COST278 and ISCA tutorial and research workshop (ITRW) on robustness issues in conversational interaction, Date: 2004/08/30 - 2004/08/31, Location: Norwich, UK
Publication date:
2004-08-01
Proceedings COST278 and ISCA tutorial and research workshop (ITRW) on robustness issues in conversational interaction
Author:
Duchateau, Jacques
Laureys, Tom ; Wambacq, Patrick
Keywords:
PSI_SPEECH
Abstract:
Compared to dictation systems, recognition systems for spontaneous speech still perform rather poorly. An important weakness in these systems is the statistical language model, mainly due to the lack of large amounts of stylistically matching training data and to the occurrence of disfluencies in the recognition input. In this paper we investigate a method for improving the robustness of a spontaneous language model by flexible manipulation of the prediction context when disfluencies occur. In the case of repetitions, we obtained significantly better recognition results on a benchmark Switchboard test set.