Iterative Transformation of Annotation Guidelines for Constituency Parsing
Xiang Li, Wenbin Jiang, Yajuan Lv and Qun Liu
The 51st Annual Meeting of the Association for Computational Linguistics - Short Papers (ACL Short Papers 2013)
Sofia, Bulgaria, August 4-9, 2013
This paper presents an effective annotation adaptation algorithm for constituency treebanks, it transforms a treebank from one annotation guideline to another with an iterative optimization procedure, thus to build a much larger treebank to train an enhanced parser without increasement of model complexity. Experiments show that the transformed Tsinghua Chinese Treebank as additional training data brings significant improvement over the baseline trained on Penn Chinese Treebank only.
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