LREC 2006 - Proceedings sorted by papers

Title	Improving coverage and parsing quality of a large-scale LFG for German
Authors	C. Rohrer, M. Forst
Abstract	We describe experiments in parsing the German TIGER Treebank. In parsing the complete treebank, 86.44% of the sentences receive full parses; 13.56% receive fragment parses. We discuss the methods used to enhance coverage and parsing quality and we present an evaluation on a gold standard, to our knowledge the first one for a deep grammar of German. Considering the selection performed by our current version of a stochastic disambiguation component, we achieve an f-score of 84.2%, the upper and lower bounds being 87.4% and 82.3% respectively.
Keywords	LFG, parsing, hand-crafted grammars, parser evaluation, German parsers
Full paper	Improving coverage and parsing quality of a large-scale LFG for German

Title

Improving coverage and parsing quality of a large-scale LFG for German

Authors

C. Rohrer, M. Forst

Abstract

We describe experiments in parsing the German TIGER Treebank. In parsing the complete treebank, 86.44% of the sentences receive full parses; 13.56% receive fragment parses. We discuss the methods used to enhance coverage and parsing quality and we present an evaluation on a gold standard, to our knowledge the first one for a deep grammar of German. Considering the selection performed by our current version of a stochastic disambiguation component, we achieve an f-score of 84.2%, the upper and lower bounds being 87.4% and 82.3% respectively.

Keywords

LFG, parsing, hand-crafted grammars, parser evaluation, German parsers

Full paper

Improving coverage and parsing quality of a large-scale LFG for German