Speech Prosody 2004
If a dialog system can respond to the user as reasonable as a human, the interaction will become smoother. Timing of response such as backchannels and turn-taking plays important role in such a smooth dialog as in human-human interaction. We are now developing a dialog system which can generate response timing in real time. In this paper, we introduce a response timing generator for such a dialog system. First, we analyzed conversations between two persons and extracted prosodic and linguistic information which had effects on the timing. Then we constructed a decision tree to detect the timing based on the features coming from the information and examined the decision rules. We also applied the decision tree to a timing generator. The timing generator decides the action of the system at every 100ms in users pause. We evaluated the timing generator by subjective and objective evaluation.
Bibliographic reference. Takeuchi, Masashi / Kitaoka, Norihide / Nakagawa, Seiichi (2004): "Timing detection for realtime dialog systems using prosodic and linguistic information", In SP-2004, 529-532.