Title

Automatic transformation of phrase treebanks to dependency trees

Author(s)

Michael Daum, Kilian A. Foth, Wolfgang Menzel

Natural Language Systems, Department of Computer Science, University of Hamburg

Session

P11-W

Abstract

Word-to-word dependency structures are useful for consistent representation and comparable evaluation of parsing results. However, most large-scale treebanks contain various variants of phrase structure trees, since automatic parsers usually produce constituent structures. We present a freely available extensible tool for converting phrase structure to dependencies automatically, and discuss its application to the NEGRA treebank of German.

Keyword(s)

treebank, dependency trees, phrase structure trees, corpus conversion

Language(s) German, English
Full Paper

489.pdf