Down-stream effects of tree-to-dependency conversions

TY - GEN

T1 - Down-stream effects of tree-to-dependency conversions

AU - Elming, Jakob

AU - Johannsen, Anders Trærup

AU - Klerke, Sigrid

AU - Lapponi, Emanuele

AU - Martinez Alonso, Hector

AU - Søgaard, Anders

PY - 2013

Y1 - 2013

N2 - Dependency analysis relies on morphosyntactic evidence, as well as semantic evidence. In some cases, however, morphosyntactic evidence seems to be in conflict with semantic evidence. For this reason dependency grammar theories, annotation guidelines and tree-to-dependency conversion schemes often differ in how they analyze various syntactic constructions. Most experiments for which constituent-based treebanks such as the Penn Treebank are converted into dependency treebanks rely blindly on one of four-five widely used tree-to-dependency conversion schemes. This paper evaluates the down-streameffect of choice of conversion scheme, showing that it has dramatic impact on end results.

AB - Dependency analysis relies on morphosyntactic evidence, as well as semantic evidence. In some cases, however, morphosyntactic evidence seems to be in conflict with semantic evidence. For this reason dependency grammar theories, annotation guidelines and tree-to-dependency conversion schemes often differ in how they analyze various syntactic constructions. Most experiments for which constituent-based treebanks such as the Penn Treebank are converted into dependency treebanks rely blindly on one of four-five widely used tree-to-dependency conversion schemes. This paper evaluates the down-streameffect of choice of conversion scheme, showing that it has dramatic impact on end results.

M3 - Article in proceedings

VL - 1

SP - 617

EP - 626

BT - The 2013 Conference of the North American Chapter of the Association for Computational Linguistics

PB - Association for Computational Linguistics

ER -