Sciweavers

Share
EMNLP
2007

Treebank Annotation Schemes and Parser Evaluation for German

9 years 3 months ago
Treebank Annotation Schemes and Parser Evaluation for German
Recent studies focussed on the question whether less-configurational languages like German are harder to parse than English, or whether the lower parsing scores are an artefact of treebank encoding schemes and data structures, as claimed by K¨ubler et al. (2006). This claim is based on the assumption that PARSEVAL metrics fully reflect parse quality across treebank encoding schemes. In this paper we present new experiments to test this claim. We use the PARSEVAL metric, the Leaf-Ancestor metric as well as a dependency-based evaluation, and present novel approaches measuring the effect of controlled error insertion on treebank trees and parser output. We also provide extensive past-parsing crosstreebank conversion. The results of the experiments show that, contrary to K¨ubler et al. (2006), the question whether or not German is harder to parse than English remains undecided.
Ines Rehbein, Josef van Genabith
Added 29 Oct 2010
Updated 29 Oct 2010
Type Conference
Year 2007
Where EMNLP
Authors Ines Rehbein, Josef van Genabith
Comments (0)
books