Skip to main content Skip to main navigation

Publikation

Extracting Supertags from HPSG-Based Treebanks

Günter Neumann; Berthold Crysmann
In: Srinivas Bangalore; Aravind Joshi (Hrsg.). Supertagging - Using Complex Lecial Descriptions in Natural Language Processing. Pages 313-335, ISBN 978-0-262-01387-1, MIT Press, Cambridge, Massachusetts, 2010.

Zusammenfassung

We describe a method for the automatic extraction of a Stochastic Lexicalized Tree Insertion Grammar from a linguistically rich HPSG Treebank. The extraction method is strongly guided by HPSG -based head and argument decomposition rules. The tree anchors correspond to lexical labels encoding fine-grained information. The approach has been tested with a German corpus achieving a labeled recall of 77.33% and labeled precision of 78.27%, which is competitive to recent results reported for German parsing using the Negra Treebank.