Incorporating Asymmetric and Asynchronous Evidence of Understanding in a Grounding Model
Abstract
The grounding process relies on the evidence that speakers give about their understanding (Clark &Schaefer,89). However in existing formal models of grounding (Cahn, 92; Cahn & Brennan, 99; Traum, 99) evidence of understanding is assumed to be symmetrically and synchronously shared by the speakers. We propose a formal model, based on (Cahn, 92), that removes these simplifications; we do so by distinguishing the phase of interpretation from the phase of evidence extraction and introducing the notion of floating contributions.
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