Luis Hernández

Also published as: Luis A. Hernandez, Luis A. Hernández, Luis A. Hernández Gómez, Luis Hernández Gomez, Luis Hernández Gómez


2008

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Design of a Multimodal Database for Research on Automatic Detection of Severe Apnoea Cases
Rubén Fernández | Luis A. Hernández | Eduardo López | José Alcázar | Guillermo Portillo | Doroteo T. Toledano
Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08)

The aim of this paper is to present the design of a multimodal database suitable for research on new possibilities for automatic diagnosis of patients with severe obstructive sleep apnoea (OSA). Early detection of severe apnoea cases can be very useful to give priority to their early treatment optimizing the expensive and time-consuming tests of current diagnosis methods based on full overnight sleep in a hospital. This work is part of an on-going collaborative project between medical and signal processing groups towards the design of a multimodal database as an innovative resource to promote new research efforts on automatic OSA diagnosis through speech and image processing technologies. In this contribution we present the multimodal design criteria derived from the analysis of specific voice properties related to OSA physiological effects as well as from the morphological facial characteristics in apnoea patients. Details on the database structure and data collection methodology are also given as it is intended to be an open resource to promote further research in this field. Finally, preliminary experimental results on automatic OSA voice assessment are presented for the collected speech data in our OSA multimodal database. Standard GMM speaker recognition techniques obtain an overall correct classification rate of 82%. This represents an initial promising result underlining the interest of this research framework and opening further perspectives for improvement using more specific speech and image recognition technologies.

2007

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A “Person” in the Interface: Effects on User Perceptions of Multibiometrics
Álvaro Hernández | Beatriz López | David Díaz | Rubén Fernández | Luis Hernández | Javier Caminero
Proceedings of the Workshop on Embodied Language Processing

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Design and Validation of ECA Gestures to Improve Dialogue System Robustness
Beatriz López | Álvaro Hernández | David Díaz | Rubén Fernández | Luis Hernández | Doroteo Torre
Proceedings of the Workshop on Embodied Language Processing

2003

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AGORA. Multilingual Multiplatform Architecture for the development of Natural Language Voice Services
Jose Relaño-Gil | Mari Carmen Rodriguez-Gancedo | Luis Villarrubia | Luis Hernández Gomez
Demonstrations

2002

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HMMs for Automatic Phonetic Segmentation
Doroteo Torre Toledano | Luis A. Hernández Gómez
Proceedings of the Third International Conference on Language Resources and Evaluation (LREC’02)

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Design and Evaluation of a SLDS for E-Mail Access through the Telephone
Nuria Bel | Javier Caminero | Luis Hernández | Montserrat Marimón | José F. Morlesín | Josep M. Otero | José Relaño | M. Carmen Rodríguez | Pedro M. Ruz | Daniel Tapias
Proceedings of the Third International Conference on Language Resources and Evaluation (LREC’02)

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A XML-based tool for evaluation of SLDS
Marcela Charfuelán | Luis Hernández Gómez | Cristina Esteban López | Holmer Hemsen
Proceedings of the Third International Conference on Language Resources and Evaluation (LREC’02)

2000

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Dialogue Annotation for Language Systems Evaluation
Marcela Charfuelán | José Relaño Gil | M. Carmen Rodríguez Gancedo | Daniel Tapias Merino | Luis Hernández Gómez
Proceedings of the Second International Conference on Language Resources and Evaluation (LREC’00)

1999

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Robust and Flexible Mixed-Initiative Dialogue for Telephone Services
Jose Relano Gil | Daniel Tapias | Maria C. Gancedo | Marcela Charfuelan | Luis A. Hernandez
Ninth Conference of the European Chapter of the Association for Computational Linguistics