Paper: Japanese Dependency Analysis Using the Ancestor-Descendant Relation

ACL ID D07-1063
Title Japanese Dependency Analysis Using the Ancestor-Descendant Relation
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2007
Authors

We propose a novel method for Japanese de- pendency analysis, which is usually reduced to the construction of a dependency tree. In deterministic approaches to this task, depen- dency trees are constructed by series of ac- tions of attaching a bunsetsu chunk to one of the nodes in the tree being constructed. Con- ventional techniques select the node based on whether the new bunsetsu chunk and each node in the trees are in a parent-child rela- tion or not. However, tree structures include relations between two nodes other than the parent-child relation. Therefore, we use ancestor-descendant relations in addition to parent-child relations, so that the added re- dundancy helps errors be corrected. Ex- perimental results show that the proposed method achieves higher accuracy.