Paper: Learning Reliable Information for Dependency Parsing Adaptation

ACL ID C08-1015
Title Learning Reliable Information for Dependency Parsing Adaptation
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2008

In this paper, we focus on the adaptation problem that has a large labeled data in the source domain and a large but unlabeled data in the target domain. Our aim is to learn reliable information from unlabeled target domain data for dependency pars- ingadaptation. Currentstate-of-the-artsta- tistical parsers perform much better for shorter dependencies than for longer ones. Thus we propose an adaptation approach by learning reliable information on shorter dependencies in an unlabeled target data to help parse longer distance words. The unlabeled data is parsed by a dependency parser trained on labeled source domain data. The experimental results indicate that our proposed approach outperforms the baseline system, and is better than cur- rent state-of-the-art adaptation techniques.