Abstract
The structure of a discourse is reflected in many aspects of its linguistic realization, including its lexical, prosodic, syntactic, and semantic nature. Multi-party dialog contains a particular kind of discourse structure, the dialog act (DA). Like other types of structure, the dialog act sequence of a conversation is also reflected in its lexical, prosodic, and syntactic realization. This paper presents a preliminary investigation into the realization of a particular class of dialog acts which play an essential structuring role in dialog, the backchannels or acknowledgements tokens.[…]
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