Requesting clarifications with speech and gestures
Résumé
In multimodal natural language interaction both speech and non-speech gestures are involved in the basic mechanism of grounding and repair. We discuss a couple of multimodal clarification requests and argue that gestures, as well as speech expressions, underlie comparable parallelism constraints. In order to make this precise, we slightly extend the formal dialogue framework KoS to cover also gestural counterparts of verbal locutionary propositions.