Paper: Topological Field Parsing of German

ACL ID P09-1008
Title Topological Field Parsing of German
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2009

Freer-word-order languages such as Ger- man exhibit linguistic phenomena that present unique challenges to traditional CFG parsing. Such phenomena produce discontinuous constituents, which are not naturally modelled by projective phrase structure trees. In this paper, we exam- ine topological field parsing, a shallow form of parsing which identifies the ma- jor sections of a sentence in relation to the clausal main verb and the subordinat- ing heads. We report the results of topo- logical field parsing of German using the unlexicalized, latent variable-based Berke- ley parser (Petrov et al., 2006) Without any language- or model-dependent adapta- tion, we achieve state-of-the-art results on the T¨uBa-D/Z corpus, and a modified NE- GRA corpus that has been automatically annotated with topol...