Email: ortega@unizar.es
Address: Ada Byron Building, María de Luna 1, 50018, Zaragoza, Spain
Senior Lecturer & Research fellow
ViVoLab, Aragón Institute for Engineering Research (I3A)
University of Zaragoza, Spain
ABOUT ME
Alfonso Ortega is member of the Aragón Institute for Engineering Research in the School of Engineering and Architecture at the University of Zaragoza, Zaragoza (Spain). He was born in Teruel, Spain and received the Telecommunication Engineering and the Ph. D. degrees from the University of Zaragoza in 2000 and 2005, respectively.
His Ph. D. Thesis, advised by Dr. Eduardo Lleida, received the PhD Extraordinary Award and the Telefónica Chair Award to the best technological Ph. D. In 2006 he was visiting scholar in the Center for Robust Speech Systems (CRSS) of the University of Texas at Dallas, UTD, (USA). He has participated in more than 25 research projects funded by national or international public institutions and more than 15 research projects for private companies. He is author of more than 50 papers published in international journals or conference proceedings and several international patents.
He is presently Associate Professor in the Department of Electronic Engineering and Communications at the University of Zaragoza. His research interests span the areas of digital speech processing, speech enhancement, analysis and modeling of speech and speaker traits, automatic speaker verification, and robust automatic speech recognition. research team in speech recognition and signal processing.
PUBLICATIONS
2022
Gimeno, Pablo; Ribas, Dayana; Ortega, Alfonso; Miguel, Antonio; Lleida, Eduardo
Unsupervised Adaptation of Deep Speech Activity Detection Models to Unseen Domains Artículo de revista
En: Applied Sciences, vol. 12, no 4, pp. 1832, 2022.
@article{Gimeno2022,
title = {Unsupervised Adaptation of Deep Speech Activity Detection Models to Unseen Domains},
author = {Pablo Gimeno and Dayana Ribas and Alfonso Ortega and Antonio Miguel and Eduardo Lleida},
doi = {10.3390/app12041832},
year = {2022},
date = {2022-02-10},
urldate = {2022-02-10},
journal = {Applied Sciences},
volume = {12},
number = {4},
pages = {1832},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mingote, Victoria; Miguel, Antonio; Ribas, Dayana; Ortega, Alfonso; Lleida, Eduardo
aDCF Loss Function for Deep Metric Learning in End-to-End Text-Dependent Speaker Verification Systems Artículo de revista
En: IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 30, pp. 772-784, 2022.
@article{Mingote2022b,
title = {aDCF Loss Function for Deep Metric Learning in End-to-End Text-Dependent Speaker Verification Systems},
author = {Victoria Mingote and Antonio Miguel and Dayana Ribas and Alfonso Ortega and Eduardo Lleida},
doi = {10.1109/TASLP.2022.3145307},
year = {2022},
date = {2022-01-25},
urldate = {2022-01-25},
journal = {IEEE/ACM Transactions on Audio, Speech, and Language Processing},
volume = {30},
pages = {772-784},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mingote, Victoria; Viñals, Ignacio; Gimeno, Pablo; Miguel, Antonio; Ortega, Alfonso; Lleida, Eduardo
Multimodal Diarization Systems by Training Enrollment Models as Identity Representations Artículo de revista
En: Applied Sciences, vol. 12, no 3, pp. 1141, 2022.
@article{Mingote2022,
title = {Multimodal Diarization Systems by Training Enrollment Models as Identity Representations},
author = {Victoria Mingote and Ignacio Viñals and Pablo Gimeno and Antonio Miguel and Alfonso Ortega and Eduardo Lleida},
doi = {10.3390/app12031141},
year = {2022},
date = {2022-01-21},
urldate = {2022-01-21},
journal = {Applied Sciences},
volume = {12},
number = {3},
pages = {1141},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2021
Viñals, Ignacio; Ortega, Alfonso; Miguel, Antonio; Lleida, Eduardo
The Domain Mismatch Problem in the Broadcast Speaker Attribution Task Artículo de revista
En: Applied Sciences, vol. 11, no 18, pp. 8521, 2021.
@article{Viñals2021,
title = {The Domain Mismatch Problem in the Broadcast Speaker Attribution Task},
author = {Ignacio Viñals and Alfonso Ortega and Antonio Miguel and Eduardo Lleida},
doi = {10.3390/app11188521},
year = {2021},
date = {2021-09-15},
journal = {Applied Sciences},
volume = {11},
number = {18},
pages = {8521},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gimeno, Pablo; Ortega, Alfonso; Miguel, Antonio; Lleida, Eduardo
Unsupervised Representation Learning for Speech Activity Detection in the Fearless Steps Challenge 2021 Conferencia
Proceedings of the Annual Conference of the International Speech Communication Association (INTERSPEECH), vol. 2021-September, 2021.
@conference{Gimeno2021,
title = {Unsupervised Representation Learning for Speech Activity Detection in the Fearless Steps Challenge 2021},
author = {Pablo Gimeno and Alfonso Ortega and Antonio Miguel and Eduardo Lleida},
doi = {10.21437/Interspeech.2021-309},
year = {2021},
date = {2021-09-06},
booktitle = {Proceedings of the Annual Conference of the International Speech Communication Association (INTERSPEECH)},
volume = {2021-September},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}