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Title:Probabilistic Parsing for German using Sister-Head Dependencies
Authors: Amit Dubey ; Frank Keller
Date: 2003
Publication Title:Proceedings of ACL 2003 (Meeting of the Association for Computational Linguistics)
Publisher:Association for Computational Linguistics
Publication Type:Conference Paper Publication Status:Published
Page Nos:96-103
DOI:10.3115/1075096.1075109 ISBN/ISSN:1-932432-0
We present a probabilistic parsing model for German trained on the Negra treebank. We observe that existing lexicalized parsing models using head-head dependencies, while successful for English, fail to outperform an unlexicalized baseline model for German. Learning curves show that this effect is not due to lack of training data. We propose an alternative model that uses sister-head dependencies instead of head-head dependencies. This model outperforms the baseline, achieving a labeled precision and recall of up to 74%. This indicates that sister-head dependencies are more appropriate for treebanks with very flat structures such as Negra.
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Bibtex format
author = { Amit Dubey and Frank Keller },
title = {Probabilistic Parsing for German using Sister-Head Dependencies},
book title = {Proceedings of ACL 2003 (Meeting of the Association for Computational Linguistics)},
publisher = {Association for Computational Linguistics},
year = 2003,
pages = {96-103},
doi = {10.3115/1075096.1075109},
url = {},

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