Prague Dependency Treebank -- Consolidated 2.0: Enriching a Complex Annotation Scheme
This resource provides a richly annotated corpus for linguistic research and NLP tool development, particularly for Czech language processing and cross-linguistic comparisons.
The authors present the Prague Dependency Treebank -- Consolidated 2.0, a uniformly annotated, genre-diversified, almost 4 million token Czech language resource with linked layers including coreference and discourse relations, concluding a 30-year project. The corpus and trained parsers are publicly available.
The Prague Dependency Treebank framework is unique in its attempt to systematically include and link different layers of language, including a meaning representation with several types of inter-sentential phenomena, especially coreference and discourse relations. We present its second consolidated version (PDT-C 2.0), which concludes almost 30-years long project of sustained development of the resource to a uniformly and coherently annotated, genre-diversified, almost 4 million token language resource of Czech language, with accompanying fully compatible lexicons. In addition to continuous linguistic research, the richly linguistically annotated corpus is also widely used in international comparisons of the development of traditional and novel NLP tools as well as in conversions into other formalisms. The corpus and the trained parsers are available under the CC BY-NC-SA licence.