Date of Original Version

8-2013

Type

Conference Proceeding

Journal Title

Proceedings of the Annual Meeting of the Association for Computational Linguistics (ACL)

First Page

617

Last Page

622

Rights Management

Copyright 2013 ACL

Abstract or Description

We present fast, accurate, direct nonprojective dependency parsers with thirdorder features. Our approach uses AD3 , an accelerated dual decomposition algorithm which we extend to handle specialized head automata and sequential head bigram models. Experiments in fourteen languages yield parsing speeds competitive to projective parsers, with state-ofthe-art accuracies for the largest datasets (English, Czech, and German)

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Published In

Proceedings of the Annual Meeting of the Association for Computational Linguistics (ACL), 617-622.