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

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More publications in: Procesamiento del lenguaje natural

Abstract

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

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