Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Language Recognition using Phonotactic-based Shifted Delta Coefficients and Multiple Phone Recognizers
Año:2014
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones,
  • Ingeniería eléctrica, electrónica y automática
Datos
Descripción
A new language recognition technique based on the application of the philosophy of the Shifted Delta Coefficients (SDC) to phone log-likelihood ratio features (PLLR) is described. The new methodology allows the incorporation of long-span phonetic information at a frame-by-frame level while dealing with the temporal length of each phone unit. The proposed features are used to train an i-vector based system and tested on the Albayzin LRE 2012 dataset. The results show a relative improvement of 33.3% in Cavg in comparison with different state-of-the-art acoustic i-vector based systems. On the other hand, the integration of parallel phone ASR systems where each one is used to generate multiple PLLR coefficients which are stacked together and then projected into a reduced dimension are also presented. Finally, the paper shows how the incorporation of state information from the phone ASR contributes to provide additional improvements and how the fusion with the other acoustic and phonotactic systems provides an important improvement of 25.8% over the system presented during the competition.
Internacional
Si
Nombre congreso
15th Annual Conference of the International Speech Communication Association. Interspeech 2014
Tipo de participación
960
Lugar del congreso
Singapore
Revisores
Si
ISBN o ISSN
978-1-63439-435-2
DOI
Fecha inicio congreso
14/09/2014
Fecha fin congreso
18/09/2014
Desde la página
3042
Hasta la página
3046
Título de las actas
Proceedings Interspeech 2014
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Luis Fernando D'Haro Enriquez (UPM)
  • Autor: Ricardo de Cordoba Herralde (UPM)
  • Autor: Christian Raúl Salamea Palacios (UPM)
  • Autor: Javier Ferreiros Lopez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Tecnología del Habla
  • Departamento: Ingeniería Electrónica
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