Introducing the Prague Discourse Treebank 1.0

We present the Prague Discourse Treebank 1.0, a collection of Czech texts annotated for various discourse-related phenomena "beyond the sentence boundary". The treebank contains manual annotations of (1), discourse connectives, their arguments and senses, (2), textual coreference, and (3), bridging anaphora, all carried out on 50k sentences of the treebank. Contrary to most similar projects, the annotation was performed directly on top of syntactic trees (from the previous project of the Prague Dependency Treebank 2.5), benefiting thus from the linguistic information already existing on the same data. In this article, we present our theoretical background, describe the annotations in detail, and offer evaluation numbers and corpus statistics.

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