Paper: Unified Dependency Parsing of Chinese Morphological and Syntactic Structures

ACL ID D12-1132
Title Unified Dependency Parsing of Chinese Morphological and Syntactic Structures
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2012
Authors

Most previous approaches to syntactic pars- ing of Chinese rely on a preprocessing step of word segmentation, thereby assuming there was a clearly defined boundary between mor- phology and syntax in Chinese. We show how this assumption can fail badly, leading to many out-of-vocabulary words and incom- patible annotations. Hence in practice the strict separation of morphology and syntax in the Chinese language proves to be untenable. We present a unified dependency parsing ap- proach for Chinese which takes unsegmented sentences as input and outputs both morpho- logical and syntactic structures with a single model and algorithm. By removing the inter- mediate word segmentation, the unified parser no longer needs separate notions for words and phrases. Evaluation proves the effective- ness o...