John Pate and Detmar Meurers
Proceedings of the Sixth Workshop on Treebanks and Linguistic Theories (TLT 2007). Bergen, Norway.
As an extension of decades of syntactic theorizing, treebanks have inherited a small set of phrasal categories, which abstract over the environments that the categories can occur in. Extending ideas from Johnson (1998), we explore encoding information from the local tree context in each category. We then discuss two clustering techniques which preserve the distributionally relevant category distinction, forming linguistically relevant generalizations and improving PCFG parsing performance.
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Bibtex entry:
@InProceedings{boyd-et-al:07a,
author = {John Pate and Detmar Meurers},
title = {Refining Syntactic Categories Using Local Contexts --
Experiments in Unlexicalized PCFG Parsing},
booktitle = {Proceedings of the Sixth Workshop on Treebanks
and Linguistic Theories (TLT 2007)},
address = {Bergen, Norway},
url = {http://purl.org/dm/papers/pate-meurers-07a.html},
year = {2007}
}