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Using dynamic user models in the recognition of the plans of the user

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Abstract

This paper is concerned with information-seeking dialogues in a restricted domain (we consider a consultation system for a Computer Science Department, delivering information about the various tasks that the users may want to perform: for example, how to access the library, get information about the courses of the Department, etc.) and presents a framework where a plan recognition and a user modeling component are integrated to cooperate in the task of identifying the user's plans and goals. The focus of the paper is centered on the techniques used for building the user model and exploiting it in the determination of the user's intentions. For this task, we use stereotypes and we propose some inference rules for expanding the user model by inferring the user's beliefs from both the sentences s/he utters and the information stored in the plan library of the system, that describes the actions in the domain. Moreover, we introduce some disambiguation rules that are applied to the information in the user model for restricting the set of ambiguous hypotheses on the user's plans and goals to the most plausible ones. This also simplifies a further clarification dialogue if it is necessary for a precise identification of the user's intentions.

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Authors and Affiliations

  1. Dipartimento di Informatica, Università di Torino, Cso Svizzera 185, 10149, Torino, Italy

    Liliana Ardissono & Dario Sestero

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  1. Liliana Ardissono
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  2. Dario Sestero
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Ardissono, L., Sestero, D. Using dynamic user models in the recognition of the plans of the user. User Model User-Adap Inter 5, 157–190 (1995). https://doi.org/10.1007/BF01099760

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