Correcting Errors in a Treebank Based on Synchronous Tree Substitution Grammar

This paper proposes a method of correcting annotation errors in a treebank. By using a synchronous grammar, the method transforms parse trees containing annotation errors into the ones whose errors are corrected. The synchronous grammar is automatically induced from the treebank. We report an experimental result of applying our method to the Penn Treebank. The result demonstrates that our method corrects syntactic annotation errors with high precision.

• Type: Journal
• Year: 2010
• Where: ACL
• Authors: Yoshihide Kato, Shigeki Matsubara
• Keywords: ACL 2010, Annotation Errors, Computational Linguistics, Synchronous Grammar, Treebank