Veins Theory: A Model of Global Discourse Cohesion and Coherence

  title={Veins Theory: A Model of Global Discourse Cohesion and Coherence},
  author={Dan Cristea and Nancy Ide and Laurent Romary},
In this paper, we propose a generalization of Centering Theory (CT) (Grosz, Joshi, Weinstein 1995) called Veins Theory (VT), which extends the applicability of centering rules from local to global discourse. A key facet of the theory involves the identification of «veins» over discourse structure trees such as those defined in RST, which delimit domains of referential accessibility for each unit in a discourse. Once identified, reference chains can be extended across segment boundaries, thus… CONTINUE READING
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