Flexible Response Choice Using Problem-Solving Plans and Rhetorical Relations
نویسندگان
چکیده
In this paper we present an architecture for choosing a flexible response in a natural language system involved in information-seeking tasks. Our work considers the crucial issue of choosing what information to provide and how to structure it, considering from the generation perspective a model of dialogue that was previously developed to study the recognition activity of an agent. In such a model the underlying reasoning activity of an agent is represented by means of problem-solving plans, that manage domain and linguistic actions. The correct choice of the information to provide depends on the ability to select the action that best suits the domain situation and an answer that conveys the information in a way appropriate to the user. For this reason we provide heuristic evaluation criteria that consider both participants' goals and some other context-related factors impacting on the evaluation of the action to allow the problem-solving plans to make a choice among the available alternatives. Furthermore, we discuss how to convey the raw material in a suitable and understandable way by using different rhetorical relations. A detailed example illustrates how our approach models in a flexible way aspects of the interaction overlooked by previous systems.
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