ACL Anthology Network (All About NLP) (beta) The Association Of Computational Linguistics Anthology Network |
ACL ID | D07-1063 |
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Title | Japanese Dependency Analysis Using the Ancestor-Descendant Relation |
Venue | Conference on Empirical Methods in Natural Language Processing |
Session | Main Conference |
Year | 2007 |
Authors |
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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.