Alfonso-Ortega

Address

Ada Byron Building, María de Luna 1, 50018, Zaragoza, Spain

Contact Information

Email: ortega@unizar.es

Alfonso Ortega

Senior Lecturer & Research fellow

ViVoLab, Aragón Institute for Engineering Research (I3A)
University of Zaragoza, Spain

Biography

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

100 registros « 1 de 20 »

2021

Viñals, Ignacio; Ortega, Alfonso; Miguel, Antonio; Lleida, Eduardo

The Domain Mismatch Problem in the Broadcast Speaker Attribution Task Artículo de revista

Applied Sciences, 11 (18), pp. 8521, 2021.

Enlaces | BibTeX

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), 2021-September , 2021.

Enlaces | BibTeX

Mingote, Victoria; Miguel, Antonio; Ortega, Alfonso; Lleida, Eduardo

Log-Likelihood-Ratio Cost Function as Objective Loss for Speaker Verification Systems Conferencia

Proceedings of the Annual Conference of the International Speech Communication Association (INTERSPEECH), 2021-September , 2021.

Enlaces | BibTeX

Gimeno, Pablo; Mingote, Victoria; Ortega, Alfonso; Miguel, Antonio; Lleida, Eduardo

Generalising AUC Optimisation to Multiclass Classification for Audio Segmentation with Limited Training Data Artículo de revista

IEEE Signal Processing Letters, 28 , pp. 1135-1139, 2021.

Enlaces | BibTeX

Gimeno, Pablo; Ribas, Dayana; Ortega, Alfonso; Miguel, Antonio; Lleida, Eduardo

Convolutional Recurrent Neural Networks for Speech Activity Detection in Naturalistic Audio from Apollo Missions Conferencia

Proceedings of XI Jornadas en Tecnología del Habla and VII Iberian SLTech (Iberspeech), 2021-March , 2021.

Enlaces | BibTeX

100 registros « 1 de 20 »

Education

  1. 2005

    Ph.D. in Telecommunications Engineering

    University of Zaragoza
  2. 2000

    B.S. and M.S. degrees in Telecommunications Engineering

    University of Zaragoza

Professional Experience

  1. 2019
    Associate Director of Technology Transfer
    Aragón Institute for Engineering Research (I3A)
  2. 2001
    Associate Professor
    University of Zaragoza, Spain

Awards & Prizes

  • 2005
    Ph.D. Extraordinary Award
    University of Zaragoza, Spain
  • 2005
    Telefónica Chair Award
    Telefónica, Spain
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