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The agreement process: an empirical investigation of human-human computer-mediated collaborative dialogs

In this paper, we investigate the empirical correlates of the agreement process. Informally, the agreement process is the dialog process by which collaborators achieve joint commitment on a joint action. We propose a specific instantiation of the agreement process, derived from our theoretical model, that integrates the IRMA framework for rational problem solving (Bratman, Israel & Pollack, 1988) with Clark's (1992, 1996) work on language as a collaborative activity; and from the characteristics of our task, a simple design problem (furnishing a two-room apartment) in which knowledge is equally distributed among agents, and needs to be shared. The main contribution of our paper is an empirical study of some of the components of the agreement process. We first discuss why we believe the findings from our corpus of computer-mediated dialogs are applicable to human?human collaborative dialogs in general. We then present our theoretical model, and apply it to make predictions about the components of the agreement process. We focus on how information is exchanged in order to arrive at a proposal, and on what constitutes a proposal and its acceptance/rejection. Our corpus study makes use of features of both the dialog and the domain reasoning situation, and led us to discover that the notion of commitment is more useful to model the agreement process than that of acceptance/rejection, as it more closely relates to the unfolding of negotiation.