diferencial para la transmisión eficiente de parámetros acústicos en sistemas de reconocimiento automático del habla distribuido" V Jornadas en tecnología del habla. November 2008.

• A. Miguel, E. Lleida, A. Ortega. "Generalized gaussians for continuous observation distributions in speech recognition" V Jornadas en tecnología del habla. November 2008.

• A. Miguel, E. Lleida, A. Ortega. "Graphical models for discrete observation distributions in speech recognition" V jornadas en tecnología del habla. November 2008.

• J.E. García, A. Ortega, A. Miguel, E. Lleida. "Sistema de reconocimiento automático del habla distribuido aplicado a entornos logísticos" V jornadas en tecnología del habla. November 2008.

Journal Papers

• L. Buera, E. Lleida, A. Miguel, A. Ortega, O. Saz. "Cepstral Vector Normalization Based on Stereo Data for Robust Speech Recognition". IEEE Trans. On Audio Speech and Language Processing, vol.15, pp.1098-1113. March 2007.

Conferences

• L. Buera, A. Miguel, E. Lleida, A. Ortega, O. Saz. "Cross-Probability Model based on GMM for Feature Vector Normalization in Car Environments" .Biennial on DSP for in-Vehicle and Mobile Systems, Istanbul, Turkey. June. 2007.

• A. Miguel, L. Buera, E. Lleida, A. Ortega, O. Saz. "On-Line Feature and Acoustic Model Space Compensation for Robust Speech Recognition in Car Environment" .IEEE Intelligent Vehicles Symposium. June. 2007.

• L. Buera, A. Miguel, O. Saz, E. Lleida, A. Ortega. "Evaluation of the Combined Use of MEMLIN and MLLR on the Non-native Adaptation Task of Hiwire Project Database". Interspeech, August. 2007.

• L. Buera, A. Miguel, E. Lleida, O. Saz, A. Ortega. "On the Jointly Unsupervised Feature Vector Normalization and Acoustic Model Compensation for Robust Speech Recognition".Interspeech, August. 2007.

• L. Buera, A. Miguel, E. Lleida, O. Saz, A. Ortega. "Robust Speech Recognition with on-line Unsupervised Acoustic Feature" .IEEE Automatic Speech Recognition and Understanding Workshop, ASRU, December 2007.

• P. García, A. Hernández, J. P. Martínez, I. Martinez, E. Mayordomo, A. Ortega, I. Salinas, J. R. Solera, L. Vicente. "Distribución de la Carga Discente: Estudio sobre las titulaciones del Centro Politécnico Superior de la Universidad de Zaragoza.".II Jornadas de Innovación Educativa de la Escuela Politécnica Superior de Zamora. June 2007.

Book Chapters

• A. Ortega, E. Lleida, E. Masgrau, L. Buera, A. Miguel. "Acoustic Echo Reduction in a Two-Channel Speech Reinforcement System for Vehicles".Chapter 15 in "Digital Signal Processing for In-Vehicle and Mobile Systems 2", H. Abut, J.H.L. Hansen and K. Takeda (Eds.), Springer Science, New York, NY. May 2006.

Conferences

• A. Ortega, E. Lleida, E. J. Masgrau, L. Buera, A. Miguel. "Stability Control in a Two-Channel Speech Reinforcement System for Vehicles".International Conference on Acoustics, Speech and Signal Processing (ICASSP 2006). May 2006.

• J. P. Martínez, A. Ortega, A. Hernández, I. Salinas, P. García, L. Vicente, I. Martinez, J. Fernández. "Estudio de los perfiles y competencias profesionales en la titulación de Ingeniería de Telecomunicación" IV Congreso Internacional de Docencia Universitaria e Innovación (CIDUI), pp.535 (ISBN: 84-8458-244-4), Barcelona (Spain). July 2006.

• J. P. Martínez, A. Ortega, A. Hernández, I. Salinas, P. García, L. Vicente, I. Martinez, J. Fernández. "Evaluación de la carga discente de la titulación de Ingeniería de Telecomunicación: asignación de créditos ECTS" .IV Congreso Internacional de Docencia Universitaria e Innovación (CIDUI), pp. 288 (ISBN: 84-8458-244-4), Barcelona (Spain). July 2006.

• A. Miguel, E. Lleida, A. Juan, L. Buera, A. Ortega, O. Saz. "Local Transformation Models for Speech Recognition".in Interspeech - International Conference on Spoken Language Processing, ICSLP. Pittsburgh, USA, Sept 2006, pp. 1598–1601. September 2006.

• O. Saz, A. Miguel, E. Lleida, A. Ortega, L. Buera. "Study of Time and Frequency Variability in Pathological Speech and Error Reduction Methods for Automatic Speech Recognition".International Conference on Spoken Language Processing, (ICSLP 2006). September 2006.

• L. Buera, E. Lleida, J. A. Nolazco-Flores, A. Miguel, A. Ortega. "Time-dependent cross-probability model for Multi-Environment Model based LInear Normalization" .International Conference on Spoken Language Processing, (ICSLP 2006). September 2006.

• A. Uría, A. Ortega, M. I. Torres, A. Miguel, V. Guijarrubia, L. Buera, J. Garmendia, E. Lleida, O. Aizpuru, O. Saz. "A virtual butler controlled by speech".IV Jornadas en Tecnología del Habla, Zaragoza, Spain. November 2006.

• L. Buera, E. Lleida, A. Miguel, A. Ortega, O. Saz. "Time-dependent Cross-Probability Model for Feature Vector Normalization" .IV Jornadas en Tecnología del Habla, Zaragoza, Spain. November 2006.

• L. Buera, E. Lleida, J. D. Rosas, J. Villalba, A. Miguel , A. Ortega , O. Saz . "Verificación e Identificación de Locutor con Normalización de Vectores de Características en Entornos Acústicos Adversos".Terceras Jornadas de Reconocimiento Biométrico de Personas, Sevilla, Spain. November 2006.

• P. García, J. P. Martínez, E. Mayordomo, A. Ortega , I. Salinas, J. R. Solera, L. Vicente. "Estudio sobre la carga de trabajo del estudiante en las titulaciones del Centro Politécnico Superior".I Jornadas de Innovación Docente, Tecnologías de la Información y la Comunicación e Investigación Educativa en la Universidad de Zaragoza. November 2006.

Journal Papers

• P. García, A. Ortega, J. de Mingo, A. Valdovinos. "Nonlinear Distortion Cancellation using LINC Transmitters in OFDM Systems".IEEE Transactions on Broadcasting, vol. 51, no. 1, pp. 84-93. March 2005.

• P. García, J. de Mingo, A. Valdovinos, A. Ortega. "An Adaptive digital method of imbalances cancellation in LINC transmitters".IEEE Transactions on Vehicular Technology, vol. 54, no. 3, pp. 879-888. May 2005.

• A. Ortega, E. Lleida, E. Masgrau. "Speech reinforcement system for car cabin communications"IEEE Transactions on Speech and Audio Processing. vol. 13 no. 5. pp. 917-929. September 2005.

Conferences

• L. Buera, E. Lleida, A. Miguel, A. Ortega. "Recent Advances in PD-MEMLIN for Speech Recognition in Car Conditions".IEEE Automatic Speech Recognition and Understanding Workshop, ASRU 2005. San Juan, Puerto Rico. November 2005.

• L. Buera , E. Lleida, J. D. Rosas, J. Villalba, A. Miguel , A. Ortega, O. Saz.Speaker verification and identification using Phoneme Dependent Multi-Environment Models based LInear Normalization in adverse and dynamic acoustic environments".In Proc. "Summer School for Advanced studies on Biometrics for Secure Authentication: Multimodality ans System Integration", Alghero, Italy. June 2005.

• A. Ortega, E. Lleida, E. Masgrau, L. Buera, A. Miguel. "Acoustic Echo Reduction in a Two-Channel Speech Reinforcement System for Vehicles".Biennial on DSP for in-Vehicle and Mobile Systems Sesimbra, Portugal, September 2-3. Septiembre 2005.

• A. Ortega, E. Lleida, E. Masgrau, L. Buera, A. Miguel. "Acoustic Feedback Cancellation in Speech Reinforcement System for Vehicles".Interspeech'2005 - Eurospeech — 9th European Conference on Speech Communication and Technology. September 2005.

• A. Miguel, E. Lleida, R. Rose, L. Buera, A. Ortega. "Augmented State Space Acoustic Decoding for Modeling Local Variability in Speech".Interspeech'2005 - Eurospeech — 9th European Conference on Speech Communication and Technology. September 2005.

• L. Buera, E. Lleida, A. Miguel, A. Ortega. "Multi-Environment Linear Normalization for robust speech analysis in cars" .Biennial on DSP for in-Vehicle and Mobile Systems Sesimbra, Portugal, September 2005.

• L. Buera, E. Lleida, A. Miguel, A. Ortega. "Robust Speech Recognition in Cars using Phoneme Dependent Multi-Environment Linear Normalization".Interspeech'2005 - Eurospeech — 9th European Conference on Speech Communication and Technology. September 2005.

• E. Masgrau, A. Ortega, P. Ramos, L. Vicente, E. Lleida. "Tratamiento Robusto del Sonido en el Interior de Vehículos" XX Simposium Nacional de la Unión Científica Internacional de Radio URSI 2005. Gandía (Valencia). September 2005.

Conferences

• P. García, J. de Mingo, A. Valdovinos, A. Ortega. "Adaptive Imbalances Correction in LINC Transmitters" .The 5th European Wireless Conference: Mobile and Wireless Systems beyond 3G, Barcelona (Spain) Procedings, Pp. 235-239. February 2004.

• P. García, J. de Mingo, A. Valdovinos, A. Ortega. "Adaptive Digital Correction of Gain and Phase Imbalances in LINC Transmitters" 2004 IEEE 59TH Vehicular Technolgy Conference, VTC2004-Spring. Milan (Italy),CD Procedings. May. 2004.

• A. Ortega, F. Sukno, E. Lleida, A. Frangi, A. Miguel, L. Buera."AV@CAR: A Spanish Multichannel Multimodal Corpus for In-Vehicle Automatic Audio-Visual Speech Recognition".4th International Conferencece on Language Resources and Evaluation, Lisboa, Portugal. May 2004.

• L. Buera, E. Lleida, A. Miguel, A. Ortega. "Multi-Environments Model Based Linear Normalization for speech recognition in Car Conditions".Proceedings of the International Conference on Audio, Speech and Signal Processing, ICASSP-2004, Montreal, Canada. May 2004.

• P. García, J. de Mingo, A. Valdovinos, A. Ortega. "A Novel Digital Imbalances Cancellation Method in LINC Transmitters".The Seventh International Symposium on WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS. September 2004.

• L. Buera, E. Lleida, A. Miguel, A. Ortega. "Multi-environment models based linear normalization for robust speech recognition". Proceedings of the International Conference "Speech and Computer", SPECOM-2004, St. Petersburg, Russia. September 2004.

• P. García, A. Ortega, J. de Mingo, A. Valdovinos. "Nonlinear Distortion Cancellation in Ofdm Systems using an Adaptive Linc Structure".2004 15th International Symposium on Personal, Indoor and Mobile Radio Communications (pimrc 2004). September 2004.

• O. Saz, L. Buera, E. Lleida, A. Miguel, A. Ortega. "Algoritmos de Compensacion de Caracteristicas Cepstrales para Reconocimiento Automatico del Habla Robusto".III Jornadas en Tecnologias del Habla, Valencia, España. November 2004.

• L. Buera , E. Lleida, A. Miguel , A. Ortega, O. Saz . "Avances en la Normalizacion Cepstral con Señal Estereo para el Reconocimiento Robusto de Voz en el Entorno del Vehiculo" .III Jornadas de Tecnologías del Habla, Valencia, España. November 2004.

• O. Saz, L. Buera , E. Lleida, A. Miguel , A. Ortega . "Algoritmos de Compensación de Características Cepstrales para Reconocimiento Automático del Habla Robusto" .III Jornadas en Tecnología del Habla. November 2004.

• L. Buera , E. Lleida , A. Ortega , A. Miguel , O. Saz. "Avances en la Normalización Cepstral con Señal Estéreo para el Reconocimiento Robusto de Voz en el Entorno del Vehículo" .III Jornadas en Tecnología del Habla,. November 2004.

• A. Ortega , F. Sukno, E. Lleida , A. Frangi , A. Miguel , L. Buera , E. Zacur. "Base de Datos Audiovisual y Multicanal en Castellano para Reconocimiento Automático del Habla Multimodal en el Automóvil" .III Jornadas en Tecnología del Habla. November 2004.

• A. Miguel , Richard , E. Lleida , L. Buera , A. Ortega , O. Saz . "Decodificador Eficiente para Normalización del Tracto Vocal en Reconocimiento Automático del Habla en Tiempo Real" .III Jornadas en Tecnología del Habla. November 2004.

• E. A. Viruete , C. Hernández , J. Ruiz , J. Fernández , A. Alesanco , E. Lleida , A. Ortega , A. Hernández , A. Valdovinos , J. García. "Sistema de telemonitorización en vehículos de emergencias médicas sobre UMTS" .Actas del XXII Congreso Anual de la Sociedad Española de Ingeniería Biomédica CASEIB 2004, Santiago de Compostela, pp. 111-114. November 2004.

Conferences

• A. Ortega , E. Lleida , E. Masgrau . "Residual Echo Power Estimation for Speech Reinforcement Systems in Vehicles" .Proceedings de EUROSPEECH’03. Ginebra (Suiza). September 2003.

• P. García , J. de Mingo , A. Valdovinos , A. Ortega . "Método adaptativo para el equilibrio de las ramas de un transmisor LINC" .XVIII Simposiun Nacional de U.R.S.I. (Union of Radio Science International).Libro de Actas: CD-ROM, ISBN-84-9749-081-9. September 2003.

Conferences

• A. Ortega , E. Lleida , E. Masgrau , F. Gallego. "Cabin car communication system to improve communication inside a car" . Proccedings of IEEE Int. Conf. on Acoustics, Speech and Signal Processing ICASSP'02. Orlando (USA), vol. 4, pp. 386-389. May 2002.

• A. Ortega , E. Lleida , E. Masgrau . "Speech reinforce inside vehicles" .Proceedings of the 21st International Conference of the Audio Engineering Society. AES 2002. St. Petersburg (Russia). pp. 91-99. June 2002.

• A. Ortega , E. Lleida , E. Masgrau. "DSP to improve oral communications inside vehicles" .Proceedings of European Signal Processing Conference EUSIPCO'02. Toulouse (France). September 2002.

• E. Lleida , E. Masgrau , A. Ortega , A. Miguel . "Reconocimiento Automático del Habla en Vehículos, Resultados con Speech-Dat Car" .Libro de Actas Jornadas en Tecnologías del Habla. Granada 2002.

• E. Lleida , E. Masgrau , A. Ortega , A. Miguel , L. Buera . "Reconocimiento Automático del Habla en vehículos, resultados con Speech-Dat Car" .Speech-Dat Car database results. December 2002.

Conferences

• E. Lleida , E. J. Masgrau , A. Ortega. "Acoustic Echo Control and Noise Reduction for Cabin Car Communication" .Proccedings of European Conference on Speech Communication and Technology EUROSPEECH'01. Aalborg (Denmark), vol. 3, pp 1585-1588. September 2001.

• A. Ortega , E. Lleida , E. Masgrau . "Sistema de Comunicación oral para el interior de automóviles" .Libro de Actas Simposium Nacional de la Unión Internacional de Radio URSI 01. Madrid. 541-542. September 2001.

Conferences

• A. Ortega, E. J. Masgrau , E. Lleida . "Control activo de ruido con ecualización del camino secundario" .Libro de Actas Simposium Nacional de la Unión Internacional de Radio URSI 00. Zaragoza. 55-56. September 2000.