Article | Proceedings of the 20th Nordic Conference of Computational Linguistics, NODALIDA 2015, May 11-13, 2015, Vilnius, Lithuania | Improving the Cross-Lingual Projection of Syntactic Dependencies
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Title:
Improving the Cross-Lingual Projection of Syntactic Dependencies
Author:
Jörg Tiedemann: Department of Linguistics and Philology, Uppsala University, Sweden
Download:
Full text (pdf)
Year:
2015
Conference:
Proceedings of the 20th Nordic Conference of Computational Linguistics, NODALIDA 2015, May 11-13, 2015, Vilnius, Lithuania
Issue:
109
Article no.:
024
Pages:
191-199
No. of pages:
9
Publication type:
Abstract and Fulltext
Published:
2015-05-06
ISBN:
978-91-7519-098-3
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Series:
NEALT Proceedings Series
Publisher:
Linköping University Electronic Press, Linköpings universitet


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This paper presents several modifications of the standard annotation projection algorithm for syntactic structures in cross-lingual dependency parsing. Our approach avoids unnecessary dummy nodes and includes efficient data sub-set selection techniques that have a substantial impact on parser performance in terms of labeled attachment scores. We test our techniques on data from the Universal Dependency Treebank and demonstrate the improvements on a number of language pairs. We also look at treebank translation including syntax-base models and data combination techniques that push the performance even further. We achieve absolute improvements of up to almost six points in labeled attachment scores pushing the state-of-the art in cross-lingual dependency parsing for all language pairs tested in our experiments.

Proceedings of the 20th Nordic Conference of Computational Linguistics, NODALIDA 2015, May 11-13, 2015, Vilnius, Lithuania

Author:
Jörg Tiedemann
Title:
Improving the Cross-Lingual Projection of Syntactic Dependencies
References:

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Proceedings of the 20th Nordic Conference of Computational Linguistics, NODALIDA 2015, May 11-13, 2015, Vilnius, Lithuania

Author:
Jörg Tiedemann
Title:
Improving the Cross-Lingual Projection of Syntactic Dependencies
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