Conference Proceedings
Treeblazing: Using External Treebanks to Filter Parse Forests for Parse Selection and Treebanking
A MacKinlay, R Dridan, D Flickinger, S Oepen, T Baldwin
Ijcnlp 2011 Proceedings of the 5th International Joint Conference on Natural Language Processing | IJCNLP2011 | Published : 2011
Abstract
We describe “treeblazing”, a method of using annotations from the GENIA treebank to constrain a parse forest from an HPSG parser. Combining this with self-training, we show significant dependency score improvements in a task of adaptation to the biomedical domain, reducing error rate by 9% compared to out-of-domain gold data and 6% compared to self-training. We also demonstrate improvements in treebanking efficiency, requiring 25% fewer decisions, and 17% less annotation time.