Abstract
One of the ways in which discourse coheres is by means of repeated reference to entities. Theoretical accounts of referential coherence propose heuristics for the interpretation of referential expressions, which are especially important when there is more than one potential antecedent. One of the most explicit accounts is provided by Centering Theory (Grosz et al., Computational Linguistics 21: 203–225, 1995). Using features such as grammatical status, expression type, and the referential relation with sentences still further back in the discourse, it produces a ranking of discourse referents in terms of forward prominence. We present two corpus studies of how these features, in combination with discourse topichood, help to predict referential continuations in actual discourse.
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