Automatically Convert Treebank from Phase Structure to Dependency Structure
Qiang Zhou · Zhongwen xinxi xuebao · 2005
Automatically conversion between different annotated treebank is an important subject of natural language processing. After a brief summarization of several treebank annotation schema and conversion between them, we proposed a new converting algorithm to automatically convert Tsinghua Chinese Treebank(TCT for brief) from phase structure to dependency structure. This algorithm makes full use of syntactic constituent tag and grammatical relation tag of TCT, and generates dependency structure treebank. The output dependency treebank indicates not only hierarchy dependency relationship between nodes, but also specified type of such dependency relationship. Precision of the conversion reaches 97.37%.