Timing detection for realtime dialog systems using prosodic and linguistic information
Masashi Takeuchi, Norihide Kitaoka, Seiichi Nakagawa · 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 user's pause.We evaluated the timing generator by subjective and objective evaluation.