SUMMARY : Session

 

Title Exploring HPSG-based Treebanks for Probabilistic Parsing HPSG grammar extraction
Authors G. Neumann, B. Crysmann
Abstract 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.
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Full paper Exploring HPSG-based Treebanks for Probabilistic Parsing HPSG grammar extraction