Comparación de modelos de lenguaje en tareas de transcripción automática de noticiarios televisivos

  1. Diéguez Tirado, Javier
  2. García Mateo, Carmen
  3. Cardenal López, Antonio
Revista:
Procesamiento del lenguaje natural

ISSN: 1135-5948

Ano de publicación: 2005

Número: 35

Páxinas: 269-276

Tipo: Artigo

Outras publicacións en: Procesamiento del lenguaje natural

Resumo

In this paper several language models for a bilingual broadcast news transcription task are investigated. A non-adapted approach is compared to various schemes based on mixture models. Through the use of a dynamic adaptation strategy, employing several decoders in parallel, a 20.7% reduction in the word error rate was achieved with respect to the non-adapted model. This paper also analyzes the problems of spontaneous speech, which have limited the improvements