Abstract / Description of output
Spoken dialogue systems need to track dialogue structure in order to conduct sensible conversations. In previous work, we used only a shallow analysis of past dialogue in predicting the current dialogue act. Here we show that a hierarchical analysis of dialogue structure can significantly improve dialogue act recognition. Our approach is to integrate dialogue act recognition with speech recognition, seeking a best overall hypothesis for what words have been spoken and what dialogue act they represent, in the light of both the dialogue history so far and the current speech signal. A useful feature of this approach is that intonation can be used to aid dialogue act recognition by combining it with other information sources in a natural way.
Original language | English |
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Pages (from-to) | 63–79 |
Journal | Speech Communication |
Volume | 36 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1 Jan 2002 |
Keywords / Materials (for Non-textual outputs)
- prosody
- intonation
- duration
- dialogue acts
- moves
- games
- discourse function
- prediction
- recognition