Distinguishable entities: definition and properties

  • Authors:
  • Monique Rolbert;Pascal Préa

  • Affiliations:
  • Aix-Marseille Université, Marseille, France;Laboratoire d'Informatique, Fondamentale de Marseille, LIF, École Centrale Marseille, Marseille, France

  • Venue:
  • ENLG '09 Proceedings of the 12th European Workshop on Natural Language Generation
  • Year:
  • 2009

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Abstract

Many studies in natural language processing are concerned with how to generate definite descriptions that evoke a discourse entity already introduced in the context. A solution to this problem has been initially proposed by Dale (1989) in terms of distinguishing descriptions and distinguishable entities. In this paper, we give a formal definition of the terms "distinguishable entity" in non trivial cases and we show that its properties lead us to the definition of a distance between entities. Then, we give a polynomial algorithm to compute distinguishing descriptions.