TAILIEUCHUNG - Báo cáo khoa học: "Dealing with distinguishing descriptions in a guided composition system"

The goal of this paper is to provide computable account for some definite descriptions. To this end, we define in terms of inclusion the notion of distinguishing description and of distinguishable entities introduced by [Dale 89]. These def'mitions allow us to give conditions of wellformedness for incomplete distinguishing descriptions. We also extend the notion of distinguishing description to take into account cases of synonymy and hyponymy. We describe a real application of a guided composition system where this sort of expressions arise. . | Dealing with distinguishing descriptions in a guided composition system Pascal Mouret Monique Rolbert Laboratoire d Informatique de Marseille Université de la Mediterranée Faculte des Sciences de Luminy Case 901 163 Avenue de Luminy 13288 Marseille France @ Abstract The goal of this paper is to provide computable account for some definite descriptions. To this end we define in terms of inclusion the notion of distinguishing description and of distinguishable entities introduced by Dale 89 . These definitions allow US to give conditions of wellformedness for incomplete distinguishing descriptions. We also extend the notion of distinguishing description to take into account cases of synonymy and hyponymy. We describe a real application of a guided composition system where this sort of expressions arise. Many studies in natural language processing are concerned with how to generate or understand definite descriptions that evoke a discourse entity already inttoduced in the context. An interesting solution to this problem was proposed by Dale 89 in terms of distinguishing descriptions and distinguishable entities. Informally a distinguishing description is a definite description which designates one and only one entity among others in a context set. Many natural language interfaces need to deal with this sort of NPs. We develop an application where these NPs occur in a particular way the application works in a guided composition mode where correct sentences have to be produced word by word by the system. So the problem of the contextual correctness of an incomplete distinguishing description arises. Moreover the system has to understand complete or incomplete distinguishing descriptions in wider cases of references than those intended by Dale 89 including cases of hyponymy and so on. We are going to show that the way we refine the notions introduced by Dale allows us to heat these two points in a rather simple

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